admin-ajax.php Pushing My Speed Test Out

Hello,

I usually use Pingdom's Speed test and I am currently just helping a friend out with his site but it seems when I run a pingdom speed test the file admin-ajax.php appears TWICE and the second time it appears its 0kb which seems to add another second on to the page speed.

Once is the best way to track down these issues?

Also, he is using DIVI Editor and it seems that the fonts for 'gstatic' aren't being loaded over HTTPS and I don't know how to dig in to update it so I don't get those errors in inspect.

Thanks,
Aaron