Inventory Overview

Manage your ad placements and how they're organized across your site.

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What is inventory?

Your inventory consists of:

• Ad slots — Individual ad placements (where ads appear)
• Layouts — Collections of ad slots (which slots load on which pages)

A typical setup for a single site:

• Homepage — layout Homepage loads header, sidebar, footer
• Articles — layout Article Pages loads header, sidebar, incontent_1, incontent_2
• Category pages — layout Category loads header, sidebar

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Key concepts

Ad slots

An ad slot is a single ad placement — one location where an ad appears.

Property	Description
Name	Your identifier (e.g., article_sidebar_top)
Sizes	Allowed dimensions (e.g., 300x250, 300x600)
Settings	Lazy loading, refresh, floors

Learn more: Ad Slots →

Layouts

A layout is a collection of ad slots that load together on specific pages.

Property	Description
Name	Your identifier (e.g., Article Pages)
Targeting	Which URLs this layout applies to
Slots	Which ad slots are included

Learn more: Layouts →

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How inventory works

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Managing inventory

Task	Where	Link
View all ad slots	Inventory → Ad Slots	View slots →
Create ad slot	Inventory → Ad Slots → Add	Create slot →
View all layouts	Inventory → Layouts	View layouts →
Create layout	Inventory → Layouts → Add	Create layout →

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Best practices

Naming

Use consistent, descriptive names:

Ad slots:  [page]_[position]_[number]
           homepage_header_1
           article_sidebar_top
           category_incontent_1

Layouts:   [page type] or [section]
           Homepage
           Article Pages
           Sports Section

Organization

• Start simple — Begin with core page types and expand
• Group logically — Similar pages share layouts
• Document — Keep notes on your slot purposes

Performance

• Limit slots per page — 4-6 is typical
• Use lazy loading — For below-fold slots
• Reserve space — Prevent layout shift

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Getting started

If you're setting up inventory for the first time:

Create your first ad slot →

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Common questions

How many ad slots should I have?

There's no magic number. Consider:

• User experience — Too many ads annoys users
• Page layout — What fits naturally?
• Revenue goals — More slots = more potential revenue, but diminishing returns

Most sites do well with 4-6 slots per page.

Can one ad slot be in multiple layouts?

Yes. An ad slot can be included in any number of layouts. This is common for slots like headers that appear across page types.

What if no layout matches a page?

No ads will load. Create a catch-all layout with a Regex match: .* page-path rule as a fallback, or ensure your layouts cover all page types.