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+
12
8
Open Page Rank 8+
89
117
Open Page Rank 7+
191
294
Open Page Rank 6+
300
468
Open Page Rank 5+
402
660
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
2,210
United States
919
1,165
France
280
1,157
Spain
237
962
United Kingdom
348
819
Brazil
190
882
India
377
620
Italy
218
776
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 | 1.9 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 800 ms |
Median site's p75 values from the Chrome UX Report, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.