Super Page Cache vs Varnish
Head-to-head usage across the sites we track.
Top sites by authority
Super Page Cache · Varnish · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Super Page Cache · Varnish · share of sites in each country using one or the other
United States
3,033
94,977
Germany
977
36,724
France
929
32,486
United Kingdom
1,289
31,590
India
1,520
29,464
Canada
1,047
25,078
Netherlands
642
25,182
Italy
822
22,493
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Super Page Cache | Varnish |
|---|---|---|
| LCP | 2.2 s | 1.7 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 1100 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Varnish to Super Page Cache
| Domain | When |
|---|---|
| agence-kn.fr | May 2026 |
| diukoptyk.pl | Apr 2026 |
| sherwood-observatory.org.uk | Apr 2026 |