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Posthog Recorder

PostHog

Heatmaps & Session Replay
monitor Exposure
v68d21a46
A JavaScript library that captures user interactions and DOM changes to provide session replay functionality for website analytics and debugging.
10M+ sites
Updated 8/4/2026
https://us-assets.i.posthog.com/static/1.410.5/posthog-recorder.js
Exposure Score
92

Popularity

92%

Usage across websites

File Size

165.75 KB

Download size

Load Time

38.64ms

Network latency

Execution Time

4.50ms

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

0255075100v68d2Normalized ScoreVersion
Security Score
Performance Score
File Size (KB)

Uptime History

Average response time over time

Version History Details

Detailed information for each version

v68d21a46Latest
Span: 1 day
Score: 85
Size: 165.75 KB

Exposure & Risks

Security Score

Overall Security85 / 100
Exposure Levelmonitor

Risk Assessment

Critical Risks0
Total Observations1

Exposure Status

Monitor
Moderate behavioral concerns, review and mitigation 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

Cookies

ph_phc_*1 year
Used by PostHog to store a distinct ID for the user and record the time of their first visit, essential for linking session recordings to a specific user.
ph_current_session_id30 minutes (session-based)
Used to store the ID of the current recording session.

Local Storage

ph_current_session_id
Stores the ID of the current recording session to ensure continuity across page loads.
ph_last_event_time
Records the timestamp of the last captured event to determine session inactivity and session expiry.
ph_recorder_state
Stores the internal state of the session recorder to manage its lifecycle and current recording status.

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 Size165.75 KB
Load Time38.64ms

Runtime Performance

Execution Time4.50ms
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
Total Views
2
Is Mirror
No
Network Requests
0
Resource Hash
68d21a46a631bbc9af1c30c05e9f553b4f736486e8d88e0afda90aaf13ab28d1

AI Insights & Alternatives

Description

A comprehensive overview of this resource

This script, `posthog-recorder.js`, is part of the PostHog platform and is responsible for recording user sessions on a website. It captures a comprehensive set of user interactions, including mouse movements, clicks, scrolls, keyboard inputs, and changes to the Document Object Model (DOM). This data is then sent to PostHog's servers, allowing product teams and developers to visually replay user sessions exactly as they occurred. The primary purpose is to help identify usability issues, debug errors by seeing user context, and gain a deeper understanding of user behavior and customer journeys. The recording process typically runs in the background, collecting data without direct user interaction, and it is designed to be lightweight to minimize impact on website performance. It supports features like anonymization and data masking to ensure privacy compliance.

Key Features

Core functionalities and capabilities of this resource

  • Session Recording
  • User Replay
  • DOM Capture
  • Click Tracking
  • Scroll Tracking
  • Input Recording
  • Error Reproduction
  • User Behavior Analysis
  • Performance Monitoring

Alternatives

Similar libraries you might consider

Documentation & Resources

Official Documentation