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 de-wohnbau.de

Valid
Issued by (CA)
Let's Encrypt
Subject
de-wohnbau.de
Valid from
Aug 20, 2026
Valid until
Nov 18, 2026 (38 days remaining)
Public key
RSA 2048-bit
Serial
05904C69FFFB4C7528D3BF1DD410B7AA9012
SHA-256 fingerprint
FB:A3:5D:10:8C:5D:7C:67:C1:F4:76:4A:57:E8:A8:0E:CE:DB:94:64:2D:B4:73:B1:47:1D:7B:AD:D1:42:23:EC
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (6)
de-wohnbau.de, dewohnbau.de, mail.de-wohnbau.de, webmail.de-wohnbau.de, www.de-wohnbau.de, www.dewohnbau.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 Oct 10, 2026.

Never get surprised by de-wohnbau.de's certificate expiring

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