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 leki-75.fi

Valid
Issued by (CA)
Let's Encrypt
Subject
leki-75.fi
Valid from
Oct 20, 2026
Valid until
Jan 18, 2027 (73 days remaining)
Public key
EC 256-bit
Serial
05D1613A9BF119448C440231BE887C132C5B
SHA-256 fingerprint
2B:15:06:12:F7:EF:3D:50:B8:7D:52:C5:ED:1E:79:BA:EF:91:35:52:8A:D3:37:08:05:BB:2A:FF:B4:28:57:03
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
leki-75.fi

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 Nov 3, 2026.

Never get surprised by leki-75.fi's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch leki-75.fi continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.