o.quizlet.com
Category: Education
Description of o.quizlet.com
o.quizlet.com appears to be a subdomain of Quizlet, an online learning platform focused on study tools such as flashcards, practice tests, and other educational resources. The domain classification data consistently places it in education-related categories, suggesting it supports Quizlet’s learning and reference services rather than operating as a standalone unrelated website.
Based on the domain structure and infrastructure details, this subdomain is likely operated as part of Quizlet’s broader web platform. The long registration history of the parent domain, dedicated nameservers under quizlet.com, and educational categorizations all indicate that it appears to be associated with an established online education service.
Safety Assessment for o.quizlet.com
At the time of this scan, the available security signals were broadly clean. No detections were reported by 0 out of 92 security engines, the malware scan indicated no flagged files, and the checked blacklist and threat-database entries did not show listings. Multiple web-classification providers also categorized the site as education-related, which is consistent with the Quizlet brand and expected site purpose.
Additional context slightly strengthens confidence in the result: the domain has been registered for more than 21 years, DNSSEC is enabled, and the site uses valid HTTPS. While no automated scan can guarantee future behavior or rule out every risk, there were no meaningful indicators of malware, phishing, or blacklist activity in the provided data.
Based on available scan data, no significant threats were detected at the time of this scan.
Technical Description
The site is served over HTTPS with a valid TLS certificate issued by Google Trust Services, expiring on 2026-06-23. It is hosted behind Cloudflare infrastructure on IP address 104.16.133.27, with the web server identified as Cloudflare. The domain uses dedicated quizlet.com nameservers and has DNSSEC enabled, which may help protect against certain DNS tampering scenarios.
No technical security issues were evident in the supplied scan results. The malware scan reported 0 flagged files out of 2 scanned, no suspicious external links or iframes were identified, and blacklist checks were clean at the time of review. The protocol version was not provided, so a deeper TLS configuration assessment is not possible from this dataset alone.
Share your experience with this website. Was it safe? Did you encounter any issues?