SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
zenkyo-miyagi.com
SSL/TLS Certificate
SSL/TLS Certificate for zenkyo-miyagi.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.zenkyo-miyagi.com
- Valid from
- Jul 14, 2026
- Valid until
- Oct 12, 2026 (60 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05C191AB68E3B0A87CB779ADDD298D575DE2
- SHA-256 fingerprint
- 4F:2A:8E:0B:17:90:3B:AC:C6:7F:DC:74:AD:82:70:53:24:94:D8:5D:33:46:C7:96:C0:29:CC:DD:1D:EA:6F:03
- 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
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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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