Regular Expressions 101

1st Alternative(?:\bgoogle\.com$)

Non-Capturing Group(?:\bgoogle\.com$)

\ban ASCII word boundary

googlethe literal text google (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

$end of line

2nd Alternative(?:\bgoogle\.com\.au$)

Non-Capturing Group(?:\bgoogle\.com\.au$)

\ban ASCII word boundary

googlethe literal text google (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

authe literal text au (case sensitive)

$end of line

3rd Alternative(\bgoogle\..*)

Group 1(\bgoogle\..*)

\ban ASCII word boundary

googlethe literal text google (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

.*any character (except for line terminators), repeated any number of times

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?:\bgoogle\.com$)|(?:\bgoogle\.com\.au$)|(\bgoogle\..*)

New

Should not match:
google.com.au
google.com

Should match:
google.net
google.org
google.com.pk