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Documentation Index

Fetch the complete documentation index at: https://docs.tracelit.io/llms.txt

Use this file to discover all available pages before exploring further.

Install the latest version with npm install @tracelit/tracker@latest or update the CDN snippet to use https://cdn.tracelit.io/t.js (always points to latest).

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v1.2.6 — Apr 7, 2026

Latest Improvements
  • Reduced ESM bundle size by ~15% through dead-code elimination
  • Improved rrweb snapshot fidelity for dynamically rendered Shadow DOM components
  • More precise api_slow threshold reporting — now includes the full request URL in the error payload
Fixes
  • Fixed an edge case where stopReplay() called before startReplay() would throw a silent error in trigger mode
  • Fixed isOptedOut() returning stale values after optIn() was called in the same page session

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v1.2.5 — Apr 5, 2026

New
  • getActiveFeatures() — returns the list of currently active feature tag strings (docs)
  • monitorConsole option — opt in to capturing console.error and console.warn as error events (docs)
Improvements
  • identify() now emits a visual marker in the replay timeline at the exact moment it’s called
  • Debug mode logs now include a timestamp and event type prefix for easier filtering

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v1.2.1 — Apr 2, 2026

New
  • sampleRate replay option — record a fraction of sessions (e.g. 0.1 = 10%) to reduce data volume on high-traffic sites (docs)
  • blocklist now supports regex patterns in addition to path substrings
Fixes
  • Fixed history.pushState interception not firing on some Next.js 15 App Router navigations
  • Fixed memory warning events (memory error type) not emitting on Chrome 124+

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v1.0.13 — Mar 28, 2026

New
  • replay.mode: 'trigger' — recording only starts when startReplay() is called, perfect for high-traffic sites that only need recordings of specific flows (docs)
  • fullSnapshotIntervalMs option to control full DOM snapshot frequency
Improvements
  • destroy() now restores all monkey-patched globals (fetch, XMLHttpRequest, history.pushState, WebSocket, console.error) to their originals
  • Improved long_task source attribution — now includes component stack in supported browsers

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v1.0.0 — Mar 16, 2026

Initial release Tracelit tracker is live. Everything ships on day one:
  • Session replay powered by rrweb (< 20 KB gzipped CDN script)
  • Heatmaps and click tracking
  • Rage click detection
  • Scroll depth tracking
  • JavaScript error tracking (runtime, promise, resource)
  • API error tracking (api, api_slow, api_network, graphql)
  • Performance metrics (TTFB, LCP, FCP, page load)
  • Form interaction tracking (no values, ever)
  • Live visitor count
  • User identification via identify()
  • Session feature tagging via startReplay() / stopReplay()
  • Privacy controls: optOut(), optIn(), isOptedOut(), tl-block, tl-ignore
  • Do Not Track respected
  • No cookies, no PII, SSR-safe
  • Full TypeScript types
  • React, Next.js, Vue, Svelte, Angular, and plain HTML support