Back to GPU Tool

ANGLE_instanced_arrays

WebGL Extension

WebGL1 Fingerprinting Signal
Test Your Browser

What is ANGLE_instanced_arrays?

The ANGLE_instanced_arrays extension is part of the WebGL API and allows to draw the same object or groups of similar objects multiple times, if they share the same vertex data, primitive count and type. Instancing helps with drawing objects like trees, grass, or a large number of objects in a scene. Use drawArraysInstancedANGLE() and drawElementsInstancedANGLE() methods. Available in WebGL1; in WebGL2, this functionality is built-in by default.

Read MDN Documentation

Browser Support

Checking Extension Support
This extension is part of the WebGL1 specification. Browser support varies based on:
  • Graphics card model and capabilities
  • GPU driver version
  • Browser version and vendor
  • Operating system

Usage in Web Scraping & Anti-Bot Bypass

Modern anti-bot systems verify WebGL extensions to detect automated browsers. Mismatches between GPU hardware and available extensions are strong bot signals.

What Anti-Bot Systems Check:
  • Extension availability: Does the reported GPU support these extensions?
  • Extension combinations: Are the extensions typical for this GPU model?
  • Consistency checks: Do reported extensions match other GPU signals?
  • Missing extensions: Are expected extensions for this GPU absent?
Scrapfly's Anti-Scraping Protection (ASP)
Scrapfly automatically manages WebGL fingerprint consistency, ensuring all extensions match the emulated GPU profile. This prevents detection by anti-bot systems that verify WebGL data.
Learn About ASP Bypass

Related WebGL Extensions

EXT_blend_minmax
The EXT_blend_minmax extension is part of the WebGL API and extends blending capabilities by adding ...
EXT_disjoint_timer_query
The EXT_disjoint_timer_query extension is part of the WebGL API and provides a way to measure the du...
EXT_frag_depth
The EXT_frag_depth extension is part of the WebGL API and enables setting a depth value of a fragmen...
EXT_shader_texture_lod
The EXT_shader_texture_lod extension is part of the WebGL API and adds texture functions to GLSL sha...
EXT_sRGB
The EXT_sRGB extension is part of the WebGL API and adds sRGB support to textures and framebuffers. ...

Test Your Complete GPU Fingerprint

Discover all WebGL extensions, WebGPU features, and GPU information exposed by your browser.

Run GPU Fingerprint Test