<iframethe literal text <iframe (case insensitive) .*?any character (except for line terminators), repeated any number of times
?repeats the group contents below at most once:
width="the literal text width=" (case insensitive) *matches any number of characters from the set below:
0-9one character from 0 (4810) to 9 (5710)
"the literal " (3410 / 428 / 2216)
\.?optionally matches the literal . (4610 / 568 / 2E16)
Group 2(height="[0-9]*")? ?repeats the group contents below at most once:
height="the literal text height=" (case insensitive) *matches any number of characters from the set below:
0-9one character from 0 (4810) to 9 (5710)
"the literal " (3410 / 428 / 2216)
\.*?the literal . (4610 / 568 / 2E16) , repeated any number of times
src="the literal text src=" (case insensitive) .*?any character (except for line terminators), repeated any number of times
youtubethe literal text youtube (case insensitive) \.the literal . (4610 / 568 / 2E16)
comthe literal text com (case insensitive) \/the literal / (4710 / 578 / 2F16)
embedthe literal text embed (case insensitive) \/the literal / (4710 / 578 / 2F16)
\w*any word character, repeated any number of times
\-?optionally matches the literal - (4510 / 558 / 2D16)
\w*any word character, repeated any number of times
.*?any character (except for line terminators), repeated any number of times
?repeats the group contents below at most once:
width="the literal text width=" (case insensitive) *matches any number of characters from the set below:
0-9one character from 0 (4810) to 9 (5710)
"the literal " (3410 / 428 / 2216)
\.?optionally matches the literal . (4610 / 568 / 2E16)
Group 5(height="[0-9]*")? ?repeats the group contents below at most once:
height="the literal text height=" (case insensitive) *matches any number of characters from the set below:
0-9one character from 0 (4810) to 9 (5710)
"the literal " (3410 / 428 / 2216)
\.*?the literal . (4610 / 568 / 2E16) , repeated any number of times
\/the literal / (4710 / 578 / 2F16)
iframe>the literal text iframe> (case insensitive) g modifier: global. Finds all matches instead of stopping after the first
i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string