Please enable JavaScript to use regex101
/
^
r
e
g
e
x
[
\
-
_
]
?
1
0
1
$
/
i
Reg
ular
Ex
pressions
101
Upgrade to Pro
Enterprise
Community Library
How to contribute
x
VALIDATE DOMAIN:PORT ADDRESS IN PYTHON3
Open Workspace
Python
Match
Created 2021-08-27 13:07
0
Regular Expression
r"
^
(
[
a
-
zA
-
Z0
-
9-_
]
{0,63}
\.
?
[
a
-
zA
-
Z0
-
9-_
]
{1,63}
\.
[
a
-
zA
-
Z0
-
9-_
]
{1,63}
)
:
?
(
\d
{1,5}
)?
$
"
mig
Description
Port is optional
Submitted by
Avaray