/research/us-store-speed-2026 · Session replay

Does Contentsquare slow down a store?

In 7IT’s test of 367 US online stores, Contentsquare ran on 34 of them (9.3%). On the median store that loads it, it downloaded 173 KB and kept the phone busy for 0.25 s before the page could respond.

9.3%of 367 US stores run it
173 KBmedian download on stores that load it
0.25 smedian time the phone spends running it

Stores with it and without it.

StoresMedian scoreMain contentBlocking timeApps on the page
With Contentsquare342913.2 s2103 ms32
Without3333511.4 s1198 ms19

Stores that run Contentsquare had a median score of 29, against 35 for stores without it. They also run more apps overall (a median of 32 against 19), so that gap is not all Contentsquare’s doing. The size and phone time above are Contentsquare’s own. On this sample there is no score penalty that can be pinned on it.

One in four stores that load it download more than 183 KB of it, and spend more than 0.47 s running it. Median Google phone-lab results, home pages only, September 2026. Method and limits in the study.

If you run Contentsquare.

  • Session replay and heatmaps record every visitor. Sample a share of sessions instead of all of them.
  • Start recording after the page is idle, not during the first paint.
  • Turn it off when the question you installed it for is answered.