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2606:4700:3031::ac43:df46  Public Scan

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Submitted URL: http://codeforces.com/contest/935/problem/A
Effective URL: https://codeforces.com/contest/935/problem/A
Submission Tags: falconsandbox
Submission: On April 14 via api from US — Scanned from DE
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 6 IPs in 3 countries across 5 domains to perform 79 HTTP transactions. The main IP is 2606:4700:3031::ac43:df46, located in United States and belongs to CLOUDFLARENET, US. The main domain is codeforces.com. The Cisco Umbrella rank of the primary domain is 431140.
TLS certificate: Issued by GTS CA 1P5 on April 6th 2023. Valid for: 3 months.
This is the only time codeforces.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 3 2606:4700:303... 13335 (CLOUDFLAR...)
65 2a06:98c1:312... 13335 (CLOUDFLAR...)
2 2a00:1450:400... 15169 (GOOGLE)
6 195.123.220.85 21100 (ITLDC-NL)
2 2a00:1450:400... 15169 (GOOGLE)
2 2a00:1450:400... 15169 (GOOGLE)
79 6
3    2606:4700:3031::ac43:df46 (United States)

ASN13335 (CLOUDFLARENET, US)
codeforces.com
65    2a06:98c1:3120::3 (United States)

ASN13335 (CLOUDFLARENET, US)
codeforces.org
2    2a00:1450:4001:830::200a (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
fonts.googleapis.com
6    195.123.220.85 (Meppel, Netherlands)

ASN21100 (ITLDC-NL, UA)
PTR: vds-955881.hosted-by-itldc.com
cdn-mathjax.codeforces.com
2    2a00:1450:4001:810::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
ssl.google-analytics.com
2    2a00:1450:4001:828::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
fonts.gstatic.com
Apex Domain
Subdomains		 Transfer
65 codeforces.org
codeforces.org — Cisco Umbrella Rank: 864880
386 KB
9 codeforces.com
codeforces.com — Cisco Umbrella Rank: 431140
cdn-mathjax.codeforces.com
201 KB
2 gstatic.com
fonts.gstatic.com
59 KB
2 google-analytics.com
ssl.google-analytics.com — Cisco Umbrella Rank: 421
17 KB
2 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 39
1 KB
79 5
Domain Requested by
65 codeforces.org codeforces.com
codeforces.org
6 cdn-mathjax.codeforces.com codeforces.com
cdn-mathjax.codeforces.com
3 codeforces.com 1 redirects codeforces.com
2 fonts.gstatic.com fonts.googleapis.com
2 ssl.google-analytics.com codeforces.com
2 fonts.googleapis.com codeforces.com
79 6

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

Domain
ton.org
ifmo.ru
Subject Issuer Validity Valid
*.codeforces.com
GTS CA 1P5		 2023-04-06 -
2023-07-05		 3 months crt.sh
sni.cloudflaressl.com
Cloudflare Inc ECC CA-3		 2023-01-26 -
2024-01-25		 a year crt.sh
upload.video.google.com
GTS CA 1C3		 2023-03-28 -
2023-06-20		 3 months crt.sh
*.google-analytics.com
GTS CA 1C3		 2023-03-28 -
2023-06-20		 3 months crt.sh
*.gstatic.com
GTS CA 1C3		 2023-03-28 -
2023-06-20		 3 months crt.sh

This page contains 1 frames:

Primary Page: https://codeforces.com/contest/935/problem/A
Frame ID: 5B5AE1E97B78449ADAD1DE3F9BC3854E
Requests: 79 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

Problem - A - Codeforces

Page URL History Show full URLs

  1. http://codeforces.com/contest/935/problem/A HTTP 301
    https://codeforces.com/contest/935/problem/A Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • ([\d.]+)?/mathjax\.js
Overall confidence: 100%
Detected patterns
  • clipboard(?:-([\d.]+))?(?:\.min)?\.js
Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]+(?:([\d.]+)/)?(?:css/)?font-awesome(?:\.min)?\.css
  • <link[^>]* href=[^>]*?(?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)
  • (?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:.*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)
Overall confidence: 100%
Detected patterns
  • google-analytics\.com/(?:ga|urchin|analytics)\.js
Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]+fonts\.(?:googleapis|google)\.com
Overall confidence: 100%
Detected patterns
  • jquery[.-]([\d.]*\d)[^/]*\.js
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

Page Statistics

79
Requests

100 %
HTTPS

83 %
IPv6

5
Domains

6
Subdomains

6
IPs

3
Countries

664 kB
Transfer

1795 kB
Size

7
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://codeforces.com/contest/935/problem/A HTTP 301
    https://codeforces.com/contest/935/problem/A Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

79 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request A
codeforces.com/contest/935/problem/
Redirect Chain
  • http://codeforces.com/contest/935/problem/A
  • https://codeforces.com/contest/935/problem/A
56 KB
14 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://codeforces.com/contest/935/problem/A
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3031::ac43:df46 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
d9cb6b2a9715076f8715779acf81ff2af2aebb563e2f2b64426d54ec7776eb5b
Security Headers
Name Value
Strict-Transport-Security max-age=86400
X-Content-Type-Options nosniff
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/112.0.5615.49 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
cache-control
private,no-cache,no-store,max-age=0,must-revalidate
cf-cache-status
DYNAMIC
cf-ray
7b7a9718cbb39a17-FRA
content-encoding
br
content-type
text/html;charset=UTF-8
date
Fri, 14 Apr 2023 08:31:02 GMT
expires
-1
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
pragma
no-cache
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=O1tBayjUwAhYbSlruQy3zYilGOjwIoJneiZ80adDtR98sl0D0qVX5Qm0qldYyx1BQIR741ZzdNq2JYdC0n4eUwWwzcSlCo3u2eBCDpGIS92m1Y4zaTCxyERzMRniK6Y0gmHL%2FueiUoheziMurw%3D%3D"}],"group":"cf-nel","max_age":604800}
server
cloudflare
strict-transport-security
max-age=86400
vary
Accept-Encoding accept-encoding
x-content-type-options
nosniff
x-frame-options
sameorigin
x-xss-protection
1; mode=block

Redirect headers

CF-RAY
7b7a97179b38367f-FRA
Cache-Control
max-age=3600
Connection
keep-alive
Date
Fri, 14 Apr 2023 08:31:02 GMT
Expires
Fri, 14 Apr 2023 09:31:02 GMT
Location
https://codeforces.com/contest/935/problem/A
NEL
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Report-To
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=FsHzTatDLD%2FSIpNf8tyh1nr0oZXw6A1jr2pe3F3H1qnQjAY9g4Y9rXXOUuJRNl1T39HKJc7Yn0QH9VODRLZ7UYDpsrn9o8wbPUD%2FApoxktz%2FUSvhYN3IRSi3vo9CBlzZoo%2B68FmQriDX6e1Muw%3D%3D"}],"group":"cf-nel","max_age":604800}
Server
cloudflare
Transfer-Encoding
chunked
Vary
Accept-Encoding
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
jquery-1.8.3.js
codeforces.org/s/0/js/ 		142 KB
43 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://codeforces.org/s/0/js/jquery-1.8.3.js
Requested by
Host: codeforces.com
URL: https://codeforces.com/contest/935/problem/A
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
a744f91b869addd9de6be96c80a56b77cbd3c4210dbb9d24ccfcfa8d0c56dbb4

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://codeforces.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

date
Fri, 14 Apr 2023 08:31:03 GMT
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age
99934
cf-polished
origSize=267739
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
pragma
public
cf-bgj
minify
last-modified
Mon, 03 Apr 2023 20:10:53 GMT
server
cloudflare
etag
W/"642b32cd-415db"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=pPfAl7c6lJCH%2BmnZMz%2BHWY9wcMnOH0aXSv7xMFrCvRE%2FEV8RgoRLIEfhmE9CMuQePbNg1waE5Q0cqOzV%2BRFpZvSeXLfm4MpHXGGIiMIMgNhEmU%2BcW9gokC5oeK1H8LWtqzeGLEnBYGQhVqoyVw%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type
application/javascript
access-control-allow-origin
*
cache-control
public, max-age=604800
cf-ray
7b7a971bbaa59b9a-FRA
expires
Thu, 20 Apr 2023 04:45:29 GMT
font-awesome.min.css
codeforces.org/s/96947/css/ 		27 KB
6 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://codeforces.org/s/96947/css/font-awesome.min.css
Requested by
Host: codeforces.com
URL: https://codeforces.com/contest/935/problem/A
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
16479dc1f894106be7221252a139a7e8e14a830ad029ef30183e7af7b751e2b3

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://codeforces.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

date
Fri, 14 Apr 2023 08:31:02 GMT
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age
2869
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
pragma
public
last-modified
Mon, 03 Apr 2023 20:10:52 GMT
server
cloudflare
etag
W/"642b32cc-6a5b"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=nvwwzSqKj9tPevWuWYNLGUc%2F1n4Qec32CKtSvYAhmjkHyAXtFanu9HZf%2BlsSaT5TDIL56SSNOwH%2BfThLR%2FW3HX70eWbpdKRLvlbRt0Dj7ltEsU9XwjDVfSfLAxGUYan75ahqgGzfZ8sMCcekXg%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type
text/css
access-control-allow-origin
*
cache-control
public, max-age=604800
cf-ray
7b7a971b6a1f9b9a-FRA
expires
Fri, 21 Apr 2023 07:43:13 GMT
line-awesome.min.css
codeforces.org/s/96947/css/ 		88 KB
16 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://codeforces.org/s/96947/css/line-awesome.min.css
Requested by
Host: codeforces.com
URL: https://codeforces.com/contest/935/problem/A
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
ce61a18cf084f15003798340044643f329ac5f90045acb2d9e778368bd799854

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://codeforces.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

date
Fri, 14 Apr 2023 08:31:02 GMT
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age
2869
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
pragma
public
last-modified
Mon, 03 Apr 2023 20:10:52 GMT
server
cloudflare
etag
W/"642b32cc-15e81"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=%2BaLmuPaPrVup%2BSXNFgRoRIXnYzwj4FJXr7UjadMskYk43bkbDnPiKsm3ZnEWbWzbnze6DZu673wTy7V8OPP1%2FzVwS34HG%2Bv7p%2Bm7D%2FmnzoSmk0xVigbxTGTRW22CZPLvxXtBuA%2FeCuU9CUs2Ow%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type
text/css
access-control-allow-origin
*
cache-control
public, max-age=604800
cf-ray
7b7a971b6a209b9a-FRA
expires
Fri, 21 Apr 2023 07:43:13 GMT
css
fonts.googleapis.com/ 		3 KB
936 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=PT+Sans+Narrow:400,700&subset=latin,cyrillic
Requested by
Host: codeforces.com
URL: https://codeforces.com/contest/935/problem/A
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:830::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
ebe1b1f78a83ccf3bdc23619c97d161e333b43a6ac9ca332bb6c8201bb72be76
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
de-DE,de;q=0.9
Referer
https://codeforces.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

strict-transport-security
max-age=31536000
date
Fri, 14 Apr 2023 08:31:02 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, 14 Apr 2023 08:23:33 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, 14 Apr 2023 08:31:02 GMT
css
fonts.googleapis.com/ 		2 KB
593 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Cuprum&subset=latin,cyrillic
Requested by
Host: codeforces.com
URL: https://codeforces.com/contest/935/problem/A
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:830::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
76a92d0ab68cf9c02a2a6d59e31e7389c5ab3b7873dcea4e2e14820877a3c847
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
de-DE,de;q=0.9
Referer
https://codeforces.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

strict-transport-security
max-age=31536000
date
Fri, 14 Apr 2023 08:31:02 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, 14 Apr 2023 08:31:02 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, 14 Apr 2023 08:31:02 GMT
prettify.css
codeforces.org/s/96947/css/ 		2 KB
737 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://codeforces.org/s/96947/css/prettify.css
Requested by
Host: codeforces.com
URL: https://codeforces.com/contest/935/problem/A
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
36a8b7e4af67f1229891cad4d00155d6fb2172768aabecf84ebc5c403523cb76

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://codeforces.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

date
Fri, 14 Apr 2023 08:31:02 GMT
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age
2869
cf-polished
origSize=3571
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
pragma
public
cf-bgj
minify
last-modified
Mon, 03 Apr 2023 20:10:52 GMT
server
cloudflare
etag
W/"642b32cc-df3"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=rWuO7Iix2C0wIBXnw5ps59qL3GDRAzfF18yrvhWQD0oTFDd0J7nn04VpKblGFKYXiwPcdCL%2B3e4gmgHGZyFeIf0NhPZJVWh3clKVco6Y7J7YIupkt3aL1z6tZM4%2FWdUR%2B%2F2hN5WCiBri19PIRg%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type
text/css
access-control-allow-origin
*
cache-control
public, max-age=604800
cf-ray
7b7a971b7a219b9a-FRA
expires
Fri, 21 Apr 2023 07:43:13 GMT
clear.css
codeforces.org/s/96947/css/ 		924 B
763 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://codeforces.org/s/96947/css/clear.css
Requested by
Host: codeforces.com
URL: https://codeforces.com/contest/935/problem/A
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
69f4bf2788a05fd1807be7affa25fb7636aeb5e2f73b8627ccaecdb3266a332d

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://codeforces.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

date
Fri, 14 Apr 2023 08:31:02 GMT
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age
2869
cf-polished
origSize=1106
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
pragma
public
cf-bgj
minify
last-modified
Mon, 03 Apr 2023 20:10:52 GMT
server
cloudflare
etag
W/"642b32cc-452"
vary
Accept-Encoding
report-to
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QUIC, , AES_128_GCM
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2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
cc5737c065843b681196d5b682db5c8b47f653ca1427985b19245fef04412696

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://codeforces.org/s/96947/css/second-level-menu.css
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

date
Fri, 14 Apr 2023 08:31:03 GMT
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age
3187
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
140
pragma
public
last-modified
Sat, 15 May 2021 13:25:07 GMT
server
cloudflare
etag
"609fcbb3-8c"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=qjEaPV9s9UMvUqnYxeIP0Mi8bwuzJnYSnsdlRDWX20dZuQu8F2ILqSAZWpArJ9MqD2QOD3Of%2FQrLs1oo4Ny0ANvhkHUqeFIboOGl9bR9rlRVedw3uH7LVSHyxU9WhtF7E7dgHLK8qsVIirWf0Q%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type
image/png
access-control-allow-origin
*
cache-control
public, max-age=604800
accept-ranges
bytes
cf-ray
7b7a971e79aa2bac-FRA
expires
Fri, 21 Apr 2023 07:37:55 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=290106440&utmhn=codeforces.com&utmcs=UTF-8&utmsr=1600x1200&utmvp=1600x1200&utmsc=24-bit&utmul=en-us&utmje=0&utmfl=-&utmdt=Problem%20-%20A%20-%20Codeforces&utmhid=658711744&utmr=-&utmp=%2Fcontest%2F935%2Fproblem%2FA&utmht=1681461063525&utmac=UA-743380-5&utmcc=__utma%3D71512449.78175849.1681461064.1681461064.1681461064.1%3B%2B__utmz%3D71512449.1681461064.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmjid=304315518&utmredir=1&utmu=qAAAAAAAAAAAAAAAAAAAAAAE~
Requested by
Host: codeforces.com
URL: https://codeforces.com/contest/935/problem/A
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:810::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
8337212354871836e6763a41e615916c89bac5b3f1f0adf60ba43c7c806e1015
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://codeforces.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

pragma
no-cache
date
Fri, 14 Apr 2023 08:31:03 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
TeX-AMS_HTML-full.js
cdn-mathjax.codeforces.com/config/ 		309 KB
93 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://cdn-mathjax.codeforces.com/config/TeX-AMS_HTML-full.js?V=2.7.9
Requested by
Host: cdn-mathjax.codeforces.com
URL: https://cdn-mathjax.codeforces.com/MathJax.js?config=TeX-AMS_HTML-full
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
195.123.220.85 Meppel, Netherlands, ASN21100 (ITLDC-NL, UA),
Reverse DNS
vds-955881.hosted-by-itldc.com
Software
nginx/1.18.0 (Ubuntu) /
Resource Hash
7a2e7c47a60d38b1d3257694183099bfb9adff235499ddb64f4aae7724e55691

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://codeforces.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

pragma
public
date
Fri, 14 Apr 2023 08:31:03 GMT
content-encoding
gzip
last-modified
Thu, 01 Apr 2021 14:23:35 GMT
server
nginx/1.18.0 (Ubuntu)
etag
W/"6065d767-4d31d"
vary
Accept-Encoding
content-type
application/javascript
access-control-allow-origin
*
cache-control
max-age=172800, public
expires
Sun, 16 Apr 2023 08:31:03 GMT
fontdata.js
cdn-mathjax.codeforces.com/jax/output/HTML-CSS/fonts/TeX/ 		43 KB
14 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://cdn-mathjax.codeforces.com/jax/output/HTML-CSS/fonts/TeX/fontdata.js?V=2.7.9
Requested by
Host: cdn-mathjax.codeforces.com
URL: https://cdn-mathjax.codeforces.com/MathJax.js?config=TeX-AMS_HTML-full
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
195.123.220.85 Meppel, Netherlands, ASN21100 (ITLDC-NL, UA),
Reverse DNS
vds-955881.hosted-by-itldc.com
Software
nginx/1.18.0 (Ubuntu) /
Resource Hash
d5078e8f2ca49558b584db207ee0999279b662ac5171548234c9428c6e722ab8

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://codeforces.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

pragma
public
date
Fri, 14 Apr 2023 08:31:03 GMT
content-encoding
gzip
last-modified
Thu, 01 Apr 2021 14:36:04 GMT
server
nginx/1.18.0 (Ubuntu)
etag
W/"6065da54-ad3d"
vary
Accept-Encoding
content-type
application/javascript
access-control-allow-origin
*
cache-control
max-age=172800, public
expires
Sun, 16 Apr 2023 08:31:03 GMT
MathJax_Main-Regular.woff
cdn-mathjax.codeforces.com/fonts/HTML-CSS/TeX/woff/ 		33 KB
34 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://cdn-mathjax.codeforces.com/fonts/HTML-CSS/TeX/woff/MathJax_Main-Regular.woff?V=2.7.9
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
195.123.220.85 Meppel, Netherlands, ASN21100 (ITLDC-NL, UA),
Reverse DNS
vds-955881.hosted-by-itldc.com
Software
nginx/1.18.0 (Ubuntu) /
Resource Hash
55c77dfef369aee9bf4058c15f01b7d8c245177cd0e2a6ecb1d1ae71a7443d6f

Request headers

Referer
https://codeforces.com/
Origin
https://codeforces.com
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

pragma
public
date
Fri, 14 Apr 2023 08:31:04 GMT
last-modified
Thu, 01 Apr 2021 14:23:39 GMT
server
nginx/1.18.0 (Ubuntu)
etag
"6065d76b-8574"
content-type
font/woff
access-control-allow-origin
*
cache-control
max-age=172800, public
accept-ranges
bytes
content-length
34164
expires
Sun, 16 Apr 2023 08:31:04 GMT
MathJax_Math-Italic.woff
cdn-mathjax.codeforces.com/fonts/HTML-CSS/TeX/woff/ 		19 KB
19 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://cdn-mathjax.codeforces.com/fonts/HTML-CSS/TeX/woff/MathJax_Math-Italic.woff?V=2.7.9
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
195.123.220.85 Meppel, Netherlands, ASN21100 (ITLDC-NL, UA),
Reverse DNS
vds-955881.hosted-by-itldc.com
Software
nginx/1.18.0 (Ubuntu) /
Resource Hash
8db815a915b38f569e5c06686cae5489a9a396607915fdc21eeb052e61d6c27c

Request headers

Referer
https://codeforces.com/
Origin
https://codeforces.com
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

pragma
public
date
Fri, 14 Apr 2023 08:31:04 GMT
last-modified
Thu, 01 Apr 2021 14:23:39 GMT
server
nginx/1.18.0 (Ubuntu)
etag
"6065d76b-4b9c"
content-type
font/woff
access-control-allow-origin
*
cache-control
max-age=172800, public
accept-ranges
bytes
content-length
19356
expires
Sun, 16 Apr 2023 08:31:04 GMT
MathJax_Size1-Regular.woff
cdn-mathjax.codeforces.com/fonts/HTML-CSS/TeX/woff/ 		6 KB
6 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://cdn-mathjax.codeforces.com/fonts/HTML-CSS/TeX/woff/MathJax_Size1-Regular.woff?V=2.7.9
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, CHACHA20_POLY1305
Server
195.123.220.85 Meppel, Netherlands, ASN21100 (ITLDC-NL, UA),
Reverse DNS
vds-955881.hosted-by-itldc.com
Software
nginx/1.18.0 (Ubuntu) /
Resource Hash
2cf985fbe70694eda52314ccab5a052a177691e05d90c0be44d05e57da22d001

Request headers

Referer
https://codeforces.com/
Origin
https://codeforces.com
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.49 Safari/537.36

Response headers

pragma
public
date
Fri, 14 Apr 2023 08:31:04 GMT
last-modified
Thu, 01 Apr 2021 14:23:39 GMT
server
nginx/1.18.0 (Ubuntu)
etag
"6065d76b-16a0"
content-type
font/woff
access-control-allow-origin
*
cache-control
max-age=172800, public
accept-ranges
bytes
content-length
5792
expires
Sun, 16 Apr 2023 08:31:04 GMT

Verdicts & Comments Add Verdict or Comment

55 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.

boolean| credentialless function| $ function| jQuery function| adjustViewport string| locale boolean| standaloneContest undefined| DecorationsT undefined| JobT undefined| SourceSpansT boolean| IN_GLOBAL_SCOPE object| PR boolean| PR_SHOULD_USE_CONTINUATION function| prettyPrintOne function| prettyPrint function| moment function| PushStream object| PushStreamManager boolean| IE6 function| autosize function| q undefined| t boolean| u object| sjcl function| y function| z function| C function| A function| B object| D object| codeforcesOptions function| info function| debug function| error function| getLocalizedName function| appendParameterToUrl object| Codeforces object| CodeforcesIframe function| EventCatcher object| preparedVerdictFormats function| Confetti object| commentSettings object| completeSettings object| miu undefined| queryMobile undefined| useMobile object| _gaq function| getCodeforcesServerTime function| updateTypography object| eventCatcher object| changedTests object| jQuery1830839587187430211 function| updateDatatableFilter object| _gat object| gaGlobal object| MathJax

7 Cookies

Domain/Path Name / Value
codeforces.com/ Name: JSESSIONID
Value: 958BB3A2785340134C492900CA616AA4-n1
codeforces.com/ Name: 39ce7
Value: CFJ7BxBw
.codeforces.com/ Name: __utma
Value: 71512449.78175849.1681461064.1681461064.1681461064.1
.codeforces.com/ Name: __utmc
Value: 71512449
.codeforces.com/ Name: __utmz
Value: 71512449.1681461064.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)
.codeforces.com/ Name: __utmt
Value: 1
.codeforces.com/ Name: __utmb
Value: 71512449.1.10.1681461064

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=86400
X-Content-Type-Options nosniff
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.

cdn-mathjax.codeforces.com
codeforces.com
codeforces.org
fonts.googleapis.com
fonts.gstatic.com
ssl.google-analytics.com
195.123.220.85
2606:4700:3031::ac43:df46
2a00:1450:4001:810::2008
2a00:1450:4001:828::2003
2a00:1450:4001:830::200a
2a06:98c1:3120::3
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