HTTP/3 vs ParkingCrew
Head-to-head usage across the sites we track.
Top sites by authority
HTTP/3 · ParkingCrew · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
208
0
Open Page Rank 8+
3,600
0
Open Page Rank 7+
17,128
0
Open Page Rank 6+
37,410
0
Open Page Rank 5+
72,694
0
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 · ParkingCrew · share of sites in each country using one or the other
United States
1,137,483
156
India
533,896
238
Brazil
409,200
79
United Kingdom
387,999
55
Indonesia
291,484
128
Germany
286,932
55
Italy
284,574
45
Canada
281,458
42
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | HTTP/3 | ParkingCrew |
|---|---|---|
| LCP | 1.9 s | 2.5 s |
| INP | 75 ms | 0 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 1100 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
ParkingCrew to HTTP/3
| Domain | When |
|---|---|
| fnetvpn.com | Jul 2026 |
| kingtogel.net | May 2026 |