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 5-55.ru

Valid
Issued by (CA)
GlobalSign nv-sa
Subject
*.5-55.ru
Valid from
Jul 23, 2025
Valid until
Aug 24, 2026 (23 days remaining)
Public key
RSA 4096-bit
Serial
45B29C93658E8C72C48360CD
SHA-256 fingerprint
AB:9F:30:EE:A7:60:E6:A6:54:BC:68:18:7E:A8:37:97:6B:19:21:F3:BC:19:CD:E7:35:6E:C2:F1:A7:84:6E:A1
Chain
GlobalSign RSA OV SSL CA 2018 → GlobalSign
Subject Alternative Names (5)
*.5-55.ru, 5-55.ru, autodiscover.5-55.ru, mail.5-55.ru, owa.5-55.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 Jul 26, 2026.

Never get surprised by 5-55.ru's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch 5-55.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.