Fly.io vs SiteGround
Head-to-head usage across the sites we track.
Top sites by authority
Fly.io · SiteGround · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
2
7
Open Page Rank 8+
16
85
Open Page Rank 7+
59
284
Open Page Rank 6+
119
703
Open Page Rank 5+
186
1,687
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 · SiteGround · share of sites in each country using one or the other
United States
2,117
80,409
Italy
406
30,110
United Kingdom
775
27,087
Canada
691
15,498
Spain
454
14,972
Australia
717
13,209
India
954
11,812
Mexico
399
8,349
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Fly.io | SiteGround |
|---|---|---|
| LCP | 2 s | 2 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 700 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
SiteGround to Fly.io
| Domain | When |
|---|---|
| k2university.com | May 2026 |
| lx-medical.com | Apr 2026 |