SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
66-228-42-24.ip.linodeusercontent.com
SSL/TLS Certificate
SSL/TLS Certificate for 66-228-42-24.ip.linodeusercontent.com
Self-signed- Issued by (CA)
- svea.wpopt.net
- Subject
- svea.wpopt.net
- Valid from
- Nov 6, 2026
- Valid until
- Nov 6, 2027 (355 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0280CC7F67A5BF551A900FA1AE4AFF61971B4A2B
- SHA-256 fingerprint
- 4C:6E:38:C2:D7:20:3E:91:C9:E9:EB:EE:05:5C:1F:F3:AD:50:54:D2:4C:FF:A1:0B:1C:C7:BD:73:B1:DC:CF:03
- Chain
- svea.wpopt.net
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 24, 2026.
Never get surprised by 66-228-42-24.ip.linodeusercontent.com's certificate expiring
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Uptime
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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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