One SEO professional was concerned about Google Search Console and how accurate the metrics are, and whether or not they can trust them. More specifically, the GSC search performance report.
John replied that the data in Google Search Console search performance report is actually based on real search results that were physically shown to actual users.
These numbers are not theoretical.
Google explains more about these metrics in this Google Search Console Help article.
This average position is based on the average top position of your site’s URL. In GSC, if multiple URLs from the site are shown on the SERPs (search engine results page), then GSC will end up using the top most one for that average data.
It’s also important to note that you may not see exactly the same thing that GSC is showing, because of personalization and localization attributes of specific SERPs.
There is also the possibility of short-lived visibility in search.
It’s also possible that your site may be appearing in image search results within the normal organic search results.
So, average position and other metrics in the search performance report within GSC are all based on actual search results, but these types of results can actually be varied.
You can watch the full video here: