www.4byte.directory - urlscan.io

Summary

This website contacted 2 IPs in 2 countries across 1 domains to perform 5 HTTP transactions. The main IP is 2a06:98c1:3121::3, located in United States and belongs to CLOUDFLARENET, US. The main domain is www.4byte.directory. The Cisco Umbrella rank of the primary domain is 303452.
TLS certificate: Issued by GTS CA 1P5 on February 18th 2024. Valid for: 3 months.

This is the only time www.4byte.directory was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
1 2	2a06:98c1:312... 2a06:98c1:3121::3	13335 (CLOUDFLAR...) (CLOUDFLARENET)
4	188.114.96.3 188.114.96.3	13335 (CLOUDFLAR...) (CLOUDFLARENET)
5	2

2 2a06:98c1:3121::3 (United States) 1 redirects

ASN13335 (CLOUDFLARENET, US)

4byte.directory	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
www.4byte.directory	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 188.114.96.3 (Amsterdam, Netherlands)

ASN13335 (CLOUDFLARENET, US)

www.4byte.directory	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
6	4byte.directory 1 redirects 4byte.directory — Cisco Umbrella Rank: 303056 www.4byte.directory — Cisco Umbrella Rank: 303452	27 KB
5	1

	Domain	Requested by
5	www.4byte.directory	www.4byte.directory
1	4byte.directory	1 redirects
5	2

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

Domain
github.com
beaconcha.in

Subject Issuer	Validity	Valid
4byte.directory GTS CA 1P5	`2024-02-18` - `2024-05-18`	3 months	crt.sh

This page contains 1 frames:

Primary Page: https://www.4byte.directory/
Frame ID: 4AE254249CAEECC47222C10931BBC5DA
Requests: 5 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Ethereum Signature Database

Page URL History Show full URLs

http://4byte.directory/ HTTP 307
https://4byte.directory/ HTTP 301
https://www.4byte.directory/ Page URL

Detected technologies

Bootstrap (Web Frameworks) Expand

Overall confidence: 100%
Detected patterns

<link[^>]* href=[^>]*?bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.css

Page Statistics

5
Requests

100 %
HTTPS

50 %
IPv6

1
Domains

2
Subdomains

2
IPs

2
Countries

27 kB
Transfer

151 kB
Size

0
Cookies

3 Outgoing links

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

URL: https://github.com/gobitfly/ethereum-function-signature-registry
Title: Github Project Page

Search URL Search Domain Scan URL

URL: https://github.com/gobitfly/ethereum-function-signature-registry/issues/new
Title: File an issue

Search URL Search Domain Scan URL

URL: https://beaconcha.in/
Title: beaconcha.in

Search URL Search Domain Scan URL

Page URL History

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

http://4byte.directory/ HTTP 307
https://4byte.directory/ HTTP 301
https://www.4byte.directory/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

5 HTTP transactions
0 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2

200

Primary Request / Show response
www.4byte.directory/
Redirect Chain

http://4byte.directory/
https://4byte.directory/
https://www.4byte.directory/

4 KB
2 KB

141ms
132ms

Document
text/html

2a06:98c1:3121::3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.4byte.directory/

Protocol

H2

Security

TLS 1.3, , AES_128_GCM

Server

2a06:98c1:3121::3 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

27f9693185a83c4e2737290a52a98ad0de50fa8db915a191820744056d2b7dd7

Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
accept-language: nl-NL,nl;q=0.9

Response headers

alt-svc: h3=":443"; ma=86400
cf-cache-status: DYNAMIC
cf-ray: 86e5c8478f461c9e-AMS
content-encoding: br
content-type: text/html; charset=utf-8
date: Wed, 03 Apr 2024 02:55:53 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=kCzXotqCqD6E4RKOXb%2Bii72hfdaPDOj3Zaxfveo0vJua1TQky4X9IsPKJLKnTD9wmoKEBSXX6OnsjbLsA7ZiayU9Oi58PO3K2plArsB3DQ4PfLCGC6WcdBfPN46oZOgTF1LWY7GSF%2Fm6PGxCgtCYjvgt"}],"group":"cf-nel","max_age":604800}
server: cloudflare
x-frame-options: SAMEORIGIN

Redirect headers

alt-svc: h3=":443"; ma=86400
cache-control: max-age=3600
cf-ray: 86e5c8475f211c9e-AMS
date: Wed, 03 Apr 2024 02:55:53 GMT
expires: Wed, 03 Apr 2024 03:55:53 GMT
location: https://www.4byte.directory/
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=q5GeMqON7xVnv5m7lu3cBWTbX78Q08fTqZ%2FR5kpv6onJEoNfJ%2FvkaXAXcxcXVpYVDH77e8Lnb0NKeloYClG6mCRkL2r89kzJ%2FwbQkxAI2ctz83Zst89xiZXhzdOQECf4nZazgg2MKyndZXw%2F7pA%3D"}],"group":"cf-nel","max_age":604800}
server: cloudflare
vary: Accept-Encoding

GET
H3 200 project.css
www.4byte.directory/static/css/ 689 B
814 B 85ms
84ms Stylesheet
text/css 188.114.96.3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://www.4byte.directory/static/css/project.css
Requested by: Host: www.4byte.directory
URL: https://www.4byte.directory/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 188.114.96.3 Amsterdam, Netherlands, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 2c4162c03950a17d63aee6e38c393347bf747474477d62a29eaf87de11acac6c

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://www.4byte.directory/
accept-language: nl-NL,nl;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Wed, 03 Apr 2024 02:55:53 GMT
content-encoding: br
cf-cache-status: REVALIDATED
last-modified: Fri, 27 Oct 2023 09:30:17 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
etag: W/"653b8329-2b1"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=1%2BbOSU0NBerYAx6A5q6TFTc4tq27GfvtmqPRhlzcsZVqvVhCbUq2R0srCt3pr%2FkMn6MbVzY9sArx0Ut634Q%2BWm9pOKxhi605yPIg1druk4NnfPbNNzjNPNtZtWCrKXpJy1P8cTSF"}],"group":"cf-nel","max_age":604800}
content-type: text/css
cache-control: max-age=14400
cf-ray: 86e5c8486eea0a68-AMS
alt-svc: h3=":443"; ma=86400

GET
H3 200 bootstrap.min.css
www.4byte.directory/static/css/ 118 KB
20 KB 86ms
86ms Stylesheet
text/css 188.114.96.3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://www.4byte.directory/static/css/bootstrap.min.css
Requested by: Host: www.4byte.directory
URL: https://www.4byte.directory/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 188.114.96.3 Amsterdam, Netherlands, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: eece6e0c65b7007ab0eb1b4998d36dafe381449525824349128efc3f86f4c91c

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://www.4byte.directory/
accept-language: nl-NL,nl;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Wed, 03 Apr 2024 02:55:53 GMT
content-encoding: br
cf-cache-status: REVALIDATED
last-modified: Fri, 27 Oct 2023 09:30:17 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
etag: W/"653b8329-1d9ac"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=8RKHAnMK%2FoFhYrjnyI9UAs5KaGIpEwbMgDi6Efb4qY%2Bhcyt6RGXkJdFXnK2YiBKLmlokDqlG9T%2FpXi9HVv7yMthe9nvT1xhERqjBd9Y281k4anFOAxtmrbnhS84ITbBR60UOI7Hz"}],"group":"cf-nel","max_age":604800}
content-type: text/css
cache-control: max-age=14400
cf-ray: 86e5c8486eeb0a68-AMS
alt-svc: h3=":443"; ma=86400

GET
H3 200 bootstrap-theme.min.css
www.4byte.directory/static/css/ 23 KB
3 KB 103ms
103ms Stylesheet
text/css 188.114.96.3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://www.4byte.directory/static/css/bootstrap-theme.min.css
Requested by: Host: www.4byte.directory
URL: https://www.4byte.directory/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 188.114.96.3 Amsterdam, Netherlands, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: a3c6ccd19e5c16faefbef429d042458b82c80af040f450b1ee208dba88d5b0df

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://www.4byte.directory/
accept-language: nl-NL,nl;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Wed, 03 Apr 2024 02:55:53 GMT
content-encoding: br
cf-cache-status: REVALIDATED
last-modified: Fri, 27 Oct 2023 09:30:17 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
etag: W/"653b8329-5b71"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=nJw%2BqW2FWtSXYdF2fgRThtJB0FSFPrxmZvbRPUGm7UA%2FBlBTf7hC%2F37U25roUeWiDSS2Hpoz%2FJh%2F6%2BJiocHJ01dtwlEaxAjUWy1ccqMf%2BRZLP5%2FeKc%2BjFThCjACoE1Dv61uCYLpZ"}],"group":"cf-nel","max_age":604800}
content-type: text/css
cache-control: max-age=14400
cf-ray: 86e5c8486eed0a68-AMS
alt-svc: h3=":443"; ma=86400

GET
H3 200 favicon.ico
www.4byte.directory/static/images/ 5 KB
969 B 83ms
82ms Other
image/x-icon 188.114.96.3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://www.4byte.directory/static/images/favicon.ico
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 188.114.96.3 Amsterdam, Netherlands, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 716992947a65788148adc51ad81ce67f7fa88865f6aff0e557e5111269b72299

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://www.4byte.directory/
accept-language: nl-NL,nl;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Wed, 03 Apr 2024 02:55:53 GMT
content-encoding: br
cf-cache-status: REVALIDATED
last-modified: Fri, 27 Oct 2023 09:30:18 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
etag: W/"653b832a-1536"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=PcIRm%2BYOCF8Dry0efqmL2Fy7vkrsDnt7cpUM9xClKUSLTRMdmu4od6ENybWgGEz1CUHpkT2AD9p%2B7Fqij3CyaRLdMsYzj9eNEuCfunsvARpet%2BJq2cRd0oQW%2FKkDuud3qTYdjHGk"}],"group":"cf-nel","max_age":604800}
content-type: image/x-icon
cache-control: max-age=14400
cf-ray: 86e5c8491f380a68-AMS
alt-svc: h3=":443"; ma=86400

Verdicts & Comments Add Verdict or Comment

1 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| onpagereveal

0 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

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

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.

4byte.directory
www.4byte.directory
188.114.96.3
2a06:98c1:3121::3
27f9693185a83c4e2737290a52a98ad0de50fa8db915a191820744056d2b7dd7
2c4162c03950a17d63aee6e38c393347bf747474477d62a29eaf87de11acac6c
716992947a65788148adc51ad81ce67f7fa88865f6aff0e557e5111269b72299
a3c6ccd19e5c16faefbef429d042458b82c80af040f450b1ee208dba88d5b0df
eece6e0c65b7007ab0eb1b4998d36dafe381449525824349128efc3f86f4c91c

www.4byte.directory Open in urlscan Pro 2a06:98c1:3121::3 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Detected technologies

Page Statistics

5 Requests

100 %HTTPS

50 %IPv6

1 Domains

2 Subdomains

2 IPs

2 Countries

27 kBTransfer

151 kBSize

0 Cookies

3 Outgoing links

Page URL History

Redirected requests

5 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

Request headers

Response headers

Redirect headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Verdicts & Comments Add Verdict or Comment

1 JavaScript Global Variables

0 Cookies

Security Headers

Indicators

www.4byte.directory Open in urlscan Pro
2a06:98c1:3121::3 Public Scan

Screenshot
Live screenshot

Full Image

5
Requests

100 %
HTTPS

50 %
IPv6

1
Domains

2
Subdomains

2
IPs

2
Countries

27 kB
Transfer

151 kB
Size

0
Cookies

5 HTTP transactions
0 data transactions