www.opentheory.org - urlscan.io

Summary

This website contacted 3 IPs in 2 countries across 3 domains to perform 5 HTTP transactions. The main IP is 178.63.68.96, located in Germany and belongs to HETZNER-AS, DE. The main domain is www.opentheory.org.
TLS certificate: Issued by R11 on October 30th 2024. Valid for: 3 months.

This is the only time www.opentheory.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
3	178.63.68.96 178.63.68.96	24940 (HETZNER-AS) (HETZNER-AS)
1	2606:4700::68... 2606:4700::6812:1713	13335 (CLOUDFLAR...) (CLOUDFLARENET)
5	3

3 178.63.68.96 (Germany)

ASN24940 (HETZNER-AS, DE)
PTR: zucker.schokokeks.org

www.opentheory.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700::6812:1713 (United States)

ASN13335 (CLOUDFLARENET, US)

www.w3.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
3	opentheory.org www.opentheory.org	10 KB
1	w3.org www.w3.org — Cisco Umbrella Rank: 30063	2 KB
0	google.com Failed www.google.com Failed
5	3

	Domain	Requested by
3	www.opentheory.org	www.opentheory.org
1	www.w3.org	www.opentheory.org
0	www.google.com Failed	www.opentheory.org
5	3

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

Domain
validator.w3.org

Subject Issuer	Validity	Valid
www.opentheory.org R11	`2024-10-30` - `2025-01-28`	3 months	crt.sh
w3.org Cloudflare Inc ECC CA-3	`2024-01-26` - `2024-12-31`	a year	crt.sh

This page contains 1 frames:

Primary Page: https://www.opentheory.org/
Frame ID: 830B1E8C94AAAEAD219FFB1C2CAF0FBD
Requests: 5 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

open theory · offene theorie:

Page URL History Show full URLs

http://www.opentheory.org/ HTTP 307
https://www.opentheory.org/ Page URL

Page Statistics

5
Requests

80 %
HTTPS

50 %
IPv6

3
Domains

3
Subdomains

3
IPs

2
Countries

12 kB
Transfer

16 kB
Size

1
Cookies

1 Outgoing links

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

URL: http://validator.w3.org/check?uri=referer

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://www.opentheory.org/ HTTP 307
https://www.opentheory.org/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

5 HTTP transactions
0 data transactions

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

GET
H2

200

Primary Request / Show response
www.opentheory.org/
Redirect Chain

http://www.opentheory.org/
https://www.opentheory.org/

5 KB
2 KB

1052ms
15ms

Document
text/html

178.63.68.96
HETZNER-AS

General

Check archive.org

Show headers Download Go to

Full URL

https://www.opentheory.org/

Protocol

H2

Security

TLS 1.3, , AES_256_GCM

Server

178.63.68.96 , Germany, ASN24940 (HETZNER-AS, DE),

Reverse DNS

zucker.schokokeks.org

Software

Apache /

Resource Hash

7f2748dfd043f3364ab725d35fa3e25263cc499a0364b26e9840fd2f371535a4

Security Headers

Name	Value
Strict-Transport-Security	max-age=63072000;includeSubDomains

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Response headers

accept-ranges: bytes
content-encoding: br
content-length: 1650
content-type: text/html; charset=iso-8859-1
date: Mon, 11 Nov 2024 22:05:02 GMT
etag: "14ff-49321e51e1380-br"
last-modified: Thu, 21 Oct 2010 15:08:14 GMT
server: Apache
strict-transport-security: max-age=63072000;includeSubDomains
vary: Accept-Encoding,User-Agent

Redirect headers

Location: https://www.opentheory.org/
Non-Authoritative-Reason: HttpsUpgrades

GET
H2 200 ot3.png
www.opentheory.org/images/ 8 KB
8 KB 15ms
14ms Image
image/png 178.63.68.96
HETZNER-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.opentheory.org/images/ot3.png

Requested by

Host: www.opentheory.org
URL: https://www.opentheory.org/

Protocol

H2

Security

TLS 1.3, , AES_256_GCM

Server

178.63.68.96 , Germany, ASN24940 (HETZNER-AS, DE),

Reverse DNS

zucker.schokokeks.org

Software

Apache /

Resource Hash

5cf78d548695158d7402c76a68d182c62dd92f6a0a38c1b7010f501782f8bd54

Security Headers

Name	Value
Strict-Transport-Security	max-age=63072000;includeSubDomains

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer: https://www.opentheory.org/

Response headers

strict-transport-security: max-age=63072000;includeSubDomains
etag: "1f92-492fed3680240"
accept-ranges: bytes
content-length: 8082
date: Mon, 11 Nov 2024 22:05:02 GMT
last-modified: Tue, 19 Oct 2010 21:17:53 GMT
vary: User-Agent
server: Apache
content-type: image/png

GET
H3 200 valid-html401
www.w3.org/Icons/ 1 KB
2 KB 41ms
23ms Image
image/png 2606:4700::6812:1713
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.w3.org/Icons/valid-html401

Requested by

Host: www.opentheory.org
URL: https://www.opentheory.org/

Protocol

H3

Security

QUIC, , AES_128_GCM

Server

2606:4700::6812:1713 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

d5140c2bca788a8a557cac3fb9234947d9e840bd8276524c179e21f179b8a74e

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests
Strict-Transport-Security	max-age=15552000; includeSubdomains; preload

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer: https://www.opentheory.org/

Response headers

x-request-id: 8ddd3d12ccaf6f32
cf-bgj: imgq:100,h2pri
etag: "606-41880ced83900;6199ec152eb40
age: 548854
cf-cache-status: HIT
content-location: valid-html401.png
expires: Thu, 05 Dec 2024 13:37:27 GMT
cf-polished: origSize=1542, status=vary_header_present
alt-svc: h3=":443"; ma=86400
date: Mon, 11 Nov 2024 22:05:02 GMT
content-type: image/png; qs=0.7
last-modified: Fri, 14 Jul 2006 01:43:32 GMT
vary: negotiate,Origin, Accept-Encoding
strict-transport-security: max-age=15552000; includeSubdomains; preload
content-security-policy: frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests
cache-control: public, max-age=604800, s-maxage=604800
x-backend: www-mirrors
cf-ray: 8e1194d819ad4db9-FRA
accept-ranges: bytes
access-control-allow-origin: *
content-length: 1291
tcn: choice
server: cloudflare

GET jsapi
www.google.com/ 0
0

GET
H2 200 favicon.ico
www.opentheory.org/images/ 1 KB
371 B 14ms
14ms Other
image/vnd.microsoft.icon 178.63.68.96
HETZNER-AS

General

Check archive.org

Show headers Download Go to

Full URL

https://www.opentheory.org/images/favicon.ico

Protocol

H2

Security

TLS 1.3, , AES_256_GCM

Server

178.63.68.96 , Germany, ASN24940 (HETZNER-AS, DE),

Reverse DNS

zucker.schokokeks.org

Software

Apache /

Resource Hash

385b2a62a0563f37ad611e364fbe579f256f49bdeecf0a3c83116c303c4882e3

Security Headers

Name	Value
Strict-Transport-Security	max-age=63072000;includeSubDomains

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer: https://www.opentheory.org/

Response headers

strict-transport-security: max-age=63072000;includeSubDomains
content-encoding: br
etag: "57e-492f4734dd9c0-br"
accept-ranges: bytes
content-length: 277
date: Mon, 11 Nov 2024 22:05:02 GMT
last-modified: Tue, 19 Oct 2010 08:55:11 GMT
vary: Accept-Encoding,User-Agent
server: Apache
content-type: image/vnd.microsoft.icon

Failed requests

These URLs were requested, but there was no response received. You will also see them in the list above.

Domain: www.google.com
URL: http://www.google.com/jsapi

Verdicts & Comments Add Verdict or Comment

0 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.

1 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
			.w3.org/	1970-01-21 00:56:04	Name: __cf_bm Value: oea7HI7Gm7jCdo7rLkbHad9OKDbSBp6QK6F5eQyQ2Mk-1731362702-1.0.1.1-E0U.ak9L5FATxUpSaBBlNUDreSs.6rDyfJdIpz0BVF9QaaXeVHVcexfa2PG9SMakqqggFgl.bsf6jUhjJrnIIw

3 Console Messages

A page may trigger messages to the console to be logged. These are often error messages about being unable to load a resource or execute a piece of JavaScript. Sometimes they also provide insight into the technology behind a website.

Source	Level	URL Text
security	warning	URL: https://www.opentheory.org/ Message: Mixed Content: The page at 'https://www.opentheory.org/' was loaded over HTTPS, but requested an insecure element 'http://www.w3.org/Icons/valid-html401'. This request was automatically upgraded to HTTPS, For more information see https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html
security	error	URL: https://www.opentheory.org/ Message: Mixed Content: The page at 'https://www.opentheory.org/' was loaded over HTTPS, but requested an insecure script 'http://www.google.com/jsapi'. This request has been blocked; the content must be served over HTTPS.
security	warning	URL: https://www.opentheory.org/ Message: Mixed Content: The page at 'https://www.opentheory.org/' was loaded over HTTPS, but requested an insecure element 'http://www.w3.org/Icons/valid-html401'. This request was automatically upgraded to HTTPS, For more information see https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html

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=63072000;includeSubDomains

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.

www.google.com
www.opentheory.org
www.w3.org
www.google.com
178.63.68.96
2606:4700::6812:1713
385b2a62a0563f37ad611e364fbe579f256f49bdeecf0a3c83116c303c4882e3
5cf78d548695158d7402c76a68d182c62dd92f6a0a38c1b7010f501782f8bd54
7f2748dfd043f3364ab725d35fa3e25263cc499a0364b26e9840fd2f371535a4
d5140c2bca788a8a557cac3fb9234947d9e840bd8276524c179e21f179b8a74e

www.opentheory.org Open in urlscan Pro 178.63.68.96 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

5 Requests

80 %HTTPS

50 %IPv6

3 Domains

3 Subdomains

3 IPs

2 Countries

12 kBTransfer

16 kBSize

1 Cookies

1 Outgoing links

Page URL History

Redirected requests

5 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

Failed requests

Verdicts & Comments Add Verdict or Comment

0 JavaScript Global Variables

1 Cookies

3 Console Messages

Security Headers

Indicators

www.opentheory.org Open in urlscan Pro
178.63.68.96 Public Scan

Screenshot
Live screenshot

Full Image

5
Requests

80 %
HTTPS

50 %
IPv6

3
Domains

3
Subdomains

3
IPs

2
Countries

12 kB
Transfer

16 kB
Size

1
Cookies

5 HTTP transactions
0 data transactions