SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kanagawa-kenbiten.com
SSL/TLS Certificate
SSL/TLS Certificate for kanagawa-kenbiten.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.kanagawa-kenbiten.com
- Valid from
- Jun 21, 2026
- Valid until
- Sep 19, 2026 (54 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05852623508B77610945048ECCA33257127C
- SHA-256 fingerprint
- 0D:C8:61:0D:64:6E:A7:B5:12:12:12:2A:A9:F8:66:B1:82:3A:07:32:9E:6E:3E:14:AD:4D:C1:0A:2A:A4:1D:87
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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