regex101: PCRE (Legacy) Match Workspace

(?i)applies the following effective flags to the remainder of the pattern: gui

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:([^\/]+?)\.)?

?repeats the group contents below at most once:

Group 1([^\/]+?)

Negated Character Class[^\/]+?

+?matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 2(([^\/]+)\.([A-Z]{2,}))

Group 3([^\/]+)

Negated Character Class[^\/]+

+matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 4([A-Z]{2,})

Character Class[A-Z]{2,}

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

A-Zone character from A (65₁₀) to Z (90₁₀) (case insensitive)

Global pattern flags

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

u modifier: unicode. Treats the pattern and subject as UTF-16

Search reference

Regular Expression

(?i)\/\/(?:([^\/]+?)\.)?(([^\/]+)\.([A-Z]{2,}))

New

https://forum.keyboardmaestro.com/t/how-can-i-get-only-the-domain-name-from-the-frontend-browser/18727

https://controldesign.com/industrynews/2020/pepperl-fuchs-announces-first-online-summit/

https://controldesign.co.uk/industrynews/2020/pepperl-fuchs-announces-first-online-summit/

https://forum.keyboardmaestro.com.de/t/how-can-i-get-only-the-domain-name-from-the-frontend-browser/18727

https://forum.keyboardmaestro.de/t/how-can-i-get-only-the-domain-name-from-the-frontend-browser/18727

https://someCompany.us

Regular Expressions 101

Regular Expression

Substitution