SSL and uptime, in plain English
Two basics decide whether visitors trust your site and can even reach it: a valid SSL certificate (the padlock) and the server actually being online. This tool checks both for any domain — reading the live certificate and making a real request — so you can spot problems before your customers do.
What the SSL check tells you
It reads the certificate the site presents and reports who issued it, when it expires, whether it's trusted by browsers, and whether it actually covers the domain you typed. The single most common failure is an expired certificate — browsers then throw a full-page scary warning that sends visitors running. Certificates that auto-renew (like ours) avoid this entirely.
What the uptime check tells you
It makes a live request and reports the HTTP status and how long the server took to respond. A quick response is good for both visitors and search ranking; a timeout or a 5xx error means something's wrong right now. It also flags whether plain http:// is redirected to secure https:// — which it always should be.
For people running a real site
Plain notes on getting online properly, once a week
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Common questions
My certificate expires soon — what do I do?
Renew it before the date shown. If you got it manually, you'll need to reissue and reinstall it. The lasting fix is hosting that issues and auto-renews SSL for free, so it can never lapse — that's how Centaur does it.
It says “not trusted” but the site loads for me?
That usually means a self-signed certificate or a missing intermediate in the chain. Some browsers are lenient or you may have visited past a warning. Other visitors — and search engines — may still be blocked, so it's worth fixing.
Can I check a site that isn't mine?
Yes — SSL certificates and HTTP responses are public, so you can check any public website. For safety the tool only probes public addresses on the standard web ports.