SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
a-pharma.cz
SSL/TLS Certificate
SSL/TLS Certificate for a-pharma.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- a-pharma.cz
- Valid from
- Nov 4, 2026
- Valid until
- Feb 2, 2027 (85 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06BD837545D5131D31EAA7B14AF8207AF262
- SHA-256 fingerprint
- A2:62:99:AA:B7:0C:70:B9:63:34:47:92:78:98:A1:93:E8:65:A7:18:CA:56:EE:FC:60:92:6C:00:9B:03:21:0D
- 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.
We've observed 2 previous certificates for this host. This certificate has been served since Nov 7, 2026.
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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, CNAME, TXT 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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