# Seogard

> Continuous SEO regression monitoring & GEO (AI visibility) monitoring. Seogard diffs the raw HTML Google indexes against the JavaScript render, on every page, continuously — and alerts before rankings drop. Self-hosted free forever, or Cloud from $0.01 per monitored page per month (billed in EUR, EUR 0.01).

Seogard is a continuous SEO and GEO monitoring tool published by SAVEPNP (SAS, RCS Créteil 912 784 030, 25 rue Camille Blanc, 94400 Vitry-sur-Seine, France). It continuously watches every page of a site to detect regressions (metas, canonicals, SSR/CSR rendering, noindex, status codes, llms.txt, AI crawlers) and sends real-time email alerts — before Google indexes the problem.

Unique differentiator: the only monitoring tool that continuously compares the raw HTML (what Google indexes) with the JavaScript render (what users see) on every page, catching SSR/CSR regressions invisible to tools that do not render JavaScript.

**B2B service**: Seogard Cloud is exclusively for professionals (SEO agencies, tech teams, publishers, e-commerce).

## Who is Seogard for?

Web professionals who depend on SEO, whatever the site size. Self-hosted free for developers, managed Cloud for teams that want zero maintenance.

- SEO agencies and consultants
- E-commerce (product catalogs and pages)
- Media and publishers (articles, sections)
- SaaS marketing sites
- Enterprises

## The problem

A production deploy can silently break metas, SSR rendering or canonicals. Without monitoring, the regression is detected on average 3 weeks later, when traffic has already dropped. Real example: 200K clicks lost ($170K in SEO revenue) at an enterprise site.

## Features

- Dual SSR vs CSR analysis (raw HTML vs JavaScript render) — continuous comparison on every page
- 71 SEO and GEO detection rules (metas, SSR, canonicals, status codes, noindex, soft 404, llms.txt monitoring, AI crawler monitoring)
- Web performance monitored on every page: Core Web Vitals (LCP, CLS), server response time (TTFB) and page weight; alerts on page-weight regressions
- Multi-trigger crawling: on every deploy (CI/CD webhook), scheduled (daily to monthly, per zone) or on demand
- Multi-zone: segment the site by URL pattern (e.g. /blog, /products) — each zone has its own rules, crawl frequency, CI/CD strictness, notifications and access; the webhook can crawl a single targeted zone
- Instant email alerts as soon as a regression is detected
- Diff highlighting: see exactly what changed (before/after)
- Real-time dashboard
- Native CI/CD deployment gate: a webhook crawls on every deploy and returns a pass/fail verdict, with 3 strictness levels (strict/standard/relaxed) to block a regressive deploy — an SEO-native alternative to generic synthetic checks, no scripts to write

## Pricing

- **Self-hosted**: free forever — full source code, your infrastructure, your data
- **Cloud**: $0.01 per monitored page per month (billed in EUR, EUR 0.01) — managed infrastructure, zero maintenance, no commitment. You only pay for pages actually monitored; re-crawling the same pages costs nothing extra. 14-day free trial, no credit card.
- **On-premise**: custom quote — deployment in your infrastructure, guaranteed SLA, SSO/SAML, dedicated account manager

## What Seogard is NOT

- Not a keyword tool (Semrush, Ahrefs)
- Not a content tool
- Not a one-shot audit
- Not a competitor to classic SEO suites
- It is a new category: technical SEO regression monitoring

## Content in French (/fr/)

- Site (French): https://seogard.io/fr
- SEO & GEO technical training (French, free): https://seogard.io/fr/formations
- Monitoring tool page: https://seogard.io/fr/outils/monitoring
- Audit tool page: https://seogard.io/fr/outils/audit
- Free SEO scanner: https://seogard.io/fr/scanner
- SEO & GEO rules reference (each rule explained): https://seogard.io/fr/docs/rules
- Noindex ajouté: https://seogard.io/fr/docs/rules/noindex-ajoute
- Code HTTP modifié: https://seogard.io/fr/docs/rules/code-http-modifie
- Canonical manquant: https://seogard.io/fr/docs/rules/canonical-manquant
- Canonical modifié: https://seogard.io/fr/docs/rules/canonical-modifie
- Meta title supprimé: https://seogard.io/fr/docs/rules/meta-title-supprime
- Soft 404 détecté: https://seogard.io/fr/docs/rules/soft-404
- Redirection vers la homepage: https://seogard.io/fr/docs/rules/redirection-vers-la-homepage
- Page redirigée: https://seogard.io/fr/docs/rules/page-redirigee
- Redirection JavaScript: https://seogard.io/fr/docs/rules/redirection-javascript
- Redirection cassée: https://seogard.io/fr/docs/rules/redirection-cassee
- Redirection temporaire sur page retirée: https://seogard.io/fr/docs/rules/redirection-temporaire-302
- Suppression sans 410 ni 301: https://seogard.io/fr/docs/rules/suppression-sans-410-ni-301
- Page noindex déclarée au sitemap: https://seogard.io/fr/docs/rules/page-noindex-declaree-au-sitemap
- SSR cassé: https://seogard.io/fr/docs/rules/ssr-casse
- Écart SSR/CSR: https://seogard.io/fr/docs/rules/ecart-ssr-csr
- H1 supprimé: https://seogard.io/fr/docs/rules/h1-supprime
- H1 multiples: https://seogard.io/fr/docs/rules/h1-multiples
- H1 modifié: https://seogard.io/fr/docs/rules/h1-modifie
- Viewport supprimé: https://seogard.io/fr/docs/rules/viewport-supprime
- Contenu trop mince: https://seogard.io/fr/docs/rules/contenu-trop-mince
- Contenu supprimé: https://seogard.io/fr/docs/rules/contenu-supprime
- Hreflang supprimé: https://seogard.io/fr/docs/rules/hreflang-supprime
- Hreflang modifié: https://seogard.io/fr/docs/rules/hreflang-modifie
- Ressources HTTP sur page HTTPS: https://seogard.io/fr/docs/rules/ressources-http-sur-page-https
- Meta description supprimée: https://seogard.io/fr/docs/rules/meta-description-supprimee
- Données structurées supprimées: https://seogard.io/fr/docs/rules/donnees-structurees-supprimees
- JSON-LD invalide: https://seogard.io/fr/docs/rules/json-ld-invalide
- og:image supprimé: https://seogard.io/fr/docs/rules/og-image-supprime
- og:title supprimé: https://seogard.io/fr/docs/rules/og-title-supprime
- Meta refresh détecté: https://seogard.io/fr/docs/rules/meta-refresh-detecte
- Robots.txt modifié: https://seogard.io/fr/docs/rules/robots-txt-modifie
- Hiérarchie des titres cassée: https://seogard.io/fr/docs/rules/hierarchie-des-titres-cassee
- Attribut lang supprimé: https://seogard.io/fr/docs/rules/attribut-lang-supprime
- Attribut lang modifié: https://seogard.io/fr/docs/rules/attribut-lang-modifie
- Volume de contenu modifié: https://seogard.io/fr/docs/rules/volume-de-contenu-modifie
- Charset supprimé: https://seogard.io/fr/docs/rules/charset-supprime
- Title SSR ≠ CSR: https://seogard.io/fr/docs/rules/title-different-ssr-csr
- Description SSR ≠ CSR: https://seogard.io/fr/docs/rules/description-differente-ssr-csr
- Meta title modifié: https://seogard.io/fr/docs/rules/meta-title-modifie
- Meta description modifiée: https://seogard.io/fr/docs/rules/meta-description-modifiee
- Crawler bloqué (anti-bot): https://seogard.io/fr/docs/rules/crawler-bloque-anti-bot
- /llms.txt supprimé: https://seogard.io/fr/docs/rules/llms-txt-supprime
- Nouveau blocage de crawlers IA de citation: https://seogard.io/fr/docs/rules/nouveau-blocage-crawlers-ia
- robots.txt bloque Googlebot: https://seogard.io/fr/docs/rules/robots-txt-bloque-googlebot
- FAQ schema supprimé: https://seogard.io/fr/docs/rules/faq-schema-supprime
- Auteur supprimé (JSON-LD): https://seogard.io/fr/docs/rules/auteur-json-ld-supprime
- Images sans alt: https://seogard.io/fr/docs/rules/images-sans-alt
- Longueur du title: https://seogard.io/fr/docs/rules/longueur-du-title
- Longueur de la description: https://seogard.io/fr/docs/rules/longueur-de-la-description
- H1 manquant: https://seogard.io/fr/docs/rules/h1-manquant
- H1 absent du HTML brut (rempli par JavaScript): https://seogard.io/fr/docs/rules/h1-absent-du-html-brut
- Contenu visible seulement après JavaScript: https://seogard.io/fr/docs/rules/contenu-absent-du-html-brut
- Title absent du HTML brut (rempli par JavaScript): https://seogard.io/fr/docs/rules/title-absent-du-html-brut
- Meta description absente du HTML brut (remplie par JavaScript): https://seogard.io/fr/docs/rules/description-absente-du-html-brut
- Liens internes absents du HTML brut (injectés par JavaScript): https://seogard.io/fr/docs/rules/liens-internes-absents-du-html-brut
- JSON-LD absent du HTML brut (injecté par JavaScript): https://seogard.io/fr/docs/rules/json-ld-absent-du-html-brut
- Images sans alt absentes du HTML brut (injectées par JavaScript): https://seogard.io/fr/docs/rules/alt-images-absent-du-html-brut
- Balises sémantiques absentes du HTML brut: https://seogard.io/fr/docs/rules/balises-semantiques-absentes-du-html-brut
- Favicon manquant: https://seogard.io/fr/docs/rules/favicon-manquant
- Structure sémantique: https://seogard.io/fr/docs/rules/structure-semantique
- Données structurées manquantes: https://seogard.io/fr/docs/rules/donnees-structurees-manquantes
- Open Graph manquant: https://seogard.io/fr/docs/rules/open-graph-manquant
- Liens internes insuffisants: https://seogard.io/fr/docs/rules/liens-internes-insuffisants
- /llms.txt manquant: https://seogard.io/fr/docs/rules/llms-txt-manquant
- Crawlers IA de citation bloqués (robots.txt): https://seogard.io/fr/docs/rules/crawlers-ia-bloques-robots-txt
- Données structurées incomplètes: https://seogard.io/fr/docs/rules/donnees-structurees-incompletes
- FAQ schema manquant: https://seogard.io/fr/docs/rules/faq-schema-manquant
- Signaux de citation faibles: https://seogard.io/fr/docs/rules/signaux-de-citation-faibles
- Structure de contenu (GEO): https://seogard.io/fr/docs/rules/structure-de-contenu-geo
- Poids de page en hausse: https://seogard.io/fr/docs/rules/poids-de-page-en-hausse
- Page trop lourde: https://seogard.io/fr/docs/rules/page-trop-lourde

## Content in English (/en/)

- Site (English): https://seogard.io/en
- Continuous SEO monitoring: https://seogard.io/en/tools/monitoring
- Technical SEO audit tool: https://seogard.io/en/tools/audit
- Free SSR checker: https://seogard.io/en/scanner
- SEO & GEO rules reference (each rule explained): https://seogard.io/en/docs/rules
- Noindex added: https://seogard.io/en/docs/rules/noindex-added
- HTTP status code changed: https://seogard.io/en/docs/rules/http-status-code-changed
- Canonical missing: https://seogard.io/en/docs/rules/missing-canonical-tag
- Canonical changed: https://seogard.io/en/docs/rules/canonical-tag-changed
- Meta title removed: https://seogard.io/en/docs/rules/missing-meta-title
- Soft 404 detected: https://seogard.io/en/docs/rules/soft-404
- Redirect to homepage: https://seogard.io/en/docs/rules/redirect-to-homepage
- Page redirected: https://seogard.io/en/docs/rules/page-redirected
- JavaScript redirect: https://seogard.io/en/docs/rules/javascript-redirect
- Broken redirect: https://seogard.io/en/docs/rules/broken-redirect
- Temporary redirect on removed page: https://seogard.io/en/docs/rules/temporary-302-redirect
- Removal without 410 or 301: https://seogard.io/en/docs/rules/page-removed-without-410-or-301
- Noindex page declared in sitemap: https://seogard.io/en/docs/rules/noindex-page-in-sitemap
- Broken SSR: https://seogard.io/en/docs/rules/broken-ssr
- SSR/CSR gap: https://seogard.io/en/docs/rules/ssr-csr-content-mismatch
- H1 removed: https://seogard.io/en/docs/rules/h1-removed
- Multiple H1 tags: https://seogard.io/en/docs/rules/multiple-h1-tags
- H1 changed: https://seogard.io/en/docs/rules/h1-changed
- Viewport removed: https://seogard.io/en/docs/rules/viewport-meta-removed
- Thin content: https://seogard.io/en/docs/rules/thin-content
- Content removed: https://seogard.io/en/docs/rules/content-removed
- Hreflang removed: https://seogard.io/en/docs/rules/hreflang-removed
- Hreflang changed: https://seogard.io/en/docs/rules/hreflang-changed
- HTTP resources on HTTPS page: https://seogard.io/en/docs/rules/mixed-content-https
- Meta description removed: https://seogard.io/en/docs/rules/missing-meta-description
- Structured data removed: https://seogard.io/en/docs/rules/structured-data-removed
- Invalid JSON-LD: https://seogard.io/en/docs/rules/invalid-json-ld
- OG image removed: https://seogard.io/en/docs/rules/og-image-removed
- OG title removed: https://seogard.io/en/docs/rules/og-title-removed
- Meta refresh detected: https://seogard.io/en/docs/rules/meta-refresh-redirect
- robots.txt changed: https://seogard.io/en/docs/rules/robots-txt-changed
- Broken heading hierarchy: https://seogard.io/en/docs/rules/broken-heading-hierarchy
- Lang attribute removed: https://seogard.io/en/docs/rules/lang-attribute-removed
- Lang attribute changed: https://seogard.io/en/docs/rules/lang-attribute-changed
- Content length changed: https://seogard.io/en/docs/rules/content-length-changed
- Charset removed: https://seogard.io/en/docs/rules/charset-removed
- SSR/CSR title mismatch: https://seogard.io/en/docs/rules/ssr-csr-title-mismatch
- SSR/CSR description mismatch: https://seogard.io/en/docs/rules/ssr-csr-description-mismatch
- Meta title changed: https://seogard.io/en/docs/rules/meta-title-changed
- Meta description changed: https://seogard.io/en/docs/rules/meta-description-changed
- Crawler blocked (anti-bot): https://seogard.io/en/docs/rules/crawler-blocked-by-waf
- llms.txt removed: https://seogard.io/en/docs/rules/llms-txt-removed
- New AI citation crawler blocking: https://seogard.io/en/docs/rules/new-ai-crawler-blocking
- robots.txt blocks Googlebot: https://seogard.io/en/docs/rules/robots-txt-blocks-googlebot
- FAQ schema removed: https://seogard.io/en/docs/rules/faq-schema-removed
- Author removed (JSON-LD): https://seogard.io/en/docs/rules/author-removed-from-json-ld
- Images without alt: https://seogard.io/en/docs/rules/images-missing-alt-text
- Title length: https://seogard.io/en/docs/rules/title-length
- Description length: https://seogard.io/en/docs/rules/meta-description-length
- Missing H1: https://seogard.io/en/docs/rules/missing-h1
- H1 missing from raw HTML (JS-only): https://seogard.io/en/docs/rules/h1-missing-from-raw-html
- Content visible only after JavaScript: https://seogard.io/en/docs/rules/content-missing-from-raw-html
- Title missing from raw HTML (JS-only): https://seogard.io/en/docs/rules/title-missing-from-raw-html
- Description missing from raw HTML (JS-only): https://seogard.io/en/docs/rules/description-missing-from-raw-html
- Internal links missing from raw HTML (JS-only): https://seogard.io/en/docs/rules/internal-links-missing-from-raw-html
- JSON-LD missing from raw HTML (JS-only): https://seogard.io/en/docs/rules/json-ld-missing-from-raw-html
- JS-injected images without alt: https://seogard.io/en/docs/rules/image-alt-missing-from-raw-html
- Semantic tags missing from raw HTML: https://seogard.io/en/docs/rules/semantic-tags-missing-from-raw-html
- Missing favicon: https://seogard.io/en/docs/rules/missing-favicon
- Semantic structure: https://seogard.io/en/docs/rules/semantic-html-structure
- Missing structured data: https://seogard.io/en/docs/rules/missing-structured-data
- Missing Open Graph: https://seogard.io/en/docs/rules/missing-open-graph-tags
- Too few internal links: https://seogard.io/en/docs/rules/too-few-internal-links
- Missing llms.txt: https://seogard.io/en/docs/rules/missing-llms-txt
- AI citation crawlers blocked (robots.txt): https://seogard.io/en/docs/rules/ai-crawlers-blocked-robots-txt
- Incomplete structured data: https://seogard.io/en/docs/rules/incomplete-structured-data
- Missing FAQ schema: https://seogard.io/en/docs/rules/missing-faq-schema
- Weak citation signals: https://seogard.io/en/docs/rules/weak-citation-signals
- Content structure (GEO): https://seogard.io/en/docs/rules/geo-content-structure
- Page weight increase: https://seogard.io/en/docs/rules/page-weight-increase
- Heavy page: https://seogard.io/en/docs/rules/heavy-page

## Links

- GitHub (source available, BSL 1.1): https://github.com/seogard-software/seogard
- Full documentation for LLMs: https://seogard.io/llms-full.txt