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Ck12.org Quick Summary

Status

Offline

Server IP address resolved: No

Http response code: None

Last Checked: 11/02/2024

Ck12.org traffic estimate is about 15,251 unique visitors and 36,602 pageviews per day. The approximated value of ck12.org is 639,480 USD. Every unique visitor makes about 2.4 pageviews on average.

Alexa Traffic Rank estimates that ck12.org is ranked number 15,363 in the world, while most of its traffic comes from United States, where it occupies as high as 2,637 place.

Ck12.org is registered under .ORG top-level domain. Check other websites in .ORG zone.

During the last check (October 13, 2024) ck12.org has a valid and up-to-date SSL certificate issued by Amazon that expires on January 25, 2025, please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by Amazon.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust ck12.org is pretty a safe domain.

Relying on Google Mobile-Friendly test ck12.org is well optimized for mobile and tablet devices, however website page loading time may be improved.

Ck12.org General Information

Ck12.org Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors
United States US	62.6%
India IN	4.3%
Canada CA	3.7%
Taiwan TW	2.7%
Colombia CO	1.7%
Saudi Arabia SA	1.6%
Philippines PH	1.5%
United Arab Emirates AE	1.5%
Spain ES	1.4%
Other	19%

Country	Rank
United States US	2637
United Arab Emirates AE	4114
Philippines PH	4498
Canada CA	4742
Colombia CO	5508
Taiwan TW	5771
Peru PE	5894
Saudi Arabia SA	7981
Australia AU	13093
Spain ES	14804
India IN	22749
Pakistan PK	28409

Ck12.org Traffic Distribution

Where do visitors go on ck12.org?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews
ck12.org	60.47%
flexbooks.ck12.org	37.05%
interactives.ck12.org	2.13%
other	0.35%

Subdomain	Views per User
ck12.org	2.1
interactives.ck12.org	1.7
flexbooks.ck12.org	1.7

Subdomain	Reach
ck12.org	63.33%
flexbooks.ck12.org	48.13%
interactives.ck12.org	2.76%

Ck12.org Popularity

How popular is ck12.org?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	18601	362
past month	12138	-7315
past week	12588	1195
yesterday	9456	-1641

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	25800	-190	259	1%	2.4	3%
30	18870	-5233	36	44%	2.2	-23.13%
7	20701	2742	33	-15.15%	2	-9.091%
1	15482	145	48	-1.48%	2.2	-21.71%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	17631	547	381	-2.36%
30	11170	-8365	63	87%
7	11226	736	61	-6.486%
1	9381	-2246	80	30%

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Ck12.org Safety Information

Rankchart Summary

Safe

Updated: 11/02/2024

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Safe

Updated: 02/01/2024

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Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Safe

Updated: 10/10/2016

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SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 08/11/2020

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Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee® WebAdvisor

Safe

Updated: 02/22/2021

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McAfee assesses ck12.org for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze ck12.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Child safety is very good

Updated: 01/09/2019

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The WOT calculates reputation of the ck12.org. This reputation system receives ratings from users and information from third-party sources, assesses the ck12.org for safety features and confirms, whether ck12.org is suitable for children.

Ck12.org SSL Information

Information about SSL/TLS certificates

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Domain	ck12.org
Issuer Organization	Amazon
Issuer	Amazon RSA 2048 M02
Algorithm	RSA-SHA256
Valid form	12/27/2023
Expiration	01/25/2025
Signed	Certificate is not self signed
Additional Domains	ck12.org *.ck12.org

SSL Checker

Ck12.org Server Information

Ck12.org Server Location

Where website hosting server is located?

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Ck12.org ASN Information

Information about IP address owner

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ASN ID: 16509

ASN Title: AMAZON-02 - Amazon.com, Inc., US

Updated: 07/16/2024

Raw ASN data:

Geolocation

ASN Lookup

Ck12.org Domain Name Information

Ck12.org DNS Information

Domain name service records

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A

Host	A Record	TTL

Ck12.org Whois Information

Information about registered users or assignees of an Internet resource

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Raw WHOIS data:

Domain Name: ck12.org
Registry Domain ID: e552d21b95954857afcf7ece2fab50b1-LROR
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com
Updated Date: 2022-10-22T07:16:03Z
Creation Date: 2006-12-16T08:37:03Z
Registry Expiry Date: 2027-12-16T08:37:03Z
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: domain.operations@web.com
Registrar Abuse Contact Phone: +1.8777228662
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization:
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: FL
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
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: 2024-09-11T01:23:10Z

Whois

DNS Lookup

Ck12.org HTML Validation

Ck12.org W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

Attribute “itemprop” not allowed on element “meta” at this point.

Bad value “x-dns-prefetch-control” for attribute “http-equiv” on element “meta”.

Bad start tag in “img” in “head”.

Stray end tag “noscript”.

Stray end tag “head”.

Start tag “body” seen but an element of the same type was already open.

Cannot recover after last error. Any further errors will be ignored.

Warnings:

The “type” attribute is unnecessary for JavaScript resources.

HTML Validator

Ck12.org Desktop Performance

How Well Ck12.org Performs On Desktops?

Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

74%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Avoid landing page redirects

Leverage browser caching

Prioritize visible content

Minify HTML

Minify CSS

Minify JavaScript

Optimize images

Enable compression

Updated: 12/07/2019

Ck12.org Mobile Performance

How Optimized Is Ck12.org for Mobile Devices?

Tips on speeding up mobile site performance

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Usability
Speed
Resource Breakdown

Usability

99%

Size tap targets appropriately

Updated: 05/31/2017

Ck12.org Nearest Competitors

Estimated Nearest Competitors Of Ck12.org

ssl-lolipop.jp
alltop.com
canadianpharmaceuticalshelp.com
tetongravity.com
wheaton.edu
readwritethink.org
uneca.org
ibict.br
blogmura.com
spandidos-publications.com
ck12.org
dawanda.com
campsite.bio
logrocket.com
mcarthurglen.com
aucegypt.edu
nuwireinvestor.com
inpit.go.jp
ebusinesspages.com
ips-dc.org
salonemilano.it
eurodns.com

Ck12.org URL Typos

Most common user URL mistypes for ck12.org

www.ck12.com
www.ck12.net
www.ck12.org
www.ck12.info
www.ck12.biz
www.ck12.us
www.ck12.mobi
www.k12.org
www.ck12.org
www.xk12.org
www.cxk12.org
www.xck12.org
www.dk12.org
www.cdk12.org
www.dck12.org
www.fk12.org
www.cfk12.org
www.fck12.org
www.vk12.org
www.cvk12.org
www.vck12.org
www.c12.org
www.cj12.org
www.ckj12.org
www.cjk12.org
www.ci12.org
www.cki12.org
www.cik12.org
www.cm12.org
www.ckm12.org
www.cmk12.org
www.cl12.org
www.ckl12.org
www.clk12.org
www.co12.org
www.cko12.org
www.cok12.org
www.ck2.org
www.ck1.org

Total Resources	51
Number of Hosts	23
Static Resources	34
JavaScript Resources	25
CSS Resources	8

Text	1.0 KBytes
CSS	318.9 KBytes
Images	9.6 KBytes
HTML	24.6 KBytes
JavaScript	2.0 MBytes
Other	2.0 KBytes

Total Resources	117
Number of Hosts	27
Static Resources	97
JavaScript Resources	41
CSS Resources	7

CSS	307.3 KBytes
Images	429.1 KBytes
HTML	69.4 KBytes
JavaScript	3.9 MBytes
Other	797.0 Bytes