flexbooks.ck12.org Open in urlscan Pro
2600:9000:2016:9e00:8:f05f:c540:93a1 Public Scan

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Submitted URL:
http://flexbooks.ck12.org/
Effective URL:
https://flexbooks.ck12.org/flexbooks/
Submission: On December 01 via api (December 1st 2023, 3:59:17 am UTC) from US — Scanned from DE

Summary HTTP 137 Redirects Links 68 Behaviour Indicators

Summary

This website contacted 22 IPs in 2 countries across 10 domains to perform 137 HTTP transactions. The main IP is 2600:9000:2016:9e00:8:f05f:c540:93a1, located in United States and belongs to AMAZON-02, US. The main domain is flexbooks.ck12.org. The Cisco Umbrella rank of the primary domain is 53006.
TLS certificate: Issued by Go Daddy Secure Certificate Authority... on December 6th 2022. Valid for: a year.

This is the only time flexbooks.ck12.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
1 1	2600:9000:201... 2600:9000:2016:9200:8:f05f:c540:93a1	16509 (AMAZON-02) (AMAZON-02)
1 20	2600:9000:201... 2600:9000:2016:9e00:8:f05f:c540:93a1	16509 (AMAZON-02) (AMAZON-02)
5	2600:9000:215... 2600:9000:2156:ee00:8:f05f:c540:93a1	16509 (AMAZON-02) (AMAZON-02)
47	2600:9000:201... 2600:9000:2016:a000:8:f05f:c540:93a1	16509 (AMAZON-02) (AMAZON-02)
4	2600:9000:201... 2600:9000:2016:200:8:f05f:c540:93a1	16509 (AMAZON-02) (AMAZON-02)
3	18.66.122.99 18.66.122.99	16509 (AMAZON-02) (AMAZON-02)
4	2a00:1450:400... 2a00:1450:4001:808::200d	15169 (GOOGLE) (GOOGLE)
5	2600:9000:201... 2600:9000:2016:ec00:12:aac7:4140:93a1	16509 (AMAZON-02) (AMAZON-02)
7	2600:9000:201... 2600:9000:2016:e200:1f:8b19:b780:93a1	16509 (AMAZON-02) (AMAZON-02)
2	2a00:1450:400... 2a00:1450:4001:810::2008	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:830::200e	15169 (GOOGLE) (GOOGLE)
3	2a00:1450:400... 2a00:1450:4001:803::200e	15169 (GOOGLE) (GOOGLE)
1	2600:1901:0:4... 2600:1901:0:498c::	396982 (GOOGLE-CL...) (GOOGLE-CLOUD-PLATFORM)
4	2a04:4e42:600... 2a04:4e42:600::729	54113 (FASTLY) (FASTLY)
24	2600:9000:207... 2600:9000:2070:1200:f:a35f:3100:93a1	16509 (AMAZON-02) (AMAZON-02)
3	2a00:1450:400... 2a00:1450:4001:831::2003	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:828::200a	15169 (GOOGLE) (GOOGLE)
1	2001:4860:480... 2001:4860:4802:34::36	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:828::2003	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:828::2004	15169 (GOOGLE) (GOOGLE)
1	192.229.221.25 192.229.221.25	15133 (EDGECAST) (EDGECAST)
137	22

1 2600:9000:2016:9200:8:f05f:c540:93a1 (United States) 1 redirects

ASN16509 (AMAZON-02, US)

flexbooks.ck12.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

20 2600:9000:2016:9e00:8:f05f:c540:93a1 (United States) 1 redirects

ASN16509 (AMAZON-02, US)

flexbooks.ck12.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
www.ck12.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

5 2600:9000:2156:ee00:8:f05f:c540:93a1 (United States)

ASN16509 (AMAZON-02, US)

static1.ck12.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

47 2600:9000:2016:a000:8:f05f:c540:93a1 (United States)

ASN16509 (AMAZON-02, US)

static2.ck12.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 2600:9000:2016:200:8:f05f:c540:93a1 (United States)

ASN16509 (AMAZON-02, US)

static3.ck12.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 18.66.122.99 (United States)

ASN16509 (AMAZON-02, US)
PTR: server-18-66-122-99.fra60.r.cloudfront.net

tinymce.ck12.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 2a00:1450:4001:808::200d (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

accounts.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

5 2600:9000:2016:ec00:12:aac7:4140:93a1 (United States)

ASN16509 (AMAZON-02, US)

d3lkjnwva6z405.cloudfront.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

7 2600:9000:2016:e200:1f:8b19:b780:93a1 (United States)

ASN16509 (AMAZON-02, US)

static.ck12.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:810::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.googletagmanager.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:830::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

translate.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 2a00:1450:4001:803::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2600:1901:0:498c:: (Kansas City, United States)

ASN396982 (GOOGLE-CLOUD-PLATFORM, US)

cdn.mxpnl.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 2a04:4e42:600::729 (United States)

ASN54113 (FASTLY, US)

js.sentry-cdn.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
browser.sentry-cdn.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

24 2600:9000:2070:1200:f:a35f:3100:93a1 (United States)

ASN16509 (AMAZON-02, US)

dr282zn36sxxg.cloudfront.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 2a00:1450:4001:831::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.gstatic.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:828::200a (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

translate.googleapis.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2001:4860:4802:34::36 (United States)

ASN15169 (GOOGLE, US)

region1.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:828::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

fonts.gstatic.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:828::2004 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 192.229.221.25 (United States)

ASN15133 (EDGECAST, US)

www.paypalobjects.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
87	ck12.org 2 redirects flexbooks.ck12.org — Cisco Umbrella Rank: 53006 static1.ck12.org — Cisco Umbrella Rank: 55183 static2.ck12.org — Cisco Umbrella Rank: 52682 static3.ck12.org — Cisco Umbrella Rank: 58073 tinymce.ck12.org — Cisco Umbrella Rank: 56467 static.ck12.org — Cisco Umbrella Rank: 50237 www.ck12.org — Cisco Umbrella Rank: 42967	998 KB
29	cloudfront.net d3lkjnwva6z405.cloudfront.net dr282zn36sxxg.cloudfront.net	1 MB
6	google.com accounts.google.com — Cisco Umbrella Rank: 23 translate.google.com — Cisco Umbrella Rank: 1298 www.google.com — Cisco Umbrella Rank: 2	112 KB
4	gstatic.com www.gstatic.com fonts.gstatic.com	15 KB
4	sentry-cdn.com js.sentry-cdn.com — Cisco Umbrella Rank: 6063 browser.sentry-cdn.com — Cisco Umbrella Rank: 3972	52 KB
4	google-analytics.com www.google-analytics.com — Cisco Umbrella Rank: 27 region1.google-analytics.com — Cisco Umbrella Rank: 2189	22 KB
2	googletagmanager.com www.googletagmanager.com — Cisco Umbrella Rank: 36	210 KB
1	paypalobjects.com www.paypalobjects.com — Cisco Umbrella Rank: 1965	442 B
1	googleapis.com translate.googleapis.com — Cisco Umbrella Rank: 947	82 KB
1	mxpnl.com cdn.mxpnl.com — Cisco Umbrella Rank: 3355	18 KB
137	10

	Domain	Requested by
47	static2.ck12.org	flexbooks.ck12.org static3.ck12.org static1.ck12.org static2.ck12.org
24	dr282zn36sxxg.cloudfront.net	flexbooks.ck12.org
19	flexbooks.ck12.org	2 redirects flexbooks.ck12.org static3.ck12.org static2.ck12.org
7	static.ck12.org	flexbooks.ck12.org static2.ck12.org
5	d3lkjnwva6z405.cloudfront.net	flexbooks.ck12.org d3lkjnwva6z405.cloudfront.net
5	static1.ck12.org	flexbooks.ck12.org
4	accounts.google.com	flexbooks.ck12.org accounts.google.com
4	static3.ck12.org	flexbooks.ck12.org
3	www.gstatic.com	www.gstatic.com translate.googleapis.com
3	www.google-analytics.com	www.googletagmanager.com www.google-analytics.com browser.sentry-cdn.com
3	tinymce.ck12.org	flexbooks.ck12.org tinymce.ck12.org
2	browser.sentry-cdn.com	js.sentry-cdn.com
2	js.sentry-cdn.com	www.googletagmanager.com
2	www.ck12.org	static.ck12.org flexbooks.ck12.org
2	www.googletagmanager.com	flexbooks.ck12.org www.googletagmanager.com
1	www.paypalobjects.com
1	www.google.com	flexbooks.ck12.org
1	fonts.gstatic.com	flexbooks.ck12.org
1	region1.google-analytics.com	www.googletagmanager.com
1	translate.googleapis.com
1	cdn.mxpnl.com	flexbooks.ck12.org
1	translate.google.com	static3.ck12.org
137	22

This site contains links to these domains. Also see Links.

Domain
www.ck12.org
ck12support.zendesk.com
interactives.ck12.org
www.ck12info.org
status.ck12.org
ck12foundation.medium.com
www.facebook.com
twitter.com
www.linkedin.com
www.pinterest.com

Subject Issuer	Validity	Valid
*.ck12.org Go Daddy Secure Certificate Authority - G2	`2022-12-06` - `2024-01-07`	a year	crt.sh
accounts.google.com GTS CA 1C3	`2023-10-23` - `2024-01-15`	3 months	crt.sh
*.cloudfront.net Amazon RSA 2048 M01	`2023-10-10` - `2024-09-19`	a year	crt.sh
*.google-analytics.com GTS CA 1C3	`2023-10-23` - `2024-01-15`	3 months	crt.sh
*.google.com GTS CA 1C3	`2023-10-23` - `2024-01-15`	3 months	crt.sh
*.mxpnl.com GeoTrust TLS RSA CA G1	`2023-07-12` - `2024-08-11`	a year	crt.sh
*.sentry-cdn.com GlobalSign Atlas R3 DV TLS CA 2023 Q3	`2023-08-01` - `2024-09-01`	a year	crt.sh
*.gstatic.com GTS CA 1C3	`2023-10-23` - `2024-01-15`	3 months	crt.sh
upload.video.google.com GTS CA 1C3	`2023-10-23` - `2024-01-15`	3 months	crt.sh
www.google.com GTS CA 1C3	`2023-10-23` - `2024-01-15`	3 months	crt.sh
www.paypal.com DigiCert SHA2 Extended Validation Server CA	`2023-10-12` - `2024-10-31`	a year	crt.sh

This page contains 3 frames:

Primary Page: https://flexbooks.ck12.org/flexbooks/
Frame ID: DBFDA42CBB9BDB7F83620FAA48A40082
Requests: 144 HTTP requests in this frame

Frame: data://truncated
Frame ID: 907D46D32A8F5DD254CD44EF999B814C
Requests: 1 HTTP requests in this frame

Frame: https://www.gstatic.com/_/translate_http/_/ss/k=translate_http.tr.qhDXWpKopYk.L.W.O/am=CAM/d=0/rs=AN8SPfqeKn8wA30q4viup18yaci8udUjKQ/m=el_main_css
Frame ID: A72A12619C6A376D7B9001C360D135B5
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

K-12 FlexBooks | CK-12 Foundation

Page URL History Show full URLs

http://flexbooks.ck12.org/ HTTP 301
https://flexbooks.ck12.org/ HTTP 301
https://flexbooks.ck12.org/flexbooks/ Page URL

Detected technologies

Google Sign-in (Social logins) Expand

Overall confidence: 100%
Detected patterns

accounts\.google\.com/gsi/client

MathJax (JavaScript Graphics) Expand

Overall confidence: 100%
Detected patterns

([\d.]+)?/mathjax\.js

PayPal (Payment Processors) Expand

Overall confidence: 100%
Detected patterns

paypalobjects\.com

RequireJS (JavaScript Frameworks) Expand

Overall confidence: 100%
Detected patterns

require.*\.js

Google Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

google-analytics\.com/(?:ga|urchin|analytics)\.js

Google Tag Manager (Tag Managers) Expand

Overall confidence: 100%
Detected patterns

googletagmanager\.com/gtm\.js
googletagmanager\.com/gtag/js

Page Statistics

137
Requests

100 %
HTTPS

90 %
IPv6

10
Domains

22
Subdomains

22
IPs

2
Countries

2745 kB
Transfer

5256 kB
Size

9
Cookies

68 Outgoing links

These are links going to different origins than the main page.

URL: https://www.ck12.org/pages/donate/
Title: Learn more

Search URL Search Domain Scan URL

URL: https://www.ck12.org/

Search URL Search Domain Scan URL

URL: https://ck12support.zendesk.com/hc/en-us/articles/8034176909723-Which-FlexBook-Is-Right-for-Me-
Title: What's the difference?

Search URL Search Domain Scan URL

URL: https://www.ck12.org/elementary-science/
Title: Grade K to 5

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/flexlets/#math
Title: Math FlexLets

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/flexlets/#science
Title: Science FlexLets

Search URL Search Domain Scan URL

URL: https://www.ck12.org/c/writing/
Title: Writing

Search URL Search Domain Scan URL

URL: https://www.ck12.org/c/spelling/
Title: Spelling

Search URL Search Domain Scan URL

URL: https://www.ck12.org/fbbrowse/list/?Subject=History&Grade=All%20Grades&Language=All%20Languages
Title: History

Search URL Search Domain Scan URL

URL: https://www.ck12.org/c/astronomy/
Title: Astronomy

Search URL Search Domain Scan URL

URL: https://www.ck12.org/c/engineering/
Title: Engineering

Search URL Search Domain Scan URL

URL: https://www.ck12.org/c/health/
Title: Health

Search URL Search Domain Scan URL

URL: https://www.ck12.org/fbbrowse/list?Language=All%20Languages&Subject=Photography&Grade=All%20Grades
Title: Photography

Search URL Search Domain Scan URL

URL: https://www.ck12.org/c/technology/
Title: Technology

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/adult-education/#adult-basic-education
Title: Basic Education

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/adult-education/#high-school-diploma
Title: High School Diploma

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/adult-education/#high-school-equivalency
Title: High School Equivalency

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/adult-education/#career-technical-education
Title: Career Technical Ed

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/adult-education/#ESL
Title: English as 2nd Language

Search URL Search Domain Scan URL

URL: https://www.ck12.org/chile/
Title: Chile

Search URL Search Domain Scan URL

URL: https://www.ck12.org/brasil/
Title: Brasil

Search URL Search Domain Scan URL

URL: https://www.ck12.org/cbse/
Title: India

Search URL Search Domain Scan URL

URL: https://www.ck12.org/georgia
Title: Georgia

Search URL Search Domain Scan URL

URL: https://www.ck12.org/fbbrowse/list?Language=Spanish&Subject=All%20Subjects&Grade=All%20Grades
Title: Spanish

Search URL Search Domain Scan URL

URL: https://interactives.ck12.org/simulations/physics.html?lang=ko
Title: Korean

Search URL Search Domain Scan URL

URL: https://interactives.ck12.org/simulations/physics.html?lang=de
Title: Deutsch

Search URL Search Domain Scan URL

URL: https://interactives.ck12.org/simulations/physics.html?lang=zh-TW
Title: Chinese

Search URL Search Domain Scan URL

URL: https://interactives.ck12.org/simulations/physics.html?lang=EL
Title: Greek

Search URL Search Domain Scan URL

URL: https://interactives.ck12.org/simulations/physics.html?lang=pl
Title: Polski

Search URL Search Domain Scan URL

URL: https://www.ck12.org/flexi/
Title: FlexiA FREE Digital Tutor for Every Student

Search URL Search Domain Scan URL

URL: https://www.ck12.org/fbbrowse/
Title: FlexBooksCustomizable, digital textbooks

Search URL Search Domain Scan URL

URL: https://www.ck12.org/schools/
Title: SchoolsFlexBooks from schools and districts near you

Search URL Search Domain Scan URL

URL: https://www.ck12.org/study-guides/
Title: Study GuidesQuick review with key information for each concept

Search URL Search Domain Scan URL

URL: https://www.ck12.org/assessment/ui/browse/practice/
Title: Adaptive PracticeBuilding knowledge at each student’s skill level

Search URL Search Domain Scan URL

URL: https://interactives.ck12.org/simulations/
Title: SimulationsInteractive Physics & Chemistry Simulations

Search URL Search Domain Scan URL

URL: https://interactives.ck12.org/plix/
Title: PLIXPlay. Learn. Interact. eXplore.

Search URL Search Domain Scan URL

URL: https://www.ck12.org/ccss/
Title: CCSS MathConcepts and FlexBooks aligned to Common Core

Search URL Search Domain Scan URL

URL: https://www.ck12.org/ngss/
Title: NGSSConcepts aligned to Next Generation Science Standards

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/certifiededucator/
Title: Certified EducatorStand out as an educator. Become CK-12 Certified.

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/ck12-webinars/
Title: WebinarsLive and archived sessions to learn about CK-12

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/overview/
Title: CK-12 Resources

Search URL Search Domain Scan URL

URL: https://www.ck12.org/conceptmap/
Title: Concept Map

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/testimonials/
Title: Testimonials

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/mission/
Title: CK-12 Mission

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/team/
Title: Meet the Team

Search URL Search Domain Scan URL

URL: https://ck12support.zendesk.com/hc/en-us
Title: CK-12 Helpdesk

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/flexlets/
Title: Pick a Subject

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/about/donate/?source=ck12_top_nav
Title: Donate

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/about/fbbrowse/
Title: Browse FlexBooks

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/partners/
Title: Partners

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/press/
Title: Press

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/careers/
Title: Careers

Search URL Search Domain Scan URL

URL: https://status.ck12.org/
Title: Status

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/security/
Title: Security

Search URL Search Domain Scan URL

URL: https://ck12foundation.medium.com/
Title: Blog

Search URL Search Domain Scan URL

URL: https://www.ck12.org/map/
Title: CK-12 Usage Map

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/certified-trainer/
Title: Certified Trainer

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/contact-us/
Title: Contact Us

Search URL Search Domain Scan URL

URL: https://www.ck12.org/college/
Title: College FlexBooks

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/tools-and-apps/
Title: Tools and Apps

Search URL Search Domain Scan URL

URL: https://www.facebook.com/CK12Foundation

Search URL Search Domain Scan URL

URL: https://twitter.com/CK12Foundation

Search URL Search Domain Scan URL

URL: https://www.linkedin.com/company/75810

Search URL Search Domain Scan URL

URL: http://www.pinterest.com/ck12foundation/

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/terms-of-use/
Title: Terms of Use

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/privacy-policy/
Title: Privacy

Search URL Search Domain Scan URL

URL: https://www.ck12.org/pages/attribution-guidelines/
Title: Attribution Guide

Search URL Search Domain Scan URL

URL: https://www.ck12info.org/curriculum-materials-license/

Search URL Search Domain Scan URL

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

http://flexbooks.ck12.org/ HTTP 301
https://flexbooks.ck12.org/ HTTP 301
https://flexbooks.ck12.org/flexbooks/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

137 HTTP transactions
11 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2

200

Primary Request / Show response
flexbooks.ck12.org/flexbooks/
Redirect Chain

http://flexbooks.ck12.org/
https://flexbooks.ck12.org/
https://flexbooks.ck12.org/flexbooks/

9 KB
4 KB

198ms
198ms

Document
text/html

2600:9000:2016:9e00:8:f05f:c540:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL

https://flexbooks.ck12.org/flexbooks/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:2016:9e00:8:f05f:c540:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Apache/2.4.41 (Ubuntu) /

Resource Hash

b698c6ec7fd6f5a963b4a67a22ffbcd8bf2dd5aa902b0eaf2c04625469635e68

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors 'self' https://*.ck12.org; report-uri https://csp-report.ck12.org; report-to ck12-csp-endpoint;
Strict-Transport-Security	max-age=31536000; includeSubDomains;
X-Content-Type-Options	nosniff

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36
accept-language: de-DE,de;q=0.9

Response headers

alt-svc: h3=":443"; ma=86400
content-encoding: gzip
content-length: 3281
content-security-policy: frame-ancestors 'self' https://*.ck12.org; report-uri https://csp-report.ck12.org; report-to ck12-csp-endpoint;
content-type: text/html; charset=utf-8
date: Fri, 01 Dec 2023 03:59:11 GMT
referrer-policy: strict-origin-when-cross-origin
report-to: { "group": "ck12-csp-endpoint","max_age": 86400,"endpoints": [{ "url": " https://csp-report.ck12.org" }] }
reporting-endpoints: ck12-csp-endpoint="https://csp-report.ck12.org"
server: Apache/2.4.41 (Ubuntu)
strict-transport-security: max-age=31536000; includeSubDomains;
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Request headers

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Response headers

date: Sat, 28 Oct 2023 08:39:03 GMT
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AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL

https://www.ck12.org/auth/get/info/my

Requested by

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Protocol

Security

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Server

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Software

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Request headers

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Response headers

date: Fri, 01 Dec 2023 02:22:50 GMT
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42 KB 40ms
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AMAZON-02

General

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Show headers Download Go to

Full URL: https://static2.ck12.org/media/build-20231129233037/course-book-app/dist/ck12-resources/225e16877b6ec190031cc8e8df5dac6a.ttf
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Request headers

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Response headers

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135 KB 51ms
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AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://flexbooks.ck12.org/media/images/courses/hero_interface_student.png
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Request headers

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Response headers

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AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://flexbooks.ck12.org/media/images/courses/engageStudent.svg
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Request headers

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Response headers

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AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://flexbooks.ck12.org/media/images/courses/interfaceStudent.svg
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Request headers

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Response headers

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AMAZON-02

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Show headers Download Go to Show image

Full URL: https://flexbooks.ck12.org/media/images/courses/personalizeStudent.svg
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Request headers

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Response headers

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image/png 2600:9000:2016:9e00:8:f05f:c540:93a1
AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://flexbooks.ck12.org/media/images/logo_120.png
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Request headers

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Response headers

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GET
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image/svg+xml

General

Check archive.org

Show headers Download Go to Show image

Full URL: data:truncated
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Server: -, , ASN (),
Reverse DNS
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Request headers

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Response headers

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GET
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848 B 46ms
46ms Fetch
application/json 2600:9000:2016:9e00:8:f05f:c540:93a1
AMAZON-02

General

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Show headers Download Go to

Full URL

https://flexbooks.ck12.org/env.json

Requested by

Host: static2.ck12.org
URL: https://static2.ck12.org/media/build-20231129233037/course-book-app/dist/8541.js

Protocol

Security

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Software

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Resource Hash

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Request headers

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Response headers

date: Fri, 01 Dec 2023 02:26:24 GMT
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GET
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94ms Script
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General

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Show headers Download Go to

Full URL

https://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit

Requested by

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Protocol

Security

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Response headers

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x-content-type-options: nosniff
server: ESF
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GET
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848 B 43ms
43ms Fetch
application/json 2600:9000:2016:9e00:8:f05f:c540:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL

https://flexbooks.ck12.org/env.json

Requested by

Host: static2.ck12.org
URL: https://static2.ck12.org/media/build-20231129233037/course-book-app/dist/6488.js

Protocol

Security

QUIC, , AES_128_GCM

Server

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Software

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Request headers

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Referer: https://flexbooks.ck12.org/flexbooks/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

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GET
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static.ck12.org/testimonial/ 38 KB
6 KB 48ms
48ms XHR
application/json 2600:9000:2016:e200:1f:8b19:b780:93a1
AMAZON-02

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Show headers Download Go to

Full URL: https://static.ck12.org/testimonial/unified-browse-navigation.json
Requested by: Host: static2.ck12.org
URL: https://static2.ck12.org/media/build-20231129233037/course-book-app/dist/5831.js
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Request headers

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Full URL

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Full URL

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Show headers Download Go to

Full URL

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General

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Show headers Download Go to

Full URL

https://flexbooks.ck12.org/dexter/record/event

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GOOGLE

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https://www.google-analytics.com/plugins/ua/linkid.js

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H2 200 collect Show response
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x-amz-cf-pop: HAM50-C2
x-amz-server-side-encryption: AES256
x-cache: Miss from cloudfront
alt-svc: h3=":443"; ma=86400
reporting-endpoints: ck12-csp-endpoint="https://csp-report.ck12.org"
referrer-policy: strict-origin-when-cross-origin
last-modified: Tue, 28 Nov 2023 23:22:49 GMT
server: AmazonS3
etag: W/"4b8d2957860f0c1d3bca12276d1d5d3f"
vary: Accept-Encoding
report-to: { "group": "ck12-csp-endpoint","max_age": 86400,"endpoints": [{ "url": " https://csp-report.ck12.org" }] }
content-type: text/javascript
cache-control: max-age=2630000
x-amz-cf-id: 5z0Ki0DhdHG_87zEySuLJr_ZjQmIwXQ-QOxCrv604rJ3c6E4R1j5ow==

GET
H2 200 bundle.es5.min.js Show response
browser.sentry-cdn.com/7.84.0/ 76 KB
24 KB 28ms
28ms Script
application/javascript 2a04:4e42:600::729
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL

https://browser.sentry-cdn.com/7.84.0/bundle.es5.min.js

Requested by

Host: js.sentry-cdn.com
URL: https://js.sentry-cdn.com/131eeb0def9f43ef9c76f1c2d143cb31.min.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

2a04:4e42:600::729 , United States, ASN54113 (FASTLY, US),

Reverse DNS

Software

Fastly /

Resource Hash

90ad781f2b8fa5350e10534a911dc3aadd5a4f98f2bd94b82e920d3d8115ae32

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains

Request headers

Referer: https://flexbooks.ck12.org/
Origin: https://flexbooks.ck12.org
accept-language: de-DE,de;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

date: Fri, 01 Dec 2023 03:59:13 GMT
content-encoding: gzip
strict-transport-security: max-age=31536000; includeSubDomains
last-modified: Thu, 30 Nov 2023 11:27:45 GMT
server: Fastly
age: 54343
etag: "3070dd6301db8928449e60dfdcfe385e"
vary: Accept-Encoding
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=31536000
accept-ranges: bytes
content-length: 24689
expires: Fri, 29 Nov 2024 12:53:30 GMT

GET
H2 200 ck12logo.svg
static.ck12.org/banners/assets/givingtuesday-2022/ 2 KB
2 KB 466ms
465ms Image
image/svg+xml 2600:9000:2016:e200:1f:8b19:b780:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://static.ck12.org/banners/assets/givingtuesday-2022/ck12logo.svg
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2016:e200:1f:8b19:b780:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 5cc69141a80411be7fb7a083a609959c22e3353a2d78d9a6066bd9eaf873e5fd

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://flexbooks.ck12.org/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

x-amz-version-id: HSFjIXGwMJ0eqS_xvBe.3g6iezaoeMlm
content-encoding: gzip
via: 1.1 2e44a3b2c1d0f478404fb20d9971a778.cloudfront.net (CloudFront)
date: Fri, 01 Dec 2023 03:59:15 GMT
last-modified: Fri, 18 Nov 2022 06:26:36 GMT
server: AmazonS3
x-amz-cf-pop: HAM50-C2
etag: W/"a5078c0cc5a908194069a8f66da41361"
vary: Accept-Encoding
x-cache: RefreshHit from cloudfront
content-type: image/svg+xml
x-amz-cf-id: 5aJbE66uYpENyE4kkrcbPKnNOzEhgtoGGYYmGMBWHzz2Xyva8HL_4Q==

GET
H2 200 gtlogo.png
static.ck12.org/banners/assets/givingtuesday-2022/ 18 KB
18 KB 460ms
460ms Image
image/png 2600:9000:2016:e200:1f:8b19:b780:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://static.ck12.org/banners/assets/givingtuesday-2022/gtlogo.png
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2016:e200:1f:8b19:b780:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 32524a81b84331f32b01e83f1e4c6b0d70c7da79dd20620c0cf0af9bb383780b

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://flexbooks.ck12.org/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

x-amz-version-id: 9nbCiAF023yZc43ENWHHL69f4zkrr1Iw
date: Fri, 01 Dec 2023 03:59:15 GMT
via: 1.1 2e44a3b2c1d0f478404fb20d9971a778.cloudfront.net (CloudFront)
last-modified: Fri, 18 Nov 2022 06:22:48 GMT
server: AmazonS3
x-amz-cf-pop: HAM50-C2
etag: "70facad6c107b06ebc77a7523ff0c566"
vary: Accept-Encoding
x-cache: RefreshHit from cloudfront
content-type: image/png
accept-ranges: bytes
content-length: 18513
x-amz-cf-id: Mji9lPT9k_59J1z99spf6_nG8fZ3nwMBk1BXoNor-M0oDhldmPQgeA==

GET
H2 200 pixel.gif
www.paypalobjects.com/en_US/i/scr/ 43 B
442 B 122ms
30ms Image
image/gif 192.229.221.25
EDGECAST

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.paypalobjects.com/en_US/i/scr/pixel.gif

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

192.229.221.25 , United States, ASN15133 (EDGECAST, US),

Reverse DNS

Software

ECAcc (frc/4CBC) /

Resource Hash

2dfe28cbdb83f01c940de6a88ab86200154fd772d568035ac568664e52068363

Security Headers

Name	Value
Strict-Transport-Security	max-age=63072000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://flexbooks.ck12.org/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

date: Fri, 01 Dec 2023 03:59:14 GMT
strict-transport-security: max-age=63072000; includeSubDomains; preload
x-content-type-options: nosniff
x-cache: HIT
paypal-debug-id: 44dbe3fea9359
dc: ccg11-origin-www-1.paypal.com
content-length: 43
last-modified: Fri, 16 Aug 2019 04:57:34 GMT
server: ECAcc (frc/4CBC)
traceparent: 00-000000000000000000044dbe3fea9359-d84c23b7606d6317-01
etag: "5d5637be-2b"
content-type: image/gif
cache-control: s-maxage=31536000, public,max-age=3600
accept-ranges: bytes
timing-allow-origin: https://www.paypal.com,https://www.sandbox.paypal.com
expires: Fri, 01 Dec 2023 04:59:14 GMT

Verdicts & Comments Add Verdict or Comment

124 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

9 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

Domain/Path	Expires	Name / Value
flexbooks.ck12.org/	1970-01-20 16:38:09	Name: X-Ck12-Cdn-Version Value: 202311300021
.ck12.org/	1970-01-20 16:36:44	Name: dexterjsSessionID Value: uckNhfd05Op0B3ztQfMjHxOqU
.ck12.org/	1970-01-20 20:55:55	Name: dexterjsVisitorID Value: 562We3XxG3XHNqbrmlMfjRoz9
.ck12.org/	1970-01-20 16:36:43	Name: flxweb_role Value: student
.ck12.org/	1970-01-20 18:46:19	Name: _gcl_au Value: 1.1.1154174192.1701403152
.ck12.org/	1970-01-21 02:12:43	Name: _ga_7PBE4L0PZZ Value: GS1.1.1701403152.1.0.1701403152.0.0.0
.ck12.org/	1970-01-21 02:12:43	Name: _ga Value: GA1.2.1518142511.1701403153
.ck12.org/	1970-01-20 16:38:09	Name: _gid Value: GA1.2.1041649229.1701403153
.ck12.org/	1970-01-20 16:36:43	Name: _gat Value: 1

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header	Value
Content-Security-Policy	frame-ancestors 'self' https://*.ck12.org; report-uri https://csp-report.ck12.org; report-to ck12-csp-endpoint;
Strict-Transport-Security	max-age=31536000; includeSubDomains;
X-Content-Type-Options	nosniff

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

accounts.google.com
browser.sentry-cdn.com
cdn.mxpnl.com
d3lkjnwva6z405.cloudfront.net
dr282zn36sxxg.cloudfront.net
flexbooks.ck12.org
fonts.gstatic.com
js.sentry-cdn.com
region1.google-analytics.com
static.ck12.org
static1.ck12.org
static2.ck12.org
static3.ck12.org
tinymce.ck12.org
translate.google.com
translate.googleapis.com
www.ck12.org
www.google-analytics.com
www.google.com
www.googletagmanager.com
www.gstatic.com
www.paypalobjects.com
18.66.122.99
192.229.221.25
2001:4860:4802:34::36
2600:1901:0:498c::
2600:9000:2016:200:8:f05f:c540:93a1
2600:9000:2016:9200:8:f05f:c540:93a1
2600:9000:2016:9e00:8:f05f:c540:93a1
2600:9000:2016:a000:8:f05f:c540:93a1
2600:9000:2016:e200:1f:8b19:b780:93a1
2600:9000:2016:ec00:12:aac7:4140:93a1
2600:9000:2070:1200:f:a35f:3100:93a1
2600:9000:2156:ee00:8:f05f:c540:93a1
2a00:1450:4001:803::200e
2a00:1450:4001:808::200d
2a00:1450:4001:810::2008
2a00:1450:4001:828::2003
2a00:1450:4001:828::2004
2a00:1450:4001:828::200a
2a00:1450:4001:830::200e
2a00:1450:4001:831::2003
2a04:4e42:600::729
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flexbooks.ck12.org Open in urlscan Pro 2600:9000:2016:9e00:8:f05f:c540:93a1 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

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Page Title

Page URL History Show full URLs

Detected technologies

Page Statistics

137 Requests

100 %HTTPS

90 %IPv6

10 Domains

22 Subdomains

22 IPs

2 Countries

2745 kBTransfer

5256 kBSize

9 Cookies

68 Outgoing links

Page URL History

Redirected requests

137 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 11 data transactions

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flexbooks.ck12.org Open in urlscan Pro
2600:9000:2016:9e00:8:f05f:c540:93a1 Public Scan

Screenshot
Live screenshot

Full Image

137
Requests

100 %
HTTPS

90 %
IPv6

10
Domains

22
Subdomains

22
IPs

2
Countries

2745 kB
Transfer

5256 kB
Size

9
Cookies

137 HTTP transactions
11 data transactions