Facebook Login vs uLogin
Head-to-head usage across the sites we track.
Top sites by authority
Facebook Login · uLogin · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
65
0
Open Page Rank 8+
1,175
3
Open Page Rank 7+
4,610
5
Open Page Rank 6+
8,806
9
Open Page Rank 5+
15,365
16
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Facebook Login · uLogin · share of sites in each country using one or the other
United States
130,630
64
Japan
92,821
12
Brazil
56,858
14
India
46,313
22
United Kingdom
46,044
33
France
42,093
35
Italy
38,753
24
Canada
35,702
18
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Facebook Login | uLogin |
|---|---|---|
| LCP | 1.8 s | 1.9 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 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.