SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ativ-lingual.com.br
SSL/TLS Certificate
SSL/TLS Certificate for ativ-lingual.com.br
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- ativ-lingual.com.br
- Valid from
- Jul 8, 2026
- Valid until
- Oct 6, 2026 (21 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 052B80DB9CB035F3642FC58A28ECE1C0B7C0
- SHA-256 fingerprint
- 4B:98:26:C7:B9:6F:F3:2A:70:9F:BB:37:5C:FF:5F:0B:AF:12:E7:67:0A:51:FB:08:F1:22:80:FF:AA:9C:AD:03
- 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.
This certificate has been served since Aug 4, 2026.
Never get surprised by ativ-lingual.com.br's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ativ-lingual.com.br 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.