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ck12.org

CK-12 Foundation

Who runs CK-12 Foundation, what it tracks and what it costs, and the 20 closest K-12 online education alternatives.

Who’s behind it
Not stated
Online since
Unknown
Trackers
Couldn’t check
Prices
No pricing page
Last price change
–
Closest alternative
IXL

Measured from CK-12 Foundation’s own pages, the Internet Archive and public records. Hover a dotted value for its source and date.

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Visit CK-12 Foundation

01 · Who’s behind it

Who runs CK-12 Foundation

CK-12 Foundation ck12.org

Wikidata: california-based non-profitable organization

Company
No imprint we could read
Online since
Not in the Internet Archive

02 · Privacy

What CK-12 Foundation tracks

We couldn’t read ck12.org’s homepage (HTTP 403), so we can’t say what it loads.

03 · Alternatives

Alternatives to CK-12 Foundation

No ad trackersRegistered in the EUFree plan

None of the 60 sites closest to CK-12 Foundation match these filters. We read imprints and pricing pages once a week, so more sites qualify as we get to them.

04 · History

What changed

Price and policy history →

No changes yet. Each new crawl is compared with the last one, and what CK-12 Foundation adds, drops or rewrites shows up here.

05 · Details

How we measure

Alternatives are matched by what sites actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Trackers and the rest of the stack come from the homepage’s code and DNS records.

The full technology stack and search numbers · 10 technologies
Neighbours
k = 60
Sites searched
9,216
Vector
384-d
Query
37 ms

Built with

Live chat & support
  • Zendesk TXT v=spf1 ip4:174.129.252.43 ip4:63.236.100.0/24 ip4:66.77.16.0/24 inclu…
CDN
  • Amazon CloudFront header x-amz-cf-id: Qx9fc4uNGW4qBsWVio66iyLk5KMOuDKUZAETanR51nN9fHOJ81G_kA==
Email hosting
Email delivery
  • Amazon SES TXT v=spf1 ip4:174.129.252.43 ip4:63.236.100.0/24 ip4:66.77.16.0/24 inclu…
DNS hosting
SaaS tools (verified in DNS)
  • Apple Business TXT apple-domain-verification=QF7bv1DM6D2BfMs3
  • Google Search Console TXT google-site-verification=E3NQxLaOaxNDjKuRkg4JntlxjO0OkaV7R1i0iMIVMMI
  • Meta Business Suite TXT facebook-domain-verification=2f23smij2mb05apqoaktiu7od6tn98
  • OpenAI TXT openai-domain-verification=dv-9DfgnOGcp8UMZOccoCfU0yya