Our team has identified a contributing factor behind the SERP fluctuations shown on November 14th, for a limited number of keywords.

As every SERP is localized to some extent by Google, market-level only requests may lead to fluctuations in rank or SERP content, depending on how Google interprets this request.

While we strive to minimize extreme fluctuations in our collection process, we recommend tracking localized queries to ensure consistency in the collected data. For more information on tracking localized keywords and how to see a true national average, we’ve put together an informative blog post here.

Please feel free to reach out to our team at support@getstat.com if you have any questions about this at all!

Cheers,
Your Moz Team