What is the different between simple match, exact match, contain word, and regular expression?
We use URL Targeting to match only specific active pages declared by you.
Use
Simple Match when you want to target only one page.

Use
Exact Match
when you want to target specific page with a fixed query or hash parameters.

Use
Contain Word when you want to match loosely based on a matched word in a URL.

Use
Regular Expression to target complicated URL structures.