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Regular Expression Details

Title Test Find RegEx for email validation
Expression
/^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$/
Description
This expresssion will validate all possible formats except if web site URL contains hyphen characters like [email protected]. I will include this feature also in next version.
Matches
Non-Matches
Author Rating: The rating for this expression. Rafiq
Source Email
Your Rating
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Enter New Comment

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Comment
 
Spammers suck - we apologize. Please enter the text shown below to enable your comment (not case sensitive - try as many times as you need to if the first ones are too hard):

Existing User Comments

Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 2/16/2024 8:06:15 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 2/16/2024 8:05:43 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa
Name: aaaaaaaaaaaaaaaaaaaaaaaa
Date: 2/15/2024 11:55:59 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 1/23/2024 10:24:51 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: /^([a-zA-Z0-9_.+-])+@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/
Name: /^([a-zA-Z0-9_.+-])+@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/
Date: 11/21/2023 5:17:12 PM
Comment:
/^([a-zA-Z0-9_.+-])+@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/


Title: /^([a-zA-Z0-9_.+-])+@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/
Name: /^([a-zA-Z0-9_.+-])+@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/
Date: 11/21/2023 5:16:23 PM
Comment:
/^([a-zA-Z0-9_.+-])+@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 11/18/2023 12:54:30 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 11/13/2023 1:39:38 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaa
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaa
Date: 9/26/2023 9:04:11 AM
Comment:
zebra_arbez_02


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaa
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaa
Date: 9/26/2023 9:04:04 AM
Comment:
zebra_arbez_02


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/14/2023 5:41:26 PM
Comment:
zebra_arbez_02


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/14/2023 5:41:16 PM
Comment:
zebra_arbez_02


Title: ^(([a-z])+.)+[A-Z]([a-z])+$
Name: ^(([a-z])+.)+[A-Z]([a-z])+$
Date: 9/14/2023 5:34:40 PM
Comment:
zebra_arbez_01


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/1/2023 7:02:11 AM
Comment:
woooooooooooooooooooooooooooooooot!


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/1/2023 6:16:40 AM
Comment:
woooooooooooooooooooooooooooooooot!


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/1/2023 6:15:54 AM
Comment:
woooooooooooooooooooooooooooooooot!


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/1/2023 6:15:13 AM
Comment:
woooooooooooooooooooooooooooooooot!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 8/23/2023 12:07:08 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 6/24/2023 5:16:38 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 6/24/2023 5:16:29 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 6/1/2023 6:17:49 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!


Title: lol
Name: kek
Date: 6/1/2023 6:17:31 AM
Comment:
RUSSIA


Title: tttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
Name: tttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
Date: 6/1/2023 6:17:16 AM
Comment:
ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt!


Title: tttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
Name: tttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
Date: 6/1/2023 6:17:07 AM
Comment:
ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt!


Title: tttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
Name: tttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
Date: 6/1/2023 6:16:43 AM
Comment:
ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt!


Title: lol
Name: tt
Date: 6/1/2023 6:16:08 AM
Comment:
rr


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 6/1/2023 6:15:48 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!


Title: ^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Name: ^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Date: 6/1/2023 6:12:02 AM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 6/1/2023 6:11:48 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!


Title: lol
Name: kek
Date: 6/1/2023 5:58:06 AM
Comment:
RUSSIA


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 6/1/2023 5:50:33 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!


Title: ^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Name: ^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Date: 6/1/2023 5:41:59 AM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: ^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Name: ^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Date: 6/1/2023 5:41:31 AM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: me
Name: the
Date: 6/1/2023 5:40:10 AM
Comment:
boys


Title: me
Name: the
Date: 6/1/2023 5:35:56 AM
Comment:
boys


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 5/23/2023 11:07:05 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 5/17/2023 9:49:39 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 4/20/2023 8:03:23 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 3/15/2023 11:51:00 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 2/23/2023 4:51:20 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 2/14/2023 12:12:54 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 2/8/2023 12:32:10 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: lol
Name: olo
Date: 12/19/2022 9:07:30 PM
Comment:
lol


Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 11/22/2022 2:35:09 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 10/21/2022 2:05:37 PM
Comment:
test


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 10/7/2022 12:19:29 PM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/29/2022 11:05:07 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/29/2022 11:04:59 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/6/2022 10:04:40 AM
Comment:
/^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/6/2022 10:04:34 AM
Comment:
/^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 9/6/2022 10:01:49 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: Stop spamming comments
Name: Developer
Date: 4/5/2022 10:47:15 AM
Comment:
This regular expression is featured in the "Bad Examples" section of the OWASP guide on "Regular expression Denial of Service - ReDoS". Don't use it, unless you want your server to be taken down by a Denial of Service attack.


Title: /^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Name: aaaaaaaaaaaaaaaaaa!
Date: 3/23/2022 8:44:23 AM
Comment:
/^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: /^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Name: aaaaaaaaaaaaaaaaaa!
Date: 3/23/2022 8:44:14 AM
Comment:
/^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: /^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Name: aaaaaaaaaaaaaaaaaa!
Date: 3/23/2022 8:44:03 AM
Comment:
/^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: /^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Name: aaaaaaaaaaaaaaaaaa!
Date: 3/23/2022 8:43:52 AM
Comment:
/^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: ^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Name: aaaaaaaaaaaaaaaaaa!
Date: 3/19/2022 12:33:56 PM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: ^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Name: aaaaaaaaaaaaaaaaaa!
Date: 3/19/2022 12:33:40 PM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 2/19/2022 5:34:59 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 2/19/2022 5:34:07 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!


Title: test
Name: test
Date: 2/8/2022 11:39:06 AM
Comment:
test


Title: test
Name: test
Date: 2/8/2022 11:08:32 AM
Comment:
test


Title: test
Name: test
Date: 2/8/2022 11:06:22 AM
Comment:
test


Title: test
Name: test
Date: 2/8/2022 11:06:03 AM
Comment:
test


Title: test
Name: test
Date: 2/8/2022 11:05:39 AM
Comment:
test


Title: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Name: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAaaa
Date: 1/24/2022 5:45:31 AM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Name: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAaaa
Date: 1/24/2022 5:44:13 AM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: Demo
Name: Foo
Date: 3/11/2021 11:52:55 PM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: Regex
Name: Demo
Date: 2/19/2021 11:09:13 AM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: Hi how are you
Name: Fine good
Date: 1/20/2021 6:09:53 PM
Comment:
What's going on here


Title: ^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Name: ^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$
Date: 12/30/2020 12:00:34 PM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: test2
Name: vikas
Date: 8/30/2020 2:10:47 PM
Comment:
(([\-.]|[_]+)?([a-zA-Z0-9]+))*


Title: test1
Name: vikas
Date: 8/30/2020 2:09:08 PM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: ^(([a-z])+.)+[A-Z]([a-z])+$
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 1/13/2020 4:10:49 PM
Comment:
asas


Title: dsfs
Name: sdfsfdsf
Date: 11/4/2019 2:11:28 PM
Comment:
sdfsdfsfasdf asdf asdf asdf


Title: hello hi
Name: name here
Date: 9/12/2019 11:38:01 PM
Comment:
^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$


Title: angelo
Name: angelo
Date: 9/3/2019 8:31:28 AM
Comment:
/^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$/


Title: test
Name: rest
Date: 8/29/2019 11:00:34 AM
Comment:
best


Title: /^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$/
Name: /^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$/
Date: 7/10/2019 10:33:14 AM
Comment:
/^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$/


Title: This regex is evil
Name: Concerned citizen
Date: 9/15/2017 8:35:16 AM
Comment:
This regex will add a vulnerability to you program. Please check this page, it explicitly gives this regex as a bad example for a ReDoS: https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS


Title: This regex is evil
Name: Concerned citizen
Date: 9/15/2017 8:35:07 AM
Comment:
This regex will add a vulnerability to you program. Please check this page, it explicitly gives this regex as a bad example for a ReDoS: https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS


Title: /^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$/
Name: 12
Date: 6/15/2017 10:44:27 AM
Comment:
22


Title: Don't use this regular expression
Name: Roland Illig
Date: 9/5/2016 10:31:46 AM
Comment:
This regular expression is featured in the "Bad Examples" section of the OWASP guide on "Regular expression Denial of Service - ReDoS". Don't use it, unless you want your server to be taken down by a Denial of Service attack.


Title: Don't use this regular expression
Name: Roland Illig
Date: 9/5/2016 10:31:28 AM
Comment:
This regular expression is featured in the "Bad Examples" section of the OWASP guide on "Regular expression Denial of Service - ReDoS". Don't use it, unless you want your server to be taken down by a Denial of Service attack.


Title: mds
Name: mldsqdl
Date: 12/28/2015 11:25:07 AM
Comment:
mds


Title: test
Name: fred
Date: 2/24/2013 10:23:12 AM
Comment:
test


Title: aaaaa[...]aaaaaa
Name: aaaaa[...]aaaaaa
Date: 4/20/2011 12:54:23 PM
Comment:
https://secure.wikimedia.org/wikipedia/en/wiki/ReDoS http://www.reddit.com/r/programming/comments/gua22/regex_denial_of_service_redos/


Title: caca
Name: caca
Date: 1/9/2011 7:50:47 PM
Comment:
if my e-mail it's [email protected] ? at least in argentina we have domains.info among others


Title: [email protected]
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Date: 12/11/2010 8:08:06 AM
Comment:
Again, DO NOT WRITE EMAIL VALIDATORS until you know what "RFC822" means. Apparently, you don't. So you're polluting the net with broken regex. PLEASE STOP.


Title: [email protected]
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Date: 12/11/2010 7:44:18 AM
Comment:
Again, DO NOT WRITE EMAIL VALIDATORS until you know what "RFC822" means. Apparently, you don't. So you're polluting the net with broken regex. PLEASE STOP.


Title: WRONG WRONG WRONG
Name: Randal L. Schwartz
Date: 4/27/2007 7:00:25 PM
Comment:
Again, DO NOT WRITE EMAIL VALIDATORS until you know what "RFC822" means. Apparently, you don't. So you're polluting the net with broken regex. PLEASE STOP.


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