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 sepas-co.ir

Valid
Issued by (CA)
Let's Encrypt
Subject
sepas-co.ir
Valid from
Oct 27, 2026
Valid until
Jan 25, 2027 (75 days remaining)
Public key
RSA 2048-bit
Serial
06D9CF738E3419A5BF538041A3BA905AEDC1
SHA-256 fingerprint
28:A9:33:60:25:8B:70:54:BB:D5:D4:A0:BC:A2:DB:AD:34:4A:48:2B:37:8B:F8:37:55:D9:C1:FD:75:86:D4:8E
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (3)
sepas-co.ir, webmail.sepas-co.ir, www.sepas-co.ir

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by sepas-co.ir's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch sepas-co.ir 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.