Put it in your theme’s footer.php file.
Is there any difference in simply putting the GA.JS tracking code into the footer.php vs using a google analytics wordpress plugin?
The end result should be the same, however using a plugin would mean you don’t have to edit the theme.
I would personally use a plugin instead of editing the theme’s file, especially if the theme you’re using is one that’s written by a third party and may be updated by them in the future.
I added the G. code to the footer.php but when I clicked on “update file” it erased all the code! Help! I was using the default theme, as I’ve just started the blog.
Then just download the original footer.php file to the site again, since it was lost. Then redo the edit.