SSL certificate checker
Find out in seconds whether a site's HTTPS is healthy: valid certificate, issuer, days until expiry and TLS version. Problems like an expired or self-signed certificate show up instantly.
SSL certificate
Covered domains, exact dates, protocol and cipher
Unlock the full report
Leave your email or WhatsApp — the full breakdown opens right away, and a specialist can send you a short comment on the priorities.
HTTPS and SEO
Google has used HTTPS as a ranking signal since 2014, and Chrome labels sites without a certificate as “Not secure”. More important than the signal itself: an expired certificate instantly destroys visitor trust and stops sales.
Most common problems
- Automatic renewal (Let's Encrypt) that stopped working after a server change.
- A certificate issued only for
wwwor only for the domain withoutwww. - A self-signed certificate left over from a test environment.
Frequently asked questions
Is a free certificate worse than a paid one?
Not for SEO or for the browser padlock. The difference lies in the level of company validation and in commercial warranties.
The site uses Cloudflare. What am I seeing?
The certificate Cloudflare presents to visitors. Your origin server’s certificate sits “behind” it.
One check is a start. A full picture is better.
Run the free 60-second audit — 30 checks across on-page, technical and performance.