SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for ja-ki.fi
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ja-ki.fi
- Valid from
- Aug 17, 2026
- Valid until
- Nov 15, 2026 (72 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06678BB0A2614E1A9B225F37E6501F6EDE4B
- SHA-256 fingerprint
- 5B:9A:34:3A:49:67:6F:CD:61:28:84:3D:8C:1E:17:F5:3A:8C:44:FF:22:25:F0:0D:4C:BE:FE:C1:AC:C2:69:86
- Chain
- YR2 → Root YR → 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 26, 2026.
Never get surprised by ja-ki.fi's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ja-ki.fi 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.
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