Does Bazaarvoice slow down a store?
In 7IT’s test of 367 US online stores, Bazaarvoice ran on 51 of them (13.9%). On the median store that loads it, it downloaded 55 KB and kept the phone busy for 0.08 s before the page could respond.
13.9%of 367 US stores run it
55 KBmedian download on stores that load it
0.08 smedian time the phone spends running it
Stores with it and without it.
| Stores | Median score | Main content | Blocking time | Apps on the page | |
|---|---|---|---|---|---|
| With Bazaarvoice | 51 | 30 | 14.3 s | 1857 ms | 21 |
| Without | 316 | 35 | 11.3 s | 1230 ms | 20 |
Stores that run Bazaarvoice had a median score of 30, against 35 for stores without it. App counts are similar on both sides (21 and 20), so the comparison is fairer than most. On this sample there is no score penalty that can be pinned on it.
One in four stores that load it download more than 68 KB of it, and spend more than 0.15 s running it. Median Google phone-lab results, home pages only, September 2026. Method and limits in the study.
If you run Bazaarvoice.
- Review widgets usually sit below the fold. Load the widget when the reviews section scrolls into view.
- Render the star rating and review count in the page itself (server-side or from the platform), so the stars appear without the widget.