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+
13
7
Open Page Rank 8+
91
127
Open Page Rank 7+
201
313
Open Page Rank 6+
308
485
Open Page Rank 5+
408
690
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
308
2,633
United States
1,006
1,374
France
350
1,376
Spain
263
1,093
United Kingdom
383
967
Italy
253
910
Brazil
212
947
Netherlands
278
859
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, Jun 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.