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 sprig.si

Valid
Issued by (CA)
Let's Encrypt
Subject
sprig.si
Valid from
Sep 29, 2026
Valid until
Dec 28, 2026 (75 days remaining)
Public key
RSA 2048-bit
Serial
050B97E35B70B340520C7836EB30DA3FF0CD
SHA-256 fingerprint
C6:40:FF:D2:EC:48:12:34:01:EC:3D:64:40:55:69:60:64:C0:35:C4:60:97:ED:3E:D9:2A:B0:23:6C:97:4C:FF
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
sprig.si, www.sprig.si

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 sprig.si 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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