SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
planet-school.de
SSL/TLS Certificate
SSL/TLS Certificate for planet-school.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- planet-school.de
- Valid from
- Jun 22, 2026
- Valid until
- Sep 20, 2026 (53 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05FEF2935CE61BAF7002CADEE2220CF9BE22
- SHA-256 fingerprint
- ED:0C:48:53:71:BE:28:50:C9:B8:34:19:51:EA:7F:8D:6D:75:5C:09:BA:A4:4E:F4:D5:06:FD:67:C8:4B:23:4E
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by planet-school.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch planet-school.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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