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

1.67 Rating by CuteStat

ck12.org is 1 decade 11 months old. It has a global traffic rank of #7,401 in the world. It is a domain having .org extension. This site has a Google PageRank of 6/10. This website is estimated worth of $ 1,193,400.00 and have a daily income of around $ 1,105.00. As no active threats were reported recently by users, ck12.org is SAFE to browse.

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Google Pagerank
PR 6 out of 10
PageSpeed Score
83
Siteadvisor Rating
No Risk Issues

Traffic Report

Daily Unique Visitors: 138,136
Daily Pageviews: 1,105,088

Estimated Valuation

Income Per Day: $ 1,105.00
Estimated Worth: $ 1,193,400.00

Search Engine Indexes

Google Indexed Pages: Not Applicable
Yahoo Indexed Pages: Not Applicable
Bing Indexed Pages: Not Applicable

Search Engine Backlinks

Google Backlinks: Not Applicable
Bing Backlinks: Not Applicable
Alexa BackLinks: Not Applicable

Safety Information

Google Safe Browsing: No Risk Issues
Siteadvisor Rating: No Risk Issues
WOT Trustworthiness: Excellent
WOT Privacy: Excellent
WOT Child Safety: Excellent

Website Ranks & Scores

Google Pagerank:
Alexa Rank: 7,401
Domain Authority: Not Applicable
DMOZ Listing: No

Web Server Information

Hosted IP Address:

54.243.211.55

Hosted Country:

United States US

Location Latitude:

39.0437

Location Longitude:

-77.4875

Page Resources Breakdown

Homepage Links Analysis

Social Engagement

Facebook Shares: Not Applicable
Facebook Likes: Not Applicable
Facebook Comments: Not Applicable
Twitter Count (Tweets): Not Applicable
Linkedin Shares: Not Applicable
Delicious Shares: Not Applicable
Google+: 1,617

Website Inpage Analysis

H1 Headings: Not Applicable H2 Headings: Not Applicable
H3 Headings: 3 H4 Headings: 1
H5 Headings: Not Applicable H6 Headings: Not Applicable
Total IFRAMEs: 1 Total Images: 35
Google Adsense: Not Applicable Google Analytics: Not Applicable

HTTP Header Analysis

Http-Version: 1.1
Status-Code: 200
Status: 200 OK
Date: Sun, 31 Jul 2016 00:46:01 GMT
Server: Apache/2.2.22 (Ubuntu)
Pragma: no-cache
Cache-Control: no-cache
P3P: CP="ALL DSP COR CURa OUR IND ONL COM NAV INT CNT STA PRE"
Vary: User-Agent,Accept-Encoding
Access-Control-Allow-Headers: Content-Type, *
Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS
Access-Control-Allow-Credentials: true
Content-Encoding: gzip
Content-Length: 13579
Connection: close
Content-Type: text/html; charset=utf-8

Domain Information

Domain Registrar: Public Interest Registry
Registration Date: 2006-12-16 1 decade 11 months 3 weeks ago
Domain Status:
clientTransferProhibited
Owner's E-Mail: r88g92hn9x9@networksolutionsprivateregistration.com

Domain Nameserver Information

Host IP Address Country
ns1.ck12.org 23.20.69.33 United States United States
ns2.ck12.org 50.19.3.149 United States United States

DNS Record Analysis

Host Type TTL Extra
ck12.org A 120 IP: 54.243.211.55
ck12.org A 120 IP: 107.22.233.201
ck12.org NS 86399 Target: ns1.ck12.org
ck12.org NS 86399 Target: ns2.ck12.org
ck12.org SOA 604800 MNAME: ns1.ck12.org
RNAME: ops.ck12.org
Serial: 1469732487
Refresh: 604800
Retry: 86400
Expire: 2419200
ck12.org MX 120 Priority: 50
Target: aspmx5.aspmx.l.google.com
ck12.org MX 120 Priority: 10
Target: aspmx.l.google.com
ck12.org MX 120 Priority: 50
Target: aspmx4.aspmx.l.google.com
ck12.org MX 120 Priority: 30
Target: alt1.aspmx.l.google.com
ck12.org MX 120 Priority: 50
Target: aspmx2.aspmx.l.google.com
ck12.org MX 120 Priority: 30
Target: alt2.aspmx.l.google.com
ck12.org TXT 120 TXT: v=spf1 mx ptr ip4:174.129.252.43
include:icpbounce.com
include:_spf.google.com ~all

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Alexa Traffic Rank

Alexa Search Engine Traffic

Full WHOIS Lookup

Domain Name: CK12.ORG
Domain ID: D135194116-LROR
WHOIS Server:
Referral URL: http://www.networksolutions.com
Updated Date: 2012-07-11T22:07:33Z
Creation Date: 2006-12-16T08:37:03Z
Registry Expiry Date: 2017-12-16T08:37:03Z
Sponsoring Registrar: Network Solutions, LLC
Sponsoring Registrar IANA ID: 2
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registrant ID: 42073829-NSIV
Registrant Name: Perfect Privacy, LLC
Registrant Organization: CK12 Foundation
Registrant Street: 12808 Gran Bay Parkway West
Registrant Street: care of Network Solutions
Registrant City: Jacksonville
Registrant State/Province: FL
Registrant Postal Code: 32258
Registrant Country: US
Registrant Phone: +1.5707088780
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: r88g92hn9x9@networksolutionsprivateregistration.com
Admin ID: 42073829-NSIV
Admin Name: Perfect Privacy, LLC
Admin Organization: CK12 Foundation
Admin Street: 12808 Gran Bay Parkway West
Admin Street: care of Network Solutions
Admin City: Jacksonville
Admin State/Province: FL
Admin Postal Code: 32258
Admin Country: US
Admin Phone: +1.5707088780
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: r88g92hn9x9@networksolutionsprivateregistration.com
Tech ID: 45529149-NSIV
Tech Name: Perfect Privacy, LLC
Tech Organization: CK-12 Foundation
Tech Street: 12808 Gran Bay Parkway West
Tech Street: care of Network Solutions
Tech City: Jacksonville
Tech State/Province: FL
Tech Postal Code: 32258
Tech Country: US
Tech Phone: +1.5707088780
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email: b54hj52x823@networksolutionsprivateregistration.com
Name Server: NS1.CK12.ORG
Name Server: NS2.CK12.ORG
DNSSEC: unsigned
>>> Last update of WHOIS database: 2016-07-29T19:44:39Z

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