NTLM vs Really Simple SSL & Security
Head-to-head usage across the sites we track.
Top sites by authority
NTLM · Really Simple SSL & Security · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
26
Open Page Rank 8+
0
424
Open Page Rank 7+
0
1,350
Open Page Rank 6+
0
2,786
Open Page Rank 5+
0
5,696
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
NTLM · Really Simple SSL & Security · share of sites in each country using one or the other
United States
0
83,739
Brazil
1
43,852
Spain
0
40,106
Japan
0
36,223
France
0
32,992
Italy
0
30,741
United Kingdom
0
29,953
Germany
0
28,990
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | NTLM | Really Simple SSL & Security |
|---|---|---|
| LCP | 1.5 s | 2.4 s |
| INP | 50 ms | 75 ms |
| CLS | 0.18 | 0 |
| TTFB | 750 ms | 1300 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.