NTLM vs reCAPTCHA
Head-to-head usage across the sites we track.
Top sites by authority
NTLM · reCAPTCHA · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
158
Open Page Rank 8+
0
2,942
Open Page Rank 7+
0
12,840
Open Page Rank 6+
0
26,339
Open Page Rank 5+
0
47,961
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
NTLM · reCAPTCHA · share of sites in each country using one or the other
United States
0
521,768
India
0
193,784
United Kingdom
0
180,414
Japan
0
171,305
France
0
146,342
Brazil
1
142,702
Spain
0
138,105
Canada
0
138,004
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | NTLM | reCAPTCHA |
|---|---|---|
| LCP | 1.6 s | 2 s |
| INP | 50 ms | 75 ms |
| CLS | 0.2 | 0 |
| TTFB | 200 ms | 900 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.