Revealed - How to Identify Popads Site IDs (4)
I stumbled across this recently:
trendspro.builtwith.com
As a subscriber you can download sites utilising various technologies and platforms - it includes Popad publishers (along with a number of other pop networks).
Out of curiosity I subscribed and exported a list of circa ~20k popads publishers, clearly that's not their entire publisher base but its a decent sample.
Popad siteids are publicly available in each sites source in an unencrypted manner, so we have run a little script to scrape the ID's and match to the domain.
In terms of how I apply this data to a competitive advantage, beyond simple curiosity, is yet to be proven.
I can see how to easily extend this across all networks and include other data sources to make this more comprehensive.
I'm toying with putting it up somewhere so people can query or download it, but I just need to double check on the legals.
Hope that's helpful, if you want a quick reveal on any siteids or want a copy of the CSV hit me with a PM.
Nice man! Looks like their cheapest subscription is $295 a month if anybody can't budget for that there's a way to find Popads ID's with scrapebox ($97), Brent Dunn wrote a blog article and posted a video tutorial on his blog https://ppcmode.com/scrape-websites/ but this would take more time than what clickwork7 posted above.
I've posted the file at http://www.clickwork7offers.co.uk/popads_ids
Hope you find it helpful 
I think simon89 posted a method somewhere where you can find the site if you have the siteID. Basically in the popads script lies the siteid.
On AdsXPosed you see the placements. If you open the placement in chrome using view-source:
CTRL+f search for "popads" , you will find something like this:
<!-- PopAds.net Popunder Code for xvdo.mobi -->
<script type="text/javascript">
....
_pop.push(['siteId', 616543]);
....
</script>
<!-- PopAds.net Popunder Code End --> </head>
The line:
_pop.push(['siteId', 616543]);
has the siteid!
If you for example google:
_pop.push(['siteId', 616543]);
You find the placement 
_pop.push(['siteId', X]);
where X is the siteid.
There was some place you could search... Not this one but this can find a few:
http://stackoverflow.com/questions/4...ce-with-google
There is a list of engines searching the source code. Any site containing the string:
_pop.push(['siteId',
will be a popads site
Now I remember: publicwww was the one Simon89 referred to...
Can probably do this for all traffic sources, just find their ad-serving script, find the format of it and paste a piece of it into publicwww or something better (if that exists).
Home > Paid Traffic Sources > POP / PPV / Redirect