Last updated: August 2026 — originally published in March 2010. Editorial note: This article was first published in 2010, when Google announced DoubleClick for Publishers. Since then, both the platform and Google's advertising [...]

Last updated: August 2026 — originally published in March 2010.

Editorial note: This article was first published in 2010, when Google announced DoubleClick for Publishers. Since then, both the platform and Google’s advertising ecosystem have changed significantly. I have updated this guide to preserve the historical context while explaining what DFP became and how Google Ad Manager works today.

If you have come across the name DoubleClick for Publishers, often shortened to DFP, you may be wondering whether the platform still exists and what its modern equivalent is.

The short answer is simple:

DoubleClick for Publishers no longer exists under that name. In 2018, Google brought DFP and DoubleClick Ad Exchange together under Google Ad Manager.

Google Ad Manager is now the platform publishers can use to organize, deliver and monetize advertising inventory across websites, apps and other digital environments.

The history behind it is worth understanding because it also shows how dramatically online advertising has evolved.

In short

• DoubleClick for Publishers (DFP) was Google’s ad server for publishers.
• In 2010, Google introduced a new generation of DFP and DFP Small Business.
• DFP allowed publishers to manage advertising inventory, direct campaigns and demand from advertising networks.
• In 2018, Google unified DoubleClick for Publishers and DoubleClick Ad Exchange.
• The resulting platform became Google Ad Manager.
• Google Ad Manager is not the same as Google Ads.
• It is also not simply an advanced version of Google AdSense: the products serve different needs.

What Was DoubleClick for Publishers?

DoubleClick for Publishers was an ad-serving platform used by publishers to manage the advertising space available across their websites and deliver ads according to defined rules.

To understand the concept, it helps to start with advertising inventory.

A publishing website might have, for example:

• a banner at the top of a page;
• an advertising slot within an article;
• sidebar advertising;
• video advertising placements;
• spaces reserved for specific advertisers.

Together, these spaces make up part of the publisher’s available advertising inventory.

An ad server helps determine which campaign should appear, in which placement, under which conditions and with what priority.

DFP therefore addressed a very practical problem: managing advertising sales and delivery from one centralized platform.

Why DFP Mattered to Publishers

Imagine a website that monetizes its audience in several different ways.

Some advertising space may be sold directly to a company through a commercial agreement. Other inventory may be monetized through advertising networks. Some placements may only be available during specific periods or within certain sections of the site.

Without a central platform, managing all of this quickly becomes complicated.

DFP allowed publishers to organize:

• advertising placements;
• advertiser campaigns;
• delivery priorities;
• inventory availability;
• targeting and delivery rules;
• impressions and performance;
• different sources of advertising demand.

The true value of an ad server was therefore not simply the ability to “show banners.”

It was the ability to decide how available advertising inventory should be used and monetized.

That principle remains central to Google Ad Manager today.

From the Original Google Ad Manager to DFP: A Curious History

The history of the product names can be confusing.

When I originally published this article in March 2010, a product called Google Ad Manager already existed and was aimed at publishers.

Around that time, Google introduced a new generation of its publisher technology and began moving users toward:

DFP Small Business

for publishers with less complex requirements, and toward DoubleClick for Publishers for larger and more sophisticated publishing businesses.

For several years, therefore, the Google Ad Manager name disappeared in favor of the DoubleClick brand.

Then, years later, almost the opposite happened.

In 2018, DFP Became Google Ad Manager

In June 2018, Google announced a major simplification of its advertising brands.

After years of increasing integration between:

DoubleClick for Publishers (DFP)

and

DoubleClick Ad Exchange (AdX)

Google decided to bring the technologies together under a single platform:

Google Ad Manager.

The naming history can therefore be simplified as:

Google Ad Manager → DFP / DFP Small Business → Google Ad Manager

That does not mean the 2026 product is simply the same software from 2010 with a different logo.

Over more than fifteen years, technologies, advertising buying models, formats, devices, targeting systems, privacy regulation and programmatic advertising have all changed considerably.

The central principle, however, remains the same: giving publishers a system for managing and monetizing advertising inventory.

What Is Google Ad Manager Today?

Google Ad Manager is an advertising inventory management and monetization platform primarily designed for publishers with more complex needs than simply displaying automated ads.

It is especially relevant for publishers with significant direct advertising sales or those that need greater control over their inventory.

The platform can help centralize inventory across environments such as:

• websites;
• mobile apps;
• video;
• other supported digital properties and formats.

It can also help publishers work with multiple sources of advertising demand while maintaining more granular control over how ads are delivered.

A practical example

Imagine an online magazine with an advertising placement at the top of its articles.

The publisher may have sold a campaign directly to a company for a defined number of impressions.

When that direct campaign does not need to be displayed, the same space could potentially be made available to other sources of advertising demand.

Google Ad Manager helps orchestrate this process.

In simple terms, it helps a publisher decide:

which ad should be shown, where it should appear, when it should be displayed and which source should monetize that space.

How Inventory Works in Google Ad Manager

One of the fundamental concepts in Ad Manager remains inventory.

In simple terms:

Advertising inventory is the collection of spaces a publisher can make available for ads across a website, app or other digital property.

Within Google Ad Manager, these spaces can be represented using ad units.

Ad units can be organized to reflect the actual structure of the publishing property.

For example:

Website
→ Homepage
→ Business section
→ Technology section
→ Articles

or:

Inventory
→ Header
→ Content
→ Sidebar
→ Video

The correct structure depends on the publisher’s editorial and commercial model.

On the web, Google Publisher Tag can then connect page placements with the units configured inside the platform and make advertising requests.

Google Ad Manager and Direct Advertising Sales

One major difference compared with fully automated monetization solutions is the ability to manage advertising sold directly to clients.

Imagine, for example, that an online publication sells a company:

1 million impressions during September

across specific sections of the site.

The publisher needs to be able to define:

• the campaign;
• creative assets;
• campaign dates;
• number of impressions;
• sections involved;
• priority;
• targeting criteria where appropriate;
• delivery performance.

This type of scenario is exactly where an ad server becomes useful.

As the number of campaigns, advertisers, formats and demand sources increases, manual management quickly becomes impractical.

Google Ad Manager vs Google AdSense vs Google Ads

This is probably the most common source of confusion.

All three products belong to Google’s advertising ecosystem, but they do not perform the same role.

Google Ads

Google Ads is primarily designed for advertisers.

If a company wants to buy advertising to promote its products or services, it can use Google Ads.

The company therefore buys advertising.

Google AdSense

Google AdSense is aimed at publishers that want a relatively simple way to monetize their websites using Google’s advertising demand.

It is highly automated and generally requires less operational management than Ad Manager.

The publisher therefore makes advertising space available and monetizes it.

Google Ad Manager

Google Ad Manager is designed for publishers that need greater control over inventory management and multiple sources of advertising demand.

It can be particularly useful when a publisher has:

• direct advertising sales;
• multiple networks or demand sources;
• complex inventory structures;
• more advanced reporting requirements;
• different types of digital properties.

A simplified comparison looks like this:

This distinction is important.

Google Ad Manager is not a tool for creating the standard Google Ads campaigns used by most businesses.

If your goal is to promote products or services through Google advertising, you can also read my guide to Google Ads campaigns.

Does Google Ad Manager Replace AdSense?

No.

Google Ad Manager and Google AdSense are part of the same broader ecosystem, but they are designed for different requirements.

AdSense is generally better suited to publishers that want more automation and have relatively limited ad-management needs.

Ad Manager becomes more relevant when greater control and more sophisticated inventory management are required.

It is therefore misleading to think in terms of:

AdSense = basic → Ad Manager = mandatory upgrade

A better question is:

“How complex is my advertising sales and monetization model?”

A website relying primarily on automated advertising may have no reason to introduce the additional operational complexity of Ad Manager.

When Does Google Ad Manager Make Sense?

Google Ad Manager becomes particularly useful when a publisher needs to coordinate multiple elements.

For example, when the publisher:

• sells advertising campaigns directly to advertisers;
• needs precise control over inventory;
• works with multiple sources of demand;
• manages websites, apps or different advertising formats;
• requires more advanced reporting or configuration;
• needs to coordinate different sales channels;
• has a sufficiently structured advertising operation.

The greater the technical and commercial complexity, the more valuable a centralized management platform can become.

When Can AdSense Be Enough?

For many websites, particularly those without a dedicated advertising sales operation, AdSense may be a much simpler solution.

It may make sense when the publisher mainly wants to:

• monetize website traffic;
• automate much of the advertising management;
• avoid maintaining a complex inventory structure;
• avoid managing numerous advertisers directly;
• reduce operational work related to ad serving.

Using the more complex platform does not automatically produce better results.

Technology should match the business model.

Ad Serving, Programmatic Advertising and Monetization Are Not the Same Thing

Another useful distinction concerns terminology.

Ad serving essentially refers to managing the delivery of advertisements.

Programmatic advertising refers to the automation of many advertising buying and selling processes through platforms, auctions and technology.

Monetization is broader: it refers to the ways a publisher turns its audience and advertising inventory into revenue.

Google Ad Manager sits at the intersection of several of these processes, but the terms are not interchangeable.

Understanding the distinction also helps explain why today’s platform is very different from what DFP represented in the advertising landscape of 2010.

What Does the Evolution from DFP to Google Ad Manager Teach Us?

When I first published this article, smartphones, online video and programmatic advertising were in a very different stage of development.

The underlying business problem, however, was already clear.

A publisher does not simply own “banner spaces.”

A publisher owns or manages:

• an audience;
• content;
• data;
• attention;
• advertising inventory;
• commercial relationships;
• monetization opportunities.

An ad server provides infrastructure for coordinating part of this ecosystem.

As digital advertising evolved, Google progressively unified technologies that had previously operated separately.

The transition from DoubleClick for Publishers to Google Ad Manager therefore tells a broader story: the evolution of online advertising from relatively straightforward placement management toward a more integrated, automated and multi-channel ecosystem.

Frequently Asked Questions About DFP and Google Ad Manager

Does DoubleClick for Publishers still exist?

No. DoubleClick for Publishers, or DFP, no longer exists as a product under that name. In 2018, Google brought DFP and DoubleClick Ad Exchange together under the Google Ad Manager brand.

Are DFP and Google Ad Manager the same thing?

Google Ad Manager is the evolution of the ecosystem in which DFP operated, but it should not simply be thought of as DFP with a new logo. The platform, its capabilities and the advertising market itself have changed substantially over time.

Is Google Ad Manager free?

Google provides different Ad Manager offerings, including Google Ad Manager 360 for more advanced requirements. Conditions, limits and eligibility can change over time, so current official documentation should always be checked before choosing a solution.

What is the difference between Google Ad Manager and Google Ads?

Google Ads is primarily a platform through which advertisers buy advertising. Google Ad Manager is primarily used by publishers to manage and monetize advertising inventory.

What is the difference between Google Ad Manager and AdSense?

AdSense focuses more heavily on ease of use and automated monetization. Ad Manager provides more granular control and is particularly relevant for publishers with direct sales or more complex inventory-management requirements.

Do I need Google Ad Manager to monetize a website?

Not necessarily. For publishers with straightforward requirements, AdSense may be sufficient. Ad Manager becomes more valuable as direct sales, demand sources and inventory complexity increase.

Conclusion

DoubleClick for Publishers is a name from the history of digital advertising, but the problem it was designed to solve remains highly relevant.

Publishers still need to decide how their advertising inventory should be used, delivered and monetized.

In 2010, Google was moving users from the original Google Ad Manager toward DFP Small Business.

In 2018, at least from a branding perspective, the journey went in the opposite direction: DFP and DoubleClick Ad Exchange were brought together under the new Google Ad Manager.

Today, Ad Manager is a much broader platform designed for an ecosystem where direct advertising, programmatic advertising, websites, apps, video and multiple sources of demand may all need to coexist.

For this reason, the most useful question is not simply:

“Is Google Ad Manager better than AdSense?”

but:

“How much control over advertising monetization does my business model actually require?”

The answer to that question — more than the name of the platform — determines which solution makes the most sense.