SSL

SSL certificate check

Enter a domain and we’ll show whether it has a certificate, how much longer it’s valid, and who issued it.

See the example: kava.com.ua

Four states

HTTPS isn’t working
The site answers over http (port 80), but not over https.
Our free certificate, active
Renews itself. Nothing to do.
Certificate from another provider
The certificate works. We can watch its expiry for free.
Certificate problem
There’s a certificate, but something’s off: it’s expiring, the name doesn’t match, or it didn’t renew in time.

We show the expiry date and issuer for every state except “HTTPS isn’t working”.

Frequently asked

Does a paid certificate encrypt “better”?

No. Encryption on a DV certificate — free or paid — is identical. The real differences are elsewhere: vendor warranty, compatibility with old clients, and issuance where ACME isn’t available.

Why check ports 465, 587, 993?

Everyone remembers the site’s certificate (443); mail (465, 587, 993) and panels on non-standard ports get forgotten. The certificate expires there too.

What does “Install automatically” do?

It adds a technical record to your DNS, and your server (certbot, Caddy, Traefik) issues and keeps reissuing the certificate itself, with no action from you.