What PixyScan checks

Each group can be switched off per site under Settings → Checks. Turning one off makes scans faster and stops those findings appearing at all.

• Page SEO basics — Titles, meta descriptions, canonicals, H1–H6 structure, duplicate elements, indexability.
• HTML head tags — charset, viewport, html lang, robots directives, author, site verification, referrer policy.
• Social & Open Graph — og: and twitter: tags, image dimensions, locale, article metadata.
• Structured data — JSON-LD parsed and validated per type — Organization, Product, FAQ, Article, Breadcrumb and more.
• Image analysis — Alt text, width and height attributes, modern formats, descriptive filenames.
• Semantic HTML — Whether key regions use real landmarks instead of bare divs, and figures carry captions.
• Content & readability — Flesch–Kincaid grade level, word count, placeholder text, author attribution.
• Link rel tags — Favicons, apple-touch-icon, RSS feeds, manifest, AMP links.
• Crawl behaviour — robots.txt, sitemaps, redirect chains and loops, broken internal links, orphan pages.
• HTTP security headers — HSTS, CSP, Referrer-Policy, X-Frame-Options, mixed content.
• International SEO — hreflang pairs, x-default, self-referencing tags, RTL direction, per-language URLs.
• URL parameters — Whether parameterised and faceted URLs are canonicalised, and canonicals stay clean.
• AEO content signals — Readability scored for answer engines rather than only for people.
• GEO / AI engine signals — llms.txt and llms-full.txt presence, and whether GPTBot, ClaudeBot, PerplexityBot, Google-Extended or CCBot are blocked in robots.txt.

Each individual check has its own page in this help centre with what it is, why it matters, how to fix it and examples. The same text appears in the product beside the finding, so you do not have to come here to act on it.

Use the sidebar, or the filter at the top of it, to find a specific one.