SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ra-assmus.de
SSL/TLS Certificate
SSL/TLS Certificate for ra-assmus.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.ra-assmus.de
- Valid from
- Jun 15, 2026
- Valid until
- Dec 26, 2026 (99 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 7495838C56D377D3E0B5AA88B3729A51
- SHA-256 fingerprint
- E5:4C:6B:4A:52:11:AA:3E:42:95:2E:9C:78:FF:8E:25:7F:7D:E6:90:5E:0D:2D:B2:83:16:ED:D3:5D:A2:E1:64
- 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 ra-assmus.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ra-assmus.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.