According to me, Google webmaster tools is best used for checking your website health. There are many benefits to registering your website with webmaster tools. Utilizing webmaster tools on your site will ensure that you are running a healthy website with the utmost efficiency.
Basic Benefits:
* Access to search statistics on Google
* Latest data regarding incoming links and internal links
* Sends notification if your site has any crawl errors (misdirecting) and/or malware (spam, viruses, etc)
* Shows your keywords, you are targeting and how effective they are?
* Insights into crawling and indexing activity on the site