97.2% of EU websites have no standardised vulnerability reporting channel. RFC 9116, ENISA best practice, NIS2 requirement — and how to set it up.
Read articleDNS is the foundation of the internet — and for most European domains, it is completely unsecured. How to enable DNSSEC with your provider.
Read articleA built-in CSP Reporting-API endpoint that ingests, aggregates, and alerts on browser-reported policy violations. Included in every plan, EU-hosted, GDPR-friendly.
Read articleCSP mitigates XSS, injection, and data theft — a single line of config that 89% of EU websites lack. How to deploy it properly without breaking anything.
Read articleIPv6 readiness, HTTP/3 advertisement, SRI coverage, TLS 1.3 0-RTT, subdomain takeover, JARM C2 detection — a tour of nine checks we shipped in April 2026.
Read articleThe SiteGuardian MCP server brings monitoring data directly into Claude Desktop, Cursor, Claude Code, Windsurf, and VS Code. Five tools, anonymous scan without an account, EU-hosted.
Read article46.8% of EU websites have DMARC, but 63% set the policy to "none". Why that protects no one, and how to do it properly.
Read articleHTTP Strict Transport Security prevents downgrade attacks — and is missing on three out of four European websites. Here is how to enable it.
Read article94.8% of European websites score a D or F. Data from the SiteGuardian Benchmark covering 704,044 websites across 30 countries.
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