Submitted URL: https://feedback.ict.che.nl/
Effective URL: https://boomerang.ict.che.nl/
Submission: On May 18 via automatic, source certstream-suspicious

Summary

This website contacted 4 IPs in 3 countries across 4 domains to perform 20 HTTP transactions. The main IP is 194.171.89.111, located in Voorhout, Netherlands and belongs to SURFNET-NL SURFnet, The Netherlands, NL. The main domain is boomerang.ict.che.nl.
TLS certificate: Issued by R3 on May 12th 2021. Valid for: 3 months.
This is the only time boomerang.ict.che.nl was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 18 194.171.89.111 1103 (SURFNET-N...)
1 2a00:1450:400... 15169 (GOOGLE)
1 23.111.9.35 33438 (HIGHWINDS2)
1 2a00:1450:400... 15169 (GOOGLE)
20 4
Domain Requested by
17 boomerang.ict.che.nl boomerang.ict.che.nl
1 fonts.gstatic.com fonts.googleapis.com
1 use.fontawesome.com boomerang.ict.che.nl
1 fonts.googleapis.com boomerang.ict.che.nl
1 feedback.ict.che.nl 1 redirects
20 5

This site contains no links.

Subject Issuer Validity Valid
boomerang.ict.che.nl
R3
2021-05-12 -
2021-08-10
3 months crt.sh
upload.video.google.com
GTS CA 1O1
2021-04-13 -
2021-07-06
3 months crt.sh
*.fontawesome.com
DigiCert TLS RSA SHA256 2020 CA1
2020-11-13 -
2021-12-14
a year crt.sh
*.google.com
GTS CA 1O1
2021-05-03 -
2021-07-26
3 months crt.sh

This page contains 1 frames:

Primary Page: https://boomerang.ict.che.nl/
Frame ID: 1E0CF08EF73AD87CCB6240F4FA5D69D0
Requests: 20 HTTP requests in this frame

Screenshot


Page URL History Show full URLs

  1. https://feedback.ict.che.nl/ HTTP 301
    https://boomerang.ict.che.nl/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • headers server /Ubuntu/i

Overall confidence: 100%
Detected patterns
  • headers server /nginx(?:\/([\d.]+))?/i

Overall confidence: 100%
Detected patterns
  • html /<link[^>]* href="https:\/\/use\.fontawesome\.com\/releases\/v([^>]+)\/css\//i

Overall confidence: 100%
Detected patterns
  • html /<link[^>]* href=[^>]+fonts\.(?:googleapis|google)\.com/i

Overall confidence: 100%
Detected patterns
  • script /jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?/i

Page Statistics

20
Requests

100 %
HTTPS

50 %
IPv6

4
Domains

5
Subdomains

4
IPs

3
Countries

3691 kB
Transfer

3724 kB
Size

0
Cookies

Page URL History

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

  1. https://feedback.ict.che.nl/ HTTP 301
    https://boomerang.ict.che.nl/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

20 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
boomerang.ict.che.nl/
Redirect Chain
  • https://feedback.ict.che.nl/
  • https://boomerang.ict.che.nl/
2 KB
1 KB
Document
General
Full URL
https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
fa056210986647140e56260909304def2e3621931adde90c66aec6da05c7f477

Request headers

Host
boomerang.ict.che.nl
Connection
keep-alive
Pragma
no-cache
Cache-Control
no-cache
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Sec-Fetch-Site
none
Sec-Fetch-Mode
navigate
Sec-Fetch-User
?1
Sec-Fetch-Dest
document
Accept-Encoding
gzip, deflate, br
Accept-Language
en-US
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Server
nginx/1.14.0 (Ubuntu)
Date
Tue, 18 May 2021 11:37:03 GMT
Content-Type
text/html
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Transfer-Encoding
chunked
Connection
keep-alive
ETag
W/"5c93a330-97f"
Content-Encoding
gzip

Redirect headers

Server
nginx/1.14.0 (Ubuntu)
Date
Tue, 18 May 2021 11:37:03 GMT
Content-Type
text/html
Content-Length
194
Connection
keep-alive
Location
https://boomerang.ict.che.nl/
app.36987909.css
boomerang.ict.che.nl/css/
260 KB
261 KB
Stylesheet
General
Full URL
https://boomerang.ict.che.nl/css/app.36987909.css
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
f8a5dd37312d971da2c4057577d4b2be7b4b84ed5b5dd1e11189aef1aa2ebf46

Request headers

Pragma
no-cache
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
text/css,*/*;q=0.1
Cache-Control
no-cache
Sec-Fetch-Dest
style
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-41113"
Content-Type
text/css
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
266515
chunk-vendors.7325688f.css
boomerang.ict.che.nl/css/
161 KB
161 KB
Stylesheet
General
Full URL
https://boomerang.ict.che.nl/css/chunk-vendors.7325688f.css
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
6a51a0c408c4f12eefa629594f90c71bf14380202c04268fed1625eab0abfa0e

Request headers

Pragma
no-cache
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
text/css,*/*;q=0.1
Cache-Control
no-cache
Sec-Fetch-Dest
style
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-2824b"
Content-Type
text/css
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
164427
app.5b5a1ae5.js
boomerang.ict.che.nl/js/
47 KB
48 KB
Script
General
Full URL
https://boomerang.ict.che.nl/js/app.5b5a1ae5.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
30d21aa235d40d63b4079dc626a471de2cd6a8401b2a16c80455c3500162d5f8

Request headers

Pragma
no-cache
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
*/*
Cache-Control
no-cache
Sec-Fetch-Dest
script
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-bd3d"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
48445
chunk-vendors.b08a2194.js
boomerang.ict.che.nl/js/
868 KB
868 KB
Script
General
Full URL
https://boomerang.ict.che.nl/js/chunk-vendors.b08a2194.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
e0e0c9f109dac167a7ea0b0de661c9de2971cf3dda6f9e24a28be68ba8441fa7

Request headers

Pragma
no-cache
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
*/*
Cache-Control
no-cache
Sec-Fetch-Dest
script
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-d907b"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
888955
css
fonts.googleapis.com/
5 KB
627 B
Stylesheet
General
Full URL
https://fonts.googleapis.com/css?family=Lato:300,300i,400,400i,700,700i,900,900i
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:801::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
9062b283108aee3d80a32cada8435bd6e2b642f3532de4ec9460136e98d6bc3e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

strict-transport-security
max-age=31536000
content-encoding
gzip
x-content-type-options
nosniff
cross-origin-resource-policy
cross-origin
alt-svc
h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
x-xss-protection
0
last-modified
Tue, 18 May 2021 09:41:12 GMT
server
ESF
date
Tue, 18 May 2021 11:37:03 GMT
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
expires
Tue, 18 May 2021 11:37:03 GMT
all.css
use.fontawesome.com/releases/v5.6.3/css/
52 KB
13 KB
Stylesheet
General
Full URL
https://use.fontawesome.com/releases/v5.6.3/css/all.css
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
23.111.9.35 , United States, ASN33438 (HIGHWINDS2, US),
Reverse DNS
Software
NetDNA-cache/2.2 /
Resource Hash
481a0574246e281316ffa0e15399bf5388bb81ae550ce0401a0353b6bb2d1e5a

Request headers

Origin
https://boomerang.ict.che.nl
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 18 May 2021 11:37:04 GMT
content-encoding
gzip
last-modified
Thu, 20 Dec 2018 17:45:13 GMT
server
NetDNA-cache/2.2
etag
W/"dc93d584e41f8417f6b7163320d34329"
vary
Access-Control-Request-Headers, Access-Control-Request-Method, Accept-Encoding
access-control-allow-methods
GET
content-type
text/css
access-control-allow-origin
*
access-control-max-age
3000
cache-control
max-age=31556926
x-cache
HIT
jquery.min.js
boomerang.ict.che.nl/resources/js/
94 KB
94 KB
Script
General
Full URL
https://boomerang.ict.che.nl/resources/js/jquery.min.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
0e9de4e03e5790d859e4492f89e3d2265bcd758012bdb906b850ef87fa8571a4

Request headers

Pragma
no-cache
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
*/*
Cache-Control
no-cache
Sec-Fetch-Dest
script
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-17657"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
95831
flat-ui.js
boomerang.ict.che.nl/resources/js/
1 MB
1 MB
Script
General
Full URL
https://boomerang.ict.che.nl/resources/js/flat-ui.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
beeadb7199f319a12e2d3e0fce5231b216ccbf4724efc77390f68fc576a1b997

Request headers

Pragma
no-cache
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
*/*
Cache-Control
no-cache
Sec-Fetch-Dest
script
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-1086b7"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
1083063
flat-ui-pro.js
boomerang.ict.che.nl/resources/js/
1 MB
1 MB
Script
General
Full URL
https://boomerang.ict.che.nl/resources/js/flat-ui-pro.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
61dbef465c82428015028f52d8d30034f1cf5ace449820a877fc06333bb11503

Request headers

Pragma
no-cache
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
*/*
Cache-Control
no-cache
Sec-Fetch-Dest
script
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-1204a5"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
1180837
application.js
boomerang.ict.che.nl/resources/js/
187 B
446 B
Script
General
Full URL
https://boomerang.ict.che.nl/resources/js/application.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
02ad716868f871f392c5b4ea9eaceb8a11ff84234e8b982689c4ff823c0b7e57

Request headers

Pragma
no-cache
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
*/*
Cache-Control
no-cache
Sec-Fetch-Dest
script
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-bb"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
187
chunk-52e1c34d.f4427897.css
boomerang.ict.che.nl/css/
0
280 B
Other
General
Full URL
https://boomerang.ict.che.nl/css/chunk-52e1c34d.f4427897.css
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma
no-cache
Purpose
prefetch
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
application/signed-exchange;v=b3;q=0.9,*/*;q=0.8
Cache-Control
no-cache
Sec-Fetch-Dest
empty
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-24"
Content-Type
text/css
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
36
chunk-9e747a1e.56d0c8f1.css
boomerang.ict.che.nl/css/
0
444 B
Other
General
Full URL
https://boomerang.ict.che.nl/css/chunk-9e747a1e.56d0c8f1.css
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma
no-cache
Purpose
prefetch
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
application/signed-exchange;v=b3;q=0.9,*/*;q=0.8
Cache-Control
no-cache
Sec-Fetch-Dest
empty
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-c7"
Content-Type
text/css
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
199
chunk-2d0aa1f4.8583bc74.js
boomerang.ict.che.nl/js/
0
666 B
Other
General
Full URL
https://boomerang.ict.che.nl/js/chunk-2d0aa1f4.8583bc74.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma
no-cache
Purpose
prefetch
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
application/signed-exchange;v=b3;q=0.9,*/*;q=0.8
Cache-Control
no-cache
Sec-Fetch-Dest
empty
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-196"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
406
chunk-2d0f11cd.69ebaa4b.js
boomerang.ict.che.nl/js/
0
1 KB
Other
General
Full URL
https://boomerang.ict.che.nl/js/chunk-2d0f11cd.69ebaa4b.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma
no-cache
Purpose
prefetch
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
application/signed-exchange;v=b3;q=0.9,*/*;q=0.8
Cache-Control
no-cache
Sec-Fetch-Dest
empty
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-44d"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
1101
chunk-2d21a56c.b8c90cca.js
boomerang.ict.che.nl/js/
0
3 KB
Other
General
Full URL
https://boomerang.ict.che.nl/js/chunk-2d21a56c.b8c90cca.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma
no-cache
Purpose
prefetch
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
application/signed-exchange;v=b3;q=0.9,*/*;q=0.8
Cache-Control
no-cache
Sec-Fetch-Dest
empty
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-a46"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
2630
chunk-2d21eb59.907cf618.js
boomerang.ict.che.nl/js/
0
1 KB
Other
General
Full URL
https://boomerang.ict.che.nl/js/chunk-2d21eb59.907cf618.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma
no-cache
Purpose
prefetch
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
application/signed-exchange;v=b3;q=0.9,*/*;q=0.8
Cache-Control
no-cache
Sec-Fetch-Dest
empty
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-348"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
840
chunk-52e1c34d.8b70077e.js
boomerang.ict.che.nl/js/
0
763 B
Other
General
Full URL
https://boomerang.ict.che.nl/js/chunk-52e1c34d.8b70077e.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma
no-cache
Purpose
prefetch
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
application/signed-exchange;v=b3;q=0.9,*/*;q=0.8
Cache-Control
no-cache
Sec-Fetch-Dest
empty
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-1f7"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
503
chunk-9e747a1e.b955928c.js
boomerang.ict.che.nl/js/
0
2 KB
Other
General
Full URL
https://boomerang.ict.che.nl/js/chunk-9e747a1e.b955928c.js
Requested by
Host: boomerang.ict.che.nl
URL: https://boomerang.ict.che.nl/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
194.171.89.111 Voorhout, Netherlands, ASN1103 (SURFNET-NL SURFnet, The Netherlands, NL),
Reverse DNS
Software
nginx/1.14.0 (Ubuntu) /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma
no-cache
Purpose
prefetch
Sec-Fetch-Site
same-origin
Accept-Encoding
gzip, deflate, br
Host
boomerang.ict.che.nl
Accept-Language
en-US
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode
no-cors
Accept
application/signed-exchange;v=b3;q=0.9,*/*;q=0.8
Cache-Control
no-cache
Sec-Fetch-Dest
empty
Referer
https://boomerang.ict.che.nl/
Connection
keep-alive
Referer
https://boomerang.ict.che.nl/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Date
Tue, 18 May 2021 11:37:04 GMT
Last-Modified
Thu, 21 Mar 2019 14:44:00 GMT
Server
nginx/1.14.0 (Ubuntu)
ETag
"5c93a330-88f"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
2191
S6uyw4BMUTPHjx4wXg.woff2
fonts.gstatic.com/s/lato/v17/
23 KB
23 KB
Font
General
Full URL
https://fonts.gstatic.com/s/lato/v17/S6uyw4BMUTPHjx4wXg.woff2
Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Lato:300,300i,400,400i,700,700i,900,900i
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:80f::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
sffe /
Resource Hash
c3c0d3f472358aac78455515c4800771426770c22698e2486d39fdb5505634e1
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

Origin
https://boomerang.ict.che.nl
Referer
https://fonts.googleapis.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Thu, 13 May 2021 02:03:02 GMT
x-content-type-options
nosniff
last-modified
Tue, 15 Sep 2020 18:10:46 GMT
server
sffe
age
466442
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
timing-allow-origin
*
alt-svc
h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
23484
x-xss-protection
0
expires
Fri, 13 May 2022 02:03:02 GMT

Verdicts & Comments Add Verdict or Comment

24 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| onbeforexrselect object| ontransitionrun object| ontransitionstart object| ontransitioncancel object| cookieStore function| showDirectoryPicker function| showOpenFilePicker function| showSaveFilePicker boolean| originAgentCluster object| trustedTypes boolean| crossOriginIsolated function| $ function| jQuery object| bootstrap object| jQuery1111020769875028500584 function| onDomReady function| augment object| Holder function| Bloodhound object| Select2 object| webpackJsonp object| __core-js_shared__ object| core function| _

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