XML sitemap generator plugin simply put the following string in robot.txt file, if we see so many wp blogs they have lots of tags included in it. also my xml file looks like "sitemap.xml.gz" this,
User-agent: *
Disallow: /wp-admin/
Disallow: /wp-includes/
How to edit and put what are the possible parameters we need to put in robot.txt file?. is the xml file "sitemap.xml.gz" name valid, what is the difference between .xml and gz file?