I make extra money doing small SEO tasks for local businesses and I constantly need accurate search results from different regions during keyword research. A friend from an SEO community told me to use check anonymity
https://proxystores.com/en/check-your-anonymity/ before collecting any SERP data online. The tool revealed that my setup wasn’t as anonymous as I expected which explained some inconsistent ranking results I kept seeing. After improving my browser configuration, the search results became much more reliable for client projects. That made my reports look cleaner and more professional overall. Since then this check has become one of my regular SEO tools.