Toxic Backlinks from other low quality Websites can hurt your own ranking a lot!
Those are not backlinks you asked for or installed yourself, instead other website owners have linked without your permission to images or texts on your website.
You might not even know that various low quality websites are linking ( or hot-linking ) to your Images.
There are some free websites where you can run a backlinks test.
Removing them can be time consuming.
Contact the website owners and ask them to remove the link to you ( but it is up to them to honour your request ), or use Google’s Disavow Tool.
Contact me if you would like to find out if your website has toxic backlinks and/or if you need help removing them to improve your website ‘s ranking.