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H3 837c8aa2cf11ef54

GitHub

Utilities
Needs review
vf7c6c4f2
A core JavaScript library used by GitHub to power interactive elements, UI components, and client-side functionalities for its web properties, potentially supporting embedded GitHub content or features on external websites.
Updated 11/4/2026
https://github.githubassets.com/assets/h3-837c8aa2cf11ef54.js
Overall Score
89

Recorded Observations

15

For this resource version

File Size

52.96 KB

Download size

Load Time

19.85ms

Network latency

Execution Time

0.00ms

Runtime performance

Version Telemetry

Version Timeline

Visual representation of each version's active period

Metrics Over Time

Security score, performance score, and file size trends

0255075100vf7c6Normalized ScoreVersion
Security Score
Performance Score
File Size (KB)

Uptime History

Average response time over time

Version History Details

Detailed information for each version

vf7c6c4f2Latest
Span: 2 days
Score: 79
Size: 52.96 KB

Exposure & Risks

Security Score

Overall Security79 / 100
Security RatingNeeds review

Risk Assessment

Critical Risks0
Total Observations1

Security Rating

Needs review
Behavioral concerns detected; review and mitigation are advised.

Behavioral Concerns

No Known Security Risks

Our telemetry scan did not detect any immediate behavioral security risks for this resource.

Security Observations

Security-related findings from analysis

No security observations recorded for this version

Privacy & Data Flow

Data Collection

Cookies and local storage used by this script

No cookies or local storage detected

Third-party Connections

External domains this script connects to

No external connections detected

Permissions Required

Browser permissions and capabilities used

No special browser permissions required.

Privacy Observations

Privacy-related findings from analysis

No privacy observations recorded for this version

Technical & Performance Analytics

Load Performance

File Size52.96 KB
Load Time19.85ms

Runtime Performance

Execution Time0.00ms
Network Requests0

Impact Assessment

Good
Minimal performance impact on page load

Performance Observations

Performance-related findings from analysis

No performance observations recorded for this version

Global Variables

Variables added to the global scope

No global variables detected

Event Listeners

Events this script listens for

No event listeners detected

Browser API Access

APIs and browser features accessed by this script

No API access detected

Technical Details

Compressed
Yes
CDN Delivery
No
Recorded Observations
15
Is Mirror
No
Network Requests
0
Resource Hash
f7c6c4f2bd53dba65b9175f2547dee9cd7d588f93013e839b130f500717176d3

AI Insights & Alternatives

Description

A comprehensive overview of this resource

This script, identified as 'h3-*.js', is a fundamental asset delivered by GitHub to manage various client-side operations across its web properties. When loaded as a third-party dependency, it primarily supports the rendering and interactive behavior of GitHub-related features or content embedded within the host website. This can include aspects like dynamic content loading, UI state management, and handling user interactions for widgets, Gist embeds, or custom integrations that rely on GitHub's ecosystem. It executes front-end logic to enhance the user experience and ensure the proper functioning of these GitHub-powered web components. The script's design focuses on efficiency and interactivity, providing the necessary code for complex web applications to run smoothly. It is generally not intended for independent use as a general-purpose library, but rather as an integral part of GitHub's own client-side architecture.

Key Features

Core functionalities and capabilities of this resource

  • Client-side scripting
  • UI interaction handling
  • Dynamic content rendering
  • Performance optimization
  • GitHub component support

Alternatives

Similar libraries you might consider

Documentation & Resources

Official Documentation