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layout: page_v2
sidebarType: 5
title: Prebid Server | Features
---
# Prebid Server | Features
{: .table .table-bordered .table-striped }
| Feature Set | Feature | Description | PBS-Go | PBS-Java |
|-------------+---------+-------------+--------+----------|
| Auction | [Timeouts](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#timeout) | Lower the incoming tmax before sending to bidders in order to account for internal processing time and network delay. | 
| |
| [Currency](/prebid-server/features/pbs-currency.html) | Core | Loads currency conversions from an outside source, allows non-supported currencies to come in on the OpenRTB2 request, converts bid currencies to the request's prefered currency. | | |
| [Currency](/prebid-server/features/pbs-currency.html) | Request-Defined Rates | Allows the request to define its own currency rates. | | |
| Currency | Convert Currency Method | Allows adapters to convert bid floors to a different currency if needed. | | |
| Currency | Bidder Currency Filter | Allows adapters to define their acceptable currencies. PBS will not call them for auctions being conducted outside of this set. | | |
| [Deals](/prebid-server/features/pbs-deals.html) | Core | Basic deal support, creating hb_deal targeting when appropriate. | | |
| Deals | Deal prioritization | Supports the 'preferdeals' [targeting flag](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#targeting) to give deals the priority when PBS returns ad server targeting. | | |
| [AMP](/prebid-server/use-cases/pbs-amp.html) | Core | Reads and responds to the /openrtb2/amp endpoint | | |
| Targeting | Core | Request can specify `includewinners` and `includebidderkeys`. These cause PBS to emit seatbid[].bid[].ext.prebid.targeting values. | | |
| Targeting | Format | Request can specify `includeformat`, which causes PBS to emit hb_format along with other targeting values like hb_pb, etc. | | |
| Targeting | [Custom Targeting](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#custom-targeting) | Request can specify `ext.prebid.adservertargeting`, which causes PBS to emit custom targeting values. | | |
| Targeting | Custom Prefix | The request can specify `ext.prebid.targeting.prefix`, which causes PBS to emit targeting with this value instead of `hb` as a prefix. | | |
| Targeting | hb_env for mobile app | When called with an app object, PBS emits hb_env:mobile-app in the response targeting. | | |
| Targeting | hb_env for AMP | When called by the /amp endpoint, PBS emits hb_env:amp in the response targeting. | | |
| Request Params | Global Params | Publishers can specify [adapter-specific cross-impression attributes](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#global-bid-adapter-parameters). | | |
| [Price Granularity](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#targeting) | Core | Request can define quantization rules. Bids are quantized before being added to ad server targeting. | | |
| Price Granularity | Mediatype pricegranularity | Request can define different quantization rules for different mediatypes. Bids are quantized before being added to ad server targeting. | | |
| [Bid Adjustments](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#bid-adjustments) | Core | Allows publishers to adjust bid prices to account for gross/net or consistent discrepancies. | | |
| [Bid Adjustments](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#bid-adjustments) | By mediatype | Allows for different bid adjustments by mediatype banner, video, native, audio. | | |
| Price Floors | Core | Support for the [price floors feature](/prebid-server/features/pbs-floors.html). | | |
| GDPR | TCF 2 core | Able to: read the TCF2 global vendor list, parse incoming TCF2 consent strings, and [take appropriate enforcement action](https://docs.google.com/document/d/1fBRaodKifv1pYsWY3ia-9K96VHUjd8kKvxZlOsozm8E/edit). | | |
| GDPR | TCF 2 Account Config | Able to turn on and off TCF2 enforcement per account. | | |
| GDPR | Support for basicEnforcementVendors | Host companies can define bidders that don't require vendor consent but do require Purpose consent. | | |
| GDPR | TCF 2 Geo-Fencing | If the incoming request contains device.geo.country, PBS will enforce the EEA if the request is flagged as being in GDPR scope. | | |
| GDPR | TCF 2 Geo-Lookup | Can use a geographic lookup service to help determine whether the incoming request is in-scope for GDPR. | | |
| GDPR | TCF 2 channel exception | Can be configured to turn off GDPR checks for a specific account and a specific channel. e.g. Account 123 has a different legal basis for AMP. | | |
| DSA | DSA passthrough | Process ORTB DSA fields. | | |
| DSA | DSA initialization | [Inject account-specific ORTB DSA fields.](/prebid-server/features/pbs-privacy#dsa) | | |
| [US Privacy](/prebid-server/features/pbs-privacy.html#ccpa--us-privacy) | USP core | Able to: read the US Privacy consent string (CCPA) and [take appropriate enforcement action](https://github.com/prebid/prebid-server/issues/1129). | | |
| US Privacy | USP AMP support | Able to: read the US Privacy consent string from AMP requests and [take appropriate enforcement action](https://github.com/prebid/prebid-server/issues/1176). | | |
| [GPP](/prebid-server/features/pbs-privacy.html#gpp) | GPP Passthrough | Global Privacy Platform parameters are passed through auction and usersync requests. | | |
| [GPP](/prebid-server/features/pbs-privacy.html#gpp) | GPP TCF2/USP Support | PBS reads the Global Privacy Platform string and pulls out TCF2/USP strings when appropriate. | | |
| [GPP](/prebid-server/features/pbs-privacy.html#gpp) | [USGen Privacy Module](/prebid-server/features/pbs-usgen.html) | The Activity Control system calls this module that examines the incoming GPP parameters and determines whether a given Activity should be allowed when the request contains SIDs 7-12. | | |
| [GPP](/prebid-server/features/pbs-privacy.html#gpp) | [US Custom Logic Privacy Module](/prebid-server/features/pbs-uscustomlogic.html) | Similar to the USGen Privacy Module, but accounts specify the interpretation of the GPP string for SIDs 7-12. | | |
| COPPA | Core | Able to read the COPPA flag and [take appropriate enforcement action](https://github.com/prebid/prebid-server/issues/929). | | |
| Global Privacy Control | Core | Passes the Sec-GPC header through to bidders. | | |
| Activity Controls | Core | [Account-level controls](/prebid-server/features/pbs-activitycontrols.html) over privacy sensitive activities. | | |
| Activity Controls | GPP conditions | Support for `gppSid`, `geo`, and `gpc` conditions. | | |
| [Cache](/prebid-server/features/pbs-caching.html) | Bids core | Accepts the ext.prebid.cache.bids parameter, storing bid objects in PBC. | | |
| Cache | VAST core | Accepts the ext.prebid.cache.vastxml parameter, storing VAST responses in PBC. | | |
| Cache | Winning-only flag | Accepts a 'ext.prebid.cache.winningonly' parameter on the request. If true, instead of caching all bids and VAST, only the winning bid or VAST is stored. | | |
| Cache | Application Storage | Supports [storing data](/prebid-server/features/pbs-pbc-storage.html) beyond bids and VAST, e.g. module-specific data. | | |
| [Stored Requests](/prebid-server/features/pbs-storedreqs.html) | Core | Accepts a stored request ID in the OpenRTB, looks it up against a local data store, and merges with the OpenRTB request record. | | |
| Stored Requests | Unique Per Account | If an account ID is provided, PBS can distinguish between otherwise identical SRIDs. | | |
| Stored Requests | Unique BidRequest IDs | Supports the generate-storedrequest-bidrequest-id setting telling Prebid Server to override the static bidrequest.id in the stored request with a UUID. | | |
| [Stored Responses](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#stored-responses) | Stored Auction Responses | Accepts a stored response ID in the OpenRTB, looks it up against a local data store, and merges with the OpenRTB response record. | | |
| [Stored Responses](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#stored-responses) | Stored Bid Responses | Accepts a stored response ID in the OpenRTB, looks it up against a local data store, and uses that as the bid adapter response. | | |
| Stored Responses | JSON can be supplied on the request | Accepts JSON in the OpenRTB and merges with the OpenRTB response record. | | |
| First Party Data | Core | Accepts core [first party data](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#first-party-data-support) attributes and supports ext.prebid.data.bidders. | | |
| First Party Data | Bidder-specific global data | Accepts [bidder-specific first party data attributes](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#bidder-specific-global-fpd) for site, app, and user. | | |
| First Party Data | Bidder-specific impression data | Accepts [bidder-specific first party data attributes at the imp-level](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#bidder-specific-impression-level-fpd). | | |
| First Party Data | AMP first party data | Accepts [first party data attributes on an AMP request](/prebid-server/endpoints/openrtb2/pbs-endpoint-amp.html#first-party-data). | | |
| [Supply Chain](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#supply-chain-support) | Bidder-specific schains | Accepts bidder-specific schain | | |
| Supply Chain | Host SChain | The host company can supply a global schain that's appended to the list of incoming nodes in source.schain. | | |
| Supply Chain | ORTB 2.5 compatibility | If source.schain doesn't exist but source.ext.schain does, PBS copies the latter to the former. | | |
| Supply Chain | ORTB 2.4 compatibility | If source.schain doesn't exist but ext.schain does, PBS copies the latter to the former. | | |
| Publisher Accounts | Core | Ability to enforce that requests coming in have a valid account ID. | | |
| Publisher Accounts | AMP account parameter | Accept the account parameter on the AMP request. | | |
| Publisher Accounts | Account-specific TTLs | Allow each account ID to have a custom PBC time-to-live for banner and video. | | |
| [Video](/formats/video.html) | Core | Support for basic instream and outstream video: passes video parameters to adapters, stores VAST responses when instructed. | | |
| Video | Outstream renderers | Support for bidders specifying their own renderers for outstream video. | | |
| Video | Long-form video | Support for the [long-form video endpoint](/prebid-server/endpoints/openrtb2/pbs-endpoint-video.html). | | |
| Video | IAB advertiser category mapping | Able to map IAB advertiser categories to a supplied mapping table. | | |
| Video | [Echo video attributes](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#echo-storedrequest-video-attributes) | To support mobile video, copies stored request video attributes to the response. | | |
| Multiformat | Core | Impressions may specify more than one mediatype (banner, video, native) | | |
| Multiformat | Preferred MediaType | Bidders differ with their ability to support multiple mediatypes in a single adunit. The [preferred mediatype](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#preferred-media-type) feature allows publishers to control which mediatypes are seen by certain bidders in a multiformat scenario. | | |
| Mobile App | [Request Passthrough](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#request-passthrough) | Apps can pass render-time parameters from the request through to the response. | | |
| [Audio](/prebid-server/features/pbs-audio.html) | Core | Passes the audio mediatype through to bidders that support audio. | | |
| [Native](/prebid-server/features/pbs-native.html) | Core | Passes the native mediatype through to bidders that support native. | | |
| Native | asset type preprocessing | If a native bid response doesn't contain asset.type, PBS will link to the asset in the request by ID and copy the type into the response. | | |
| [Interstitials](/prebid-server/features/pbs-interstitials.html) | Core | Support device.ext.prebid.interstitial.minwidthperc and device.ext.prebid.interstitial.minheightperc parameters, [dynamically updating the impression format object](https://github.com/prebid/prebid-server/issues/755) from a configurable list of sizes filtered by these parameters. | | |
| [Aliases](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#bidder-aliases) | Core | Maps a biddercode on an incoming request to a specific server-side bid adapter named in the request or defined in config. | | |
| Aliases | [GVL ID support](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#bidder-alias-gvl-ids) | Define the IAB GVL ID for an aliased biddercode. | | |
| [User ID Sync](/prebid-server/developers/pbs-cookie-sync.html) | Core | Implements the /cookie_sync and /setuid endpoints. Bidders may choose either redirect or iframe method. | | |
| User ID Sync | Multi-Method | Bidders can supply both pixel redirects as well as iframe syncs. | | |
| User ID Sync | Cooperative sync | Does a pixel sync with more than just the bidders on the page. | | |
| User ID Sync | Account override | Allows accounts to override the cooperative sync feature and bidder limits. | | |
| User ID | [EID Permissions](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#eid-permissions) | The Publisher can define which bidders receive which extended user IDs. | | |
| [Events](https://docs.google.com/document/d/1ry0X4C2EV-R0pMrm1IQk9BstxaT395UCl3KKqTGa5c8/edit#heading=h.7w5yevygp2gz) | Events | Ability to process the /event endpoint, place /event URLs in the OpenRTB response, and place /event URLs in VAST XML. | | |
| Events | Events vasttrack endpoint | Ability to process the /vasttrack endpoint initated by Prebid.js, placing /event URLs in VAST XML. | | |
| Events | Events BidID Generation | Some bidders don't generate unique enough BidIDs to join with auction events. This feature allows the host company to inject a PBS-generated BidID alongside the bidder-generated ID. | | |
| Auction | [MultiBid](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#multibid) | Allow named bidders to supply more than one response. | | |
| Analytics | Analytics module support | Allows developers to plug in a [custom analytics adapter](/prebid-server/developers/pbs-build-an-analytics-adapter.html). | | |
| Analytics | Client-side analytics support | Share [analytics tags](/prebid-server/developers/module-atags.html) with client-side analytics adapters. | | |
| Bid Response Validation | Validate secure markup | PBS can configurably reject bid responses that don't supply a secure creative when in a secure context. | | |
| Bid Response Validation | Validate bid sizes | PBS can configurably reject bid responses with sizes that are bigger than the request dimensions. | | |
| [Bidder Info Endpoints](/prebid-server/endpoints/info/pbs-endpoint-info.html) | Core | Provides details on which bidders and parameters exist in this Prebid Server. | | |
| [Troubleshooting](/troubleshooting/pbs-troubleshooting.html) | Test flag | Accepts the OpenRTB 'test' flag, emitting additional debug info on responses. | | |
| Troubleshooting | Debug flag | Accepts the ext.prebid.debug flag, emitting additional debug info on responses. | | |
| Troubleshooting | Account-level Debug Control | Allows host companies to turn off debugging by account but allow for request-level overrides. | | |
| Operations | Core metrics | Emits detailed operational metrics to back-end systems: Graphite, Influx, and Prometheus | | |
| Operations | Circuit breaker | Protects system performance during fault scenarios by detecting problems with external and internal endpoints, turning them off temporarily when a problem occurs. | | |
| Operations | [Server default request](/prebid-server/features/pbs-default-request.html) | Support global defaults for incoming requests. | | |
| Operations | IPv6 | Support taking IPv6 addresses and forwarding them to bidders. | | |
| Operations | [Request Logging Admin Endpoints](/troubleshooting/pbs-troubleshooting.html#request-logging) | Log a limited number of requests to understand the raw data clients are sending. | | |
| Metadata | [x-prebid header](/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html#http-headers) | Put version information in outgoing HTTP headers. | | |
| Modules | [ortb2-blocking](/prebid-server/pbs-modules/ortb2-blocking.html) | Configure per-account OpenRTB blocking details. | | |
| Anti-Fraud | Ads.Cert 2.0 Authenticated Connections | Includes authenticated connection signing header on outgoing bid requests to supported adapters. * | | |
| Request Enrichment | Enhanced tid and request IDs | Fills out id, imp.id, source.tid, and imp.ext.tid | | |
| Request Enrichment | [Request Correction Module](/prebid-server/pbs-modules/request-correction.html) | Address client-side bugs that are stuck out in the wild. | | |
| Privacy Sandbox | Passthrough | "auction enabled" flags are passed through to bidders and auctionconfig is forwarded from bidders. | | |
| Privacy Sandbox | Topics headers | PBS reads the Chrome topics header and copies to user.data segments. | | |
| Privacy Sandbox | Testing labels | PBS reads the Chrome labels header and copies to device.ext.cdep | | |
| Auction Response | Bidders can supply [Fledge](https://github.com/google/ads-privacy/tree/master/proposals/fledge-multiple-seller-testing) auction config | If the request contains imp.ext.ae, bid adapters can return ext.prebid.fledge.auctionconfigs | | |
| Auction Response | [Response Correction Module](/prebid-server/pbs-modules/response-correction.html)| Deal with problems caused by certain unexpected bid responses. | | |
\* Experimental feature not yet recommended for production.