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Glossário do Sandbox de privacidade

Os artigos e a documentação do Sandbox de privacidade pressupõem o conhecimento de conceitos de privacidade, publicidade e desenvolvimento da Web. Este glossário explica os principais termos relacionados ao Sandbox de privacidade.

Leilão de anúncios (API Protected Audience)

In the Protected Audience API, an ad auction is run by a seller (likely to be an SSP or maybe the publisher itself), in JavaScript code in the browser on the user's device, to sell ad space on a site that displays ads.

Criativo do anúncio, criativo

O criativo do anúncio refere-se ao conteúdo do anúncio veiculado aos usuários. Os criativos podem ser imagens, vídeos, áudio e outros formatos. Os criativos residem em um espaço publicitário e são veiculados por tecnologias de publicidade em itens de linha.

Ad Exchange

An ad exchange is a platform to automate buying and selling of ad inventory from multiple ad networks.

Inventário de anúncios, espaço publicitário

Ad inventory space is the space or spaces for ads that are available from a site that sells ad space.

Plataforma de publicidade (adtech)

An ad platform is a company that provides services to deliver ads.

Advertiser

Um anunciante é uma empresa que paga para anunciar produtos.

Contabilização de relatórios agregáveis

A distributed ledger, located in both coordinators, that tracks the allocated privacy budget and enforces the 'No Duplicates' rule. This is the privacy preserving mechanism, located and run within coordinators, that ensures no reports pass through the Aggregation Service beyond the allocated privacy budget.

Orçamento de contabilidade de relatórios agregáveis

References to the budget that ensures individual reports are not processed more than once.

Relatórios agregáveis

Os relatórios criptografados são enviados de dispositivos de usuários individuais. Esses relatórios contêm dados sobre o comportamento do usuário entre sites e as conversões. As conversões (às vezes chamadas de eventos acionador de atribuição) e as métricas associadas são definidas pelo anunciante ou pela adtech. Cada relatório é criptografado para impedir que várias partes acessem os dados.

Saiba mais sobre os relatórios com agregação.

Serviço de agregação

An ad tech-operated service that processes aggregatable reports to create a summary report.

Read more about the Aggregation Service backstory in our explainer and the full terms list.

Chamador de API

An API caller is an entity, such as an app, a third-party SDK, or a website, that makes a request to the Topics API to access a user's interests.

Declaração

Um mecanismo para autenticar a identidade do software, geralmente com hashes criptográficos ou assinaturas. Para a proposta de serviço de agregação, o atestado corresponde ao código executado no serviço de agregação operado pela adtech com o código de código aberto.

Atribuição

Attribution refers to the identification of user actions that contribute to an outcome.

For example, a correlation of ad clicks or views with conversions.

Blink

Blink is the rendering engine used by Chrome, developed as part of the Chromium project.

Negociante

A buyer is a party bidding for ad space in an ad auction, likely to be a DSP, or maybe the advertiser itself. Ad space buyers own and manage interest groups.

Publishers make ad inventory available through marketplaces called ad exchanges, and buyers compete in real time through a DSP for the opportunity to place their advertisement.

Learn about ad space buyers in the Protected Audience API.

Chromium

Chromium is an open-source web browser project. Chrome, Microsoft Edge, Opera and other browsers are based on Chromium.

Conversão de clique (CTC)

A click-through conversion is a conversion attributed to an ad that was clicked.

Taxa de cliques (CTR)

The click-through rate is the ratio of users who click on an ad, having seen it.

Vinculação de contribuição

Aggregatable reports may contain an arbitrary number of counter increments. For example, a report may contain a count of products that a user has viewed on an advertiser's site. The sum of increments in all aggregatable reports related to a single source event must not exceed a given limit, such as L1=2^16 (65,536).

Learn more in the aggregatable reports explainer.

Conversão

A conversion is the completion of some desired goal following action by a user.

For example, a conversion may occur with the purchase of a product or sign-up for a newsletter after clicking an ad that links to the advertiser's site.

A cookie is a small piece of textual data that websites can store on a user's browser. Cookies can be used by a website to save information associated with a user (or a reference to data stored on the website's backend servers) as the user moves across the web.

For example, an online store can retain shopping cart details even if a user is not logged in, or the site could record the user's browsing activity on their site. See First-party cookie and Third-party cookie.

Coordenador

Entities responsible for key management and aggregatable report accounting. A Coordinator maintains a list of hashes of approved aggregation service configurations and configures access to decryption keys.

Dados gerais

Coarse data refers to limited information provided by Attribution Reporting API event-level reports. This is limited to 3 pieces of conversion data for clicks and 1 piece for views. Specific, granular conversion data (such as specific prices of items and timestamps) are not included.

Plataforma de gerenciamento de dados (DMP, na sigla em inglês)

A data management platform is software used to collect and manage data relevant for advertisers. These platforms help advertisers and publishers identify audience segments, which can then be used for campaign targeting.

Learn more about DMPs.

Plataforma de demanda (DSP)

A demand-side platform is an ad tech service used to automate ad purchasing. DSPs are used by advertisers to buy ad impressions across a range of publisher sites.

Privacidade diferencial

Differential privacy refers to techniques to allow sharing of information about a dataset to reveal patterns of behaviour without revealing private information about individuals or whether they belong to the dataset.

Domínio

Domínio. Consulte Domínio de nível superior e eTLD.

Entropia

A entropia, no domínio de privacidade, é uma medida de quanto um item de dados revela identidade individual.

A entropia de dados é medida em bits. Quanto mais os dados revelarem identidade, maior será seu valor de entropia.

Os dados podem ser combinados para identificar um indivíduo, mas pode ser difícil descobrir se os novos dados aumentam a entropia. Por exemplo, saber que uma pessoa é da Austrália não reduzirá a entropia se você já souber que ela é da Ilha de Kangaroo.

Período

In the Topics API, an epoch is the period of time during which the browser infers topics for a user based on their browsing activity. It is currently set to one week.

eTLD, eTLD+1

eTLDs are effective top-level domains (TLD), which are defined by the Public Suffix List.

For example:

co.uk 
github.io 
glitch.me

Effective TLDs are what allow foo.appspot.com to be a different site from bar.appspot.com. The eTLD in this case is appspot.com, and the whole site name (foo.appspot.com, bar.appspot.com) is known as the eTLD+1.

Relatório no nível do evento

Event-level reports associate a particular ad click or view (on the ad side) with data on the conversion side. To preserve user privacy by limiting the joining of user identity across sites, conversion-side data is very limited, and the data is noisy.

API Federated Credential Management (FedCM)

Federated Credential Management API is a proposal for a privacy-preserving approach to federated identity services. This will allow users to log into sites without sharing their personal information with the identity service or the site.

FedCM was previously known as WebID, and is still in development in the W3C.

Identidade federada (login federado)

Federated identity is a third-party platform to allow a user to sign in to a website, without requiring the site to implement their own identity service.

Frame isolado

A (<fencedframe>) is a proposed HTML element for embedded content, similar to an iframe. Unlike iframes, a fenced frame restricts communication with its embedding context to allow the frame access to cross-site data without sharing it with the embedding context.

Some Privacy Sandbox APIs may require select documents to render within a fenced frame. Learn more about the Fenced Frames proposal.

Técnicas de impressão digital

Fingerprinting encompasses techniques to identify and track the behaviour of individual users.

Fingerprinting uses mechanisms that users aren't aware of and can't control.

Superfície de impressão digital

A fingerprinting surface is something that can be used (probably in combination with other surfaces) to identify a particular user or device.

For example, the navigator.userAgent() JavaScript method and the User-Agent HTTP request header provide access to a fingerprinting surface (the User-Agent string).

Integração própria

First party refers to resources from the site you're visiting.

For example, the page you're reading is on the site developer.chrome.com and includes resources requested from this site. Requests for those first-party resources are called 'first-party requests'. Cookies from developer.chrome.com stored while you're on this site are called first-party cookies.

I2E

Intent to Experiment (I2E) is the announcement of a plan to make a new Blink feature available to users for testing, typically through an origin trial.

I2EE

Intent to Extend Experiment (I2EE) is an announcement of a plan to extend the duration of an origin trial.

I2P

Intent to Prototype (I2P) is the first stage in developing a new feature in Blink. The announcement is posted to the blink-dev mailing list with a link to the proposal for discussion.

I2S

Intent to Ship (I2S) is an announcement of a plan to make a new feature of Blink available to users in stable versions of Chrome.

Impressão

A impressão pode se referir a:

Visualização de um anúncio. Veja também taxa de cliques.
Um espaço de anúncio: a marcação HTML (geralmente tags <div>) em uma página da Web em que um anúncio pode ser exibido. Os espaços de anúncio constituem o inventário.

Publicidade com base em interesses (IBA)

Interest-based advertising (IBA) is a form of personalized advertising in which an ad is selected for a user based on their interests, inferred from the user's activity: the sites they've recently visited on the web, or the apps they used on Android. This is different from contextual advertising, which aims to match ads to the content the user is viewing.

Grupo de interesse

In the Protected Audience API, formerly FLEDGE, an interest group represents a group of people with a common interest, corresponding to a remarketing list.

Every interest group has an owner. Different types of owners will create different types of interest groups with different use cases.

Inventário

Inventory is the ad slots available on a site. Ad slots are the HTML markup (usually <div> tags) where ads can be displayed.

k-anonimato

K-anonymity is the measure of anonymity within a data set. If you have k anonymity, you can't be distinguished from k-1 other individuals in the data set. In other words, k individuals have the same information (including you).

Ruído e escalonamento

Statistical noise that is added to summary reports during the aggregation process to preserve privacy and ensure the final reports provide anonymized measurement information.

Read more about additive noise mechanism, which is drawn from Laplace distribution.

Valor de uso único

A nonce is an arbitrary number used only once in cryptographic communication.

Origem

An origin is defined by the scheme (protocol), hostname (domain), and port of the URL used to access it.

For example: https://developer.chrome.com

Teste de origem

Os testes de origem são testes que dão acesso a um recurso novo ou experimental para possibilitar a criação de funções que os usuários podem testar por um tempo limitado antes que o recurso seja disponibilizado para todos.

Quando o Chrome oferece um teste de origem para um recurso, uma origem pode ser registrada para o teste a fim de permitir o recurso a todos os usuários nessa origem, sem exigir que eles alternem as sinalizações ou um build alternativo do Chrome (embora talvez seja necessário fazer upgrade). Os testes de origem permitem que os desenvolvedores criem demonstrações e protótipos usando novos recursos. Os testes ajudam os engenheiros do Chrome a entender como novos recursos são usados e como podem interagir com outras tecnologias da Web.

Saiba mais em Primeiros passos com os testes de origem do Chrome.

Superfície passiva

Passive surfaces are fingerprinting surfaces—such as User-Agent strings, IP addresses, and Accept-Language headers—that are available to every website, whether the site asks for them or not.

Passive surfaces can easily consume a site's privacy budget.

The Privacy Sandbox initiative proposes replacing passive surfaces with active ways to get specific information, for example using Client Hints a single time to get the user's language rather than having an Accept-Language header for every response to every server.

API Protected Audience

The Protected Audience API is the new name for the FLEDGE API.

Editor

In the Privacy Sandbox context, a publisher is a site with ad space that is paid to display ads.

Alcance

O alcance representa o número total de pessoas que veem um anúncio ou que visitam uma página da Web que exibe o anúncio.

Lances em tempo real (RTB)

Real-time bidding refers to an automated auction for buying and selling ad impressions on websites, completed during page load.

Remarketing

Remarketing é a prática de anunciar para pessoas que já visitaram seu site em outros sites.

Por exemplo, uma loja on-line pode exibir anúncios de uma venda de brinquedos para pessoas que já visualizaram brinquedos no site.

Origem do relatório

A entidade que recebe relatórios agregáveis, ou seja, você ou uma adtech que chamou a API Attribution Reporting. Os relatórios agregáveis são enviados dos dispositivos dos usuários para um URL conhecido associado à origem do relatório. A origem do relatório é designada durante o registro.

Fator de dimensionamento

Scaling factor, in the context of the Attribution Reporting API, refers an amount by which you choose to multiply an aggregatable value. Scaling impacts the effect of noise and your contribution budget.

Vendedor

O vendedor é quem faz um leilão de anúncios, provavelmente é uma SSP ou talvez o próprio editor.

ID compartilhado

A computed value that consists of shared_info, reporting_origin, destination_site (for Attribution Reporting API only), source_registration-time (for Attribution Reporting API only), scheduled_report_time, and version.

Multiple reports that share the same attributes in the shared_info field should have the same shared ID. Shared IDs play an important role within Aggregatable Report Accounting.

Site

A site is equivalent to an eTLD+1 along with a scheme (protocol).

Particionamento de armazenamento

Storage partitioning is a mechanism in Chrome to prevent certain types of side-channel cross-site tracking, Chrome is partitioning storage and communications APIs in third-party contexts.

Storage partitioning prevents a site from joining data across different sites to track the user across the web.

Relatório do resumo

An Attribution Reporting API and Private Aggregation API report type. A summary report includes aggregated user data, and can contain detailed conversion data with noise added. Summary reports are made up of aggregate reports. They allow for greater flexibility and provide a richer data model than event-level reporting, particularly for some use-cases like conversion values.

Plataforma de fornecimento, plataforma de venda

A supply-side platform is an ad tech service used to automate selling ad inventory. SSPs allow publishers to offer their inventory (empty rectangles where ads will go) to multiple ad exchanges, DSPs, and networks. This enables a wide range of potential buyers to bid for ad space.

Superfície

Surface. See Fingerprinting surface and Passive surface.

Third party refers to resources served from a domain that's different from the website you're visiting.

For example, a website foo.com might use analytics code from google-analytics.com (via JavaScript), fonts from use.typekit.net (via a link element) and a video from vimeo.com (in an iframe). See also First-party.

Um cookie de terceiros é um cookie armazenado por um serviço terceirizado.

Por exemplo, um site de vídeos pode incluir um botão Assistir mais tarde no player incorporado para permitir que o usuário adicione um vídeo à lista de desejos sem forçá-lo a navegar até o site do vídeo.

Consulte também Cookie primário.

Domínio de nível superior (TLD)

Top-level domains such as .com and .org are listed in the Root Zone Database.

Tópico

A topic is a human-readable topic of interest of a user and is part of the Topics taxonomy.

Taxonomia de tópicos

The Topics taxonomy is a public, human-curated, human-readable hierarchy of categories that the Topics API uses to represent users' interests.

Ambiente de execução confiável (TEE)

A secure configuration of computer hardware and software that allows external parties to verify the exact versions of software running on the machine without fear of exposure. TEEs allow external parties to verify that the software does exactly what the software manufacturer claims it does—nothing more or less.

To learn more about TEEs used for the Privacy Sandbox proposals, read the Protected Audience API services explainer and the Aggregation Service explainer.

Dicas de cliente HTTP do user agent (UA-CH)

User-agent client hints provide specific pieces of the User-Agent string on explicit request. This helps reduce passive surfaces in the User-Agent string which may lead to user identification or covert tracking.

UA-CH is sometimes referred to as "Client Hints."

String do user agent

A user-agent string is an HTTP header used by servers and network peers to request identifying information about an application, operating system, vendor, or version of a user agent. The User-Agent string broadcasts a large string of data, which is problematic for user privacy. User-Agent reduction is proposed to remove sensitive information and reduce passive fingerprinting.

.well-known

.well-known is a file used to add redirects to a website from standardized URLs.

For example, password managers can make it easier for users to update passwords if a website sets a redirect from /.well-known/change-password to the change password page of the site.

In addition, it can be useful to access policy or other information about a host before making a request. For example, robots.txt tells web crawlers which pages to visit and which pages to ignore. IETF RFC8615 outlines a standardized way to make site-wide metadata accessible in standard locations in a /.well-known/ subdirectory.

See a list of recommendations for .well-known at iana.org/assignments/well-known-uris/well-known-uris.xhtml.

Worklet

A worklet allows you to run specific JavaScript functions and return information back to the requester. Within a worklet, you can execute JavaScript but you cannot interact or communicate with the outside page.

Worklets are used to store and extract data with the Shared Storage API.