How to use Google Disavow Tool. Can this tool for analyzing bad or unnatural links or removing unnatural links
Google disavow tool are use for only remove the bad backlinks but you sure which backlinks are bad backlinks before removing. you read the instruction in GWT and follow this.
I have not used it. Once your site is submitted it to Disavow tool it will remove all your unnatural links/spammy links.
For removing low quality link and spammy link we can use Disavow tool but i am not sure how much time they take to remove these links.
Google will ignore spammy links but not remove the links. But you have to tell Google which links you wish to remove. You can upload a list of the links you want Google to ignore.
That's a pretty vague question. I've used it for clients who previously had trouble getting rid of a manual unnatural links warning. It has worked to get rid of the warning (manual spam action revoked) in most cases. For some sites there hasn't been a dramatic ranking increase. There are two possible reasons for this: 1. The linking practices that caused the manual warning to be applied also caused the site to be affected by Penguin. If this is the case then we should see some improvement once Penguin refreshes. 2. The site may have only been ranking on the benefit of spammy links and now that they're disavowed may not rank again.
You can read all about the Google Disavow Tool at the Google Webmaster Blog: http://googlewebmastercentral.blogspot.com/2012/10/a-new-tool-to-disavow-links.html I suggest you be very cautious in using this tool. You don't want to disavow links that are actually beneficial to your site. Hope that helps. Have a good day!