SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
acad-edu.org
SSL/TLS Certificate
SSL/TLS Certificate for acad-edu.org
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- acad.org
- Valid from
- Jul 21, 2026
- Valid until
- Oct 19, 2026 (83 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05F1A8B8A94EA02B996FB3F7AFD70F1F0033
- SHA-256 fingerprint
- 61:91:7F:81:12:4B:E6:A5:02:36:DD:9F:4B:4E:CA:0F:F2:A5:AE:B2:2C:58:A4:E3:4E:E7:7B:96:D0:D5:EB:A1
- 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.
Never get surprised by acad-edu.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch acad-edu.org 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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.