https://www.influencive.com/why-every-site-owner-must-use-a-serp-checker-tool-in-2021/
Billions of websites and blogs are indexed in Google and they are changing in rank positions all the time. This can be done for a number of reasons, but it's usually based on the content amount on a site, and their marketing methods in place. The most common reason for a site making movements in the search results, is because of the latest link placements and social media activity taking place. The best way to monitor and measure all of your SEO rankings and Google movements, is to use a trusted SERP tool.
