SSL Certificate Checker (HTTPS / TLS)

Validate SSL/TLS certificates for any website.

This Actor checks:

• Certificate expiration date and days remaining
• Hostname match (SNI + SAN/CN validation)
• TLS authorization status (whether Node trusts the chain)
• Certificate issuer/subject details and fingerprint

Useful for SEO audits (HTTPS health), security monitoring, and uptime/renewal alerts.

Input

• startUrls (required): Websites to check (URLs are used to extract host + optional port)
• timeoutSecs (default: 15): TLS handshake timeout per host
• warningThresholdDays (default: 30): Flag certs expiring soon
• includeIssuerChain (default: false): Include the issuer chain details (larger output)

Output

Dataset

One item per unique hostname:port with fields like:

• ok, authorized, authorizationError
• validForHostname, hostnameError
• notAfter, daysUntilExpiry, isExpired, expiresSoon
• issuerCn, subjectCn, fingerprint256

Key-Value store

• REPORT: full JSON array of all results
• SUMMARY: totals (checked, ok, failed, expired, expiringSoon)

Notes

• This Actor uses a direct TLS connection (no HTTP crawling).
• authorized=false does not necessarily mean the site is unusable; it often indicates missing intermediates or a non-standard chain.

Quick start

Store page: https://apify.com/scrappy_garden/ssl-certificate-checker

Paste this into Input and click Run:

{
  "startUrls": [
    {
      "url": "https://example.com/"
    }
  ]
}

Outputs (what you get)

• Dataset: Dataset items typically include fields like: hostname, port, ok, authorized, validForHostname, daysUntilExpiry, expiresSoon, isExpired, issuerCn, subjectCn.
• Key-value store: REPORT, SUMMARY

Tips (trust + predictable results)

• Start with 1–3 URLs to validate behavior, then scale up.
• If a target blocks requests, enable Proxy and/or slow down concurrency in Input.
• Use the SUMMARY / REPORT keys (when present) for automation pipelines and monitoring.

Related actors

• broken-link-checker (https://apify.com/scrappy_garden/broken-link-checker)
• canonical-url-checker (https://apify.com/scrappy_garden/canonical-url-checker)
• meta-tag-analyzer (https://apify.com/scrappy_garden/meta-tag-analyzer)
• security-headers-checker (https://apify.com/scrappy_garden/security-headers-checker)

Search keywords

ssl certificate checker, ssl certificate checker - validate https certs, expiration & hostname, website audit, seo