DNS & securityEnable HTTP/3 on Cloudflare: Verify QUIC Without Confusing Fallback
Cloudflare says HTTP/3 is on, but is the request really using it? Verify QUIC, interpret fallback and separate the visitor connection from the origin.
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DNS & security
DNS & securityDisable TLS 1.0 and 1.1: Verify the Edge and Origin Safely
An OpenSSL failure is not always proof that old TLS is disabled. Check the client, CDN edge and origin separately, then verify the application still works.
DNS & securitysecurity.txt Setup: Publish and Verify a Working Report Channel
Create security.txt with a real reporting contact and expiry. Check the correct host, plain-text response and file contents, then keep the channel current.