Closure Library

Closure Library is a JavaScript library developed by Google for building robust web applications, offering utilities for DOM manipulation, event handling, data structures, and more.

JavaScript Framework221 eligible domainsgithub.com
Database observations
Share of our database0.1%
Avg confidence100%
30-day observation change+211
Search database

What is Closure Library?

Closure Library is a javascript framework technology. Closure Library is a JavaScript library developed by Google for building robust web applications, offering utilities for DOM manipulation, event handling, data structures, and more.. Currently detected on 221 quality-eligible websites in the Glympt index.

Official website: github.com.

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Frequently used with

Google Analytics174Global Site Tag164Funding Choices161Google Font API158Google Analytics 4147Google Tag Manager135Google AdSense129jQuery128Cloudflare104PHP86

Frequently asked questions

How does Glympt detect Closure Library?

By scanning headers, HTML, JS globals, meta tags, and cookies. Detection is automated and non-intrusive.

What does the score measure?

The average detector score for Closure Library is 100/100. It measures matching evidence, not independently verified accuracy.

Can I export?

Yes. Pro and Business plans include CSV export with full filtering.

Refresh rate?

Observation dates are shown on each report. Refresh timing varies with crawler capacity; you can request a fresh scan from the dashboard.

Does this measure Closure Library market growth?

Our database recorded a net change of 211 observations in 30 days. New coverage and rescans affect this number; it is not a measure of market growth or migrations.

What is "confidence"?

A 0–100 detector score based on matching signals. Stronger evidence increases the score, but false positives and missed technologies remain possible.