I am trying to create a regex to filter urls but it is not working. I am trying to apply the following regex:
This is to show urls that have 20 alphanumeric characters before the ".", i.e. trying to find long urls in a hope to identify DGA created urls. However it is not working when I put it as a search criteria.
I have run tests with lower numbers to test it but it still returns no results even when it should. Please help to determine why it is not working.