Hi,
A friend is asking if what could be easy to use SEO on page tools that could be white labeled, and a tools to check mobile responsive of a site.
Thanks!
tools to check mobile responsive of a site
Are you using any CMS? There are nice on-page extensions/plugins for the most popular ones like Joomla or Wordpress. They allow you to control alt descriptions, sef urls, keyword density...
You can also use some online tools that gives you hints like woorank.