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 schlesinger-gmbh.de

Valid
Issued by (CA)
Let's Encrypt
Subject
schlesinger-gmbh.de
Valid from
Jul 12, 2026
Valid until
Oct 10, 2026 (76 days remaining)
Public key
EC 256-bit
Serial
0553B87FEBB0BCF215011490163126952BC7
SHA-256 fingerprint
E7:A6:3D:56:8A:B8:83:35:4D:8C:99:E9:9C:AE:65:1E:C7:F0:5A:BE:EC:AB:0D:8B:13:86:BC:F1:7B:C8:D9:7F
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
schlesinger-gmbh.de, www.schlesinger-gmbh.de

Certificate Authority Authorization (CAA)

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

Never get surprised by schlesinger-gmbh.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch schlesinger-gmbh.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.