Impression and click discrepancies in Search Console when filtering by date

[znotes]

I recently filtered query information by week and day. The impression and click totals were different depending on whether I looked at totals by a full weeks or by day.

So for example, the impression and click totals when I choose a date range of  monday-sunday are different when I look at impressions and clicks that same week by day and then add up the click and impression numbers to get a weekly total. At first i was expecting a slight difference since I know the data is heavily sampled but the totals were very different.

Any explanations for this?

Thanks

[StephanSolomonidis]

Hi Zack,

Unfortunately, this is just down to sampling. Results in the interface, in particular, are very heavily sampled. There's a limit of 1000 rows per response when using the interface, but this goes up to 5000 when using the API. So the best you can do, really, is to use the API and pull out as many combinations of filters as you can.

I wrote this script for that purpose, and my colleague Dom also wrote about it in this Moz post.