Personal Google analytics per Wordpress (Elementor) page?

Question

Google Analytics

On a Wordpress account, 10 pages (multiple domain) were created using Elementor, all pages (ie sites) have their own domains and do not intersect.
You need the ability to add a different Google Analytics script to each site.
Because The header of the theme is assigned to all pages, and the statistics are seen as general, a separate one is needed.

Answer 1

what is the problem of creating different header for different pages? True, templates for them also need to be made.
Another option is to add scripts to the current header.php using conditional tags.
For example,

<?php if(is_page(ID-1)): ?>
<!-- google analytics 1 -->
<?php else if(is_page(ID-2)): ?>
<!-- google analytics 2 -->
<?php else: ?>
<!-- google analytics 3 -->
<?php endif; ?>