SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for r-edu.id
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- r-edu.id
- Valid from
- Nov 6, 2026
- Valid until
- Feb 4, 2027 (83 days remaining)
- Public key
- EC 256-bit
- Serial
- 065DED4735B12B5DF4B12B1250ACB551987E
- SHA-256 fingerprint
- 67:BB:BA:78:C0:3E:1A:7B:EE:80:9E:E9:D3:23:9F:81:EE:C9:A3:E7:F0:9C:C7:7E:EA:C3:5A:B7:F1:AD:EC:F6
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 15, 2026.
Never get surprised by r-edu.id's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch r-edu.id 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.
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