Big gap between Matomo visits number and Google Analytics sessions number

@MG44 wrote:

Hello,

When measuring the number of visits for a website, we experienced a big gap between Matomo and Google Analytics results (16 000 vs 30 000 monthly).

I have not found the explanation in Piwik tracks far fewer visits than other web analytics tools, but tracks the same number of pageviews. FAQ - Analytics Platform - Matomo ( Matomo tracks far fewer visits than other web analytics tools, but tracks the same number of pageviews). So I decided to ask the forum’s members.

1. We have choosed 2 bytes anonymization, e.g. 192.168.xxx.xxx. Is it possible that the huge difference is due to the anonymization of the IP addresses?

2. We have added to the Matomo’s script code lines linked with the cookies duration. Our script is as follows:

script.JPG1821×1084 189 KB

Note: I’ve anonymized the “var u” (cf. var u=“https://***.***.com/”) just before to publish the script in this forum)

Is our script correct?

Thank you very much for your help.

Mat

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