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Tool 01 · Check a server

See the chain your server sends.

We open one TLS connection to port 443 using the name you type, record every certificate the server sends, and check each link by signature. Nothing else on the server is touched.

A name, like shop.example.com. A full address works too; only port 443 is checked.

0 / 60 server checks used today. Bench Pass limits apply during the preview (free).

What we contact

Only the public IPv4 address the name points to, on port 443. Private, internal and reserved addresses are refused, and so are WeldonPC's own servers.

What we fetch

If an intermediate is missing, the issuer's own "CA Issuers" address written inside the certificate, at most twice per check.

What we keep

The public certificates and the result, for 24 hours (longer only if you save it to your Bench). No cookies except a form-security cookie, unless you start a Bench.