ExtendThemes Calliope vs GeneratePress
Head-to-head usage across the sites we track.
Top sites by authority
ExtendThemes Calliope · GeneratePress · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
18
Open Page Rank 8+
0
190
Open Page Rank 7+
0
511
Open Page Rank 6+
0
907
Open Page Rank 5+
0
1,664
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
ExtendThemes Calliope · GeneratePress · share of sites in each country using one or the other
United States
6
25,094
India
4
19,394
Spain
1
11,493
Germany
6
9,659
France
2
8,719
United Kingdom
3
8,347
Indonesia
6
7,180
Canada
3
6,687
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | ExtendThemes Calliope | GeneratePress |
|---|---|---|
| LCP | 2 s | 2.1 s |
| INP | 50 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 1100 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.