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+
7
0
Open Page Rank 8+
127
3
Open Page Rank 7+
313
6
Open Page Rank 6+
485
6
Open Page Rank 5+
690
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
2,633
6
United States
1,374
14
France
1,376
4
Spain
1,093
3
United Kingdom
967
6
Brazil
947
3
Italy
910
4
Netherlands
859
3
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | OpenLayers | TerriaJS |
|---|---|---|
| LCP | 1.8 s | 2 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 900 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.