SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
aspol-speed.pl
SSL/TLS Certificate
SSL/TLS Certificate for aspol-speed.pl
Self-signed- Issued by (CA)
- none
- Subject
- localhost
- Valid from
- Mar 28, 2016
- Valid until
- Aug 13, 2043 (6183 days remaining)
- Public key
- RSA 2048-bit
- Serial
- B909EAE04BFC43EC
- SHA-256 fingerprint
- 43:4D:93:25:8B:55:93:56:7D:2A:4E:B3:3B:F8:5A:E9:F5:12:3F:2D:5C:FE:8D:63:DD:7D:EB:42:0C:60:D9:1E
- Chain
- localhost
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 1, 2026.
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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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