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SSL Certificate Inspector
Fetch live TLS certificate details from a hostname. Verify issuer, validity dates, SAN entries, and the complete certificate chain in one view.
How to use this tool
- Enter a hostname without protocol and run inspection.
- Review certificate subject, issuer, validity window, and SAN entries.
- Check chain positions and status chips to identify trust or expiry issues.
Why teams use this
- Detect certificates nearing expiry before they trigger incidents.
- Confirm SAN coverage matches deployed hostnames and subdomains.
- Validate that presented chains are issued by expected certificate authorities.
Troubleshooting tips
- If lookup fails, confirm the host is reachable on port 443.
- Network egress rules or proxies can block direct TLS inspection.
- DNS misconfiguration can cause cert checks to target the wrong endpoint.
FAQ
- Does this store certificate data on the server?
- The tool performs live inspection for your request and returns certificate metadata for immediate analysis.
- Can I inspect non-443 ports?
- Not currently. The inspector targets standard HTTPS port 443.
- Does a valid chain guarantee browser trust?
- Not always. Clients may enforce additional trust-store, hostname, and policy constraints.
Resources
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