SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
patwarren.ca
SSL/TLS Certificate
SSL/TLS Certificate for patwarren.ca
Self-signed- Issued by (CA)
- srv41.swhc.ca
- Subject
- srv41.swhc.ca
- Valid from
- Jun 26, 2026
- Valid until
- Jun 26, 2027 (297 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 5A73CAC782130A7B92D8016E99CE7B0E34C41FB4
- SHA-256 fingerprint
- 6D:C6:D4:E7:10:9C:F5:4E:47:57:55:11:D6:4A:83:7E:1B:5B:44:91:4E:F4:22:A3:88:5A:2F:12:CC:B3:CC:E6
- Chain
- srv41.swhc.ca
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 2, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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