ck12.org valuation and analysis

User-agent: *
Sitemap: https://www.ck12.org/sitemapindex.xml
Sitemap: https://www.ck12.org/sitemap_subjects_index.xml
## Allow UGC 1.x FlexBooks
Allow: */user:*/book/
## Disallow following patterns
Disallow: /api/
Disallow: /ads/
Disallow: /flx/show/web/
Disallow: /flx/show/pdf/
Disallow: /my/
Disallow: /editor/
Disallow: *.../$
Disallow: */user:*/
Disallow: /user-generated-content/
# disallow really old image urls that no longer make sense
Disallow: /ck12/images
Disallow: /external

ck12.org has Semrush global rank of 2,507. ck12.org has an estimated worth of US$ 4,221,899,887, based on its estimated Ads revenue. ck12.org receives approximately 487,142,295 unique visitors each day. Its web server is located in United States, with IP address 99.84.240.120. According to SiteAdvisor, ck12.org is safe to visit.

HTTP/1.1 301 Moved Permanently
Server: CloudFront
Date: Wed, 20 Oct 2021 03:45:47 GMT
Content-Type: text/html
Content-Length: 183
Connection: keep-alive
Location: https://ck12.org/
X-Cache: Redirect from cloudfront
Via: 1.1 6269a48c0a9eee567752b06dffa961d3.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: ORD50-C1
X-Amz-Cf-Id: c7adIlYcWICfXwHgj9tvVq4khMk3n9Iz8QANxGgdICmJH2fNiwZ3RQ==

HTTP/2 301 
content-length: 0
location: https://www.ck12.org/
date: Wed, 20 Oct 2021 03:18:22 GMT
x-cache: Hit from cloudfront
via: 1.1 e7e1e540136f32c828b7e3a521644343.cloudfront.net (CloudFront)
x-amz-cf-pop: ORD50-C1
x-amz-cf-id: QN8yD8vBDVd7mjzpWidt9erE_9BoZvKuh_dyxiV9xgMX8RAaNRCGug==
age: 1645

HTTP/2 302 
content-type: text/plain; charset=UTF-8
content-length: 108
location: http://www.ck12.org/student/
access-control-allow-headers: Content-Type, *
access-control-allow-methods: GET, POST, PUT, DELETE, OPTIONS
date: Wed, 20 Oct 2021 00:47:44 GMT
referrer-policy: strict-origin-when-cross-origin
server: Apache/2.4.29 (Ubuntu)
x-cache: Hit from cloudfront
via: 1.1 1c3dfd086cb7799f806a30e23a0b61d4.cloudfront.net (CloudFront)
x-amz-cf-pop: ORD50-C1
x-amz-cf-id: Kh03On1tggHK9TadZHyRHIK33vyMiJF0yJSKUvKubTeG7_CSAXb9Lw==
age: 10683

HTTP/1.1 301 Moved Permanently
Server: CloudFront
Date: Wed, 20 Oct 2021 03:45:47 GMT
Content-Type: text/html
Content-Length: 183
Connection: keep-alive
Location: https://www.ck12.org/student/
X-Cache: Redirect from cloudfront
Via: 1.1 00abf9cc94cf7da668bffaf352da0016.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: ORD50-C1
X-Amz-Cf-Id: 88lFaiJQ8Qsms_5g3pKvgxtN94N444AVBkzR8oLnl2QkZt4YZnBVDQ==

Domain Name: CK12.ORG
Registry Domain ID: D135194116-LROR
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com
Updated Date: 2018-03-01T18:45:38Z
Creation Date: 2006-12-16T08:37:03Z
Registry Expiry Date: 2022-12-16T08:37:03Z
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: abuse@web.com
Registrar Abuse Contact Phone: +1.8777228662
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registrant State/Province: FL
Registrant Country: US
Name Server: NS-1136.AWSDNS-14.ORG
Name Server: NS-161.AWSDNS-20.COM
Name Server: NS-1687.AWSDNS-18.CO.UK
Name Server: NS-977.AWSDNS-58.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2021-09-08T10:13:15Z <<<