SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
and-d.tokyo
SSL/TLS Certificate
SSL/TLS Certificate for and-d.tokyo
Valid- Issued by (CA)
- Google Trust Services
- Subject
- and-d.tokyo
- Valid from
- Oct 22, 2026
- Valid until
- Jan 20, 2027 (66 days remaining)
- Public key
- EC 256-bit
- Serial
- E603217E13A667F3131CE39488B8EA06
- SHA-256 fingerprint
- 68:6B:1A:BE:6D:75:44:01:EB:EA:28:63:6B:12:7F:90:08:27:D1:29:B5:DE:CA:E2:ED:40:F7:43:B2:1E:99:A6
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 2 previous certificates for this host. This certificate has been served since Oct 7, 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, 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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