SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
pdr-tech.ch
SSL/TLS Certificate
SSL/TLS Certificate for pdr-tech.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- pdr-tech.ch
- Valid from
- Jun 30, 2026
- Valid until
- Sep 28, 2026 (67 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05056F43E51A3DBDA5A4977289D14748055B
- SHA-256 fingerprint
- 42:C3:20:3E:7C:06:01:B5:F2:02:C6:24:82:F5:F9:E6:F0:D3:B9:8C:F9:F2:9D:3C:04:36:87:63:FA:62:FD:55
- 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 pdr-tech.ch's certificate expiring
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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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