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Ck12.org

CK-12 Foundation provides a library of free online textbooks, videos, exercises, flashcards, and real world applications for over 5000 concepts from arithmetic to history
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Links Website Twitter Google+ >>
Website Topics textbooks, online textbooks + 8 more>>
Top Keywords from Search Engines ck12 + 4 more>>
Ck12.org is ranked 17,991st in the world (amongst the 30 million domains). A low-numbered rank means that this website gets lots of visitors. This site is relatively popular among users in the united states. It gets 45.7% of its traffic from the united states . This site is estimated to be worth $39942. It has 111 backlinks. Ck12.org has 58% seo score.
Popularity: Safety: Social signals: Legit: legal

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Web Safety

ck12.org is a safe website. This information is from Google, AVG Threat Labs, McAfee SiteAdvisor, Wot.

Google Safebrowsing:
Avg Antivirus
Wot Raiting
SiteAdvisor
Child Safety

Status:

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General Statistics

Title: Free Online Textbooks, Flashcards, Adaptive Practice, Real World Examples, Simulations | CK-12 Found... more
Description: CK-12 Foundation provides a library of free online textbooks, videos, exercises, flashcards, and real world applications for over 5000 concepts from a... more
SEO score: 58%
Website Worth: $39,942 USD
Web Safety:
Web safety signals the level of trust for the site's suitability for all users.
Child Safety:
Child safety signals the level of trust for the site's suitability for children.
Alexa Rank: 17,991
Primary Traffic:
The country where current domain is most popular relative to the other countries
united states
Alexa backlinks: 7,104
Webstatsdomain backlinks:
IP-address: 107.22.233.201 [Trace] [Reverse]
Pageviews per User: 2.69
Average Time on Site: 03:08
Search Percent:
Estimated percentage of visits to www.ck12.org that came from a search engine
62.5%
Bounce:
Estimated percentage of visits to www.ck12.org that consist of a single pageview
72.5%
Daily Pageviews: n\a
Sites redirect to this site: ck-12.org, ck-12.com, ck12.co, ck-12.net, getrealcompetition.org, studyhelp.org, studyhelp.net, watergoodness.org, flexbook.org more (9)
Load Time: 0.02 seconds

Website categories

Currently, we found 12 categories on ck12.org
textbooks 8'128 sites online textbooks 63 sites
education 215'355 sites opensource 5'310 sites
textbook 3'954 sites technology 251'411 sites
Show more

Domain Name

Domain Name: www.ck12.org
Registrar: Network Solutions, LLC (R63-LROR)
Domain Age: 11 years and 11 months
See ck12.org whois information

Sites with a similar domain name

We found 10 websites. With this list, you can understand how other people are using the domain, similar to yours.

Domain Popularity Safety
Favicon for ck12580.com   ck12580.com
Favicon for ck121.com   ck121.com
Favicon for ck1200.com   ck1200.com
Favicon for ck123.com   ck123.com
Favicon for ck120.com   ck120.com
Favicon for ck1229.com   ck1229.com
Favicon for ck12345.net   ck12345.net
Favicon for ck1234567.com   ck1234567.com
Favicon for ck1238.com   ck1238.com
Favicon for ck128.com   ck128.com

Top Keywords

This report shows links that we found on other domains than the index page. You can use this list of domains in order to understand what content users like.

Keyword Position Date
seismographs measure strength earthquakes
1 2016-02-10
amphibian reproduction water
1 2016-02-10
amphibian reproduction and development
1 2016-02-10
main characteristics of igneous rocks
1 2016-02-10
autotroph and heterotroph compare
1 2016-02-10
heterotroph vs autotroph
1 2016-02-10
autotroph vs heterotroph nutrition
1 2016-02-10
heterotroph and autotroph difference
1 2016-02-10
heterotroph and autotroph worksheet
1 2016-02-10
difference between heterotroph and autotroph
1 2016-02-10

Anchors Cloud

Anchors Cloud: List of most used anchor phrases in the anchor tags of the referring domains. An example would be "webstatsdomain" in "<a href="https://webstatsdomain.org">webstatsdomain</a>"

Your site has high probability to get under the filter Google, which called Google penguin.

  • ck-12 foundation ( 13% )
  • ck12.org( 13% )
  • http://www.ck12.org/flexbook( 13% )
  • ck-12( 13% )
  • flexbooks( 11% )
  • ck-12.org( 9% )
  • ck12( 6% )
  • intermediate physics( 4% )
  • ck-12 flexbooks( 4% )
  • we team up with ck-12 for stem( 4% )
  • privacy( 4% )

Terms Cloud

List of most used terms in the anchor text of the referring domains. An example would be "Webstatsdomain" in "<a href="https://webstatsdomain.org">Free website statistics, analysis, review - Webstatsdomain</a>"

  • ck-12( 30% )
  • flexbooks( 15% )
  • foundation( 7% )
  • ck12( 7% )
  • intermediate( 7% )
  • physics( 7% )
  • team( 7% )
  • stem( 7% )
  • privacy( 7% )

Alexa traffic graph

Alexa traffic rank shows the popularity of your site relative to other sites. Ck12.org is ranked 17,991st in the world (among the 30 million domains). A low-numbered rank means that your website gets a lot of visitors.

Alexa rank: 17,991 visit alexa Alexa backlinks: 7,104
This report show rough estimate of ck12.org's popularity
The top queries driving traffic to www.ck12.org from search engines.
diameter of a circle
ck12
radius of a circle
surface area of a triangular prism
phospholipid bilayer

Visitors Localization

Traffic Estimations High
Traffic Rank 17,991th most visited website in the World
united states 45.7 philippines 13.7
india 11.4 australia 4
colombia 2.4

Websites hosted on same IP

Domain Popularity
Favicon for flexbook.org   flexbook.org

Website Load Time

Website load time is an important factor, because Google is taking the site’s loading speed into consideration in determining its ranking. Even though this will not have a big impact, it is still something we (webmasters) should really look into. The reason is pretty simple – the majority of visitors are usually in a rush and no one is fond of waiting half a century before the website finally loads its content or fails to load. At the last check on 2016-08-30, website load time was 0.02. The highest load time is 0.71, the lowest load time is 0.02, the average load time is 0.14.

Contact information:

http://www.ck12.org/about/ - CK-12 Community Site General information about CK-12
http://www.ck12.org/about/feedback/ - Give FeedbackCK-12 Community Site
https://plus.google.com/111140297209948672510/ - CK-12 Foundation - Google+
@CK12Foundation - CK-12 Foundation (CK12Foundation) auf Twitter
See ck12.org contact information in whois record

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