SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sala-a.jp
SSL/TLS Certificate
SSL/TLS Certificate for sala-a.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sala-a.jp
- Valid from
- Sep 3, 2026
- Valid until
- Dec 2, 2026 (56 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05BA2490E39419515126DF66EE8582D4D351
- SHA-256 fingerprint
- B4:BE:71:C4:20:C3:08:A5:F8:DF:1A:7F:BC:F0:DF:7F:24:B4:6D:B0:D8:BC:51:BB:41:CA:91:CF:A3:BA:98:22
- Chain
- YR1 → Root YR → ISRG Root X1
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 Sep 25, 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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