SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
okamura-church.com
SSL/TLS Certificate
SSL/TLS Certificate for okamura-church.com
Self-signed- Issued by (CA)
- 121.83.250.150
- Subject
- 121.83.250.150
- Valid from
- May 6, 2021
- Valid until
- May 4, 2031 (1636 days remaining)
- Public key
- RSA 2048-bit
- Serial
- AAF0DAA5D0AEE3D0
- SHA-256 fingerprint
- 43:5B:C3:9D:0C:6F:B3:39:E2:E9:51:6E:3F:C2:6A:AB:1B:56:E1:DF:63:36:03:91:E9:B6:95:38:05:BA:10:95
- Chain
- 121.83.250.150
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 15, 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, 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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