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Surveys

Langfuse

Surveys
monitor Exposure
v850623cb
A JavaScript library for embedding and managing user surveys, primarily used for collecting feedback within applications.
10M+ sites
Updated 7/26/2026
https://ph.langfuse.com/static/surveys.js?v=1.406.2
Exposure Score
92

Popularity

92%

Usage across websites

File Size

95.27 KB

Download size

Load Time

29.46ms

Network latency

Execution Time

2.70ms

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

0255075100v8506Normalized ScoreVersion
Security Score
Performance Score
File Size (KB)

Uptime History

Average response time over time

Version History Details

Detailed information for each version

v850623cbLatest
Span: 5 days
Score: 85
Size: 95.27 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

_lf_survey_sessionSession
Used to track survey state or user progress within a survey session.
_lf_survey_shown30 days
Used to record if a specific survey has been shown to a user to manage display frequency.

Local Storage

lf_survey_shown_*
Stores a flag indicating if a survey has been shown to the user to manage display frequency.
lf_survey_response_*
Stores partial survey responses locally before submission, or survey completion 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 Size95.27 KB
Load Time29.46ms

Runtime Performance

Execution Time2.70ms
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

extendPostHogWithSurveys

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
54
Is Mirror
No
Network Requests
0
Resource Hash
850623cbcebd1863d338ff284b300ed07aa274d94284787e428d63f95c389a77

AI Insights & Alternatives

Description

A comprehensive overview of this resource

This script, `surveys.js`, is part of the Langfuse platform, designed to facilitate the deployment and management of in-app surveys. It typically loads a survey widget or form onto a website, allowing site visitors to provide feedback directly. The script handles the display logic, user interaction with survey questions (e.g., multiple choice, free text), and the submission of survey responses. It ensures that data collected from these surveys is transmitted securely to the Langfuse backend for analysis and processing. This enables product teams and developers to gather qualitative user insights, measure satisfaction, and identify areas for improvement, especially relevant for applications leveraging large language models (LLMs) given Langfuse's core focus.

Key Features

Core functionalities and capabilities of this resource

  • In-app surveys
  • Feedback collection
  • User sentiment analysis
  • Customizable survey forms
  • Data submission

Alternatives

Similar libraries you might consider

Documentation & Resources

Official Documentation