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 wptest.de

Valid
Issued by (CA)
ZeroSSL GmbH
Subject
wptest.de
Valid from
Sep 28, 2026
Valid until
Dec 27, 2026 (75 days remaining)
Public key
EC 256-bit
Serial
EFB340F2D6FE79BBC611C2DC3743D524
SHA-256 fingerprint
85:64:5F:8B:85:AB:54:19:8E:55:D2:A2:76:E9:48:28:66:A0:04:F2:09:94:34:61:47:3C:E9:EA:FB:B6:21:89
Chain
ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
Subject Alternative Names (1)
wptest.de

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 30, 2026.

Never get surprised by wptest.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch wptest.de 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.