I disallow one page of my site through robots.txt Now if there is another url which is redirected to the same url which I already disallow. My question is that should I mention the new url in robots for disallow or old url is ok, not necessary to add both url? e.g. disallow: /abc (previously disallowed page) (old url) another url - /abc/xyz (which is redirected to /abc page) (new url)
First you have change the url of sitemap and then create robots.txt file and upload it your root folder.Because your are redirating your site to same URL and it depends on you is it 301 redirection or 303 redirection.