SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for own-si.com

Valid
Issued by (CA)
GoDaddy.com
Subject
own-si.com
Valid from
Sep 28, 2026
Valid until
Apr 14, 2027 (182 days remaining)
Public key
RSA 2048-bit
Serial
862A7B2AF27A9CB4
SHA-256 fingerprint
B7:4F:2D:0A:A4:C6:45:D3:02:43:DF:1C:ED:EA:F8:2A:16:A6:AD:B6:CF:34:76:BB:AC:94:7F:D1:7F:F9:71:DB
Chain
GoDaddy TLS Intermediate CA DV - R1v1 → GoDaddy TLS Root CA - R1 → Go Daddy Root Certificate Authority - G2
Subject Alternative Names (1)
own-si.com

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 Oct 2, 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, 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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