Google Webmaster Tools is an extremely useful SEO tool.
It provides data on all important SEO aspects of a site, such as keywords, links, crawl errors, and so on, in a single glance.
Yes, you can use webmaster tools daily.
A webmaster makes sure that your website is appealing enough for potential customers to purchase your goods and services.
Spamlink (an SEO anchor spamlink) removed.
Edit: Admin.