SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
1-architekti.cz
SSL/TLS Certificate
SSL/TLS Certificate for 1-architekti.cz
Hostname mismatch- Issued by (CA)
- GlobalSign nv-sa
- Subject
- *.vas-hosting.cz
- Valid from
- Jan 7, 2026
- Valid until
- Feb 8, 2027 (200 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 69C71BB213E96877C0EFBD40
- SHA-256 fingerprint
- 3D:F4:0A:0F:F5:9B:C9:B2:C3:27:45:58:78:C3:CE:E8:47:13:0B:94:B3:2E:47:CD:41:18:FA:76:4D:FF:27:68
- Chain
- GlobalSign GCC R6 AlphaSSL CA 2025 → GlobalSign → GlobalSign → GlobalSign
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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