The rankings are updated daily at night, so there there may be certain ranking shifts in the meantime.
Rankings within Overall Search Results (& not Specific Categories)
Sellics only tracks the keyword rankings within all categories:
Rankings within certain categories are not tracked:
To make sure you are comparing the same rankings, you can also check the number of search results shown in Sellics as well as on Amazon at the top left.
Rankings within first 10 pages of Standard Search Results (16 Products / Page)
Sellics observes the first 10 pages of Amazon's search results. Please note that the page number displayed for the ranking relates to the standard pages containing 16 products per page.
If a product ranked outside of these 10 pages Sellics will not show any ranking for it.
Algorithm Tests & Personalized Searchresults (Clear Cache)
Finally, keep in mind Amazon is constantly trying to improve the customer experience and thus search algorithm, which may lead to temoporary ranking shifts. Personalized search results are also being worked on, so it may be necessary to clear the browser's cache (hold Ctrl + Shift + R) to see the actual non-personalized search results.