B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
17,000
17,000 -- websites using technology for Immutable.js (2026)
Wappalyzer tracks 17,000 live websites using Immutable.js.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
17,000
Unit
Count
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
wappalyzer.com
Primary
Tier B
https://www.wappalyzer.com/technologies/javascript-libraries/immutable-js/ ↗
Source Article
Websites using Immutable.js
Websites using Immutable.js
Immutable.js is a JavaScript library developed by Facebook that provides immutable data structures for more predictable state management in applications.
Immutable.js is available as open-source software. Learn more at facebook.github.io.
Wappalyzer tracks 17,000 live web…
Original Research
wappalyzer.com
· Original study ↗
Methodology
Wappalyzer technology usage tracking across live websites
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Immutable.js: 17,000 websites using technology. Source: wappalyzer.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/websites-using-immutable-js
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<blockquote cite="https://lighthousedata.io/data/websites-using-immutable-js" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>17,000</strong> -- websites using technology for Immutable.js<br><small>Source: wappalyzer.com (2026) · <a href="https://lighthousedata.io/data/websites-using-immutable-js" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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