SEO & Web ToolsFree

SSL Certificate Checker

Check any domain's SSL certificate — expiry date, issuer, subject, SANs, and whether it's valid. Enter a domain and get the full certificate details.

🌐 API Integration Required

This tool needs a backend API to check external URLs. Options:

  • Use a serverless function (Next.js API route)
  • Integrate with RapidAPI URL checker APIs
  • Use PageSpeed Insights API (for speed checker)

Frequently Asked Questions

Does this check the actual certificate?▼
It calls a public API to fetch and display certificate details for any domain.
Does it alert on expiry?▼
It shows the expiry date and flags expired or soon-to-expire certificates.