SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lerner-art.de
SSL/TLS Certificate
SSL/TLS Certificate for lerner-art.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.lerner-art.de
- Valid from
- Oct 15, 2026
- Valid until
- Apr 20, 2027 (181 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0772E7048F81FD35E86C5D45BBE0905B
- SHA-256 fingerprint
- 2C:E2:E4:82:E6:14:9C:19:52:20:2D:E2:84:69:8F:90:BC:B7:0D:F8:D6:22:EB:C2:E1:77:7A:19:88:CA:85:0C
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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 11, 2026.
Never get surprised by lerner-art.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch lerner-art.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, CNAME, TXT 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.