HTTP/3 vs Lengow
Head-to-head usage across the sites we track.
Top sites by authority
HTTP/3 · Lengow · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
217
0
Open Page Rank 8+
3,633
0
Open Page Rank 7+
17,286
1
Open Page Rank 6+
37,596
1
Open Page Rank 5+
73,412
1
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
HTTP/3 · Lengow · share of sites in each country using one or the other
United States
1,284,004
2
India
592,975
2
United Kingdom
436,501
2
Brazil
418,679
0
Indonesia
328,375
0
Canada
321,328
0
Germany
316,957
2
Italy
305,727
2
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | HTTP/3 | Lengow |
|---|---|---|
| LCP | 1.9 s | 1.8 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0.1 |
| TTFB | 800 ms | 900 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.