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🛡 Website security check

Grade a site A+ to F on HSTS, CSP, clickjacking, cookie flags, TLS versions and leaked server versions, with a fix for each finding.

A+
Security grade A+
95/100 · 1 finding · server: github.com
https://github.com/ · checked 2026-09-20 01:56 UTC from Vigil's servers
1 low

Security headers

strict-transport-security present
content-security-policy present
x-content-type-options present
x-frame-options present
referrer-policy present
permissions-policy
Permissions-Policy missing
missing

TLS protocol support

TLS 1.0 · disabledTLS 1.1 · disabledTLS 1.2 · enabledTLS 1.3 · enabled

TLS 1.0 and 1.1 should be off; TLS 1.2 and 1.3 on.

Findings and how to fix them (1)

Permissions-Policy missing low
Restrict camera, microphone, geolocation etc. with a Permissions-Policy header.
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