OpenLayers vs TerriaJS
Head-to-head usage across the sites we track.
Top sites by authority
OpenLayers · TerriaJS · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
8
0
Open Page Rank 8+
117
3
Open Page Rank 7+
294
6
Open Page Rank 6+
468
6
Open Page Rank 5+
660
7
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
OpenLayers · TerriaJS · share of sites in each country using one or the other
Germany
2,210
7
United States
1,165
10
France
1,157
3
Spain
962
3
Brazil
882
2
United Kingdom
819
6
Italy
776
5
Netherlands
735
3
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | OpenLayers | TerriaJS |
|---|---|---|
| LCP | 1.9 s | 2 s |
| INP | 75 ms | 112 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 700 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.