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 er-a.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- er-a.de
- Valid from
- Jul 2, 2026
- Valid until
- Dec 29, 2026 (147 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 6CEF13A2DF0E32ED4F674D9F9430CD9D
- SHA-256 fingerprint
- 28:7C:C3:D0:A1:66:D7:EF:77:C1:8C:F2:C5:95:15:25:C5:9A:3E:9B:36:F2:1A:1F:05:04:37:30:4D:64:3E:EC
- 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.
Never get surprised by er-a.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch er-a.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.
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