Which ad networks pair well with a video partner? What the live sites show

The advice that you should run two ad networks to capture the higher bid is one of the most persistent ideas in publishing, and our data says publishers overwhelmingly do not do it — 95.0% of monetised sites carry exactly one network. We went through why in can you run two ad networks at once.

But the exceptions cluster, and the largest cluster is a specific and sensible one.

The pairs that actually occur

Why this combination works when others do not

A managed display network’s value is that it runs many demand sources against each other for your display slots. Adding a second display network does not enlarge that auction; it creates a second one that cannot see the first, each with less inventory and worse information. That is why stacking display on display so rarely pays.

Video is not the same inventory. An in-content or sticky video player is a unit that most display partners either do not sell or sell less well than a specialist, and it draws from a different pool of advertiser demand at materially higher rates per impression. The two partners are not competing for anything — they are selling different things on the same page.

That also explains why video partners are hard to detect from the public record: a video platform monetising a player frequently leaves no trace in the publisher’s ads.txt at all. We looked at what that does to verification in is Vidazoo’s publisher list real.

What to check before adding one

• Your contract. If you are on a managed display network, exclusivity clauses vary and some cover video explicitly. Several managed networks sell their own video product and will not permit a third party alongside it. This is the first thing to establish, not the last.
• Whether you have video-appropriate content. A player on a page nobody watches earns little and costs page weight. Recipe, tutorial, review and how-to content supports video naturally; reference and short-answer content usually does not.
• The page-performance cost. Video players are among the heaviest things you can add to a page. This is a real trade against your search traffic, and it is the most common reason publishers remove one after trying it.
• Whether your existing partner already offers it. Often the better first move is to enable your current network’s own video product, which avoids the contractual question entirely and is usually better integrated.

Read the table with one caution

Co-occurrence in our index means both networks are detectable on the same site. It does not prove a deliberate, simultaneous arrangement — some pairs are publishers mid-migration, and some are stale records on one side. The general problem is set out in why a network lists a site that is not running its ads.

The video pairs are more likely to be genuine than most, though, for a structural reason: display networks are largely exclusive with each other, so display-on-display pairs are usually migrations by definition, whereas display-plus-video is an arrangement that is actually permitted and actually sold. A pair that can legitimately co-exist probably is co-existing.

The honest summary

Adding a video partner is the one form of running two networks that the data supports, and it is supported for a specific reason — the second partner is selling inventory the first does not. That principle generalises: the question worth asking about any second partner is not “will it bid higher” but “does it sell something my current partner cannot”.

To see what any specific site runs, search it from the home page; every indexed site lists each detected network and the evidence behind it.

Co-occurrence means both networks are detectable on the same site. It is strong evidence of a genuine arrangement for display-plus-video pairs, and weaker for pairs of competing display networks. Every figure on this page is read from our own index when the page is built, and refreshes on a weekly cycle — so the numbers move as the data does. Method and evidence rules: coverage & method.