SSL certificate checker

Days until the certificate expires, who issued it and whether everything around it is set: redirect, HSTS, images and scripts without https.

What “the certificate is fine” means

The certificate is valid, issued for this domain and expires no sooner than in two weeks. The site opens only over https: http redirects to https, HSTS is on and every image and script also loads over https. Otherwise the browser says “Not secure” or hides part of the page.

Frequently asked questions

What happens when the certificate expires?

Browsers show a full-screen warning and most visitors leave. Forms and payments stop working.

Is Let’s Encrypt worse than a paid certificate?

No. Encryption is the same. The difference is the 90-day term and the need for automatic renewal.

How do I not miss the expiry?

Put the site on watch in Awe Check: an email arrives 14 days before the end.

More quick checks

What to check next

  • Full website check

    Law, SEO, speed and AI search, fines and ready fixes.

    Check a site
  • Scam and trust check

    A trust score from 0 to 100: protection, domain, documents and contacts.

    Check trust
  • Watching and Pro

    Telegram alerts when the score drops or a certificate is about to expire.

    Learn about Pro