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 s-pet.ru

Valid
Issued by (CA)
Let's Encrypt
Subject
shepherd.ru
Valid from
Aug 19, 2026
Valid until
Nov 17, 2026 (51 days remaining)
Public key
RSA 2048-bit
Serial
0661B8DF15213B422FF59EE06A774E9CE0D7
SHA-256 fingerprint
41:01:D2:4C:92:1C:46:1F:3E:F6:64:63:72:FE:1B:7D:83:11:9F:54:30:4A:B6:77:51:83:C3:42:34:59:AE:A5
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (5)
s-pet.ru, shepherd-pet.ru, shepherd.ru, www.s-pet.ru, www.shepherd-pet.ru

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 Sep 24, 2026.

Never get surprised by s-pet.ru's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch s-pet.ru 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.

Monitor this certificate free

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