SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
rich-dad.at
SSL/TLS Certificate
SSL/TLS Certificate for rich-dad.at
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.rich-dad.at
- Valid from
- Apr 4, 2026
- Valid until
- Oct 15, 2026 (84 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 84E5C01EEC3E5BD0A5A44B5FAAC66C11
- SHA-256 fingerprint
- 2D:DA:D9:87:11:7B:44:0D:F1:FF:72:85:A3:EF:1C:F3:0B:DD:56:79:CA:7F:A4:12:58:32:A8:14:4C:11:E1:C5
- 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.
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This is today's certificate. Turn on monitoring and we'll watch rich-dad.at 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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