horstmann.com Open in urlscan Pro
68.66.226.114 Public Scan

Go To Rescan
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Submitted URL:
http://horstmann.com/
Effective URL:
https://horstmann.com/
Submission Tags: tranco_l324
Submission: On March 26 via api (March 26th 2024, 5:00:15 am UTC) from DE — Scanned from DE

Summary HTTP 8 Redirects Links 11 Behaviour Indicators

Summary

This website contacted 1 IPs in 1 countries across 1 domains to perform 8 HTTP transactions. The main IP is 68.66.226.114, located in United States and belongs to A2HOSTING, US. The main domain is horstmann.com.
TLS certificate: Issued by R3 on January 25th 2024. Valid for: 3 months.

This is the only time horstmann.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address		AS Autonomous System
8	68.66.226.114 68.66.226.114		55293 (A2HOSTING) (A2HOSTING)
8	1

8 68.66.226.114 (United States)

ASN55293 (A2HOSTING, US)
PTR: az1-ss99.a2hosting.com

horstmann.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
8	horstmann.com horstmann.com	925 KB
8	1

	Domain	Requested by
8	horstmann.com	horstmann.com
8	1

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

Domain
www.uni-kiel.de
www.kiel.de
www.syr.edu
www.umich.edu
sjsu.edu
foojay.social
javaalmanac.io
scholarworks.sjsu.edu
codecheck.io
gridworld.info
en.wikipedia.org

Subject Issuer	Validity	Valid
horstmann.com R3	`2024-01-25` - `2024-04-24`	3 months	crt.sh

This page contains 1 frames:

Primary Page: https://horstmann.com/
Frame ID: C68D16FF5AA0F2F76447FAB6A9613933
Requests: 8 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Cay Horstmann's Home Page

Page URL History Show full URLs

http://horstmann.com/ HTTP 307
https://horstmann.com/ Page URL

Page Statistics

8
Requests

100 %
HTTPS

0 %
IPv6

1
Domains

1
Subdomains

1
IPs

1
Countries

925 kB
Transfer

2374 kB
Size

0
Cookies

11 Outgoing links

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

URL: http://www.uni-kiel.de/
Title: Christian-Albrechts-Universität

Search URL Search Domain Scan URL

URL: http://www.kiel.de/
Title: Kiel

Search URL Search Domain Scan URL

URL: http://www.syr.edu/
Title: Syracuse University

Search URL Search Domain Scan URL

URL: http://www.umich.edu/
Title: University of Michigan

Search URL Search Domain Scan URL

URL: http://sjsu.edu/
Title: San Jose State University

Search URL Search Domain Scan URL

URL: https://foojay.social/@cayhorstmann
Title: My sole social network presence

Search URL Search Domain Scan URL

URL: https://javaalmanac.io/features
Title: Java Almanac

Search URL Search Domain Scan URL

URL: https://scholarworks.sjsu.edu/erfa_bios/356/
Title: My “emeritus faculty” page

Search URL Search Domain Scan URL

URL: https://codecheck.io/
Title: CodeCheck

Search URL Search Domain Scan URL

URL: http://gridworld.info/
Title: GridWorld

Search URL Search Domain Scan URL

URL: https://en.wikipedia.org/wiki/ChiWriter
Title: ChiWriter, an ancient word processor

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://horstmann.com/ HTTP 307
https://horstmann.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

8 HTTP transactions
0 data transactions

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

GET
H/1.1

200
OK

Primary Request / Show response
horstmann.com/
Redirect Chain

http://horstmann.com/
https://horstmann.com/

7 KB
3 KB

864ms
186ms

Document
text/html

68.66.226.114
A2HOSTING

General

Check archive.org

Show headers Download Go to

Full URL

https://horstmann.com/

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_256_GCM

Server

68.66.226.114 , United States, ASN55293 (A2HOSTING, US),

Reverse DNS

az1-ss99.a2hosting.com

Software

Apache /

Resource Hash

c997a43e188988140a56a8a82160207895274e296df2358f9792a946dcfdbd71

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors https://* file://*
Strict-Transport-Security	max-age=63072000; 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/123.0.0.0 Safari/537.36
accept-language: de-DE,de;q=0.9

Response headers

Accept-Ranges: bytes
Access-Control-Allow-Origin: *
Cache-Control: max-age=3600, must-revalidate
Connection: Keep-Alive
Content-Encoding: gzip
Content-Length: 2639
Content-Security-Policy: frame-ancestors https://* file://*
Content-Type: text/html; charset=utf-8
Date: Tue, 26 Mar 2024 05:00:10 GMT
Keep-Alive: timeout=3, max=500
Last-Modified: Sun, 24 Mar 2024 04:30:59 GMT
Server: Apache
Strict-Transport-Security: max-age=63072000; includeSubDomains
Vary: Accept-Encoding
X-Content-Type-Options: nosniff

Redirect headers

Location: https://horstmann.com/
Non-Authoritative-Reason: HttpsUpgrades

GET
H/1.1 200
OK styles.css
horstmann.com/ 22 KB
12 KB 187ms
187ms Stylesheet
text/css 68.66.226.114
A2HOSTING

General

Check archive.org

Show headers Download Go to

Full URL

https://horstmann.com/styles.css

Requested by

Host: horstmann.com
URL: https://horstmann.com/

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_256_GCM

Server

68.66.226.114 , United States, ASN55293 (A2HOSTING, US),

Reverse DNS

az1-ss99.a2hosting.com

Software

Apache /

Resource Hash

95d5f9a5df986301c5f3e9233c33f500479b0253e8f772661f400546909a2dd3

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors https://* file://*
Strict-Transport-Security	max-age=63072000; includeSubDomains
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://horstmann.com/
accept-language: de-DE,de;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

Date: Tue, 26 Mar 2024 05:00:10 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Content-Type-Options: nosniff
Content-Security-Policy: frame-ancestors https://* file://*
Last-Modified: Tue, 12 Mar 2024 15:34:48 GMT
Server: Apache
Content-Encoding: gzip
Vary: Accept-Encoding
Content-Type: text/css
Access-Control-Allow-Origin: *
Cache-Control: max-age=604800, public
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=3, max=499
Content-Length: 11801

GET
H/1.1 200
OK NotoSans-Regular.ttf
horstmann.com/fonts/ 543 KB
544 KB 186ms
186ms Font
application/x-font-ttf 68.66.226.114
A2HOSTING

General

Check archive.org

Show headers Download Go to

Full URL

https://horstmann.com/fonts/NotoSans-Regular.ttf

Requested by

Host: horstmann.com
URL: https://horstmann.com/styles.css

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_256_GCM

Server

68.66.226.114 , United States, ASN55293 (A2HOSTING, US),

Reverse DNS

az1-ss99.a2hosting.com

Software

Apache /

Resource Hash

2ec33f84606cbaa0a1a944488e14f97faf2f6a25ecdd8354f5358f06da13c7d9

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors https://* file://*
Strict-Transport-Security	max-age=63072000; includeSubDomains
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://horstmann.com/styles.css
Origin: https://horstmann.com
accept-language: de-DE,de;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

Date: Tue, 26 Mar 2024 05:00:11 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Content-Type-Options: nosniff
Content-Security-Policy: frame-ancestors https://* file://*
Last-Modified: Thu, 05 Oct 2023 22:39:16 GMT
Server: Apache
Content-Type: application/x-font-ttf
Access-Control-Allow-Origin: *
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=3, max=498
Content-Length: 556216

GET
H/1.1 200
OK PTSans-Bold.ttf
horstmann.com/fonts/ 282 KB
282 KB 547ms
184ms Font
application/x-font-ttf 68.66.226.114
A2HOSTING

General

Check archive.org

Show headers Download Go to

Full URL

https://horstmann.com/fonts/PTSans-Bold.ttf

Requested by

Host: horstmann.com
URL: https://horstmann.com/styles.css

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_256_GCM

Server

68.66.226.114 , United States, ASN55293 (A2HOSTING, US),

Reverse DNS

az1-ss99.a2hosting.com

Software

Apache /

Resource Hash

6233f84e139f226690649b3105c077b0f87ec24a23ca4a18ada298c962a06f4f

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors https://* file://*
Strict-Transport-Security	max-age=63072000; includeSubDomains
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://horstmann.com/styles.css
Origin: https://horstmann.com
accept-language: de-DE,de;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

Date: Tue, 26 Mar 2024 05:00:11 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Content-Type-Options: nosniff
Content-Security-Policy: frame-ancestors https://* file://*
Last-Modified: Mon, 20 Sep 2010 22:00:00 GMT
Server: Apache
Content-Type: application/x-font-ttf
Access-Control-Allow-Origin: *
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=3, max=500
Content-Length: 288340

GET
H/1.1 200
OK NotoSansMono-VariableFont_wdth,wght.ttf
horstmann.com/fonts/ 1 MB
0 549ms
186ms Font
application/x-font-ttf 68.66.226.114
A2HOSTING

General

Check archive.org

Show headers Download Go to

Full URL

https://horstmann.com/fonts/NotoSansMono-VariableFont_wdth,wght.ttf

Requested by

Host: horstmann.com
URL: https://horstmann.com/styles.css

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_256_GCM

Server

68.66.226.114 , United States, ASN55293 (A2HOSTING, US),

Reverse DNS

az1-ss99.a2hosting.com

Software

Apache /

Resource Hash

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors https://* file://*
Strict-Transport-Security	max-age=63072000; includeSubDomains
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://horstmann.com/styles.css
Origin: https://horstmann.com
accept-language: de-DE,de;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

Date: Tue, 26 Mar 2024 05:00:11 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Content-Type-Options: nosniff
Content-Security-Policy: frame-ancestors https://* file://*
Last-Modified: Wed, 25 Oct 2023 17:41:56 GMT
Server: Apache
Content-Type: application/x-font-ttf
Access-Control-Allow-Origin: *
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=3, max=500
Content-Length: 1707908

GET
H/1.1 200
OK cay-rowing.gif
horstmann.com/images/ 66 KB
66 KB 553ms
187ms Image
image/gif 68.66.226.114
A2HOSTING

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://horstmann.com/images/cay-rowing.gif

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_256_GCM

Server

68.66.226.114 , United States, ASN55293 (A2HOSTING, US),

Reverse DNS

az1-ss99.a2hosting.com

Software

Apache /

Resource Hash

90c6a464d7acb2302f8f38a5e08e9bb863a583f14e5b0322ed639e85bfa2161d

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors https://* file://*
Strict-Transport-Security	max-age=63072000; includeSubDomains
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://horstmann.com/
accept-language: de-DE,de;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

Date: Tue, 26 Mar 2024 05:00:11 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Content-Type-Options: nosniff
Content-Security-Policy: frame-ancestors https://* file://*
Last-Modified: Mon, 01 Mar 2004 09:57:00 GMT
Server: Apache
Content-Encoding: gzip
Vary: Accept-Encoding
Transfer-Encoding: chunked
Content-Type: image/gif
Access-Control-Allow-Origin: *
Cache-Control: max-age=604800, public
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=3, max=500

GET
H/1.1 200
OK violet.jpg
horstmann.com/images/ 2 KB
3 KB 551ms
185ms Image
image/jpeg 68.66.226.114
A2HOSTING

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://horstmann.com/images/violet.jpg

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_256_GCM

Server

68.66.226.114 , United States, ASN55293 (A2HOSTING, US),

Reverse DNS

az1-ss99.a2hosting.com

Software

Apache /

Resource Hash

0877a5d98c704d966056ad24264a5da3ce1813292626e59598aa60b29e189eb3

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors https://* file://*
Strict-Transport-Security	max-age=63072000; includeSubDomains
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://horstmann.com/
accept-language: de-DE,de;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

Date: Tue, 26 Mar 2024 05:00:11 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Content-Type-Options: nosniff
Content-Security-Policy: frame-ancestors https://* file://*
Last-Modified: Fri, 19 Sep 2003 04:00:00 GMT
Server: Apache
Content-Encoding: gzip
Vary: Accept-Encoding
Content-Type: image/jpeg
Access-Control-Allow-Origin: *
Cache-Control: max-age=604800, public
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=3, max=500
Content-Length: 2138

GET
H/1.1 200
OK favicon.ico
horstmann.com/ 15 KB
16 KB 549ms
185ms Other
image/x-icon 68.66.226.114
A2HOSTING

General

Check archive.org

Show headers Download Go to

Full URL

https://horstmann.com/favicon.ico

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_256_GCM

Server

68.66.226.114 , United States, ASN55293 (A2HOSTING, US),

Reverse DNS

az1-ss99.a2hosting.com

Software

Apache /

Resource Hash

7edb9bcd9aa49ed9fc2824484b63be92d011ca9a31815d98c46c8640f23c7242

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors https://* file://*
Strict-Transport-Security	max-age=63072000; includeSubDomains
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://horstmann.com/
accept-language: de-DE,de;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

Date: Tue, 26 Mar 2024 05:00:11 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Content-Type-Options: nosniff
Content-Security-Policy: frame-ancestors https://* file://*
Last-Modified: Sat, 26 Dec 2020 14:19:30 GMT
Server: Apache
Content-Type: image/x-icon
Access-Control-Allow-Origin: *
Cache-Control: max-age=604800, public
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=3, max=500
Content-Length: 15406

Verdicts & Comments Add Verdict or Comment

1 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| onpagereveal

0 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.

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 https://* file://*
Strict-Transport-Security	max-age=63072000; 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.

horstmann.com
68.66.226.114
0877a5d98c704d966056ad24264a5da3ce1813292626e59598aa60b29e189eb3
2ec33f84606cbaa0a1a944488e14f97faf2f6a25ecdd8354f5358f06da13c7d9
6233f84e139f226690649b3105c077b0f87ec24a23ca4a18ada298c962a06f4f
7edb9bcd9aa49ed9fc2824484b63be92d011ca9a31815d98c46c8640f23c7242
90c6a464d7acb2302f8f38a5e08e9bb863a583f14e5b0322ed639e85bfa2161d
95d5f9a5df986301c5f3e9233c33f500479b0253e8f772661f400546909a2dd3
c997a43e188988140a56a8a82160207895274e296df2358f9792a946dcfdbd71

horstmann.com Open in urlscan Pro 68.66.226.114 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Page Statistics

8 Requests

100 %HTTPS

0 %IPv6

1 Domains

1 Subdomains

1 IPs

1 Countries

925 kBTransfer

2374 kBSize

0 Cookies

11 Outgoing links

Page URL History

Redirected requests

8 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

Request headers

Response headers

Redirect headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Verdicts & Comments Add Verdict or Comment

1 JavaScript Global Variables

0 Cookies

Security Headers

Indicators

horstmann.com Open in urlscan Pro
68.66.226.114 Public Scan

Screenshot
Live screenshot

Full Image

8
Requests

100 %
HTTPS

0 %
IPv6

1
Domains

1
Subdomains

1
IPs

1
Countries

925 kB
Transfer

2374 kB
Size

0
Cookies

8 HTTP transactions
0 data transactions