SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
shima-kogyosho.com
SSL/TLS Certificate
SSL/TLS Certificate for shima-kogyosho.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- shima-kogyosho.com
- Valid from
- Oct 2, 2026
- Valid until
- Dec 31, 2026 (56 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05ED382806342CCCD576244BF5113D372D78
- SHA-256 fingerprint
- F1:DC:F6:04:10:7B:02:13:9F:27:71:1F:15:2D:94:28:D4:1F:20:97:92:CA:D4:E8:AF:A7:7A:CB:F4:99:C4:EB
- 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, 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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