apache - Htaccess redirecting not rewriting -

i have 2 domains - example.com , example.co. both domains on same web hosting package , both document roots 'public_html'

i want rewrite string after example.co (e.g. example.co/abc123) https://www.example.com/page.php?url=text-here

here htaccess, seems redirecting instead of rewriting.

rewritecond %{http_host} ^(www\.)?example\.co$ [nc] rewriterule ^(.*)$ https://www.example.com/page.php?code=$1 

from question along comments, seems want redirect request example.co , without www page.php?code=anything after, if right try:

# match example.co , without www rewritecond %{http_host} ^(www\.)?example\.co$ [nc] # make sure don't redirect page.php rewritecond %{request_filename} !page\.php # internally redirect received page.php query string code rewriterule ^(.*)$ /page.php?code=$1 [l] 

this internally redirect user still see domain example.co.

given still want use https, in case not can further use this, instead of above rule:

# if not start www redirect www.domain # make sure domain.co enclosed parenthesis below rewritecond %{http_host} !^www\.(example\.co)$ [nc] # use make sure redirecting right domain # in case of multiple domains rewritecond %{http_host} example\.co$ [nc] rewriterule ^ http://%1%{request_uri} [l,r=301]  # if https not being used force https rewritecond %{https} !=on # because want force domain rewritecond %{http_host} ^example\.co$ [nc] rewriterule ^ https://%{http_host}%{request_uri} [l,r=301]  # , internal redirect # match example.co, don't need match www anymore rewritecond %{http_host} ^example\.co$ [nc] # here check if file on url page.php # don't want redirect or may fall loop rewritecond %{request_filename} !page\.php # internally redirect received page.php query string code rewriterule ^(.*)$ /page.php?code=$1 [l] 

otherwise rule have should work fine:

rewritecond %{http_host} ^(www\.)?example\.co$ [nc] rewriterule ^(.*)$ https://www.example.com/page.php?code=$1 [r=302,l] 

when domain different or protocol different yield redirect or not that's how works.

so if try redirect domain domain b internally not work.

same applies sub domain main domain or other domains or other sub domains.

to put simple can redirect internally from domain in question itself.