SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
shota-kataoka.com
SSL/TLS Certificate
SSL/TLS Certificate for shota-kataoka.com
Untrusted chain- Issued by (CA)
- Let's Encrypt
- Subject
- shota-kataoka.com
- Valid from
- Oct 9, 2026
- Valid until
- Jan 7, 2027 (76 days remaining)
- Public key
- EC 256-bit
- Serial
- 062B81BADF08276C2EB101325951EA99A2C0
- SHA-256 fingerprint
- BB:5D:28:53:41:34:0A:5C:29:2A:32:4B:C8:8C:B8:45:04:26:19:1A:57:D5:DD:CC:D0:D1:7B:AD:E5:89:9D:93
- Chain
- YE1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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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