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+
60
3
Open Page Rank 8+
1,091
15
Open Page Rank 7+
4,237
41
Open Page Rank 6+
8,028
71
Open Page Rank 5+
13,913
109
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
108,921
339
Japan
76,103
101
Brazil
48,745
178
United Kingdom
39,088
202
India
38,767
261
France
34,350
158
Italy
33,431
152
Canada
30,180
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, 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.
All Facebook Login sites · All Microsoft Authentication sites