Facebook Login vs Microsoft Authentication
Head-to-head usage across the sites we track.
Top sites by authority
Facebook Login · Microsoft Authentication · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
64
3
Open Page Rank 8+
1,137
17
Open Page Rank 7+
4,414
45
Open Page Rank 6+
8,439
75
Open Page Rank 5+
14,695
115
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 · Microsoft Authentication · share of sites in each country using one or the other
United States
115,038
352
Japan
80,242
95
Brazil
50,577
176
India
40,025
267
United Kingdom
39,812
202
France
35,047
147
Italy
33,452
143
Canada
30,466
183
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Facebook Login | Microsoft Authentication |
|---|---|---|
| LCP | 1.8 s | 2.2 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 700 ms |
Median site's p75 values from the Chrome UX Report, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.
All Facebook Login sites · All Microsoft Authentication sites