For my small online store, I first thought to resort to an agency that can help ads, but after reading the forums a little, I came across a site that is used by just the same SEO specialists for their work, spending literally a few days of free time to figure out I do my own website promotion and in the comparison of how much companies charge for their work, I saved well! I'm currently doing monitor Backlink here https://seranking.com/backlink-checker.html I think this will also give me a good effect in the future!