TLS & certificates

Certificate key at least 2048-bit

Certificate validity and trust, key strength and protocol versions.

Why it matters

A short key can be broken by a well-funded attacker, who could then impersonate the site.

How to fix it

Quick fix · under 1 hour

Generate a new RSA 2048+ or ECDSA P-256 key.
Reissue and deploy the certificate.

certbot

sudo certbot renew --force-renewal --key-type ecdsa

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How we test it

The check runs from the public internet as part of every scan, read-only and without touching your data. If it fails, your report shows the evidence that proves it - the record, header, file or banner we observed - together with the fix above, tailored to the issue we found.

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