SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
akademica.online
SSL/TLS Certificate
SSL/TLS Certificate for akademica.online
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- akademica.online
- Valid from
- Aug 1, 2026
- Valid until
- Oct 30, 2026 (79 days remaining)
- Public key
- EC 256-bit
- Serial
- 06B6B1FDAAE2755B48D31D12AC654091A21E
- SHA-256 fingerprint
- 25:31:77:79:AF:41:D1:B1:33:B8:AD:C0:04:6B:C7:B1:14:2A:89:70:DF:2B:37:A3:BF:28:61:D9:38:A7:84:5A
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
We've observed 1 previous certificate for this host. This certificate has been served since Aug 11, 2026.
Never get surprised by akademica.online's certificate expiring
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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, 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.
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