ArcGIS API for JavaScript vs OpenLayers
Head-to-head usage across the sites we track.
Top sites by authority
ArcGIS API for JavaScript · OpenLayers · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
14
7
Open Page Rank 8+
91
112
Open Page Rank 7+
196
287
Open Page Rank 6+
303
458
Open Page Rank 5+
404
645
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
ArcGIS API for JavaScript · OpenLayers · share of sites in each country using one or the other
Germany
275
2,137
United States
932
1,171
France
282
1,136
Spain
241
986
United Kingdom
350
810
Brazil
199
871
India
375
627
Italy
213
761
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | ArcGIS API for JavaScript | OpenLayers |
|---|---|---|
| LCP | 1.8 s | 1.8 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 800 ms |
Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.