SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ianchang.ca
SSL/TLS Certificate
SSL/TLS Certificate for ianchang.ca
Self-signed- Issued by (CA)
- TRAEFIK DEFAULT CERT
- Subject
- TRAEFIK DEFAULT CERT
- Valid from
- Nov 10, 2026
- Valid until
- Nov 10, 2027 (364 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0EA189CE6C6BCA7C7DC355112707D688
- SHA-256 fingerprint
- DC:09:93:07:05:9E:B6:A0:64:2A:1F:4F:79:95:FE:AA:23:89:C2:D5:9E:7C:8A:CA:51:82:FD:1C:51:9F:74:66
- Chain
- —
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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This is today's certificate. Turn on monitoring and we'll watch ianchang.ca continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, CNAME, TXT 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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