2. Vibration (navigator.vibrate script) – with the help of this script your phone begins to vibrate infinitely while loading a landing.
What about the solution? I decided to add these two profitable pubs into a whitelist and show ads only on them:
· (exo_white_1) Pub #1 wasn’t giving traffic to me because of vibration on my LP. I replaced vibration with Auto-sound
· (exo_white_2) Pub #2 wasn’t giving traffic because of Alert (Entry javaScript Message). I decided not to replace it with something and just removed the script.

You can see the result (after 24 hrs.) on the screenshot below:

As you can see a simple adjust didn’t work in case with the second pub, but there were fewer traffic as well, so I decided not to bother myself working with this pub further (though I could try).

I optimized my campaign in every 24-48 working hours. During the main campaign I removed pubs using my own rule: pubs with LP Clicks > 900 and 0 leads were blacklisted. This simple rule helped me to keep about 40% ROI.
All the numbers below include click loss (loss of traffic between its source and tracker). The main campaign (exo) had clickloss rate of 9%, exo_white_1 had about 6-7%.

In the end we have the following picture:

*on the previous screenshot, the costs on exo_white_2 campaign are 6,79, but on this screenshot you can see 7$. This happens because some clicks reach a little later, but after all they count even if the campaign is stopped;

The main idea of the article which I would like to state on: focusing on traffic source is useful.

Offtop. While preparing this article I was chatting with ExoClick support and wanted them to give me a list of pubs by blocking labels, but, unfortunately, such list doesn’t exist (