SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nims-chiangmai.com
SSL/TLS Certificate
SSL/TLS Certificate for nims-chiangmai.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- nims-chiangmai.org
- Valid from
- Oct 13, 2026
- Valid until
- Jan 11, 2027 (61 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06FD10CDD697DF15764B78CEC3D3599EF66E
- SHA-256 fingerprint
- E3:70:4A:FC:F2:CA:F0:83:A7:65:DC:3A:3F:81:ED:FD:DB:F6:2A:02:4A:2F:16:02:0A:1C:5C:69:04:7C:1F:2E
- 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.
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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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