Is CK-12 safe?
Provides access to CK-12’s free math, science, and other learning content.
This extension offers access to CK-12 educational materials, including digital textbooks, concepts, videos, quizzes, flashcards, and interactive objects. It supports browsing, learning, practice, class groups, assignments, and progress tracking as described by CK-12.
Who publishes itCK-12 Foundation - 1 other listing from the same operator, none carrying a finding
CK-12 Foundation - 1 other listing from the same operator, none carrying a finding
What this publisher told the store about itself, and the other listings that told it the same thing.
Same store account
1 other listing published from this account, 4k+ users between them, none of them carrying a finding.
Shared hosts - 1 hostname
Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
Where it sends data
Destinations our analysis observed CK-12 contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- www.ck12.org
CK-12 sends data to www.ck12.org. One other extension we have analysed sends data here.