Check all your client sites at once
Paste up to 20 website addresses. For each one we load the page once, read its SSL certificate and look up when its domain expires. Free, no account.
What each line means
- Page: whether the page loaded when we asked, with its HTTP status and how long it took. We wait up to 10 seconds and follow up to 10 redirects.
- Certificate: when the SSL certificate the site served us expires. We flag it inside 21 days. Many certificates renew themselves, and some only a few days before they expire (Cloudflare's, for example), so a flagged date is a reason to check what renews it, not proof that anything is broken.
- Domain: the expiry date the domain's registry publishes over RDAP. We flag it inside 30 days. A domain set to auto-renew often shows its date until the day it renews, so check the registrar before you worry.
What we keep
We do not write down the list you paste or what we found. Domain expiry dates are kept in memory for a few hours, so the same domain is not looked up twice in a row, and are then forgotten. Each check is one page request (plus any redirects), and its User-Agent points the site's owner to a page that explains it. To keep this free tool from being used to flood other people's websites, each visitor can run it ten times an hour, and each website can be looked at ten times an hour, however many people ask.