speedtest.cesnet.cz - urlscan.io

Summary

This website contacted 2 IPs in 2 countries across 2 domains to perform 7 HTTP transactions. The main IP is 2001:718:1:1f:50:56ff:feee:42, located in Prague, Czech Republic and belongs to CESNET2, CZ. The main domain is speedtest.cesnet.cz.
TLS certificate: Issued by GEANT OV RSA CA 4 on February 11th 2024. Valid for: a year.

This is the only time speedtest.cesnet.cz was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
5	2001:718:1:1f... 2001:718:1:1f:50:56ff:feee:42	2852 (CESNET2) (CESNET2)
2	2606:4700::68... 2606:4700::6811:180e	13335 (CLOUDFLAR...) (CLOUDFLARENET)
7	2

5 2001:718:1:1f:50:56ff:feee:42 (Prague, Czech Republic)

ASN2852 (CESNET2, CZ)

speedtest.cesnet.cz	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2606:4700::6811:180e (United States)

ASN13335 (CLOUDFLARENET, US)

cdnjs.cloudflare.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
5	cesnet.cz speedtest.cesnet.cz	49 KB
2	cloudflare.com cdnjs.cloudflare.com — Cisco Umbrella Rank: 240	84 KB
7	2

	Domain	Requested by
5	speedtest.cesnet.cz	speedtest.cesnet.cz
2	cdnjs.cloudflare.com	speedtest.cesnet.cz
7	2

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

Domain
github.com

Subject Issuer	Validity	Valid
speedtest.cesnet.cz GEANT OV RSA CA 4	`2024-02-11` - `2025-02-10`	a year	crt.sh
sni.cloudflaressl.com Cloudflare Inc ECC CA-3	`2023-07-03` - `2024-07-02`	a year	crt.sh

This page contains 1 frames:

Primary Page: https://speedtest.cesnet.cz/
Frame ID: 3A98652F883194CE0587433C39077D92
Requests: 7 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

CESNET speedtest

Page URL History Show full URLs

http://speedtest.cesnet.cz/ HTTP 307
https://speedtest.cesnet.cz/ Page URL

Detected technologies

Chart.js (JavaScript Graphics) Expand

Overall confidence: 100%
Detected patterns

/Chart(?:\.bundle)?(?:\.min)?\.js
cdnjs\.cloudflare\.com/ajax/libs/Chart\.js/([\d.]+(?:-[^/]+)?)/Chart.*\.js

jQuery (JavaScript Libraries) Expand

Overall confidence: 100%
Detected patterns

/([\d.]+)/jquery(?:\.min)?\.js
jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

Page Statistics

7
Requests

100 %
HTTPS

100 %
IPv6

2
Domains

2
Subdomains

2
IPs

2
Countries

134 kB
Transfer

339 kB
Size

0
Cookies

1 Outgoing links

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

URL: https://github.com/librespeed/speedtest
Title: GitHub

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://speedtest.cesnet.cz/ HTTP 307
https://speedtest.cesnet.cz/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

7 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
speedtest.cesnet.cz/
Redirect Chain

http://speedtest.cesnet.cz/
https://speedtest.cesnet.cz/

3 KB
1 KB

152ms
28ms

Document
text/html

2001:718:1:1f:50:56ff:feee:42
CESNET2

General

Check archive.org

Show headers Download Go to

Full URL: https://speedtest.cesnet.cz/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2001:718:1:1f:50:56ff:feee:42 Prague, Czech Republic, ASN2852 (CESNET2, CZ),
Reverse DNS
Software: nginx/1.10.3 /
Resource Hash: 630261fb41d74a29ffd70f4c63e042b3da2d1f223095ddba313af49320c92d32

Request headers

Accept-Language: de-DE,de;q=0.9;q=0.9
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

Response headers

Connection: keep-alive
Content-Encoding: gzip
Content-Type: text/html; charset=UTF-8
Date: Thu, 11 Apr 2024 14:45:08 GMT
Server: nginx/1.10.3
Transfer-Encoding: chunked

Redirect headers

Location: https://speedtest.cesnet.cz/
Non-Authoritative-Reason: HttpsUpgrades

GET
H/1.1 200
OK style.css
speedtest.cesnet.cz/ 3 KB
3 KB 117ms
116ms Stylesheet
text/css 2001:718:1:1f:50:56ff:feee:42
CESNET2

General

Check archive.org

Show headers Download Go to

Full URL: https://speedtest.cesnet.cz/style.css?v=1.2
Requested by: Host: speedtest.cesnet.cz
URL: https://speedtest.cesnet.cz/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2001:718:1:1f:50:56ff:feee:42 Prague, Czech Republic, ASN2852 (CESNET2, CZ),
Reverse DNS
Software: nginx/1.10.3 /
Resource Hash: 550d03e979187907d5ae3c7fea92ecb3a24ce275080334b03c976e6446ce0fd6

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://speedtest.cesnet.cz/
Accept-Language: de-DE,de;q=0.9;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: Thu, 11 Apr 2024 14:45:08 GMT
Last-Modified: Tue, 29 Jun 2021 09:22:01 GMT
Server: nginx/1.10.3
ETag: "60dae639-b55"
Content-Type: text/css
Connection: keep-alive
Accept-Ranges: bytes
Content-Length: 2901

GET
H3 200 Chart.bundle.min.js Show response
cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.1/ 203 KB
54 KB 29ms
17ms Script
application/javascript 2606:4700::6811:180e
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.1/Chart.bundle.min.js

Requested by

Host: speedtest.cesnet.cz
URL: https://speedtest.cesnet.cz/

Protocol

H3

Security

QUIC, , AES_128_GCM

Server

2606:4700::6811:180e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

378bb90634cb370986ba5e9180ba0448f36a0c555489b56e39884fe20260adec

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://speedtest.cesnet.cz/
Accept-Language: de-DE,de;q=0.9;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: Thu, 11 Apr 2024 14:45:08 GMT
content-encoding: br
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
strict-transport-security: max-age=15780000
age: 2493674
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
content-length: 54524
last-modified: Mon, 04 May 2020 16:03:58 GMT
server: cloudflare
cf-cdnjs-via: cfworker/kv
etag: "5eb03cee-32d5d"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=VoFhlgAf3MMUQ61uy5rS6v398ro66pQrOumI1L2is6%2FRqZIiBD%2F4zIh8p%2Fc1X00Tbas1hgefcQim5vIeTHKxGmdHWbI5a7PM8xuzRTt8yNyLWLme%2FGe3sRxES6cBRJs56HBEbkcTazLWLbTN1Kf%2FTtQi"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=30672000
accept-ranges: bytes
timing-allow-origin: *
cf-ray: 872bc236190e973f-FRA
expires: Tue, 01 Apr 2025 14:45:08 GMT

GET
H3 200 jquery.min.js Show response
cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/ 85 KB
30 KB 42ms
30ms Script
application/javascript 2606:4700::6811:180e
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js

Requested by

Host: speedtest.cesnet.cz
URL: https://speedtest.cesnet.cz/

Protocol

H3

Security

QUIC, , AES_128_GCM

Server

2606:4700::6811:180e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

160a426ff2894252cd7cebbdd6d6b7da8fcd319c65b70468f10b6690c45d02ef

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://speedtest.cesnet.cz/
Accept-Language: de-DE,de;q=0.9;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: Thu, 11 Apr 2024 14:45:08 GMT
strict-transport-security: max-age=15780000
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
age: 311780
content-encoding: gzip
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
last-modified: Mon, 04 May 2020 16:11:48 GMT
server: cloudflare
cf-cdnjs-via: cfworker/kv
etag: W/"5eb03ec4-1538f"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=qVuKuEAnxe3%2F%2FQ24a%2FH0yj24wY1fUdP8TS%2BMg5ydpRtURPn%2BVUpH7Q6JBG%2BjCuwfK1Ky4VnOFngS8HXHorkZELlznCQjl9Yia%2F5fhbbDPVjRzuHLBwrxAbLj69EYiG6AQ8inwLDr3O2ZgIp02fizM2Oy"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=30672000
timing-allow-origin: *
cf-ray: 872bc2361911973f-FRA
expires: Tue, 01 Apr 2025 14:45:08 GMT

GET
H/1.1 200
OK speedtest_base.js Show response
speedtest.cesnet.cz/ 18 KB
18 KB 113ms
56ms Script
application/javascript 2001:718:1:1f:50:56ff:feee:42
CESNET2

General

Check archive.org

Show headers Download Go to

Full URL: https://speedtest.cesnet.cz/speedtest_base.js?v=1.4
Requested by: Host: speedtest.cesnet.cz
URL: https://speedtest.cesnet.cz/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2001:718:1:1f:50:56ff:feee:42 Prague, Czech Republic, ASN2852 (CESNET2, CZ),
Reverse DNS
Software: nginx/1.10.3 /
Resource Hash: 7b660770872c0395a703b0582f12fb87c93b913763ea31b7f60395c6d819272a

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://speedtest.cesnet.cz/
Accept-Language: de-DE,de;q=0.9;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: Thu, 11 Apr 2024 14:45:08 GMT
Last-Modified: Thu, 13 Jan 2022 11:17:14 GMT
Server: nginx/1.10.3
ETag: "61e00a3a-480a"
Content-Type: application/javascript
Connection: keep-alive
Accept-Ranges: bytes
Content-Length: 18442

GET
H/1.1 200
OK logo6.svg
speedtest.cesnet.cz/ 10 KB
10 KB 96ms
34ms Image
image/svg+xml 2001:718:1:1f:50:56ff:feee:42
CESNET2

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://speedtest.cesnet.cz/logo6.svg
Requested by: Host: speedtest.cesnet.cz
URL: https://speedtest.cesnet.cz/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2001:718:1:1f:50:56ff:feee:42 Prague, Czech Republic, ASN2852 (CESNET2, CZ),
Reverse DNS
Software: nginx/1.10.3 /
Resource Hash: afd3927478b3d0f5443254797809735d9221382e83ca5bd3ed922386a374579d

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://speedtest.cesnet.cz/
Accept-Language: de-DE,de;q=0.9;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: Thu, 11 Apr 2024 14:45:08 GMT
Last-Modified: Tue, 29 Jun 2021 09:22:00 GMT
Server: nginx/1.10.3
ETag: "60dae638-2735"
Content-Type: image/svg+xml
Connection: keep-alive
Accept-Ranges: bytes
Content-Length: 10037

GET
H/1.1 200
OK favicon.ico
speedtest.cesnet.cz/ 17 KB
17 KB 56ms
56ms Other
image/x-icon 2001:718:1:1f:50:56ff:feee:42
CESNET2

General

Check archive.org

Show headers Download Go to

Full URL: https://speedtest.cesnet.cz/favicon.ico
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2001:718:1:1f:50:56ff:feee:42 Prague, Czech Republic, ASN2852 (CESNET2, CZ),
Reverse DNS
Software: nginx/1.10.3 /
Resource Hash: 4a0d7a5a4aa43eeb967dff70c899de820cb725c74841a5b5eea37cea78ca1d42

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://speedtest.cesnet.cz/
Accept-Language: de-DE,de;q=0.9;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: Thu, 11 Apr 2024 14:45:08 GMT
Last-Modified: Tue, 29 Jun 2021 10:12:47 GMT
Server: nginx/1.10.3
ETag: "60daf21f-423e"
Content-Type: image/x-icon
Connection: keep-alive
Accept-Ranges: bytes
Content-Length: 16958

Verdicts & Comments Add Verdict or Comment

40 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.

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.

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.

cdnjs.cloudflare.com
speedtest.cesnet.cz
2001:718:1:1f:50:56ff:feee:42
2606:4700::6811:180e
160a426ff2894252cd7cebbdd6d6b7da8fcd319c65b70468f10b6690c45d02ef
378bb90634cb370986ba5e9180ba0448f36a0c555489b56e39884fe20260adec
4a0d7a5a4aa43eeb967dff70c899de820cb725c74841a5b5eea37cea78ca1d42
550d03e979187907d5ae3c7fea92ecb3a24ce275080334b03c976e6446ce0fd6
630261fb41d74a29ffd70f4c63e042b3da2d1f223095ddba313af49320c92d32
7b660770872c0395a703b0582f12fb87c93b913763ea31b7f60395c6d819272a
afd3927478b3d0f5443254797809735d9221382e83ca5bd3ed922386a374579d

speedtest.cesnet.cz Open in urlscan Pro 2001:718:1:1f:50:56ff:feee:42 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Detected technologies

Page Statistics

7 Requests

100 %HTTPS

100 %IPv6

2 Domains

2 Subdomains

2 IPs

2 Countries

134 kBTransfer

339 kBSize

0 Cookies

1 Outgoing links

Page URL History

Redirected requests

7 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

Verdicts & Comments Add Verdict or Comment

40 JavaScript Global Variables

0 Cookies

Indicators

speedtest.cesnet.cz Open in urlscan Pro
2001:718:1:1f:50:56ff:feee:42 Public Scan

Screenshot
Live screenshot

Full Image

7
Requests

100 %
HTTPS

100 %
IPv6

2
Domains

2
Subdomains

2
IPs

2
Countries

134 kB
Transfer

339 kB
Size

0
Cookies

7 HTTP transactions
0 data transactions