Considering that as of Mar 12, this search engine only has 1001 sites indexed, I am not sure how useful this site is for getting SEO backlinks. Speaking of which, are backlinks still a thing these days?
They are, but the useful ones are those coming from sites with higher domain authority rankings.
That’s why you'll see fluff pieces (aka, paid content) from online publications like Forbes for the better funded entities.
Another approach is the reach out to site operators with offers of writing content or asking them to link to your site’s content in their existing content.
It’s expensive and/or incredibly time consuming to get back links that matter.
