About Xandr
Xandr is Microsoft’s programmatic advertising platform, built to handle both demand and supply across digital media. It combines a powerful SSP with DSP capabilities, giving advertisers and publishers access to large-scale inventory, advanced targeting, and data-driven optimization. Since its integration into Microsoft Advertising, Xandr has focused on premium inventory, CTV growth, and privacy-safe targeting solutions.
- Microsoft-owned platform
- Strong CTV inventory
- Premium publisher access
- Advanced data targeting
Editorial Review by TopAdNetworks
Xandr has gone through a serious evolution over the past few years. Originally launched under AT&T, it is now fully integrated into Microsoft’s advertising ecosystem, and that shift shows. The platform feels more aligned with enterprise-grade programmatic tools rather than a traditional ad network.
Scale is one of its strongest assets. Through Microsoft’s demand and partnerships, Xandr connects advertisers to premium publishers, including major news, entertainment, and streaming platforms. That alone puts it in a different category compared to performance-heavy networks.
At the same time, the platform is not built for beginners. The interface, data layers, and optimization tools require experience. However, for teams that know what they’re doing, the level of control is impressive, especially when managing large budgets or multi-channel campaigns.
Another noticeable shift is toward CTV and privacy-first advertising. With third-party cookies fading, Xandr’s investment in identity solutions and contextual targeting gives it a stronger long-term position than many older display networks.
Company Overview
Xandr operates as a full programmatic ecosystem, combining SSP, DSP, and data capabilities into a single platform. After Microsoft acquired it, the focus shifted toward integrating with Microsoft Advertising, LinkedIn data signals, and broader enterprise tools.
On the supply side, publishers connect inventory through Xandr’s SSP, where they can control pricing, demand access, and deal structures. Many publishers use private marketplace deals instead of relying solely on open auctions, which typically results in higher CPM stability and better advertiser quality.
On the demand side, advertisers access inventory through Xandr Invest, the DSP component. Campaigns can run across display, video, and CTV environments, with detailed targeting and optimization controls.
The platform processes billions of daily bid requests globally, making it one of the larger independent programmatic infrastructures outside of Google. That scale allows campaigns to expand across regions without quickly hitting inventory limits.
How The Platform Works
Xandr connects advertisers and publishers through a real-time bidding ecosystem. Publishers integrate inventory, define pricing rules, and choose which demand partners can access their placements. Advertisers then bid on that inventory through the DSP.
Campaign execution revolves around continuous optimization. Performance data updates in near real time, allowing adjustments to bids, targeting, and creatives as campaigns run.
For publishers, monetization focuses on yield optimization. For advertisers, the focus is on audience precision and performance tracking across multiple channels, including web, mobile, and CTV.
Advertiser Onboarding
Getting started requires account approval and setup within Microsoft’s ecosystem. Campaign creation is structured but flexible.
- Account setup and verification through Microsoft Advertising.
- Campaign creation with targeting, creatives, and bidding strategy.
Ad Formats And Placement
- Display ads across desktop and mobile web
- Video and CTV ads across streaming environments
- Native ads integrated within publisher content
Targeting And Optimization
- First-party and contextual targeting
- Geo, device, and audience segmentation
- Frequency capping and bid optimization
Key Differentiators
Xandr positions itself as a premium, data-driven programmatic platform with strong backing from Microsoft and a growing focus on future-proof advertising.
1. Microsoft Data Integration
Access to Microsoft signals, including LinkedIn data, enables advertisers to target their audiences more effectively. That becomes especially valuable in B2B and high-value verticals where precision matters more than volume.
2. Strong CTV Presence
CTV inventory has become a major focus. Advertisers can reach users across streaming platforms with high-quality placements, often delivering better engagement compared to standard display.
3. Premium Supply Access
Unlike open networks, Xandr emphasizes curated inventory and private marketplace deals. That usually leads to better brand safety and more consistent CPM performance.
4. Privacy-First Approach
With cookies fading, Xandr invests heavily in contextual targeting and identity solutions. Campaigns remain effective without relying on third-party tracking, which is becoming a necessity rather than an option.
Ideal Use Cases
Xandr works best for teams that need scale, control, and premium inventory access.
- Running large-scale programmatic campaigns
- Expanding into CTV advertising
- Targeting high-value audiences with precision
Target Clients
Advertisers
Xandr attracts brands and agencies managing significant budgets who need access to premium inventory and advanced targeting. It is especially useful for cross-channel campaigns that include display, video, and CTV.
Publishers
Publishers using Xandr typically focus on maximizing yield through private deals and controlled auctions. The platform suits those with premium inventory looking to maintain pricing power and advertiser quality.
Key Features & Ad Formats
Xandr combines monetization, targeting, and reporting into a unified platform, making it suitable for both demand and supply-side operations at scale.
Supported Ad Formats
- Display: Standard and rich media formats across web and mobile environments.
- Video: Includes in-stream and out-stream placements, with strong adoption in CTV.
- Native: Ads integrated into content for improved engagement and user experience.
Targeting Options
- First-party audience targeting
- Contextual targeting
- Geo targeting
- Device and browser targeting
- Behavioral segmentation
Traffic Sources
- Premium publisher websites
- Mobile applications
- Connected TV platforms
- Private marketplace deals
Pros & Cons
Pricing & Business Model
Xandr operates on a programmatic auction model, where advertisers bid for impressions in real time across multiple channels.
Pricing depends on inventory quality, targeting depth, competition, and deal type. Premium placements and CTV inventory typically command higher CPMs compared to standard display.
Publishers monetize inventory through open auctions, private marketplace deals, and direct transactions. Advertisers buy media through CPM-based bidding, often optimized toward performance goals like conversions or engagement.
Pricing Structure
- CPM: Core pricing model for display, video, and CTV inventory.
- dCPM: Dynamic bidding optimized based on predicted performance.
- CPV: Used for video campaigns focused on completed views.
Minimum Spend
- Self-Serve: No fixed public minimum, but effective campaigns usually start from $1,000+ monthly
- Managed: Typically starts at $10,000+ monthly, depending on scope
Xandr User Reviews
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Comparison & Alternatives
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