SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
one-y.com
SSL/TLS Certificate
SSL/TLS Certificate for one-y.com
Valid- Issued by (CA)
- GoDaddy.com
- Subject
- one-y.com
- Valid from
- Aug 6, 2026
- Valid until
- Nov 4, 2026 (36 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 5E6F567AD0B2ADF5
- SHA-256 fingerprint
- DF:34:E9:7C:ED:5E:65:6F:31:3B:6D:F9:58:D6:8F:CD:3E:FE:5E:8E:A6:6B:43:BE:13:62:D8:72:13:B9:F7:3E
- Chain
- GoDaddy TLS Intermediate CA DV - R1v1 → GoDaddy TLS Root CA - R1 → Go Daddy Root Certificate Authority - G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by one-y.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch one-y.com continuously, notifying you the moment anything moves across all three signals:
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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.