SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
fen-lab.ca
SSL/TLS Certificate
SSL/TLS Certificate for fen-lab.ca
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- fen-lab.ca
- Valid from
- Aug 4, 2026
- Valid until
- Nov 2, 2026 (82 days remaining)
- Public key
- EC 256-bit
- Serial
- 05D75BA2BC23084D007D4FFD98D3E91F0F90
- SHA-256 fingerprint
- 61:A1:76:4C:DD:1B:EF:BB:F8:6F:3B:A2:B3:0C:56:0C:EE:81:12:49:42:61:7B:77:62:DD:B7:D0:C0:90:3D:BB
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
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 Aug 1, 2026.
Never get surprised by fen-lab.ca's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch fen-lab.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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.