Absolute URLs Toggle
Ignores query parameters, http/s and www, essentially determines whether to treat these two URLs as the same or not:
All Pages (only on Stream notifications)
Use this option to track all form submissions across your website., no matter what is the page URL. This is a great option when you get started with the Stream notification.
Simple
Specify exact pages from where to track events or display notifications, only when the URL of the page (as seen in the browser's top address bar) is the exact match.
Contains
Set an expression instead of exact URLs in both 'Track' and 'Display' steps.
For example:
To show a notification on all of your landing pages in domain 'example.com':
Set the 'display' step URL match type to 'contains'
Set the expression to 'landing' or 'example.com/landing'
Notice: the notification 'count' will be an aggregate of all events matching your 'Track' settings.
Regex
A regular expression (regex for short) is a special text string for describing a search pattern. You can think of regular expressions as text templates on steroids. You are probably familiar with wildcard notations such as *.txt to find all text files in a file manager, the regex equivalent is:
.*\.txt