SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
niec.edu.sg
SSL/TLS Certificate
SSL/TLS Certificate for niec.edu.sg
Untrusted chain- Issued by (CA)
- GlobalSign nv-sa
- Subject
- niec.edu.sg
- Valid from
- Aug 12, 2026
- Valid until
- Feb 27, 2027 (130 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 150301DCCB3C6E383673EBA5
- SHA-256 fingerprint
- D3:3F:6B:C1:FB:75:2C:AC:94:39:CF:6A:F5:72:0B:19:9C:83:1B:84:5A:72:85:C6:64:F9:BA:36:79:EA:23:1F
- Chain
- —
Certificate Authority Authorization (CAA)
The serving CA (GlobalSign nv-sa) is authorized by this domain's CAA records (amazon.com, globalsign.com).
This certificate has been served since Oct 8, 2026.
Never get surprised by niec.edu.sg's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch niec.edu.sg continuously, notifying you the moment anything moves across all three signals:
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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.