SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
shonai-ya.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for shonai-ya.co.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.shonai-ya.co.jp
- Valid from
- Jul 29, 2026
- Valid until
- Oct 27, 2026 (68 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 068477E8A056CCEA4F978F9C305E36C8F113
- SHA-256 fingerprint
- 60:9B:14:59:B2:7E:DC:46:D4:63:9E:7A:54:50:75:CB:F7:6C:83:21:14:62:19:34:33:A6:D5:FC:79:4A:D6:A1
- 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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