SSL certificate checker: expiry, chain and HTTPS
Check when your SSL certificate expires, who issued it, which names it covers, and whether the full chain, HTTPS redirect and modern TLS are set up. Fix “Not secure” and certificate errors with simple steps.
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How to use this tool
- Enter your domain Type example.in or www.example.in.
- Click Check We connect over HTTPS and read the certificate.
- See the expiry The countdown shows how many days are left.
- Review the checks Names, chain, redirect, HSTS and old TLS are shown in one table.
- Fix errors Follow the fix for any warning, then check again.
Never let it expire
- Turn on auto-renew in your hosting panel.
- Check again a week before expiry.
- Free certificates are short-lived; auto-renew is a must.
Cover every name
- Include both example.in and www.example.in.
- Subdomains like shop.example.in need their own entry or a wildcard.
- Redirect http:// to https:// with a 301.
Modern setup
- Turn off TLS 1.0 and 1.1.
- Send the full certificate chain.
- Add HSTS after everything works on HTTPS.
Questions about this tool
Why does my site say “Not secure”?
There is no valid certificate, it expired, or the page loads http:// images or scripts (mixed content).
Do I need a paid certificate?
No. Free certificates (Let’s Encrypt, Cloudflare) are trusted by all browsers. Paid ones add company checks, not stronger encryption.
Why does it fail only on some phones?
Usually the chain is incomplete. Install the full chain file.
Why does it show an example?
Connecting to other websites needs our server, which goes live after launch.
Can I get an expiry reminder?
Expiry reminders are planned for the live version.