diff --git a/packages/vitec/Classes/Command/SsrHealthSampleCommand.php b/packages/vitec/Classes/Command/SsrHealthSampleCommand.php
new file mode 100644
index 0000000..6c321ee
--- /dev/null
+++ b/packages/vitec/Classes/Command/SsrHealthSampleCommand.php
@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Evomedien\Vitec\Command;
+
+use Evomedien\Vitec\Service\SsrPurgeService;
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Http\RequestFactory;
+
+#[AsCommand(
+    name: 'vitec:ssr-health',
+    description: 'Sample the SSR node /__health into tx_vitec_ssrhealthlog (run via scheduler for history)',
+)]
+final class SsrHealthSampleCommand extends Command
+{
+    private const KEEP_DAYS = 14;
+
+    public function __construct(
+        private readonly SsrPurgeService $purgeService,
+        private readonly RequestFactory $requestFactory,
+        private readonly ConnectionPool $connectionPool,
+    ) {
+        parent::__construct();
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $endpoint = $this->purgeService->getHealthEndpoint();
+        if ($endpoint === '') {
+            $output->writeln('<error>SSR_HEALTH_ENDPOINT missing in var/vitec-ssr-purge.env</error>');
+            return Command::INVALID;
+        }
+        $row = ['crdate' => time(), 'ok' => 0, 'release_id' => '', 'cached_pages' => 0, 'cache_mb' => 0, 'response_ms' => 0];
+        $start = microtime(true);
+        try {
+            $response = $this->requestFactory->request($endpoint, 'GET', [
+                'timeout' => 4, 'connect_timeout' => 2, 'http_errors' => false,
+            ]);
+            $row['response_ms'] = (int)round((microtime(true) - $start) * 1000);
+            if ($response->getStatusCode() === 200) {
+                $data = json_decode((string)$response->getBody(), true);
+                $row['ok'] = !empty($data['ok']) ? 1 : 0;
+                $row['release_id'] = substr((string)($data['release']['release'] ?? ''), 0, 100);
+                $row['cached_pages'] = (int)($data['cachedPages'] ?? 0);
+                $row['cache_mb'] = (int)($data['cacheMB'] ?? 0);
+            }
+        } catch (\Throwable $e) {
+            $row['response_ms'] = (int)round((microtime(true) - $start) * 1000);
+        }
+        $conn = $this->connectionPool->getConnectionForTable('tx_vitec_ssrhealthlog');
+        $conn->insert('tx_vitec_ssrhealthlog', $row);
+        $conn->executeStatement(
+            'DELETE FROM tx_vitec_ssrhealthlog WHERE crdate < ?',
+            [time() - self::KEEP_DAYS * 86400]
+        );
+        $output->writeln(sprintf(
+            '%s release=%s pages=%d cache=%dMB %dms',
+            $row['ok'] ? '<info>ok</info>' : '<error>DOWN</error>',
+            $row['release_id'] ?: '-',
+            $row['cached_pages'],
+            $row['cache_mb'],
+            $row['response_ms']
+        ));
+        return Command::SUCCESS;
+    }
+}
diff --git a/packages/vitec/Classes/Command/SsrPurgeCommand.php b/packages/vitec/Classes/Command/SsrPurgeCommand.php
new file mode 100644
index 0000000..3dd1ac5
--- /dev/null
+++ b/packages/vitec/Classes/Command/SsrPurgeCommand.php
@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Evomedien\Vitec\Command;
+
+use Evomedien\Vitec\Service\SsrPurgeService;
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+#[AsCommand(
+    name: 'vitec:ssr-purge',
+    description: 'Purge paths (or everything with --all) from the SSR node page cache',
+)]
+final class SsrPurgeCommand extends Command
+{
+    public function __construct(private readonly SsrPurgeService $purgeService)
+    {
+        parent::__construct();
+    }
+
+    protected function configure(): void
+    {
+        $this->addArgument('paths', InputArgument::IS_ARRAY, 'Paths to purge, e.g. /products/aligo');
+        $this->addOption('all', null, InputOption::VALUE_NONE, 'Purge the whole cache ("*")');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $paths = $input->getOption('all') ? ['*'] : (array)$input->getArgument('paths');
+        if ($paths === []) {
+            $output->writeln('<error>No paths given (use arguments or --all).</error>');
+            return Command::INVALID;
+        }
+        $result = $this->purgeService->purge($paths, 'cli');
+        $output->writeln(sprintf(
+            '%s HTTP %d - %s (paths: %s)',
+            $result['success'] ? '<info>OK</info>' : '<error>FAILED</error>',
+            $result['httpCode'],
+            $result['message'],
+            implode(', ', $result['paths'])
+        ));
+        return $result['success'] ? Command::SUCCESS : Command::FAILURE;
+    }
+}
diff --git a/packages/vitec/Classes/Controller/Backend/SsrController.php b/packages/vitec/Classes/Controller/Backend/SsrController.php
new file mode 100644
index 0000000..af352bb
--- /dev/null
+++ b/packages/vitec/Classes/Controller/Backend/SsrController.php
@@ -0,0 +1,126 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Evomedien\Vitec\Controller\Backend;
+
+use Evomedien\Vitec\Service\SsrPurgeService;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Backend\Attribute\AsController;
+use TYPO3\CMS\Backend\Routing\UriBuilder;
+use TYPO3\CMS\Backend\Template\ModuleTemplateFactory;
+use TYPO3\CMS\Core\Core\Environment;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Http\RedirectResponse;
+use TYPO3\CMS\Core\Http\RequestFactory;
+use TYPO3\CMS\Core\Messaging\FlashMessage;
+use TYPO3\CMS\Core\Messaging\FlashMessageService;
+use TYPO3\CMS\Core\Type\ContextualFeedbackSeverity;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Backend module "VITEC SSR": live state of the SSR node, manual purge
+ * (single paths or everything) and the purge/health protocol.
+ */
+#[AsController]
+final class SsrController
+{
+    public function __construct(
+        private readonly ModuleTemplateFactory $moduleTemplateFactory,
+        private readonly SsrPurgeService $purgeService,
+        private readonly RequestFactory $requestFactory,
+        private readonly ConnectionPool $connectionPool,
+        private readonly FlashMessageService $flashMessageService,
+        private readonly UriBuilder $uriBuilder,
+    ) {}
+
+    public function indexAction(ServerRequestInterface $request): ResponseInterface
+    {
+        $view = $this->moduleTemplateFactory->create($request);
+        $view->setTitle('VITEC SSR');
+
+        $health = null;
+        $healthError = '';
+        $endpoint = $this->purgeService->getHealthEndpoint();
+        if ($endpoint === '') {
+            $healthError = 'var/vitec-ssr-purge.env fehlt oder ist unvollständig.';
+        } else {
+            $start = microtime(true);
+            try {
+                $response = $this->requestFactory->request($endpoint, 'GET', [
+                    'timeout' => 3, 'connect_timeout' => 2, 'http_errors' => false,
+                ]);
+                if ($response->getStatusCode() === 200) {
+                    $health = json_decode((string)$response->getBody(), true) ?: null;
+                    if ($health !== null) {
+                        $health['responseMs'] = (int)round((microtime(true) - $start) * 1000);
+                    }
+                } else {
+                    $healthError = 'HTTP ' . $response->getStatusCode();
+                }
+            } catch (\Throwable $e) {
+                $healthError = $e->getMessage();
+            }
+        }
+
+        $view->assignMultiple([
+            'flagOn' => file_exists(Environment::getVarPath() . '/vitec-ssr-on.flag'),
+            'configured' => $this->purgeService->isConfigured(),
+            'health' => $health,
+            'healthError' => $healthError,
+            'purgeLog' => $this->rows('tx_vitec_ssrpurgelog', 30),
+            'healthLog' => $this->rows('tx_vitec_ssrhealthlog', 10),
+        ]);
+        return $view->renderResponse('Ssr/Index');
+    }
+
+    public function purgeAction(ServerRequestInterface $request): ResponseInterface
+    {
+        $body = (array)$request->getParsedBody();
+        $mode = (string)($body['mode'] ?? 'paths');
+        $user = (string)($GLOBALS['BE_USER']->user['username'] ?? '?');
+
+        if ($mode === 'all') {
+            $paths = ['*'];
+        } else {
+            $paths = preg_split('/[\s,]+/', (string)($body['paths'] ?? ''), -1, PREG_SPLIT_NO_EMPTY) ?: [];
+        }
+
+        if ($paths === []) {
+            $this->flash('Keine Pfade angegeben.', 'Purge', false);
+        } else {
+            $result = $this->purgeService->purge($paths, 'module:' . $user);
+            $this->flash(
+                sprintf('HTTP %d — %s', $result['httpCode'], $result['message']),
+                $result['success'] ? 'Purge erfolgreich' : 'Purge fehlgeschlagen',
+                $result['success']
+            );
+        }
+        return new RedirectResponse((string)$this->uriBuilder->buildUriFromRoute('web_vitecssr'), 303);
+    }
+
+    private function rows(string $table, int $limit): array
+    {
+        try {
+            $qb = $this->connectionPool->getQueryBuilderForTable($table);
+            return $qb->select('*')->from($table)
+                ->orderBy('uid', 'DESC')->setMaxResults($limit)
+                ->executeQuery()->fetchAllAssociative();
+        } catch (\Throwable) {
+            return [];
+        }
+    }
+
+    private function flash(string $message, string $title, bool $ok): void
+    {
+        $flash = GeneralUtility::makeInstance(
+            FlashMessage::class,
+            $message,
+            $title,
+            $ok ? ContextualFeedbackSeverity::OK : ContextualFeedbackSeverity::ERROR,
+            true
+        );
+        $this->flashMessageService->getMessageQueueByIdentifier()->addMessage($flash);
+    }
+}
diff --git a/packages/vitec/Classes/Hooks/DataHandlerSsrPurge.php b/packages/vitec/Classes/Hooks/DataHandlerSsrPurge.php
new file mode 100644
index 0000000..49d5a9b
--- /dev/null
+++ b/packages/vitec/Classes/Hooks/DataHandlerSsrPurge.php
@@ -0,0 +1,176 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Evomedien\Vitec\Hooks;
+
+use TYPO3\CMS\Core\Core\Environment;
+use Evomedien\Vitec\Service\SsrPurgeService;
+use TYPO3\CMS\Core\DataHandling\DataHandler;
+use TYPO3\CMS\Core\Site\SiteFinder;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+
+/**
+ * Auto-purge: tells the SSR node which pages to drop from its full-page
+ * cache after editors change content (ticket 0054-FE section 3).
+ *
+ * Mapping rules (v1, deliberately conservative):
+ *  - pages: navigation-relevant field changed (title, nav_title, slug,
+ *    hidden, nav_hide, doktype) -> '*' (menus are embedded in EVERY page),
+ *    otherwise just that page's path.
+ *  - tt_content: the hosting page's path.
+ *  - tx_news_* and tx_vitec_*: '*' (news feed the megamenu spotlight,
+ *    domain models render on many pages).
+ *  - delete/move/undelete commands: pages -> '*', records -> hosting page.
+ *
+ * Changes are queued per request and flushed ONCE in afterAllOperations,
+ * so bulk operations (importer!) end up as a single purge call.
+ * Runs only while the SSR routing flag is ON and the Site Set switch
+ * vitec.ssr.autoPurge is enabled.
+ */
+final class DataHandlerSsrPurge
+{
+    private const NAV_FIELDS = ['title', 'nav_title', 'slug', 'hidden', 'nav_hide', 'doktype', 'fe_group', 'starttime', 'endtime'];
+
+    /** @var array<string,true> */
+    private static array $queue = [];
+
+    public function processDatamap_afterDatabaseOperations(
+        string $status,
+        string $table,
+        $id,
+        array $fieldArray,
+        DataHandler $dataHandler
+    ): void {
+        if (!$this->isActive()) {
+            return;
+        }
+        if ($table === 'pages') {
+            if (array_intersect(array_keys($fieldArray), self::NAV_FIELDS) !== []) {
+                self::$queue['*'] = true;
+                return;
+            }
+            $pageId = $this->realId($id, $dataHandler);
+            if ($pageId > 0) {
+                $this->queuePagePath($pageId);
+            }
+            return;
+        }
+        if ($table === 'tt_content') {
+            $recordId = $this->realId($id, $dataHandler);
+            $pid = $fieldArray['pid'] ?? null;
+            if (!is_numeric($pid) || (int)$pid <= 0) {
+                $pid = $this->pidOfRecord($table, $recordId);
+            }
+            if ((int)$pid > 0) {
+                $this->queuePagePath((int)$pid);
+            }
+            return;
+        }
+        if (str_starts_with($table, 'tx_news_') || str_starts_with($table, 'tx_vitec_')) {
+            self::$queue['*'] = true;
+        }
+    }
+
+    public function processDatamap_afterAllOperations(DataHandler $dataHandler): void
+    {
+        $this->flush('editor-save');
+    }
+
+    public function processCmdmap_postProcess(
+        string $command,
+        string $table,
+        $id,
+        $value,
+        DataHandler $dataHandler
+    ): void {
+        if (!$this->isActive()) {
+            return;
+        }
+        if ($table === 'pages') {
+            // Delete/move/copy of a page changes menus everywhere.
+            self::$queue['*'] = true;
+            return;
+        }
+        if ($table === 'tt_content') {
+            $pid = $this->pidOfRecord($table, (int)$id);
+            if ($pid > 0) {
+                $this->queuePagePath($pid);
+            }
+            return;
+        }
+        if (str_starts_with($table, 'tx_news_') || str_starts_with($table, 'tx_vitec_')) {
+            self::$queue['*'] = true;
+        }
+    }
+
+    public function processCmdmap_afterFinish(DataHandler $dataHandler): void
+    {
+        $this->flush('editor-command');
+    }
+
+    private function flush(string $trigger): void
+    {
+        if (self::$queue === []) {
+            return;
+        }
+        $paths = array_keys(self::$queue);
+        self::$queue = [];
+        GeneralUtility::makeInstance(SsrPurgeService::class)->purgeQuietly($paths, $trigger);
+    }
+
+    private function isActive(): bool
+    {
+        if (!file_exists(Environment::getVarPath() . '/vitec-ssr-on.flag')) {
+            return false;
+        }
+        try {
+            foreach (GeneralUtility::makeInstance(SiteFinder::class)->getAllSites() as $site) {
+                if ($site->getSettings()->get('vitec.ssr.autoPurge', true)) {
+                    return true;
+                }
+            }
+        } catch (\Throwable) {
+            return false;
+        }
+        return false;
+    }
+
+    private function queuePagePath(int $pageId): void
+    {
+        try {
+            $site = GeneralUtility::makeInstance(SiteFinder::class)->getSiteByPageId($pageId);
+            $uri = $site->getRouter()->generateUri($pageId);
+            $path = $uri->getPath() ?: '/';
+            self::$queue[$path] = true;
+        } catch (\Throwable) {
+            // Page outside a site (folders etc.) - nothing cached for it.
+        }
+    }
+
+    private function realId($id, DataHandler $dataHandler): int
+    {
+        if (is_numeric($id)) {
+            return (int)$id;
+        }
+        return (int)($dataHandler->substNEWwithIDs[$id] ?? 0);
+    }
+
+    private function pidOfRecord(string $table, int $uid): int
+    {
+        if ($uid <= 0) {
+            return 0;
+        }
+        try {
+            $qb = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable($table);
+            $qb->getRestrictions()->removeAll();
+            $pid = $qb->select('pid')->from($table)
+                ->where($qb->expr()->eq('uid', $qb->createNamedParameter($uid, \Doctrine\DBAL\ParameterType::INTEGER)))
+                ->executeQuery()->fetchOne();
+            return (int)$pid;
+        } catch (\Throwable) {
+            return 0;
+        }
+    }
+}
diff --git a/packages/vitec/Classes/Service/SsrFlagService.php b/packages/vitec/Classes/Service/SsrFlagService.php
index adbdfc3..00358bf 100644
--- a/packages/vitec/Classes/Service/SsrFlagService.php
+++ b/packages/vitec/Classes/Service/SsrFlagService.php
@@ -81,6 +81,10 @@ final class SsrFlagService
                 . "flip the switch in Site Management > Settings instead.\n"
                 . 'Last sync: ' . date('c') . "\n"
             );
+            // Fresh ON: whatever the node cached while the switch was OFF
+            // is stale by definition - drop its whole page cache once.
+            \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\Evomedien\Vitec\Service\SsrPurgeService::class)
+                ->purgeQuietly(['*'], 'switch-on');
         } else {
             @unlink($this->getFlagPath());
         }
diff --git a/packages/vitec/Classes/Service/SsrPurgeService.php b/packages/vitec/Classes/Service/SsrPurgeService.php
new file mode 100644
index 0000000..96edae7
--- /dev/null
+++ b/packages/vitec/Classes/Service/SsrPurgeService.php
@@ -0,0 +1,165 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Evomedien\Vitec\Service;
+
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Core\Environment;
+use TYPO3\CMS\Core\Http\RequestFactory;
+
+/**
+ * Talks to the SSR node's POST /__purge endpoint (contract 0054-FE) and
+ * keeps a log of every attempt in tx_vitec_ssrpurgelog.
+ *
+ * Endpoint + secret live OUTSIDE the repository in var/vitec-ssr-purge.env
+ * (KEY=VALUE lines: SSR_PURGE_ENDPOINT, SSR_PURGE_SECRET, SSR_HEALTH_ENDPOINT)
+ * - same pattern as the routing flag file, nothing secret in git.
+ */
+final class SsrPurgeService
+{
+    private ?array $config = null;
+
+    public function __construct(
+        private readonly RequestFactory $requestFactory,
+        private readonly ConnectionPool $connectionPool,
+    ) {}
+
+    public static function getConfigPath(): string
+    {
+        return Environment::getVarPath() . '/vitec-ssr-purge.env';
+    }
+
+    public function isConfigured(): bool
+    {
+        $c = $this->getConfig();
+        return ($c['SSR_PURGE_ENDPOINT'] ?? '') !== '' && ($c['SSR_PURGE_SECRET'] ?? '') !== '';
+    }
+
+    public function getHealthEndpoint(): string
+    {
+        return $this->getConfig()['SSR_HEALTH_ENDPOINT'] ?? '';
+    }
+
+    /**
+     * Normalizes, dedupes and sends the paths; logs the outcome.
+     * Never throws - editors' saves must not fail on a purge problem.
+     *
+     * @param string[] $paths page paths, or ['*'] for everything
+     * @return array{success:bool, httpCode:int, message:string, paths:string[]}
+     */
+    public function purge(array $paths, string $trigger): array
+    {
+        $paths = $this->normalize($paths);
+        if ($paths === []) {
+            return ['success' => true, 'httpCode' => 0, 'message' => 'nothing to purge', 'paths' => []];
+        }
+        if (!$this->isConfigured()) {
+            $result = ['success' => false, 'httpCode' => 0, 'message' => 'not configured (var/vitec-ssr-purge.env missing)', 'paths' => $paths];
+            $this->log($trigger, $result, 0);
+            return $result;
+        }
+
+        $c = $this->getConfig();
+        $start = microtime(true);
+        try {
+            $response = $this->requestFactory->request($c['SSR_PURGE_ENDPOINT'], 'POST', [
+                'headers' => [
+                    'X-Purge-Secret' => $c['SSR_PURGE_SECRET'],
+                    'Content-Type' => 'application/json',
+                ],
+                'body' => json_encode(['paths' => $paths], JSON_THROW_ON_ERROR),
+                'timeout' => 4,
+                'connect_timeout' => 2,
+                'http_errors' => false,
+            ]);
+            $code = $response->getStatusCode();
+            $body = substr((string)$response->getBody(), 0, 200);
+            $result = [
+                'success' => $code === 200,
+                'httpCode' => $code,
+                'message' => $body,
+                'paths' => $paths,
+            ];
+        } catch (\Throwable $e) {
+            $result = ['success' => false, 'httpCode' => 0, 'message' => substr($e->getMessage(), 0, 200), 'paths' => $paths];
+        }
+        $this->log($trigger, $result, (int)round((microtime(true) - $start) * 1000));
+        return $result;
+    }
+
+    public function purgeQuietly(array $paths, string $trigger): void
+    {
+        try {
+            $this->purge($paths, $trigger);
+        } catch (\Throwable) {
+            // Logged inside purge(); never disturb the caller.
+        }
+    }
+
+    /**
+     * Path rules from 0055-BE Q3 / 0054-FE section 3: path only, query
+     * stripped, no trailing slash (root stays '/'), '*' wins over all.
+     *
+     * @param string[] $paths
+     * @return string[]
+     */
+    public function normalize(array $paths): array
+    {
+        $out = [];
+        foreach ($paths as $p) {
+            $p = trim((string)$p);
+            if ($p === '') {
+                continue;
+            }
+            if ($p === '*') {
+                return ['*'];
+            }
+            $p = parse_url($p, PHP_URL_PATH) ?: '/';
+            if ($p !== '/' ) {
+                $p = '/' . trim($p, '/');
+            }
+            $out[$p] = true;
+        }
+        return array_keys($out);
+    }
+
+    private function getConfig(): array
+    {
+        if ($this->config !== null) {
+            return $this->config;
+        }
+        $this->config = [];
+        $file = self::getConfigPath();
+        if (is_readable($file)) {
+            foreach (file($file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) ?: [] as $line) {
+                if (str_starts_with(ltrim($line), '#') || !str_contains($line, '=')) {
+                    continue;
+                }
+                [$k, $v] = explode('=', $line, 2);
+                $this->config[trim($k)] = trim($v);
+            }
+        }
+        return $this->config;
+    }
+
+    private function log(string $trigger, array $result, int $durationMs): void
+    {
+        try {
+            $this->connectionPool->getConnectionForTable('tx_vitec_ssrpurgelog')->insert(
+                'tx_vitec_ssrpurgelog',
+                [
+                    'crdate' => time(),
+                    'trigger_source' => substr($trigger, 0, 100),
+                    'paths' => implode(', ', $result['paths']),
+                    'success' => $result['success'] ? 1 : 0,
+                    'http_code' => $result['httpCode'],
+                    'message' => substr($result['message'], 0, 255),
+                    'duration_ms' => $durationMs,
+                ]
+            );
+        } catch (\Throwable) {
+            // Table missing (before schema update) must not break anything.
+        }
+    }
+}
diff --git a/packages/vitec/Classes/Widgets/SsrStatsWidget.php b/packages/vitec/Classes/Widgets/SsrStatsWidget.php
new file mode 100644
index 0000000..3e54ba0
--- /dev/null
+++ b/packages/vitec/Classes/Widgets/SsrStatsWidget.php
@@ -0,0 +1,88 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Evomedien\Vitec\Widgets;
+
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Dashboard\Widgets\WidgetConfigurationInterface;
+use TYPO3\CMS\Dashboard\Widgets\WidgetInterface;
+
+/**
+ * Dashboard tile: purge and health statistics from the two protocol
+ * tables. History depth = what vitec:ssr-health sampling (scheduler)
+ * and the purge log hold (14 days).
+ */
+final class SsrStatsWidget implements WidgetInterface
+{
+    public function __construct(
+        private readonly WidgetConfigurationInterface $configuration,
+        private readonly ConnectionPool $connectionPool,
+    ) {}
+
+    public function renderWidgetContent(): string
+    {
+        $now = time();
+        $d1 = $now - 86400;
+        $d7 = $now - 7 * 86400;
+
+        $purges24h = $this->count('tx_vitec_ssrpurgelog', 'crdate > ' . $d1);
+        $purges7d = $this->count('tx_vitec_ssrpurgelog', 'crdate > ' . $d7);
+        $failed7d = $this->count('tx_vitec_ssrpurgelog', 'crdate > ' . $d7 . ' AND success = 0');
+        $full7d = $this->count('tx_vitec_ssrpurgelog', "crdate > " . $d7 . " AND paths = '*'");
+
+        $samples24h = $this->count('tx_vitec_ssrhealthlog', 'crdate > ' . $d1);
+        $ok24h = $this->count('tx_vitec_ssrhealthlog', 'crdate > ' . $d1 . ' AND ok = 1');
+        $uptime = $samples24h > 0 ? round($ok24h / $samples24h * 100, 1) . ' %' : '-';
+        $avgMs = $this->scalar('SELECT ROUND(AVG(response_ms)) FROM tx_vitec_ssrhealthlog WHERE crdate > ' . $d1 . ' AND ok = 1');
+        $maxCache = $this->scalar('SELECT MAX(cache_mb) FROM tx_vitec_ssrhealthlog WHERE crdate > ' . $d7);
+
+        $rows = [
+            ['Purges (24 h / 7 Tage)', $purges24h . ' / ' . $purges7d],
+            ['davon Komplett-Purges (7 T.)', (string)$full7d],
+            ['Fehlgeschlagene Purges (7 T.)', $failed7d > 0
+                ? '<span class="badge badge-danger">' . $failed7d . '</span>'
+                : '<span class="badge badge-success">0</span>'],
+            ['Verfügbarkeit (24 h)', htmlspecialchars($uptime)
+                . ' <small>(' . $ok24h . '/' . $samples24h . ' Messungen)</small>'],
+            ['&empty; Antwortzeit (24 h)', $avgMs !== null ? $avgMs . ' ms' : '-'],
+            ['Max. Cache-Größe (7 T.)', $maxCache !== null ? $maxCache . ' MB' : '-'],
+        ];
+
+        $html = '<table class="table table-striped table-sm"><tbody>';
+        foreach ($rows as [$label, $value]) {
+            $html .= '<tr><th style="width:55%">' . $label . '</th><td>' . $value . '</td></tr>';
+        }
+        $html .= '</tbody></table>';
+        if ($samples24h === 0) {
+            $html .= '<p class="text-muted" style="font-size:11px">Noch keine Messwerte: Scheduler-Task für <code>vitec:ssr-health</code> einrichten (z. B. alle 5 Minuten).</p>';
+        }
+        return $html;
+    }
+
+    public function getOptions(): array
+    {
+        return [];
+    }
+
+    private function count(string $table, string $where): int
+    {
+        try {
+            return (int)$this->connectionPool->getConnectionForTable($table)
+                ->executeQuery('SELECT COUNT(*) FROM ' . $table . ' WHERE ' . $where)->fetchOne();
+        } catch (\Throwable) {
+            return 0;
+        }
+    }
+
+    private function scalar(string $sql): ?string
+    {
+        try {
+            $v = $this->connectionPool->getConnectionForTable('tx_vitec_ssrhealthlog')
+                ->executeQuery($sql)->fetchOne();
+            return $v === null || $v === false ? null : (string)$v;
+        } catch (\Throwable) {
+            return null;
+        }
+    }
+}
diff --git a/packages/vitec/Classes/Widgets/SsrStatusWidget.php b/packages/vitec/Classes/Widgets/SsrStatusWidget.php
new file mode 100644
index 0000000..42da2e5
--- /dev/null
+++ b/packages/vitec/Classes/Widgets/SsrStatusWidget.php
@@ -0,0 +1,117 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Evomedien\Vitec\Widgets;
+
+use Evomedien\Vitec\Service\SsrPurgeService;
+use TYPO3\CMS\Core\Core\Environment;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Http\RequestFactory;
+use TYPO3\CMS\Dashboard\Widgets\WidgetConfigurationInterface;
+use TYPO3\CMS\Dashboard\Widgets\WidgetInterface;
+
+/**
+ * Dashboard tile: live state of the SSR node on the Solr VPS plus the
+ * delivery switch - green/red at a glance after backend login.
+ */
+final class SsrStatusWidget implements WidgetInterface
+{
+    public function __construct(
+        private readonly WidgetConfigurationInterface $configuration,
+        private readonly SsrPurgeService $purgeService,
+        private readonly RequestFactory $requestFactory,
+        private readonly ConnectionPool $connectionPool,
+    ) {}
+
+    public function renderWidgetContent(): string
+    {
+        $flagOn = file_exists(Environment::getVarPath() . '/vitec-ssr-on.flag');
+        $health = $this->fetchHealth();
+        $lastPurge = $this->lastPurgeRow();
+
+        $badge = static function (bool $ok, string $yes, string $no): string {
+            return $ok
+                ? '<span class="badge badge-success">' . htmlspecialchars($yes) . '</span>'
+                : '<span class="badge badge-danger">' . htmlspecialchars($no) . '</span>';
+        };
+
+        $rows = [];
+        $rows[] = ['SSR-Auslieferung', $badge($flagOn, 'AN - Seiten kommen vom VPS', 'AUS - SPA wie bisher')];
+        if ($health === null) {
+            $rows[] = ['SSR-Server', '<span class="badge badge-danger">NICHT ERREICHBAR</span>'];
+        } else {
+            $rows[] = ['SSR-Server', $badge((bool)($health['ok'] ?? false), 'läuft (' . (int)$health['responseMs'] . ' ms)', 'meldet Fehler')];
+            $rows[] = ['Release', htmlspecialchars((string)($health['release']['release'] ?? '?'))
+                . ' <small>(Commit ' . htmlspecialchars((string)($health['release']['commit'] ?? '?'))
+                . ', gebaut ' . htmlspecialchars($this->fmtDate((string)($health['release']['builtAt'] ?? ''))) . ')</small>'];
+            $rows[] = ['Seiten-Cache', (int)($health['cachedPages'] ?? 0) . ' Seiten / ' . (int)($health['cacheMB'] ?? 0) . ' MB'];
+        }
+        if ($lastPurge !== null) {
+            $rows[] = ['Letzter Purge', htmlspecialchars(date('d.m. H:i', (int)$lastPurge['crdate']))
+                . ' <small>(' . htmlspecialchars((string)$lastPurge['trigger_source']) . ', '
+                . ($lastPurge['success'] ? 'ok' : 'FEHLER') . ', '
+                . htmlspecialchars(mb_strimwidth((string)$lastPurge['paths'], 0, 60, '…')) . ')</small>'];
+        }
+        if (!$this->purgeService->isConfigured()) {
+            $rows[] = ['Auto-Purge', '<span class="badge badge-warning">nicht konfiguriert (var/vitec-ssr-purge.env fehlt)</span>'];
+        }
+
+        $html = '<table class="table table-striped table-sm"><tbody>';
+        foreach ($rows as [$label, $value]) {
+            $html .= '<tr><th style="width:38%">' . htmlspecialchars($label) . '</th><td>' . $value . '</td></tr>';
+        }
+        $html .= '</tbody></table>';
+        $html .= '<p class="text-muted" style="font-size:11px">Schalter: Site Management &rsaquo; Settings &rsaquo; VITEC. Modul "VITEC SSR" für Purge &amp; Protokoll.</p>';
+        return $html;
+    }
+
+    public function getOptions(): array
+    {
+        return [];
+    }
+
+    private function fetchHealth(): ?array
+    {
+        $endpoint = $this->purgeService->getHealthEndpoint();
+        if ($endpoint === '') {
+            return null;
+        }
+        $start = microtime(true);
+        try {
+            $response = $this->requestFactory->request($endpoint, 'GET', [
+                'timeout' => 3, 'connect_timeout' => 2, 'http_errors' => false,
+            ]);
+            if ($response->getStatusCode() !== 200) {
+                return null;
+            }
+            $data = json_decode((string)$response->getBody(), true);
+            if (!is_array($data)) {
+                return null;
+            }
+            $data['responseMs'] = (int)round((microtime(true) - $start) * 1000);
+            return $data;
+        } catch (\Throwable) {
+            return null;
+        }
+    }
+
+    private function lastPurgeRow(): ?array
+    {
+        try {
+            $qb = $this->connectionPool->getQueryBuilderForTable('tx_vitec_ssrpurgelog');
+            $row = $qb->select('*')->from('tx_vitec_ssrpurgelog')
+                ->orderBy('uid', 'DESC')->setMaxResults(1)
+                ->executeQuery()->fetchAssociative();
+            return $row ?: null;
+        } catch (\Throwable) {
+            return null;
+        }
+    }
+
+    private function fmtDate(string $iso): string
+    {
+        $ts = strtotime($iso);
+        return $ts ? date('d.m.Y H:i', $ts) : '?';
+    }
+}
diff --git a/packages/vitec/Configuration/Backend/Modules.php b/packages/vitec/Configuration/Backend/Modules.php
index 854efaa..debfeed 100644
--- a/packages/vitec/Configuration/Backend/Modules.php
+++ b/packages/vitec/Configuration/Backend/Modules.php
@@ -127,4 +127,26 @@ return [
             ],
         ],
     ],
+    'web_vitecssr' => [
+        'parent'         => 'web',
+        'position'       => ['after' => 'web_vitecimport'],
+        'access'         => 'user',
+        'workspaces'     => 'live',
+        'path'           => '/module/web/vitec-ssr',
+        'labels'         => [
+            'title' => 'VITEC SSR',
+            'shortDescription' => 'SSR delivery: VPS status, manual purge, purge/health protocol',
+        ],
+        'extensionName'  => 'Vitec',
+        'iconIdentifier' => 'actions-system-cache-clear-impact-medium',
+        'routes'         => [
+            '_default' => [
+                'target' => \Evomedien\Vitec\Controller\Backend\SsrController::class . '::indexAction',
+            ],
+            'purge' => [
+                'target' => \Evomedien\Vitec\Controller\Backend\SsrController::class . '::purgeAction',
+                'methods' => ['POST'],
+            ],
+        ],
+    ],
 ];
diff --git a/packages/vitec/Configuration/Services.yaml b/packages/vitec/Configuration/Services.yaml
index 4846f8b..2baa3a4 100644
--- a/packages/vitec/Configuration/Services.yaml
+++ b/packages/vitec/Configuration/Services.yaml
@@ -22,3 +22,32 @@ services:
   # the final page title (seo.title) into meta.title as well.
   FriendsOfTYPO3\Headless\Seo\MetaHandlerInterface:
     alias: Evomedien\Vitec\Seo\VitecMetaHandler
+
+  # The DataHandler hook fetches this via GeneralUtility::makeInstance,
+  # which resolves constructor arguments only for container-public services.
+  Evomedien\Vitec\Service\SsrPurgeService:
+    public: true
+
+  # SSR dashboard tiles (the WidgetConfigurationInterface argument is
+  # injected by the dashboard compiler pass via the tag).
+  Evomedien\Vitec\Widgets\SsrStatusWidget:
+    tags:
+      - name: dashboard.widget
+        identifier: vitecSsrStatus
+        groupNames: systemInformation
+        title: 'VITEC: SSR / VPS-Status'
+        description: 'Live-Zustand des SSR-Servers (Release, Cache, Erreichbarkeit) und der Auslieferungs-Schalter'
+        iconIdentifier: 'content-widget-text'
+        height: 'medium'
+        width: 'medium'
+
+  Evomedien\Vitec\Widgets\SsrStatsWidget:
+    tags:
+      - name: dashboard.widget
+        identifier: vitecSsrStats
+        groupNames: systemInformation
+        title: 'VITEC: SSR-Statistik'
+        description: 'Purge-Protokoll und Verfügbarkeit des SSR-Servers (14 Tage Historie)'
+        iconIdentifier: 'content-widget-number'
+        height: 'medium'
+        width: 'medium'
diff --git a/packages/vitec/Configuration/Sets/Vitecset/settings.definitions.yaml b/packages/vitec/Configuration/Sets/Vitecset/settings.definitions.yaml
index 469761f..d818f98 100644
--- a/packages/vitec/Configuration/Sets/Vitecset/settings.definitions.yaml
+++ b/packages/vitec/Configuration/Sets/Vitecset/settings.definitions.yaml
@@ -127,3 +127,10 @@ settings:
     category: VITEC
     type: bool
     default: false
+
+  vitec.ssr.autoPurge:
+    label: 'SSR auto-purge on editor changes'
+    description: 'ON: saving pages/content/news automatically evicts the affected pages from the SSR page cache (menu-relevant changes evict everything). OFF: the SSR cache refreshes only by its TTL (5 min) or manual purge. Only relevant while SSR delivery is ON.'
+    category: VITEC
+    type: bool
+    default: true
diff --git a/packages/vitec/Resources/Private/Templates/Ssr/Index.html b/packages/vitec/Resources/Private/Templates/Ssr/Index.html
new file mode 100644
index 0000000..a4e559d
--- /dev/null
+++ b/packages/vitec/Resources/Private/Templates/Ssr/Index.html
@@ -0,0 +1,108 @@
+<html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers" data-namespace-typo3-fluid="true">
+
+<h1>VITEC SSR — Steuerung &amp; Protokoll</h1>
+
+<div class="row">
+    <div class="col-md-6">
+        <h3>Status</h3>
+        <table class="table table-striped">
+            <tr>
+                <th>SSR-Auslieferung</th>
+                <td>
+                    <f:if condition="{flagOn}">
+                        <f:then><span class="badge badge-success">AN — Seiten kommen vom VPS</span></f:then>
+                        <f:else><span class="badge badge-secondary">AUS — SPA wie bisher</span></f:else>
+                    </f:if>
+                    <br><small>Umschalten: Site Management &rsaquo; Settings &rsaquo; VITEC</small>
+                </td>
+            </tr>
+            <tr>
+                <th>SSR-Server</th>
+                <td>
+                    <f:if condition="{health}">
+                        <f:then>
+                            <span class="badge badge-success">läuft</span> {health.responseMs} ms<br>
+                            Release <strong>{health.release.release}</strong>
+                            (Commit {health.release.commit})<br>
+                            Cache: {health.cachedPages} Seiten / {health.cacheMB} MB
+                        </f:then>
+                        <f:else>
+                            <span class="badge badge-danger">nicht erreichbar</span> {healthError}
+                        </f:else>
+                    </f:if>
+                </td>
+            </tr>
+            <tr>
+                <th>Purge-Konfiguration</th>
+                <td>
+                    <f:if condition="{configured}">
+                        <f:then><span class="badge badge-success">ok</span></f:then>
+                        <f:else><span class="badge badge-warning">var/vitec-ssr-purge.env fehlt</span></f:else>
+                    </f:if>
+                </td>
+            </tr>
+        </table>
+    </div>
+    <div class="col-md-6">
+        <h3>Cache leeren (Purge)</h3>
+        <form action="{f:be.uri(route: 'web_vitecssr.purge')}" method="post" class="form-group">
+            <label for="purge-paths">Pfade (einer je Zeile oder kommagetrennt):</label>
+            <textarea class="form-control" id="purge-paths" name="paths" rows="3"
+                placeholder="/products/aligo&#10;/insights/news"></textarea>
+            <input type="hidden" name="mode" value="paths">
+            <div style="margin-top:8px">
+                <button type="submit" class="btn btn-primary">Diese Pfade purgen</button>
+            </div>
+        </form>
+        <form action="{f:be.uri(route: 'web_vitecssr.purge')}" method="post"
+              onsubmit="return confirm('Wirklich den KOMPLETTEN SSR-Cache leeren?');">
+            <input type="hidden" name="mode" value="all">
+            <button type="submit" class="btn btn-warning">Alles purgen (*)</button>
+            <small class="text-muted"> — nötig nach Menü-/Footer-Änderungen bei abgeschaltetem Auto-Purge</small>
+        </form>
+    </div>
+</div>
+
+<h3>Purge-Protokoll <small>(letzte 30)</small></h3>
+<table class="table table-striped table-sm">
+    <thead><tr><th>Zeit</th><th>Auslöser</th><th>Pfade</th><th>Ergebnis</th><th>Dauer</th></tr></thead>
+    <tbody>
+    <f:for each="{purgeLog}" as="row">
+        <tr>
+            <td><f:format.date format="d.m.Y H:i:s">@{row.crdate}</f:format.date></td>
+            <td>{row.trigger_source}</td>
+            <td><code>{row.paths}</code></td>
+            <td>
+                <f:if condition="{row.success}">
+                    <f:then><span class="badge badge-success">ok</span></f:then>
+                    <f:else><span class="badge badge-danger">HTTP {row.http_code}</span> {row.message}</f:else>
+                </f:if>
+            </td>
+            <td>{row.duration_ms} ms</td>
+        </tr>
+    </f:for>
+    </tbody>
+</table>
+
+<h3>Gesundheits-Messungen <small>(letzte 10 — Historie via Scheduler-Task <code>vitec:ssr-health</code>)</small></h3>
+<table class="table table-striped table-sm">
+    <thead><tr><th>Zeit</th><th>Status</th><th>Release</th><th>Cache</th><th>Antwortzeit</th></tr></thead>
+    <tbody>
+    <f:for each="{healthLog}" as="row">
+        <tr>
+            <td><f:format.date format="d.m.Y H:i:s">@{row.crdate}</f:format.date></td>
+            <td>
+                <f:if condition="{row.ok}">
+                    <f:then><span class="badge badge-success">ok</span></f:then>
+                    <f:else><span class="badge badge-danger">down</span></f:else>
+                </f:if>
+            </td>
+            <td>{row.release_id}</td>
+            <td>{row.cached_pages} Seiten / {row.cache_mb} MB</td>
+            <td>{row.response_ms} ms</td>
+        </tr>
+    </f:for>
+    </tbody>
+</table>
+
+</html>
diff --git a/packages/vitec/ext_localconf.php b/packages/vitec/ext_localconf.php
index 97443c0..aa49d07 100755
--- a/packages/vitec/ext_localconf.php
+++ b/packages/vitec/ext_localconf.php
@@ -260,3 +260,11 @@ $GLOBALS['TYPO3_CONF_VARS']['FE']['cacheHash']['excludedParameters'][] = 'page';
 $GLOBALS['TYPO3_CONF_VARS']['FE']['cacheHash']['excludedParameters'][] = 'filter';
 $GLOBALS['TYPO3_CONF_VARS']['FE']['cacheHash']['excludedParameters'][] = 'market';
 $GLOBALS['TYPO3_CONF_VARS']['FE']['cacheHash']['excludedParameters'][] = 'category';
+
+// SSR auto-purge: editors' changes evict the matching pages from the SSR
+// node's full-page cache (queued per request, one call per save/import).
+// Active only while the SSR flag is ON and vitec.ssr.autoPurge is enabled.
+$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass']['vitec_ssrpurge']
+    = \Evomedien\Vitec\Hooks\DataHandlerSsrPurge::class;
+$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processCmdmapClass']['vitec_ssrpurge']
+    = \Evomedien\Vitec\Hooks\DataHandlerSsrPurge::class;
diff --git a/packages/vitec/ext_tables.sql b/packages/vitec/ext_tables.sql
index ec73a75..3c88a6a 100755
--- a/packages/vitec/ext_tables.sql
+++ b/packages/vitec/ext_tables.sql
@@ -460,3 +460,36 @@ CREATE TABLE tx_vitec_domain_model_searchcard (
 	link varchar(1024) DEFAULT '' NOT NULL,
 	link_label varchar(80) DEFAULT '' NOT NULL
 );
+
+#
+# SSR purge protocol (auto-purge webhook + backend module, 2026-11-09)
+#
+CREATE TABLE tx_vitec_ssrpurgelog (
+    uid int(11) NOT NULL auto_increment,
+    pid int(11) DEFAULT '0' NOT NULL,
+    crdate int(11) DEFAULT '0' NOT NULL,
+    trigger_source varchar(100) DEFAULT '' NOT NULL,
+    paths text,
+    success tinyint(1) DEFAULT '0' NOT NULL,
+    http_code int(11) DEFAULT '0' NOT NULL,
+    message varchar(255) DEFAULT '' NOT NULL,
+    duration_ms int(11) DEFAULT '0' NOT NULL,
+    PRIMARY KEY (uid),
+    KEY crdate (crdate)
+);
+
+#
+# SSR health history (vitec:ssr-health via scheduler, dashboard widgets)
+#
+CREATE TABLE tx_vitec_ssrhealthlog (
+    uid int(11) NOT NULL auto_increment,
+    pid int(11) DEFAULT '0' NOT NULL,
+    crdate int(11) DEFAULT '0' NOT NULL,
+    ok tinyint(1) DEFAULT '0' NOT NULL,
+    release_id varchar(100) DEFAULT '' NOT NULL,
+    cached_pages int(11) DEFAULT '0' NOT NULL,
+    cache_mb int(11) DEFAULT '0' NOT NULL,
+    response_ms int(11) DEFAULT '0' NOT NULL,
+    PRIMARY KEY (uid),
+    KEY crdate (crdate)
+);