[MattHogan]

can anyone explain me what is Disavow tool.

[SEO]

Sure. Well, for example Google's link disavowal tool allows publishers to tell Google that they don’t want certain link/-s from external site/-s to be considered. For example sites A, B, C and P link to your site and you dislike the link/-s from the P site, then you're able to use the disavow tool in order to tell the SE (search engine) that ("Forget about the P site links, please!" ).

Some SEOers and/or webmasters think there is only Google disavow tool, but it's not the one and only. For example -- the Bing's one: https://www.bing.com/webmaster/help/how-to-disavow-links-0c56a26f

Got it?

[fayeseom]

The Disavow tool is part of Google Search Console (formerly Webmaster Tools) that allows websites to discount the value of an inbound link, helping to prevent against link-based penalties. Google's war on link spam puts some online businesses at risk of organic search penalty, making the disavow tool an important asset for websites at risk of being penalized.

[rachana]

The Disavow Tool allows you to ask Google to remove certain URLs or domains as a ranking factor in the indexing of your site. The main reason to disavow links is to protect the site from "bad" links that are harming its reputation.

[durga]

Disavow Too is an free tool provided to remove Spam Backlinks

[MSL]

 It's "tool". 

[rahul11]

Google's link disavowal tool allows publishers to tell Google that they don't want certain links from external sites to be considered as part of Google's system of counting links to rank web sites.

[gowri789]

Sure. Well, for example Google's link disavowal tool allows publishers to tell Google that they don’t want certain link/-s from external site/-s to be considered. For example sites A, B, C and P link to your site and you dislike the link/-s from the P site, then you're able to use the disavow tool in order to tell the SE (search engine) that ("Forget about the P site links, please!" ).

Some SEOers and/or webmasters think there is only Google disavow tool, but it's not the one and only. For example -- the Bing's one: https://www.bing.com/webmaster/help/how-to-disavow-links-0c56a26f

Got it?

nice explanation thank you

[SEO]

You're welcome!

[Kerry Watson]

Backlinks to your website might be devalued using Google's Disavow Tool. If their algorithm flags your site for a link penalty, you risk losing visitors. The Disavow Tool, developed by Google, is a manual option for mitigating the impact of link penalties.