Is Whatsmyserp safe?

Whatsmyserp reads your Google search query and related keywords and sends them to its servers to fetch SEO metrics.

On Google search result pages, the extension's content script reads the text you typed into the search box plus the 'people also search for' and related-search keywords on the page. It sends those keywords to ext.whatsmyserp.com to look up search-volume and cost-per-click data, which it then displays alongside Google's results. This keyword lookup is the extension's advertised function and only runs on Google search pages.