Segment vs Simon
Head-to-head usage across the sites we track.
Top sites by authority
Segment · Simon · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
41
1
Open Page Rank 8+
440
3
Open Page Rank 7+
1,430
10
Open Page Rank 6+
2,518
17
Open Page Rank 5+
3,863
30
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Segment · Simon · share of sites in each country using one or the other
United States
25,592
148
India
9,681
68
United Kingdom
8,956
63
Canada
8,342
88
Germany
7,033
46
Australia
5,739
55
Brazil
5,471
48
France
5,297
49
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Segment | Simon |
|---|---|---|
| LCP | 1.9 s | 2.2 s |
| INP | 100 ms | 150 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 900 ms |
Median site's p75 values from the Chrome UX Report, Sep 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.
Simon to Segment
| Domain | When |
|---|---|
| allegiantair.com | Aug 2026 |