Dejan Batanjac

It is worth to mention that WordPress doesn’t have Google Analytics support out-of-the-box. 
To add the Google Analytics code for your WordPress website you need to relay either on the WordPress theme or plugin.
Once you installed the plugin, please navigate to the Settings section in the WordPress dashboard.
From the Settings section select Google Analytics Setup and add your tracking 
code. From now on, on all your website pages you will have the tracking code 
enabled.
Also check <a href="https://github.com/dejanbatanjac/ga-analytics" rel="nofollow ugc">GA Analytics on Github</a>. 
NOTE: It requires at least WordPress 4.5.
Here is the <a href="https://www.google.com/analytics" rel="nofollow ugc">link to Google Analytics</a>.

GA Analytics

A handy way to insert full Google Analytics tracking code on all pages.

Noor Alam

<a href="https://noorsplugin.com/global-site-tag-tracking-plugin-for-wordpress/" rel="nofollow ugc">Global Site Tag Tracking</a> plugin makes Google Analytics tracking simpler and easier for WordPress. If you just want to activate Google Analytics 4.0 on your website with minimal load on the server, all you need to do is enter your Measurement ID/tracking ID in the plugin settings.
<h4>What is Global Site Tag?</h4>
Global Site Tag is the new and upgraded tracking method for Google Analytics. It provides streamlined tagging across Google’s site measurement, conversion tracking and remarketing products giving you better control while making implementation easier. By using Global Site Tag Tracking, you will be able to benefit from the latest dynamic features and integrations as they become available.
<h4>Benefits of Global Site Tag</h4>
<ul>
<li>Access to Google Analytics 4.0</li>
<li>Better data collection and organization system</li>
<li>Simple, reliable, and integrates easily with existing Google products</li>
<li>Connect multiple devices and sessions to the same user</li>
<li>More accurate user count</li>
<li>Analyse the signed-in experience of a user</li>
<li>Access to cross device reports</li>
<li>Custom dimensions and metrics to collect data specific to your business</li>
<li>Automatically detect the most popular search engines and attributes organic search traffic to these sources</li>
<li>Control how long sessions and campaigns last by setting a timeout for it</li>
<li>Choose which domains will be left out from your referral traffic sources</li>
<li>Exclude certain search terms from being identified in your account when a user find your website using it</li>
</ul>
For documentation please visit the <a href="https://noorsplugin.com/global-site-tag-tracking-plugin-for-wordpress/" rel="nofollow ugc">Google Analytics Tracking</a> plugin page.

Global Site Tag Tracking

Enable Google Analytics 4.0 tracking by adding Global Site Tag Tracking code to your WordPress site.

GA Analytics vs Global Site Tag Tracking