Publicité en ligne

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Publicité en ligne[6], also known as digital publicité[7], is a modern stratégie de marketing[4] qui utilise le Internet[9] to deliver promotional content to consumers. It originated around the mid-1990s and has since undergone significant evolution, notably shifting from early restrictions on commercial activities on networks like ARPANET and NSFNet. Online advertising includes various formats such as floating ads, expanding ads, trick banners, and news feed ads. It utilizes advanced technologie[8] like programmatic advertising and data management platforms to automate ad sale and delivery, improve targeting, and enhance efficiency. Key strategies under online advertising include Search Engine Marketing[2] (SEM), Optimisation des moteurs de recherche[1] (SEO), sponsored search, social media marketing[3]et mobile advertising[5]. These strategies aim to increase site web[10] visibility, improve relevance to search terms, and deliver ad content across different platforms and devices.

Définitions des termes
1. Optimisation des moteurs de recherche ( Optimisation des moteurs de recherche ) L'optimisation des moteurs de recherche, communément appelée "SEO", est une stratégie de marketing numérique essentielle. Apparue au milieu des années 90, l'optimisation des moteurs de recherche consiste à améliorer les sites web pour qu'ils soient mieux classés dans les pages de résultats des moteurs de recherche. Ce processus est essentiel pour augmenter le trafic web et convertir les visiteurs en clients. Le référencement fait appel à diverses techniques, notamment la conception des pages, l'optimisation des mots clés et la mise à jour du contenu, afin d'améliorer la visibilité d'un site web. Il implique également l'utilisation d'outils permettant de surveiller et de s'adapter aux mises à jour des moteurs de recherche. Les pratiques de référencement vont des méthodes éthiques "chapeau blanc" aux techniques désapprouvées "chapeau noir", le "chapeau gris" se situant à mi-chemin entre les deux. Bien que le référencement ne convienne pas à tous les sites web, son efficacité dans les campagnes de marketing en ligne ne doit pas être sous-estimée. Les tendances récentes du secteur, telles que l'utilisation du web mobile dépassant celle des ordinateurs de bureau, mettent en évidence l'évolution du paysage du référencement.
2. Marketing par moteur de recherche ( Search Engine Marketing ) Search Engine Marketing (SEM) refers to the practice of marketing a business using paid advertisements that appear on search engine results pages. These advertisements are often driven by bids on keywords that users of services such as Google and Bing might enter when looking for certain products or services. SEM offers advertisers the opportunity to put their ads in front of motivated customers who are ready to make a purchase. The evolution of SEM has integrated a range of strategies, such as search engine optimization (SEO), paid listings management, and online marketing strategies like pay-per-click (PPC) programs. The technique is crucial in today's digital era, aiding various industries in attracting consumers and increasing opportunities. Despite challenges such as competition and evolving search algorithms, SEM continues to be a vital tool for online visibility and business growth.

Publicité en ligneégalement connu sous le nom de online marketing, Internet advertising, digital advertising ou web advertising, is a form of marketing and advertising that uses the Internet to promote products and services to audiences and platform users. Online advertising includes email marketing, search engine marketing (SEM), social media marketing, many types of display advertising (including web banner advertising), and mobile advertising. Advertisements are increasingly being delivered via automated software systems operating across multiple websites, media services and platforms, known as programmatic advertising.

Like other advertising media, online advertising frequently involves a publisher, who integrates advertisements into its online content, and an advertiser, who provides the advertisements to be displayed on the publisher's content. Other potential participants include advertising agencies that help generate and place the ad copy, an ad server which technologically delivers the ad and tracks statistics, and advertising affiliates who do independent promotional work for the advertiser.

In 2016, Internet advertising revenues in the United States surpassed those of cable television et broadcast television. In 2017, Internet advertising revenues in the United States totaled $83.0 billion, a 14% increase over the $72.50 billion in revenues in 2016. And research estimates for 2019's online advertising spend put it at $125.2 billion in the United States, some $54.8 billion higher than the spend on television ($70.4 billion).

Many common online advertising practices are controversial and, as a result, have become increasingly subject to regulation. Many internet users also find online advertising disruptive and have increasingly turned to ad blocking for a variety of reasons. Online ad revenues also may not adequately replace other publishers' revenue streams. Declining ad revenue has led some publishers to place their content behind paywalls.

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