SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
schalk-it.de
SSL/TLS Certificate
SSL/TLS Certificate for schalk-it.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- schalk-it.de
- Valid from
- Jul 14, 2026
- Valid until
- Oct 12, 2026 (81 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 053533AEA67A8C387809E5709337CBAA67D9
- SHA-256 fingerprint
- B1:29:F8:FE:E2:84:F6:8F:CE:37:11:6E:0F:E9:BE:27:A4:6E:5B:F3:45:9F:6E:CD:8C:BA:B6:6F:E7:A4:7D:7E
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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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