SiteSentry

Automated site health & SEO monitoring for agencies managing multiple client sites. Free for your first site.

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What it checks

• SSL certificate expiry — before visitors see a browser warning
• Uptime, HTTP status codes, redirect chains, and response times
• Security headers: HSTS, X-Frame-Options, and more
• Gzip/Brotli compression verification
• SEO: titles, meta descriptions, canonicals, Open Graph, structured data
• Sitemap & robots.txt parsing (real XML parsing, not guessing)
• Broken link detection across every crawled page

Part of the Declined Studios network.