Unmatching certificate - anyone has info on stg.a.servedbyivo.com/_t.gif ?

Hi,

Bitdefender blocked the following URL: https://stg.a.servedbyivo.com/_t.gif because of 'Unmatching certificate'. This happened while browsing. The suspicious connection was blocked 61 times in under 4 minutes.

There is little info on this website. From what I have found here ( https://domainwat.ch/site/servedbyivo.com#domain_info ) IVO (ivo.io) seems to be an advertising company. Does anyone have information about this domain?