You work hard to build up backlinks so your website will rank better. There's nothing worse than getting excited when you see new backlinks, only to find out they are from spammy websites. You're probably wondering where the links came from, but even more importantly, you're wondering if they will harm your website.
Should you disavow the bad backlinks? Google created the disavow tool, but they don't encourage its use. Google’s John Mueller once said that the majority of sites don't need to disavow random bad links. He said the only publishers that should use the disavow tool are those who bought backlinks or used an SEO agency that bought backlinks from irrelevant, poor quality websites in bulk.
While Google says you don't have to disavow random spam backlinks, no one really wants to take a chance and see their ranking slip. Falling off page one of the search results page can mean a large drop in revenue. If you were to get a manual penalty, it could take a long time to recover.
SEO experts are divided on when and if to disavow spam backlinks. There are SEO agencies that make a good living disavowing backlinks. They claim it's a tedious, but necessary task. In some cases, it is necessary. If you once bought backlinks on Fivver, you may want to get rid of them ASAP. However, if a few random websites are linking to you for no obvious reason, don't panic. You don't have to hire anyone to get rid of these backlinks for you. Google will just ignore them.
If Google punished every spammy backlink on sites, your competitors would just create a poor quality site and link to you using irrelevant anchor text. It would be too easy. Google can tell the difference since they have linking algorithms to judge backlinks and the sites where they originate. For more information click here https://www.reddit.com/r/SEO/comments/lplqyp/shouldibeworriedaboutthesespam_backlinks/.