Hi Ryan ,

You can add a meta-tag (google site verification) using DTM by adding the below code  as non-sequential JS for google site verification:

var newMeta=document.createElement('meta'); newMeta.name="google-site-verification"; newMeta.content="yz1KBJ7bYQaEL6CwZvLWKJvOHd8vJdHrCr5e4XXXXXX"; document.getElementsByTagName('head')[0].appendChild(newMeta);

Please do let us know if you have any questions or queries

Thanks & Regards

Parit Mittal