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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	[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]
Non-Matches	@abc.com,[email protected],[email protected],[email protected]
Author	Rating: Rafiq
Source	Email
Your Rating	Bad 1 2 3 4 5 Good

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Existing User Comments

Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaa!
Date: 4/8/2025 8:22:46 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!

Title: aaaaaaaaaaaaaaaaaaaaaaaa!
Name: f
Date: 1/14/2025 2:45:45 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaa!

Title: ^(([a-z])+.)+[A-Z]([a-z])+$
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 12/10/2024 1:45:49 PM
Comment:
[email protected]

Title: ^(([a-z])+.)+[A-Z]([a-z])+$
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 12/10/2024 1:45:29 PM
Comment:
[email protected]

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: [email protected]
Date: 7/17/2024 12:40:49 AM
Comment:
[email protected]

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: 7/17/2024 12:38:57 AM
Comment:
aaaaa

Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 6/18/2024 6:17:50 AM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!

Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 5/28/2024 2:40:51 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!

Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 4/15/2024 2:55:15 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaaaaaa!

Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 4/15/2024 2:55:04 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaaaaaa!

Title: aaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Name: aaaaaaaaaaaaaaaaaaaaaaaaaaaa!
Date: 4/15/2024 2:54:46 PM
Comment:
aaaaaaaaaaaaaaaaaaaaaaaaaaaa!

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: 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: 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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