Submitted URL: http://cdn.socket.io/ 12yr old
Effective URL: https://cdn.socket.io/ 12yr old
Submission: On November 20 via manual from ES — Scanned from ES

Summary

This website contacted 2 IPs in 1 countries across 1 domains to perform 2 HTTP transactions. The main IP is 18.245.31.78, located in United States and belongs to AMAZON-02, US. The main domain is cdn.socket.io. The Cisco Umbrella rank of the primary domain is 32801. 12yr old
TLS certificate: Issued by Amazon RSA 2048 M03 on August 18th 2025. Valid for: 1yr.
This is the only time cdn.socket.io was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
2 18.245.31.78 16509 (AMAZON-02)
2 2
Apex Domain
Subdomains
Transfer
2 socket.io
cdn.socket.io — Cisco Umbrella Rank: 32801 12yr old
31 KB
2 1
Domain Requested by
2 cdn.socket.io
2 1

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

Domain
vercel.com
Subject Issuer Validity Valid
cdn.socket.io
Amazon RSA 2048 M03
2025-08-18 -
2026-09-14
1yr crt.sh

This page contains 1 frames:

Primary Page: https://cdn.socket.io/
Frame ID: D36E05D718B85C53221047D925F3861F
Requests: 4 HTTP requests in this frame

Screenshot

Page Title

Files within /

Page URL History Show full URLs

  1. http://cdn.socket.io/ HTTP 307
    https://cdn.socket.io/ Page URL

Page Statistics

2
Requests

100 %
HTTPS

0 %
IPv6

1
Domains

1
Subdomains

2
IPs

1
Countries

31 kB
Transfer

31 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. http://cdn.socket.io/ HTTP 307
    https://cdn.socket.io/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

2 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
cdn.socket.io/
Redirect Chain
  • http://cdn.socket.io/
  • https://cdn.socket.io/
30 KB
30 KB
Document
General
Full URL
https://cdn.socket.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
18.245.31.78 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-18-245-31-78.fra56.r.cloudfront.net
Software
Vercel /
Resource Hash
9867e0052c49dc5ae6d857b2ec62cd250c88d397a038500f3aec4e7140e9f8ee
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Response headers

cache-control
public, max-age=0, must-revalidate
content-length
30667
date
Thu, 20 Nov 2025 07:34:48 GMT
server
Vercel
strict-transport-security
max-age=63072000
via
1.1 851fdca2e1873274a995295ecd94732e.cloudfront.net (CloudFront)
x-amz-cf-id
OTn47BXV60AbjVgRvSMJPYat2lOJ2v1OXj7JNUkiTHeyvWTQx6jjTA==
x-amz-cf-pop
FRA56-P8
x-cache
Miss from cloudfront
x-vercel-id
fra1::l6gvr-1763624088074-810df13a1d8a

Redirect headers

Location
https://cdn.socket.io/
Non-Authoritative-Reason
HttpsUpgrades
truncated
/
733 B
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
453e646a7f1a7c170b49bad28b137b41d5d30fb8c4ab3118316fc89a16e7982d

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
Referer

Response headers

Content-Type
image/svg+xml
truncated
/
293 B
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
86cceac32113f79f22347fef769961ea2192523e3bfecc245934aa66605cedcc

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
Referer

Response headers

Content-Type
image/svg+xml
favicon.ico
cdn.socket.io/
79 B
465 B
Other
General
Full URL
https://cdn.socket.io/favicon.ico
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
18.245.31.78 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-18-245-31-78.fra56.r.cloudfront.net
Software
Vercel /
Resource Hash
595cfdccb305af7bf601ce8b2f15c04ca77e1ed2ec2b2eaec00dad192458411b
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
Referer
https://cdn.socket.io/

Response headers

strict-transport-security
max-age=63072000
cache-control
public, max-age=31536000, immutable
x-vercel-error
NOT_FOUND
age
19334
via
1.1 851fdca2e1873274a995295ecd94732e.cloudfront.net (CloudFront)
x-cache
Error from cloudfront
content-length
79
x-amz-cf-id
y-WmiPUdNIBJwN1BKBjkkQr-pOAXsonPIR-vUfR2bAbRas8WFcQ-AA==
date
Thu, 20 Nov 2025 02:12:34 GMT
content-type
text/plain; charset=utf-8
x-amz-cf-pop
FRA56-P8
server
Vercel
x-vercel-id
fra1::t7qjg-1763604754929-31098db39192

Verdicts & Comments Add Verdict or Comment

0 JavaScript Window variables

These are the non-standard variables defined on the window object. These include var declarations and global functions and can be helpful in identifying possible client-side frameworks and code.

0 Cookies

1 Console Messages

Source Level URL
Text
network error URL: https://cdn.socket.io/favicon.ico
Message:
Failed to load resource: the server responded with a status of 404 ()

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=63072000