Preact

Preact is a JavaScript library that describes itself as a fast 3kB alternative to React with the same ES6 API.

JavaScript Framework9,004 eligible domainspreactjs.com
Broader database observations
Share of tracked domains3.9%
Avg confidence100%
30-day observation change+154

These statistics include detections outside the stricter public preview. Counts can exceed the qualifying domains above; they describe our coverage, not internet-wide market share.

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What is Preact?

Preact is a javascript framework technology. Preact is a JavaScript library that describes itself as a fast 3kB alternative to React with the same ES6 API.. Currently detected on 9,004 quality-eligible websites in the Glympt index.

Official website: preactjs.com.

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Country lead-list previews

Qualifying domains with estimated country confidence of at least 70. Counts here match the linked previews.

Estimated countries across broader detections

Includes observations below the public country preview’s confidence and quality thresholds. These are website geography signals, not verified business locations.

AU · 147BR · 157DE · 667ES · 323FR · 554GB · 707IT · 426NL · 237SE · 378US · 1,097

Related technologies

Co-detected in the broader database

Counts include broader stored detections, without the public preview’s quality filters. Co-detection describes an observation, not a recommendation or integration guarantee.

Frequently asked questions

How does Glympt detect Preact?

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 Preact 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 Preact market growth?

Our database recorded a net change of 154 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.