When it comes to maximizing ad revenue, header bidding ad networks can be a game-changer—even for small publishers. These networks enable multiple demand sources to bid on your inventory simultaneously, leading to higher competition and increased CPMs (Cost Per Mille).

Top Header Bidding Ad Networks Offering High CPM for Small Publishers

7Search PPC: 7Search PPC is a Yahoo-Bing network that offers contextual ads and is known for providing competitive CPMs. It's ideal for small to mid-sized publishers, especially those with content-rich websites.

AdThrive: While AdThrive has traffic requirements (usually 100,000 monthly pageviews), it offers high CPMs through robust header bidding integrations. If your site qualifies, it’s one of the best choices.

Ezoic: Ezoic is beginner-friendly and offers full access to header bidding through its platform. It supports small publishers and uses AI to optimize ad placements for higher CPMs.

Monumetric: Monumetric works with publishers starting at 10,000 pageviews per month. It leverages header bidding technology to increase revenue and provides hands-on support.

Sovrn (formerly VigLink): Sovrn is a flexible platform that offers header bidding solutions and works well with publishers of all sizes. Their Signal product is particularly good for increasing CPM through smarter bidding strategies.

PubGalaxy (now part of Azerion): PubGalaxy specializes in helping small to medium publishers boost CPMs with customized header bidding setups. They focus on transparency and yield optimization.