Regular Expressions 101

Group 1(http[s]?)

httpthe literal text http (case insensitive)

Character Class[s]?

?matches at most one character from the set below:

sthe literal s (115₁₀ / 163₈ / 73₁₆) (case insensitive)

\:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2([aZ09-_]*?\.)?

?repeats the group contents below at most once:

Character Class[aZ09-_]*?

*?matches any number of characters from the set below:

athe literal a (97₁₀ / 141₈ / 61₁₆) (case insensitive)

Zthe literal Z (90₁₀ / 132₈ / 5A₁₆) (case insensitive)

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

9-_one character from 9 (57₁₀) to _ (95₁₀)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 3([aZ09-_]{2,}\.)

Character Class[aZ09-_]{2,}

{2,}matches at least 2 characters from the set below:

athe literal a (97₁₀ / 141₈ / 61₁₆) (case insensitive)

Zthe literal Z (90₁₀ / 132₈ / 5A₁₆) (case insensitive)

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

9-_one character from 9 (57₁₀) to _ (95₁₀)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 4([\w\.]{2,5})

Character Class[\w\.]{2,5}

{2,5}matches between 2 and 5 characters from the set below:

\wany word character

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(http[s]?)\:\/\/([aZ09-_]*?\.)?([aZ09-_]{2,}\.)([\w\.]{2,5})

New

http://tonton.google.fr
https://www.google.fr
http://www.google.co.uk
https://paulrad.com