Multi-Region SSL Checker

Validate SSL certificates from multiple global locations. Perfect for CDN and multi-region deployments.

About SSL Certificate Checker

Comprehensive SSL/TLS certificate analyzer that validates certificate chains, checks expiration dates, and verifies hostname matching from multiple global locations.

Key Features

Multi-region SSL validation

Certificate chain verification

Expiration monitoring

TLS version detection

Hostname validation

Also Available via API & MCP Server

Automate ssl certificate checker checks in your CI/CD pipelines or run them directly from your AI coding agent.

REST API

Single endpoint, JSON response. Integrate into any language or platform.

cURL

curl -X POST https://probeops.com/api/v1/run \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"tool": "ssl_check", "target": "example.com"}'

Learn more about the API

MCP Server

Works with Claude Code, Cursor, Windsurf, and any MCP-compatible IDE.

Claude Code

> Check the ssl certificate checker for example.com

Claude uses the probeops_ssl_check tool to run
the check from 6 global regions and returns
structured results.

Learn more about the MCP Server

CDNs and globally distributed infrastructure can serve different SSL certificates from different edge locations. A certificate might be valid in US data centers but expired or misconfigured at European edges. Single-location SSL checks miss these critical inconsistencies.

Our multi-region checker validates SSL certificates from 6+ global locations simultaneously, catching regional deployment issues before they affect users. Essential for CDN configurations, multi-cloud deployments, and any infrastructure serving global audiences.

**Methodology:** Parallel TLS handshakes from 6 global regions comparing certificate fingerprints, expiry, and chain consistency.

Common SSL Errors & How to Fix Them

4 relevant issues

SSL works from some locations but fails from others. Common with CDNs and multi-origin setups.

How to Fix

Check all CDN edge locations have the same certificate deployed. Verify origin server certificate matches CDN. Purge CDN cache after certificate updates. Check if geo-routing serves different origins.

cdn certificateregional ssledge locationdifferent certificate

Browser shows "Your connection is not private" or NET::ERR_CERT_DATE_INVALID.

How to Fix

Renew your certificate immediately through your CA (Let's Encrypt, DigiCert, etc.). After renewal, deploy the new certificate to all servers and CDN edges. Clear CDN cache if using Cloudflare or similar.

certificate expiredcert date invalidconnection not private

Works in some browsers but fails in others. Mobile devices often affected first.

How to Fix

Include the intermediate certificate bundle when configuring SSL. Download the full chain from your CA and concatenate: your cert + intermediate(s). Test with openssl s_client -connect domain:443 -servername domain.

intermediate certificatecertificate chainunable to verify

Certificate is valid but issued for a different domain. Shows NET::ERR_CERT_COMMON_NAME_INVALID.

How to Fix

Ensure your certificate includes all domains (www and non-www). Use a SAN certificate or wildcard (*.domain.com). Reissue if domains were missed during certificate request.

hostname mismatchcommon name invalidsan certificate

See all SSL errors →

Frequently Asked Questions

4 relevant questions

CDNs and load balancers often serve different SSL certificates at different edge locations. A certificate might be properly deployed in US data centers but expired or misconfigured in European nodes. Regional mismatches can also occur during certificate renewals if not all edges are updated simultaneously. Multi-region testing catches these inconsistencies before they affect users.

CDNs typically terminate SSL at their edge and may use their own certificates (like Cloudflare's Universal SSL) or your uploaded certificate. If certificates don't match, check: 1) CDN SSL settings for custom certificate upload, 2) Origin pull settings if using Full (Strict) mode, 3) Whether CDN cache needs purging after certificate updates. Multi-region checks help identify edge-specific certificate issues.

Unlike DNS, SSL certificates take effect immediately on your origin server. However, CDN edges may cache the old certificate. Cloudflare: purge cache or wait 24 hours. AWS CloudFront: 15-60 minutes for distribution. Fastly: near-instant with purge. Always use multi-region testing after certificate updates to verify all edges are serving the new certificate.

Our health score (0-100) weighs: certificate validity across all tested regions (60%), days until expiry (20% - higher scores for >60 days), TLS version (10% - TLS 1.3 scores highest), and cipher strength (10% - 256-bit encryption preferred). A score of 80+ indicates excellent certificate health. Below 50 requires immediate attention.

See all SSL FAQs →

How to Check SSL Certificate ExpiryStep-by-step guide with examples and troubleshooting tips