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 lemir-hamburg.de

Valid
Issued by (CA)
Let's Encrypt
Subject
lemir-hamburg.de
Valid from
Aug 18, 2026
Valid until
Nov 16, 2026 (64 days remaining)
Public key
RSA 4096-bit
Serial
063CC8A5C078BFFC7E210F1167A6FE1C7D98
SHA-256 fingerprint
A8:BD:82:D9:67:96:E9:FE:13:B0:D3:D9:9E:5A:D1:ED:CA:9E:BC:67:C9:27:0A:0E:5B:1B:B8:47:F8:05:32:64
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
lemir-hamburg.de

Certificate Authority Authorization (CAA)

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

Never get surprised by lemir-hamburg.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch lemir-hamburg.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.