Free Online Textbooks, Flashcards, Practice, Real World Examples, Simulations | CK-12 Foundation 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
Monthly Visitors 659K
Estimated Price $113,976


Domain age of is 12 years. Traffic is around 0 visitors during previous month, which corresponds to 9806 place in the global site ranking. During this month, traffic to site has increased by 0% compared to previous month, and equals to 0 visitors. Estimated potential revenue of this site may be up to $3,166 per month. We did not find any sites that have the same ID at Analytics and/or Adsence. According to our information, it is safe to visit

Monthly Visitors

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Oct'19 0
Sep'19 0
Aug'19 0
Jul'19 (est) 699K
Jun'19 (est) 469K
May'19 (est) 1.37M
Apr'19 (est) 755K
Mar'19 (est) 1.93M
Feb'19 (est) 3.00M
Jan'19 (est) 2.73M
Dec'18 (est) 1.90M
Nov'18 (est) 3.49M
Oct'18 (est) 448K
Sep'18 (est) 2.78M
Aug'18 (est) 2.73M
Jul'18 (est) 471K

SiteGur Score

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Oct'19 0
Sep'19 0
Aug'19 0
Jul'19 2646
Jun'19 -6177
May'19 -1053
Apr'19 -5428
Mar'19 -975
Feb'19 4755
Jan'19 4473
Dec'18 -749
Nov'18 6362
Oct'18 -7761
Sep'18 1077
Aug'18 8846
Jul'18 -3075

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Traffic Source

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Estimated Cost and Revenue value: $113,976

Daily Ads revenue: $105

Monthly Ads revenue: $3,166

Yearily Ads revenue: $37,992

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Other information creation: 15 December 2006 expired: 15 December 2017 information first time archived: 04 May 2007 last time archived: 05 July 2015 how many times: 295