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leetcode.com Open in urlscan Pro
2606:4700:10::6816:1bb5  Public Scan

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URL: https://leetcode.com/problems/reverse-pairs/solutions/97268/General-principles-behind-problems-similar-to-%22Reverse-...
Submission: On November 19 via api from ZA — Scanned from DE
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 3 IPs in 1 countries across 2 domains to perform 9 HTTP transactions. The main IP is 2606:4700:10::6816:1bb5, located in United States and belongs to CLOUDFLARENET, US. The main domain is leetcode.com. The Cisco Umbrella rank of the primary domain is 60510.
TLS certificate: Issued by WE1 on October 29th 2024. Valid for: 3 months.
This is the only time leetcode.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
3 2606:4700:10:... 13335 (CLOUDFLAR...)
2 2606:4700::68... 13335 (CLOUDFLAR...)
9 3
Apex Domain
Subdomains		 Transfer
3 leetcode.com
leetcode.com — Cisco Umbrella Rank: 60510
assets.leetcode.com Failed
54 KB
2 cloudflare.com
challenges.cloudflare.com — Cisco Umbrella Rank: 3147
16 KB
9 2
Domain Requested by
3 leetcode.com leetcode.com
2 challenges.cloudflare.com leetcode.com
challenges.cloudflare.com
0 assets.leetcode.com Failed leetcode.com
9 3

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

Domain
www.cloudflare.com
Subject Issuer Validity Valid
leetcode.com
WE1		 2024-10-29 -
2025-01-27		 3 months crt.sh
challenges.cloudflare.com
WE1		 2024-11-03 -
2025-02-01		 3 months crt.sh

This page contains 2 frames:

Primary Page: https://leetcode.com/problems/reverse-pairs/solutions/97268/General-principles-behind-problems-similar-to-%22Reverse-Pairs%22/
Frame ID: FAF20141B1C91387ABB3A1FD43AFE436
Requests: 6 HTTP requests in this frame

Frame: https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/turnstile/if/ov2/av0/rcv0/0/nwk3l/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/normal/auto/
Frame ID: 405B5C65B363F7DDCA17E5B574D902E5
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

Nur einen Moment…

Page Statistics

9
Requests

56 %
HTTPS

100 %
IPv6

2
Domains

3
Subdomains

3
IPs

1
Countries

70 kB
Transfer

166 kB
Size

1
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 3
  • https://leetcode.com/favicon.ico HTTP 301
  • https://assets.leetcode.com/static_assets/public/icons/favicon.ico
Request Chain 7
  • https://leetcode.com/favicon.ico HTTP 301
  • https://assets.leetcode.com/static_assets/public/icons/favicon.ico

9 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
leetcode.com/problems/reverse-pairs/solutions/97268/General-principles-behind-problems-similar-to-%22Reverse-Pairs%22/ 		11 KB
9 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://leetcode.com/problems/reverse-pairs/solutions/97268/General-principles-behind-problems-similar-to-%22Reverse-Pairs%22/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:10::6816:1bb5 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
e00576ceb82ae02652c2d142b84d40c6f3ee0adb9c7ed9e090600232a03a98f7
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN

Request headers

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

Response headers

accept-ch
Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
cache-control
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-chl-out
+N4WLJvTr51I9oluV0e3Mv0pTXF4woQ4yjN/icfgtfO2tEyyApcWb3exfMfW4npUPuPokMZLejkDElh4PAP7qv9110uLhNqix/EGr3f2Q2uplD7cKRlORMSwfO6rnzy7YLWFq1fiqWx9suhcM0KXnQ==$v+iqbkzr1PKA9YOWdeVpEg==
cf-mitigated
challenge
cf-ray
8e50b12d4fd437e9-FRA
content-encoding
br
content-type
text/html; charset=UTF-8
critical-ch
Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
cross-origin-embedder-policy
require-corp
cross-origin-opener-policy
same-origin
cross-origin-resource-policy
same-origin
date
Tue, 19 Nov 2024 13:54:25 GMT
expires
Thu, 01 Jan 1970 00:00:01 GMT
origin-agent-cluster
?1
permissions-policy
accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
referrer-policy
same-origin
server
cloudflare
strict-transport-security
max-age=31536000; includeSubDomains; preload
vary
Accept-Encoding
x-content-options
nosniff
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN
v1
leetcode.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/ 		95 KB
36 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://leetcode.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=8e50b12d4fd437e9
Requested by
Host: leetcode.com
URL: https://leetcode.com/problems/reverse-pairs/solutions/97268/General-principles-behind-problems-similar-to-%22Reverse-Pairs%22/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:10::6816:1bb5 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
08fd5d2f3fdb951aa846085ec89f7fcb444d0fbe1c94f28f6a131f241af17fd2
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer
https://leetcode.com/problems/reverse-pairs/solutions/97268/General-principles-behind-problems-similar-to-%22Reverse-Pairs%22/?__cf_chl_rt_tk=JN7UiyV4rMgXKyhod47ieLW2pbTXYksPoOOwSPw_rXQ-1732024465-1.0.1.1-62xoFPkFe3xz5cwmEj69JyTzOM.CoM3xp76X6oDtXAw

Response headers

strict-transport-security
max-age=31536000; includeSubDomains; preload
cache-control
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
content-encoding
br
x-content-type-options
nosniff
cf-ray
8e50b12e287137e9-FRA
date
Tue, 19 Nov 2024 13:54:25 GMT
content-type
application/javascript; charset=UTF-8
server
cloudflare
fb35f134-885e-4997-a8c0-63db91974725
https://leetcode.com/ Frame 		0
0
api.js
challenges.cloudflare.com/turnstile/v0/b/22755d9a86c9/ 		47 KB
16 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://challenges.cloudflare.com/turnstile/v0/b/22755d9a86c9/api.js?onload=clJo2&render=explicit
Requested by
Host: leetcode.com
URL: https://leetcode.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=8e50b12d4fd437e9
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
2606:4700::6812:5f29 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
b7595c3d2e94df7416308fa2ccf5ae8832137c76d2e9a8b02e6ed2cb2d92e2f7

Request headers

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

Response headers

server
cloudflare
cache-control
max-age=31536000, stale-if-error=10800, stale-while-revalidate=31536000, public
content-encoding
br
cross-origin-resource-policy
cross-origin
cf-ray
8e50b12ed81cdc94-FRA
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Tue, 19 Nov 2024 13:54:25 GMT
content-type
application/javascript; charset=UTF-8
last-modified
Mon, 28 Oct 2024 19:08:47 GMT
vary
Accept-Encoding
priority
u=3,i=?0
favicon.ico
assets.leetcode.com/static_assets/public/icons/
Redirect Chain
  • https://leetcode.com/favicon.ico
  • https://assets.leetcode.com/static_assets/public/icons/favicon.ico
0
0
sU87wKRvyVFL9NaF.pdrB.9gmj6E3RwfRauKNwbbKKQ-1732024465-1.2.1.1-BgHETBkVIcb_0EdfOjFAKx7sip690tpg1RcZ9JbkoQuUP4pAuCtYCCNJCQ.1MlsY
leetcode.com/cdn-cgi/challenge-platform/h/b/flow/ov1/1925052183:1732023684:ViUw2_04zMiw-KEcruB7jaDRO_8bXNnzMmsa5hB6daw/8e50b12d4fd437e9/ 		13 KB
9 KB 		XHR
General
Check archive.org
Download Go to
Full URL
https://leetcode.com/cdn-cgi/challenge-platform/h/b/flow/ov1/1925052183:1732023684:ViUw2_04zMiw-KEcruB7jaDRO_8bXNnzMmsa5hB6daw/8e50b12d4fd437e9/sU87wKRvyVFL9NaF.pdrB.9gmj6E3RwfRauKNwbbKKQ-1732024465-1.2.1.1-BgHETBkVIcb_0EdfOjFAKx7sip690tpg1RcZ9JbkoQuUP4pAuCtYCCNJCQ.1MlsY
Requested by
Host: leetcode.com
URL: https://leetcode.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=8e50b12d4fd437e9
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:10::6816:1bb5 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
5073c0a63f275e1500aac9583a3e2604ca9a570f3c6b278b8db2ab680dbbd7bf
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Referer
https://leetcode.com/problems/reverse-pairs/solutions/97268/General-principles-behind-problems-similar-to-%22Reverse-Pairs%22/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Content-type
application/x-www-form-urlencoded
CF-Challenge
sU87wKRvyVFL9NaF.pdrB.9gmj6E3RwfRauKNwbbKKQ-1732024465-1.2.1.1-BgHETBkVIcb_0EdfOjFAKx7sip690tpg1RcZ9JbkoQuUP4pAuCtYCCNJCQ.1MlsY

Response headers

strict-transport-security
max-age=31536000; includeSubDomains; preload
content-encoding
br
x-content-type-options
nosniff
cf-ray
8e50b12f599237e9-FRA
date
Tue, 19 Nov 2024 13:54:25 GMT
content-type
text/plain; charset=UTF-8
cf-chl-gen
bYu3sMh80rWUodYI+n44Eq0fIuvFFJaVhcg/JPqJYlVc8eCVD7Tj9DtRps2bFu+ILYpUkuEC9wU=$f3O0308Q3CjF5vKw
server
cloudflare
9a6771db-070f-4859-83d4-00887bb11f93
https://leetcode.com/ Frame 		0
0
/
challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/turnstile/if/ov2/av0/rcv0/0/nwk3l/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/normal/auto/ Frame 405B 		0
0 		Document
General
Check archive.org
Download Go to
Full URL
https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/turnstile/if/ov2/av0/rcv0/0/nwk3l/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/normal/auto/
Requested by
Host: challenges.cloudflare.com
URL: https://challenges.cloudflare.com/turnstile/v0/b/22755d9a86c9/api.js?onload=clJo2&render=explicit
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
2606:4700::6812:5f29 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
Security Headers
Name Value
Content-Security-Policy frame-src https://challenges.cloudflare.com/; base-uri 'self'

Request headers

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

Response headers

accept-ch
Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
alt-svc
h3=":443"; ma=86400
cache-control
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-ray
8e50b1300fcb371d-FRA
content-encoding
br
content-security-policy
frame-src https://challenges.cloudflare.com/; base-uri 'self'
content-type
text/html; charset=UTF-8
critical-ch
Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
cross-origin-embedder-policy
require-corp
cross-origin-opener-policy
same-origin
cross-origin-resource-policy
cross-origin
date
Tue, 19 Nov 2024 13:54:25 GMT
document-policy
js-profiling
origin-agent-cluster
?1
permissions-policy
accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
priority
u=0,i
referrer-policy
same-origin
server
cloudflare
server-timing
cfExtPri
favicon.ico
assets.leetcode.com/static_assets/public/icons/
Redirect Chain
  • https://leetcode.com/favicon.ico
  • https://assets.leetcode.com/static_assets/public/icons/favicon.ico
0
0

Failed requests

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

Domain
leetcode.com
URL
blob:https://leetcode.com/fb35f134-885e-4997-a8c0-63db91974725
Domain
assets.leetcode.com
URL
https://assets.leetcode.com/static_assets/public/icons/favicon.ico
Domain
leetcode.com
URL
blob:https://leetcode.com/9a6771db-070f-4859-83d4-00887bb11f93
Domain
assets.leetcode.com
URL
https://assets.leetcode.com/static_assets/public/icons/favicon.ico

Verdicts & Comments Add Verdict or Comment

21 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| _cf_chl_opt function| ffEge4 function| KgUqI5 function| FSJw6 function| LHBfo4 function| Hflll3 function| dSYW4 object| bosx7 object| CKFVO1 function| clJo2 boolean| HUIps4 function| hHfja4 object| djRVl6 number| iDKaN3 object| angular object| mJquG1 object| turnstile boolean| xafPL6 function| _ string| QrYdH7 boolean| IXMd3

1 Cookies

Domain/Path Name / Value
.leetcode.com/ Name: __cf_bm
Value: u9MI5mRGDtuiQBTxdKKUrpi.oY31idnKZX6L.3fCgUw-1732024465-1.0.1.1-sUWw4wJz53pv.WoJp90gIRYiMhK.Z3XOcall7hCRI4SEuSVi374lUJKvcZ5pqZc90C8nWAaOte5wXaSSYaPQ.A

3 Console Messages

Source Level URL
Text
network error URL: https://leetcode.com/problems/reverse-pairs/solutions/97268/General-principles-behind-problems-similar-to-%22Reverse-Pairs%22/
Message:
Failed to load resource: the server responded with a status of 403 ()
network error URL: https://assets.leetcode.com/static_assets/public/icons/favicon.ico
Message:
Failed to load resource: net::ERR_BLOCKED_BY_RESPONSE.NotSameOriginAfterDefaultedToSameOriginByCoep
network error URL: https://assets.leetcode.com/static_assets/public/icons/favicon.ico
Message:
Failed to load resource: net::ERR_BLOCKED_BY_RESPONSE.NotSameOriginAfterDefaultedToSameOriginByCoep

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=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN