Install Google Analytics code without plugin

I always used a WordPress plugin to add my GA to my WordPress websites. Now I want to add the code without the need of a plugin. I want to add two things to the default code:

– Increase the siteSpeedSampleRate to 50%
– Anonymize IP adresses

So this is the code I have right now, and I like to know if I set this up correctly:

<script async src="https://www.googletagmanager.com/gtag/js?id=UA-XXXXXXXX-X"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

    gtag('config', 'UA-XXXXXXXX-X', {'siteSpeedSampleRate': 50});
    gtag('config', '<GA_MEASUREMENT_ID>', { 'anonymize_ip': true });
 
</script>

I don’t use the tagmanager, so maybe I can delete the line?
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-XXXXXXXX-X"></script>

Thanks for your help ??

Alwin

• This topic was modified 5 years, 1 month ago by Steven Stern (sterndata).
• This topic was modified 5 years, 1 month ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Everything else WordPress topic