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sel4.systems Open in urlscan Pro
129.94.175.75  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: http://sel4.systems/
Effective URL: https://sel4.systems/
Submission: On December 01 via api from US — Scanned from AU
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 4 IPs in 2 countries across 4 domains to perform 24 HTTP transactions. The main IP is 129.94.175.75, located in Sydney, Australia and belongs to UNSW-AS-AP University of New South Wales, AU. The main domain is sel4.systems.
TLS certificate: Issued by R3 on November 22nd 2023. Valid for: 3 months.
This is the only time sel4.systems was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 21 129.94.175.75 23859 (UNSW-AS-A...)
1 142.250.66.202 15169 (GOOGLE)
2 142.251.221.72 15169 (GOOGLE)
1 142.250.204.3 15169 (GOOGLE)
24 4
Apex Domain
Subdomains		 Transfer
21 sel4.systems
sel4.systems
600 KB
2 google-analytics.com
ssl.google-analytics.com — Cisco Umbrella Rank: 587
17 KB
1 gstatic.com
fonts.gstatic.com
16 KB
1 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 29
994 B
24 4
Domain Requested by
21 sel4.systems 1 redirects sel4.systems
2 ssl.google-analytics.com sel4.systems
1 fonts.gstatic.com fonts.googleapis.com
1 fonts.googleapis.com sel4.systems
24 4

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

Domain
github.com
docs.sel4.systems
fosstodon.org
www.youtube.com
www.linkedin.com
www.lfprojects.org
Subject Issuer Validity Valid
binary.sel4.systems
R3		 2023-11-22 -
2024-02-20		 3 months crt.sh
upload.video.google.com
GTS CA 1C3		 2023-10-23 -
2024-01-15		 3 months crt.sh
*.google-analytics.com
GTS CA 1C3		 2023-10-23 -
2024-01-15		 3 months crt.sh
*.gstatic.com
GTS CA 1C3		 2023-10-23 -
2024-01-15		 3 months crt.sh

This page contains 1 frames:

Primary Page: https://sel4.systems/
Frame ID: 1C006370D3057CE8B2F599A39A5FBD68
Requests: 24 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

Home | seL4

Page URL History Show full URLs

  1. http://sel4.systems/ HTTP 301
    https://sel4.systems/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]*?bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.css
  • bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.js
Overall confidence: 100%
Detected patterns
  • google-analytics\.com/(?:ga|urchin|analytics)\.js
Overall confidence: 100%
Detected patterns
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

Page Statistics

24
Requests

100 %
HTTPS

0 %
IPv6

4
Domains

4
Subdomains

4
IPs

2
Countries

634 kB
Transfer

861 kB
Size

5
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. http://sel4.systems/ HTTP 301
    https://sel4.systems/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

24 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
sel4.systems/
Redirect Chain
  • http://sel4.systems/
  • https://sel4.systems/
14 KB
4 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
ec5e056adb49c2210ac3e34fde40acdf150375fe8d7f888831bc65338363f54d
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36
accept-language
en-AU,en;q=0.9

Response headers

Connection
keep-alive
Content-Encoding
gzip
Content-Type
text/html; charset=utf-8
Date
Fri, 01 Dec 2023 03:32:59 GMT
Server
nginx
Transfer-Encoding
chunked
Vary
Accept-Encoding
X-Frame-Options
SAMEORIGIN
X-XSS-Protection
1; mode=block

Redirect headers

Connection
keep-alive
Content-Length
162
Content-Type
text/html
Date
Fri, 01 Dec 2023 03:32:59 GMT
Location
https://sel4.systems/
Server
nginx
X-Frame-Options
SAMEORIGIN
X-XSS-Protection
1; mode=block
bootstrap.min.css
sel4.systems/css/ 		119 KB
20 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://sel4.systems/css/bootstrap.min.css
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
6d92dfc1700fd38cd130ad818e23bc8aef697f815b2ea5face2b5dfad22f2e11
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Content-Encoding
gzip
Last-Modified
Thu, 04 May 2023 23:01:03 GMT
Server
nginx
ETag
"1da71-5fae6258e40f6-gzip"
Vary
Accept-Encoding
X-Frame-Options
SAMEORIGIN
Content-Type
text/css
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
19741
X-XSS-Protection
1; mode=block
sel4.css
sel4.systems/css/ 		12 KB
3 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://sel4.systems/css/sel4.css
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
b3aee1e7ebf4178c31b64b75e286c0526e16d4b5cd17e2dfd295af1d7ec07096
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Content-Encoding
gzip
Last-Modified
Mon, 20 Nov 2023 02:01:03 GMT
Server
nginx
ETag
"30d3-60a8bdbc00b1a-gzip"
Vary
Accept-Encoding
X-Frame-Options
SAMEORIGIN
Content-Type
text/css
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
2857
X-XSS-Protection
1; mode=block
logo-text-white.svg
sel4.systems/images/ 		18 KB
18 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/logo-text-white.svg
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
d6d657ea561f099a934e152e1749b0a1341e0d2890eec040dcd882f23a61adb0
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Wed, 28 Jul 2021 04:01:36 GMT
Server
nginx
ETag
"4690-5c8270aeff4e2"
X-Frame-Options
SAMEORIGIN
Content-Type
image/svg+xml
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
18064
X-XSS-Protection
1; mode=block
seL4.svg
sel4.systems/images/ 		4 KB
4 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/seL4.svg
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
bc7634c8695bd0c6b2d485ced380a65745ff9f8f56940e9fbd4db83d746f3cc2
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Wed, 28 Jul 2021 04:01:36 GMT
Server
nginx
ETag
"eb8-5c8270af052a2"
X-Frame-Options
SAMEORIGIN
Content-Type
image/svg+xml
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
3768
X-XSS-Protection
1; mode=block
sel4-foundation-logo.svg
sel4.systems/images/ 		5 KB
5 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/sel4-foundation-logo.svg
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
82c19390548080d06b77050467181f33469a0c2a1dad43e79007459ce6d181eb
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Wed, 28 Jul 2021 04:01:36 GMT
Server
nginx
ETag
"1300-5c8270af052a2"
X-Frame-Options
SAMEORIGIN
Content-Type
image/svg+xml
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
4864
X-XSS-Protection
1; mode=block
contacts.png
sel4.systems/images/ 		57 KB
57 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/contacts.png
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
cdf3c1f4e0ff2bb0168de82054209dda1f6ed8e19872b220a8dcc693fa2e1cbe
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Wed, 28 Jul 2021 04:01:36 GMT
Server
nginx
ETag
"e429-5c8270aefe542"
X-Frame-Options
SAMEORIGIN
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
58409
X-XSS-Protection
1; mode=block
services.png
sel4.systems/images/ 		31 KB
31 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/services.png
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
5ad584edbf103fb0f05d6abb4838b0965f4668ec4800aefafe1b27d8e46d7ff1
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Tue, 04 Apr 2023 01:01:03 GMT
Server
nginx
ETag
"7c64-5f87835a62046"
X-Frame-Options
SAMEORIGIN
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
31844
X-XSS-Protection
1; mode=block
sel4_quad_low.jpg
sel4.systems/images/ 		141 KB
141 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/sel4_quad_low.jpg
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
724a099870b9244c005c02fce10aa512d5acac467099e11a9ce8e325da341318
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Wed, 28 Jul 2021 04:01:36 GMT
Server
nginx
ETag
"2341b-5c8270af052a2"
X-Frame-Options
SAMEORIGIN
Content-Type
image/jpeg
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
144411
X-XSS-Protection
1; mode=block
learning.jpg
sel4.systems/images/ 		25 KB
26 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/learning.jpg
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
5afcaf02416b88b725b1be97802ca760b97bb13492cea6ddc63a2398ccec1f6f
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Wed, 28 Jul 2021 04:01:36 GMT
Server
nginx
ETag
"65dc-5c8270aeff4e2"
X-Frame-Options
SAMEORIGIN
Content-Type
image/jpeg
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
26076
X-XSS-Protection
1; mode=block
support.png
sel4.systems/images/ 		55 KB
55 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/support.png
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
af869a69270d6763ef0e7dfe3c5498b6fe4406fe2c6f0a7f4d4ae0fbcedfb764
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Wed, 28 Jul 2021 04:01:36 GMT
Server
nginx
ETag
"dbcb-5c8270af06242"
X-Frame-Options
SAMEORIGIN
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
56267
X-XSS-Protection
1; mode=block
scales.png
sel4.systems/images/ 		6 KB
6 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/scales.png
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
182522d63fcb0a8ef77d62691f8f73f99a19d453f7c3c9f795f46ddd08f91c7e
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Wed, 28 Jul 2021 04:01:36 GMT
Server
nginx
ETag
"177a-5c8270af052a2"
X-Frame-Options
SAMEORIGIN
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
6010
X-XSS-Protection
1; mode=block
sel4-summit-logo.svg
sel4.systems/images/ 		10 KB
10 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/sel4-summit-logo.svg
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
e23fd6a76ebc046232f656331b30c875dfcc86f8e7ebdb836258e6789bc46b4b
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Mon, 09 May 2022 08:31:02 GMT
Server
nginx
ETag
"284d-5de900751730c"
X-Frame-Options
SAMEORIGIN
Content-Type
image/svg+xml
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
10317
X-XSS-Protection
1; mode=block
contributing.jpg
sel4.systems/images/ 		52 KB
52 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/contributing.jpg
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
bf932a3525556da94eb9abe6eaa8cdfc9eeabc9bee8d2105fd4ce50b6919c55f
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Wed, 28 Jul 2021 04:01:36 GMT
Server
nginx
ETag
"d0a2-5c8270aefe542"
X-Frame-Options
SAMEORIGIN
Content-Type
image/jpeg
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
53410
X-XSS-Protection
1; mode=block
more_info.png
sel4.systems/images/ 		95 KB
95 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/more_info.png
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
225c613c4f812082a111801cd042d9e9c8f97d1bcdbc7c1441549fa073e0fe04
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Wed, 28 Jul 2021 04:01:36 GMT
Server
nginx
ETag
"17b10-5c8270aeff4e2"
X-Frame-Options
SAMEORIGIN
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
97040
X-XSS-Protection
1; mode=block
mastodon.svg
sel4.systems/images/icons/ 		11 KB
12 KB 		Image
General
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Full URL
https://sel4.systems/images/icons/mastodon.svg
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
d730fa04a12ebfad92a1d0caec0e083c2020547d39fc8665a595049369dae866
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Mon, 09 Jan 2023 03:01:02 GMT
Server
nginx
ETag
"2dc8-5f1cbfa388928"
X-Frame-Options
SAMEORIGIN
Content-Type
image/svg+xml
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
11720
X-XSS-Protection
1; mode=block
youtube.svg
sel4.systems/images/icons/ 		4 KB
4 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/icons/youtube.svg
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
18184e7582be3a3afc4da26012d7d9e8aaf3d0f94206a0e7a7344142258255eb
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Mon, 09 May 2022 08:31:02 GMT
Server
nginx
ETag
"fc3-5de900751348c"
X-Frame-Options
SAMEORIGIN
Content-Type
image/svg+xml
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
4035
X-XSS-Protection
1; mode=block
linkedin.svg
sel4.systems/images/icons/ 		13 KB
14 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://sel4.systems/images/icons/linkedin.svg
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
b92fe4473dcc3c24900bc0d6df98f1c04b2b001937372c617c9d49a09e0439c4
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Last-Modified
Mon, 09 May 2022 08:31:02 GMT
Server
nginx
ETag
"3526-5de900750f60d"
X-Frame-Options
SAMEORIGIN
Content-Type
image/svg+xml
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
13606
X-XSS-Protection
1; mode=block
jquery.min.js
sel4.systems/js/ 		88 KB
31 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://sel4.systems/js/jquery.min.js
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
a0fe8723dcf55da64d06b25446d0a8513e52527c45afcb37073465f9c6f352af
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Content-Encoding
gzip
Last-Modified
Thu, 04 May 2023 23:01:03 GMT
Server
nginx
ETag
"15ec3-5fae6258f7976-gzip"
Vary
Accept-Encoding
X-Frame-Options
SAMEORIGIN
Content-Type
text/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
31043
X-XSS-Protection
1; mode=block
bootstrap.min.js
sel4.systems/js/ 		39 KB
11 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://sel4.systems/js/bootstrap.min.js
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
129.94.175.75 Sydney, Australia, ASN23859 (UNSW-AS-AP University of New South Wales, AU),
Reverse DNS
sel4-www.cse.unsw.EDU.AU
Software
nginx /
Resource Hash
9ee2fcff6709e4d0d24b09ca0fc56aade12b4961ed9c43fd13b03248bfb57afe
Security Headers
Name Value
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

Date
Fri, 01 Dec 2023 03:32:59 GMT
Content-Encoding
gzip
Last-Modified
Thu, 04 May 2023 23:01:03 GMT
Server
nginx
ETag
"9b00-5fae6258f4a96-gzip"
Vary
Accept-Encoding
X-Frame-Options
SAMEORIGIN
Content-Type
text/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
10940
X-XSS-Protection
1; mode=block
css2
fonts.googleapis.com/ 		2 KB
994 B 		Stylesheet
General
Check archive.org
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Full URL
https://fonts.googleapis.com/css2?family=Roboto&display=swap
Requested by
Host: sel4.systems
URL: https://sel4.systems/css/sel4.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.250.66.202 Plainview, United States, ASN15169 (GOOGLE, US),
Reverse DNS
syd09s23-in-f10.1e100.net
Software
ESF /
Resource Hash
c87b7f745cfb4a994801488584e6e0e78d6c4f0ad567e985a781fc0b86074724
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

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

strict-transport-security
max-age=31536000
date
Fri, 01 Dec 2023 03:32:59 GMT
content-encoding
gzip
x-content-type-options
nosniff
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection
0
last-modified
Fri, 01 Dec 2023 03:24:03 GMT
server
ESF
cross-origin-opener-policy
same-origin-allow-popups
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
Fri, 01 Dec 2023 03:32:59 GMT
ga.js
ssl.google-analytics.com/ 		45 KB
17 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://ssl.google-analytics.com/ga.js
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.251.221.72 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
syd09s31-in-f8.1e100.net
Software
Golfe2 /
Resource Hash
1259ea99bd76596239bfd3102c679eb0a5052578dc526b0452f4d42f8bcdd45f
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
date
Fri, 01 Dec 2023 03:17:02 GMT
last-modified
Mon, 12 Jun 2023 18:23:07 GMT
server
Golfe2
age
957
vary
Accept-Encoding
content-type
text/javascript
cache-control
public, max-age=7200
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
17168
expires
Fri, 01 Dec 2023 05:17:02 GMT
KFOmCnqEu92Fr1Mu4mxK.woff2
fonts.gstatic.com/s/roboto/v30/ 		15 KB
16 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4mxK.woff2
Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css2?family=Roboto&display=swap
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.250.204.3 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
syd09s25-in-f3.1e100.net
Software
sffe /
Resource Hash
f6734f8177112c0839b961f96d813fcb189d81b60e96c33278c1983b6f419615
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

Referer
https://fonts.googleapis.com/
Origin
https://sel4.systems
accept-language
en-AU,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

date
Fri, 24 Nov 2023 20:50:19 GMT
x-content-type-options
nosniff
age
542560
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
15744
x-xss-protection
0
last-modified
Wed, 11 May 2022 19:24:48 GMT
server
sffe
cross-origin-opener-policy
same-origin; report-to="apps-themes"
report-to
{"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
timing-allow-origin
*
expires
Sat, 23 Nov 2024 20:50:19 GMT
__utm.gif
ssl.google-analytics.com/r/ 		35 B
197 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://ssl.google-analytics.com/r/__utm.gif?utmwv=5.7.2&utms=1&utmn=1443026814&utmhn=sel4.systems&utmcs=UTF-8&utmsr=1600x1200&utmvp=1600x1200&utmsc=24-bit&utmul=en-us&utmje=0&utmfl=-&utmdt=Home%20%7C%20seL4&utmhid=358277995&utmr=-&utmp=%2F&utmht=1701401579582&utmac=UA-117737473-1&utmcc=__utma%3D41508128.1220578113.1701401580.1701401580.1701401580.1%3B%2B__utmz%3D41508128.1701401580.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmjid=2082229060&utmredir=1&utmu=qAAAAAAAAAAAAAAAAAAAAAAE~
Requested by
Host: sel4.systems
URL: https://sel4.systems/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.251.221.72 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
syd09s31-in-f8.1e100.net
Software
Golfe2 /
Resource Hash
8337212354871836e6763a41e615916c89bac5b3f1f0adf60ba43c7c806e1015
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

accept-language
en-AU,en;q=0.9
Referer
https://sel4.systems/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.199 Safari/537.36

Response headers

pragma
no-cache
date
Fri, 01 Dec 2023 03:32:59 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
content-type
image/gif
access-control-allow-origin
*
cache-control
no-cache, no-store, must-revalidate
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
35
expires
Fri, 01 Jan 1990 00:00:00 GMT

Verdicts & Comments Add Verdict or Comment

6 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| documentPictureInPicture object| _gaq function| $ function| jQuery object| _gat object| gaGlobal

5 Cookies

Domain/Path Name / Value
.sel4.systems/ Name: __utma
Value: 41508128.1220578113.1701401580.1701401580.1701401580.1
.sel4.systems/ Name: __utmc
Value: 41508128
.sel4.systems/ Name: __utmz
Value: 41508128.1701401580.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)
.sel4.systems/ Name: __utmt
Value: 1
.sel4.systems/ Name: __utmb
Value: 41508128.1.10.1701401580

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
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

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.

fonts.googleapis.com
fonts.gstatic.com
sel4.systems
ssl.google-analytics.com
129.94.175.75
142.250.204.3
142.250.66.202
142.251.221.72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