www.calhoun.io
Open in
urlscan Pro
2a05:d014:275:cb02:66df:50b:6e56:a6bf
Public Scan
Effective URL: https://www.calhoun.io/
Submission: On May 28 via api from GB — Scanned from GB
Summary
TLS certificate: Issued by R3 on May 21st 2022. Valid for: 3 months.
This is the only time www.calhoun.io was scanned on urlscan.io!
urlscan.io Verdict: No classification
Domain & IP information
IP Address | AS Autonomous System | ||
---|---|---|---|
2 4 | 2a05:d014:275... 2a05:d014:275:cb02:66df:50b:6e56:a6bf | 16509 (AMAZON-02) (AMAZON-02) | |
1 | 2a00:1450:400... 2a00:1450:4001:830::200a | 15169 (GOOGLE) (GOOGLE) | |
4 | 143.204.214.86 143.204.214.86 | 16509 (AMAZON-02) (AMAZON-02) | |
1 | 2a04:fa87:fff... 2a04:fa87:fffe::c000:4902 | 2635 (AUTOMATTIC) (AUTOMATTIC) | |
4 | 2606:2800:234... 2606:2800:234:46c:e8b:1e2f:2bd:694 | 15133 (EDGECAST) (EDGECAST) | |
1 | 2a00:1450:400... 2a00:1450:4001:811::2003 | 15169 (GOOGLE) (GOOGLE) | |
3 | 2a00:1450:400... 2a00:1450:4001:831::200e | 15169 (GOOGLE) (GOOGLE) | |
2 | 104.244.42.72 104.244.42.72 | 13414 (TWITTER) (TWITTER) | |
1 | 2a00:1450:400... 2a00:1450:400c:c07::9d | 15169 (GOOGLE) (GOOGLE) | |
1 | 2606:2800:134... 2606:2800:134:fa2:1627:1fe:edb:1665 | 15133 (EDGECAST) (EDGECAST) | |
20 | 11 |
ASN16509 (AMAZON-02, US)
calhoun.io | |
www.calhoun.io |
ASN16509 (AMAZON-02, US)
PTR: server-143-204-214-86.fra53.r.cloudfront.net
d33wubrfki0l68.cloudfront.net |
ASN15169 (GOOGLE, US)
www.google-analytics.com |
ASN15133 (EDGECAST, US)
cdn.syndication.twimg.com |
Apex Domain Subdomains |
Transfer | |
---|---|---|
6 |
twitter.com
platform.twitter.com — Cisco Umbrella Rank: 643 syndication.twitter.com — Cisco Umbrella Rank: 881 |
150 KB |
4 |
cloudfront.net
d33wubrfki0l68.cloudfront.net |
173 KB |
4 |
calhoun.io
2 redirects
calhoun.io www.calhoun.io |
121 KB |
3 |
google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 35 |
21 KB |
1 |
twimg.com
cdn.syndication.twimg.com — Cisco Umbrella Rank: 1417 |
732 B |
1 |
doubleclick.net
stats.g.doubleclick.net — Cisco Umbrella Rank: 84 |
438 B |
1 |
gstatic.com
fonts.gstatic.com |
12 KB |
1 |
gravatar.com
www.gravatar.com — Cisco Umbrella Rank: 3760 |
6 KB |
1 |
googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 42 |
860 B |
20 | 9 |
Domain | Requested by | |
---|---|---|
4 | platform.twitter.com |
www.calhoun.io
platform.twitter.com |
4 | d33wubrfki0l68.cloudfront.net |
www.calhoun.io
|
3 | www.google-analytics.com |
www.calhoun.io
www.google-analytics.com |
2 | syndication.twitter.com |
platform.twitter.com
|
2 | www.calhoun.io |
www.calhoun.io
|
2 | calhoun.io | 2 redirects |
1 | cdn.syndication.twimg.com |
platform.twitter.com
|
1 | stats.g.doubleclick.net |
www.google-analytics.com
|
1 | fonts.gstatic.com |
fonts.googleapis.com
|
1 | www.gravatar.com |
www.calhoun.io
|
1 | fonts.googleapis.com |
www.calhoun.io
|
20 | 11 |
This site contains links to these domains. Also see Links.
Domain |
---|
courses.calhoun.io |
www.usegolang.com |
gophercises.com |
algorithmswithgo.com |
Subject Issuer | Validity | Valid | |
---|---|---|---|
calhoun.io R3 |
2022-05-21 - 2022-08-19 |
3 months | crt.sh |
upload.video.google.com GTS CA 1C3 |
2022-05-04 - 2022-07-27 |
3 months | crt.sh |
*.cloudfront.net Amazon |
2022-02-01 - 2023-01-31 |
a year | crt.sh |
*.gravatar.com Sectigo RSA Domain Validation Secure Server CA |
2020-08-14 - 2022-11-16 |
2 years | crt.sh |
*.twimg.com DigiCert TLS RSA SHA256 2020 CA1 |
2021-10-20 - 2022-10-19 |
a year | crt.sh |
*.gstatic.com GTS CA 1C3 |
2022-05-04 - 2022-07-27 |
3 months | crt.sh |
*.google-analytics.com GTS CA 1C3 |
2022-05-04 - 2022-07-27 |
3 months | crt.sh |
syndication.twitter.com DigiCert TLS RSA SHA256 2020 CA1 |
2021-10-31 - 2022-10-30 |
a year | crt.sh |
*.g.doubleclick.net GTS CA 1C3 |
2022-05-04 - 2022-07-27 |
3 months | crt.sh |
This page contains 3 frames:
Primary Page:
https://www.calhoun.io/
Frame ID: 81406B2D0D5F3677F7331B5D44BF31FA
Requests: 16 HTTP requests in this frame
Frame:
https://platform.twitter.com/widgets/widget_iframe.bbd13993eb53d3a11ac08f5e8cf9d6a4.html?origin=https%3A%2F%2Fwww.calhoun.io
Frame ID: 734CB415EE526B65ADF76C16187028AD
Requests: 2 HTTP requests in this frame
Frame:
https://platform.twitter.com/widgets/follow_button.bbd13993eb53d3a11ac08f5e8cf9d6a4.en.html
Frame ID: 20E28018A55439F5DBCCF7A1AC65D178
Requests: 3 HTTP requests in this frame
Screenshot
Page Title
Calhoun.io - Go for EveryonePage URL History Show full URLs
-
http://calhoun.io/
HTTP 301
https://calhoun.io/ HTTP 301
https://www.calhoun.io/ Page URL
Detected technologies
Google Analytics (Analytics) ExpandDetected patterns
- google-analytics\.com/(?:ga|urchin|analytics)\.js
Google Font API (Font Scripts) Expand
Detected patterns
- <link[^>]* href=[^>]+fonts\.(?:googleapis|google)\.com
Twitter (Widgets) Expand
Detected patterns
- //platform\.twitter\.com/widgets\.js
Page Statistics
4 Outgoing links
These are links going to different origins than the main page.
Title: Course Login
Search URL Search Domain Scan URL
Title: Learn Web Development with Go
Search URL Search Domain Scan URL
Title: Practice Go with Gophercises
Search URL Search Domain Scan URL
Title: Algorithms with Go
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://calhoun.io/
HTTP 301
https://calhoun.io/ HTTP 301
https://www.calhoun.io/ Page URL
Redirected requests
There were HTTP redirect chains for the following requests:
20 HTTP transactions
Method Protocol |
Resource Path |
Size x-fer |
Type MIME-Type |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
GET H2 |
Primary Request
/
www.calhoun.io/ Redirect Chain
|
24 KB 7 KB |
Document
text/html |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
Redirect headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
css
fonts.googleapis.com/ |
754 B 860 B |
Stylesheet
text/css |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
styles.css
d33wubrfki0l68.cloudfront.net/css/d640a13fbc58114d1010e8299cf379bb6e74f244/css/ |
18 KB 5 KB |
Stylesheet
text/css |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
avatar.png
d33wubrfki0l68.cloudfront.net/86966651b63272f0485ea4259a30f5d0985a4d66/21cd2/img/ |
547 B 916 B |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
using_postgresql_with_go.png
d33wubrfki0l68.cloudfront.net/e0b743ddcf68c6414c1f9385dcf0b4dfb4bde95c/0ce1f/img/ |
79 KB 80 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
lets_learn_algorithms.png
d33wubrfki0l68.cloudfront.net/01e7e094b6280ac158e1840cdf1b2cf4d99e5867/64396/img/ |
87 KB 87 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
7f6933474b11029553700ca296b0cd48
www.gravatar.com/avatar/ |
6 KB 6 KB |
Image
image/jpeg |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
widgets.js
platform.twitter.com/ |
97 KB 29 KB |
Script
application/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
truck_sm.jpg
www.calhoun.io/img/ |
113 KB 114 KB |
Image
image/jpeg |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
CSR84z9ShvucWzsMKyhdTOI.woff2
fonts.gstatic.com/s/lusitana/v13/ |
11 KB 12 KB |
Font
font/woff2 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
analytics.js
www.google-analytics.com/ |
49 KB 20 KB |
Script
text/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
widget_iframe.bbd13993eb53d3a11ac08f5e8cf9d6a4.html
platform.twitter.com/widgets/ Frame 734C |
319 KB 104 KB |
Document
text/html |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
settings
syndication.twitter.com/ Frame 734C |
278 B 460 B |
Fetch
application/json |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
linkid.js
www.google-analytics.com/plugins/ua/ |
2 KB 1 KB |
Script
text/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
POST H2 |
collect
www.google-analytics.com/j/ |
4 B 208 B |
XHR
text/plain |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
POST H2 |
collect
stats.g.doubleclick.net/j/ |
1 B 438 B |
XHR
text/plain |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
button.e878ad6ba18f0bdda53d6861059b0edd.js
platform.twitter.com/js/ |
7 KB 3 KB |
Script
application/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
follow_button.bbd13993eb53d3a11ac08f5e8cf9d6a4.en.html
platform.twitter.com/widgets/ Frame 20E2 |
36 KB 14 KB |
Document
text/html |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
jot
syndication.twitter.com/i/ |
43 B 357 B |
Image
image/gif |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET DATA |
truncated
/ Frame 20E2 |
822 B 0 |
Image
image/svg+xml |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
info.json
cdn.syndication.twimg.com/widgets/followbutton/ Frame 20E2 |
234 B 732 B |
Script
application/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
Verdicts & Comments Add Verdict or Comment
19 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.
object| 0 object| 1 object| 2 object| oncontextlost object| oncontextrestored function| structuredClone object| launchQueue object| onbeforematch function| getScreenDetails object| navigation string| GoogleAnalyticsObject function| ga object| __twttrll object| twttr object| __twttr object| google_tag_data object| gaplugins object| gaGlobal object| gaData3 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 |
---|---|---|
.calhoun.io/ | Name: _ga Value: GA1.2.342125846.1653754091 |
|
.calhoun.io/ | Name: _gid Value: GA1.2.1018538091.1653754091 |
|
.calhoun.io/ | 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 |
---|---|
Strict-Transport-Security | max-age=31536000 |
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.
calhoun.io
cdn.syndication.twimg.com
d33wubrfki0l68.cloudfront.net
fonts.googleapis.com
fonts.gstatic.com
platform.twitter.com
stats.g.doubleclick.net
syndication.twitter.com
www.calhoun.io
www.google-analytics.com
www.gravatar.com
104.244.42.72
143.204.214.86
2606:2800:134:fa2:1627:1fe:edb:1665
2606:2800:234:46c:e8b:1e2f:2bd:694
2a00:1450:4001:811::2003
2a00:1450:4001:830::200a
2a00:1450:4001:831::200e
2a00:1450:400c:c07::9d
2a04:fa87:fffe::c000:4902
2a05:d014:275:cb02:66df:50b:6e56:a6bf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