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 duba-b8.com

Hostname mismatch
Issued by (CA)
Microsoft Corporation
Subject
*.azurewebsites.net
Valid from
Aug 28, 2026
Valid until
Feb 24, 2027 (166 days remaining)
Public key
RSA 2048-bit
Serial
5500C396540FCBFF4EFFC91068000000C39654
SHA-256 fingerprint
C9:F3:68:60:AD:BD:71:47:55:66:18:F3:87:94:4D:2F:20:43:27:05:36:56:E3:86:36:5A:4C:70:CB:B0:32:C4
Chain
Microsoft TLS G2 RSA CA OCSP 16 → Microsoft TLS RSA Root G2 → DigiCert Global Root G2
Subject Alternative Names (30)
*.02.northeurope.c.azurewebsites.net, *.azure-mobile.net, *.azurewebsites.net, *.global-01.azurewebsites.net, *.northeurope-01.azurewebsites.net, *.northeurope-02.azurewebsites.net, *.northeurope-03.azurewebsites.net, *.northeurope-04.azurewebsites.net, *.northeurope-05.azurewebsites.net, *.northeurope-06.azurewebsites.net, *.northeurope.c.azurewebsites.net, *.scm.02.northeurope.c.azurewebsites.net, *.scm.azure-mobile.net, *.scm.azurewebsites.net, *.scm.northeurope-01.azurewebsites.net, *.scm.northeurope-02.azurewebsites.net, *.scm.northeurope-03.azurewebsites.net, *.scm.northeurope-04.azurewebsites.net, *.scm.northeurope-05.azurewebsites.net, *.scm.northeurope-06.azurewebsites.net, *.scm.northeurope.c.azurewebsites.net, *.sso.02.northeurope.c.azurewebsites.net, *.sso.azurewebsites.net, *.sso.northeurope-01.azurewebsites.net, *.sso.northeurope-02.azurewebsites.net, *.sso.northeurope-03.azurewebsites.net, *.sso.northeurope-04.azurewebsites.net, *.sso.northeurope-05.azurewebsites.net, *.sso.northeurope-06.azurewebsites.net, *.sso.northeurope.c.azurewebsites.net

Certificate Authority Authorization (CAA)

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

Never get surprised by duba-b8.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch duba-b8.com 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.