Isso vs Vuukle
Head-to-head usage across the sites we track.
Top sites by authority
Isso · Vuukle · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
1
Open Page Rank 8+
1
1
Open Page Rank 7+
1
4
Open Page Rank 6+
1
6
Open Page Rank 5+
2
11
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Isso · Vuukle · share of sites in each country using one or the other
India
3
83
United States
5
61
United Kingdom
5
32
Canada
3
31
Germany
5
27
Australia
2
27
France
5
23
Netherlands
3
23
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Isso | Vuukle |
|---|---|---|
| LCP | 2 s | 2.7 s |
| INP | 112 ms | 125 ms |
| CLS | 0 | 0.05 |
| TTFB | 600 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.