Fly.io vs WP Engine
Head-to-head usage across the sites we track.
Top sites by authority
Fly.io · WP Engine · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
2
27
Open Page Rank 8+
16
436
Open Page Rank 7+
59
1,930
Open Page Rank 6+
119
4,270
Open Page Rank 5+
186
8,200
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Fly.io · WP Engine · share of sites in each country using one or the other
United States
2,117
144,016
United Kingdom
775
23,176
Canada
691
21,607
India
954
18,952
Australia
717
14,289
France
535
6,650
Mexico
399
6,311
Germany
583
6,082
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Fly.io | WP Engine |
|---|---|---|
| LCP | 2 s | 1.7 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 700 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.