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+
65
3
Open Page Rank 8+
1,175
20
Open Page Rank 7+
4,610
50
Open Page Rank 6+
8,806
80
Open Page Rank 5+
15,365
120
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
130,630
395
Japan
92,821
114
Brazil
56,858
194
India
46,313
304
United Kingdom
46,044
228
France
42,093
186
Italy
38,753
164
Canada
35,702
211
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Facebook Login | Microsoft Authentication |
|---|---|---|
| LCP | 1.8 s | 2.3 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 700 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.
All Facebook Login sites · All Microsoft Authentication sites