General Invalid Traffic (GIVT) Filtered Rate

PERCENT OF IMPRESSIONS FILTERED FROM GROSS COUNTS

Average GIVT by Reason

The overall rate for General Invalid Traffic in Q4 continued a downward trend versus Q4 of 2017. High Frequency/Outlier Activity remains the leading reason for filtration, while the Invalid Browser rate has declined significantly since spiking in Q2 of 2018. In Q4 of 2018, we saw an uptick in Spider/Bot activity, but it remains very low, at .13%, particularly compared to the 3.35% rate of High Frequency/Outlier seen in the same quarter.

-7.0%

Quarter / Quarter

Q3 2018 / Q4 2018

-40.7%

Year / Year

Q4 2017 / Q4 2018

Premium Media Vendor GIVT

The rate of GIVT on premium publisher sites in Q4 2018 was higher than every other quarter of the year, but still slightly below that of Q4 2017, and a very small percentage of overall impressions.

Media Aggregator GIVT

Among media aggregators, high frequency/outlier activity also leads the reasons for GIVT. Rates fell significantly from 11.02% in Q4 2017 to 5.04% in Q4 2018.