كيف اقوم بعمل ملف robot.txt وماهي اهميتة للمنتدى

هل هذا الكود تمام لملف robot.txt يعني يصلح احطه بموقع ادوات اصحاب المواقع
User-agent: *
Disallow: /vb/announcement.php
Disallow: /vb/calendar.php
Disallow: /vb/cron.php
Disallow: /vb/editpost.php
Disallow: /vb/faq.php
Disallow: /vb/joinrequests.php
Disallow: /vb/login.php
Disallow: /vb/misc.php
Disallow: /vb/moderator.php
Disallow: /vb/newreply.php
Disallow: /vb/newthread.php
Disallow: /vb/online.php
Disallow: /vb/attachment.php
Disallow: /vb/private.php
Disallow: /vb/profile.php
Disallow: /vb/register.php
Disallow: /vb/search.php
Disallow: /vb/sendmessage.php
Disallow: /vb/showgroups.php
Disallow: /vb/showpost.php
Disallow: /vb/subscription.php
Disallow: /vb/subscriptions.php
Disallow: /vb/threadrate.php
Disallow: /vb/usercp.php
Disallow: /vb/payments.php
Disallow: /vb/memberlist.php
Disallow: /vb/image.php
Disallow: /vb/images/
Disallow: /Special_volumes_Turki_Alodaani/
Disallow: /abuse/