Offline on-page SEO audit of a local HTML file: title, meta description, canonical, robots meta, viewport, Open Graph, h1, image alt coverage, lang/charset. Zero network.
Offline AI-search readiness (GEO) audit of saved page HTML, robots.txt and llms.txt - checks whether ChatGPT, Perplexity, Claude and Google AI crawlers can reach, parse and cite the page. Zero network access, Node 18+.
Checks a site's robots.txt and XML sitemap offline the way Google reads them. Picks the crawler's group, resolves longest-match Allow and Disallow with wildcards, and tests the URLs that must be crawlable or blocked. Flags whole-site blocks, sitemap URLs that robots.txt blocks, blocked CSS and JS, unsupported noindex and crawl-delay lines, off-site, duplicate or invalid sitemap entries. Includes a stdlib Python checker with --self-test.
Checks a page's HTML source for the tags link previews are built from - title and description length, rel=canonical, og:title/description/type/url/site_name/locale, og:image size, aspect, alt and SVG, twitter:card and handles. Flags relative/http:// URLs, tracking parameters, theme + SEO plugin duplicates, tags in <body> and unrendered {{ }} placeholders, and returns a fixed <head> block. Includes an offline stdlib Python checker with --self-test.
Audit pasted HTTP response headers for missing security headers: HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, cookie flags. Offline, no fetching.
