Remove Low-Quality Links. You don’t want those fiverr $1 links on your site. So get them off. Fight Negative SEO. Your competitors may try to slap your site with thousands of low-quality links. It’s a dirty way of competing in business but get these links off. This will be a big problem with the SEO of your website. You need to fix this.
These are big parts on maintaining a good SEO score. You will need a good backlinks. You will need to clean up the bad links too.