Regular Expressions 101

^start of line

Negative Lookahead(?!(?:10ofthose\.com|180post\.net)$)

Non-Capturing Group(?:10ofthose\.com|180post\.net)

1st Alternative10ofthose\.com

10ofthosethe literal text 10ofthose (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

2nd Alternative180post\.net

180postthe literal text 180post (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

netthe literal text net (case sensitive)

$end of line

Character Class[0-9]{2}

{2}matches exactly 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Character Class[a-z]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:net|com)

1st Alternativenet

netthe literal text net (case sensitive)

2nd Alternativecom

comthe literal text com (case sensitive)

$end of line

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

^(?!(?:10ofthose\.com|180post\.net)$)[0-9]{2}[a-z]+\.(?:net|com)$

New

99abc.com
78c.net
10ofthose.com
180post.net