> For the complete documentation index, see [llms.txt](https://docs.relevant-digital.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.relevant-digital.com/hb-manager/auction-behavior-and-optimization.md).

# Auction behavior and optimization

Control how HB Manager runs auctions, loads placements, and applies bidder settings. Start with shared auction parameters, then tune demand paths, placement behavior, targeting, and experiments.

### Configure auction behavior

* [Manage Prebid settings with Prebid Parameters](/hb-manager/auction-behavior-and-optimization/manage-prebid-settings-with-prebid-parameters.md) — Apply shared Prebid settings across configurations.
* [Prebid parameters - Advanced](/hb-manager/auction-behavior-and-optimization/prebid-parameters-advanced.md) — Configure advanced Prebid parameters.
* [Bidder specific Demand Path Optimisation (DPO) setup](/hb-manager/auction-behavior-and-optimization/bidder-specific-demand-path-optimisation-dpo-setup.md) — Configure bidder-specific demand paths.
* [How to Use alternativeBidder](/hb-manager/auction-behavior-and-optimization/how-to-use-alternativebidder.md) — Configure fallback bidder behavior.
* [When to Use Consent in Relation to Yield](/hb-manager/auction-behavior-and-optimization/when-to-use-consent-in-relation-to-yield.md) — Choose the right consent approach for your setup.

### Control placement loading

* [Ad Refresh in HB Manager](/hb-manager/auction-behavior-and-optimization/ad-refresh-in-hb-manager.md) — Configure refresh behavior for HB Manager placements.
* [Lazy Loading Ads in HB Manager](/hb-manager/auction-behavior-and-optimization/lazy-loading-ads-in-hb-manager.md) — Delay ad loading until placements are needed.
* [Lazy loading with GAM](/hb-manager/auction-behavior-and-optimization/lazy-loading-with-gam.md) — Coordinate lazy loading with Google Ad Manager.
* [How to Activate/Deactivate Prebid/Header bidding on specific placements (Only for web)](/hb-manager/auction-behavior-and-optimization/how-to-activate-deactivate-prebid-header-bidding-on-specific-placements-only-for-web.md) — Enable or disable bidding for selected web placements.

### Optimize and test

* [How to Use the Prebid Floor Price Module and Automatically Set Floor Prices in Your Ad Server](/hb-manager/auction-behavior-and-optimization/how-to-use-the-prebid-floor-price-module-and-automatically-set-floor-prices-in-your-ad-server.md) — Configure price floors and ad server targeting.
* [Multivariate A/B testing and using child prebid configurations](/hb-manager/auction-behavior-and-optimization/multivariate-a-b-testing-and-using-child-prebid-configurations.md) — Test configuration changes with controlled experiments.
* [Configuration targeting for User countries](/hb-manager/auction-behavior-and-optimization/configuration-targeting-for-user-countries.md) — Target configurations by user country.


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