Incapsula vs jsDelivr
Head-to-head usage across the sites we track.
Top sites by authority
Incapsula · jsDelivr · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
139
Open Page Rank 8+
0
2,744
Open Page Rank 7+
0
12,072
Open Page Rank 6+
0
24,230
Open Page Rank 5+
0
43,228
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Incapsula · jsDelivr · share of sites in each country using one or the other
United States
1,791
297,049
India
941
167,723
Japan
521
158,519
United Kingdom
948
117,022
Brazil
627
105,974
France
683
92,567
Germany
706
87,206
Canada
928
85,473
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Incapsula | jsDelivr |
|---|---|---|
| LCP | 2 s | 1.9 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 700 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Incapsula to jsDelivr
| Domain | When |
|---|---|
| rewards777.com | Jan 2026 |