{"id":52104,"date":"2023-08-10T09:42:44","date_gmt":"2023-08-10T09:42:44","guid":{"rendered":"https:\/\/adjoe.io\/?post_type=glossary&#038;p=52104"},"modified":"2025-11-06T15:21:39","modified_gmt":"2025-11-06T15:21:39","slug":"what-is-an-ad-exchange","status":"publish","type":"glossary","link":"https:\/\/adjoe.io\/zh-tw\/glossary\/what-is-an-ad-exchange\/","title":{"rendered":"Ad Exchange"},"content":{"rendered":"\n<div class=\"glossary-description\">\n\t\t<div class=\"glossary-description__wrapper\">\n              <h1 class=\"glossary-description__title\">\n          What Is an Ad Exchange? \n        <\/h1>\n      \t\t\t<div class=\"glossary-description__icon\"><\/div>\n\t\t\t<div class=\"glossary-description__text\">\n\t\t\t\tAn ad exchange is a programmatic advertising unit that ensures ad inventory within a publisher\u2019s platform can be digitally bought and sold in real time. This inventory includes any ad format such as native, display, banner, video ads and others. <br><br>As mentioned, this entire exchange occurs in real time; when users visit a mobile app or a website, an ad exchange kick-starts the bidding process and enables the highest bidder to serve their ad to this user.\n\t\t\t<\/div>\n\t\t<\/div>\n<\/div>\n\n\n\n<div class=\"glossary-takeaways\">\n\t<div class=\"container\">\n\t\t<div class=\"glossary-takeaways__wrapper\">\n\t\t\t<div class=\"glossary-takeaways__title\">\n\t\t\t\tKey Takeaways\n\t\t\t<\/div>\n\t\t\t<div class=\"glossary-takeaways__text\">\n\t\t\t\t<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Publishers sell ad inventory and advertisers buy it when they connect to the ad exchange<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ad exchanges help publishers get access to many demand partners and vice versa<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ad exchanges and ad networks should not be confused as the same thing<\/span><\/li>\n<\/ul>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">How Does an Ad Exchange Work?<\/h2>\n\n\n\n<p>In the programmatic adtech space, those offering ad inventory \u2013 publishers \u2013 are connected on a <a href=\"https:\/\/adjoe.io\/glossary\/supply-side-platform-ssp\/\" target=\"_blank\" rel=\"noreferrer noopener\">supply-side platform (SSP)<\/a> with those buying ad inventory \u2013 advertisers \u2013 on a demand-side platform (DSP). Ad exchanges connect DSPs and SSPs like a marketplace; this is why it is called an exchange.<\/p>\n\n\n\n<p>The entire process begins when a publisher makes their ad inventory available on a supply-side platform connected to an ad exchange.&nbsp;<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>The publisher communicates information about its ad inventory \u2013 for example, ad location, ad format, GEO, audience, etc. \u2013 through an SSP. A DSP is then sent a bid request.&nbsp;<\/li>\n\n\n\n<li>After gauging whether the ad inventory is attractive to them \u2013 in terms of demographic, user ID, GEO, etc. \u2013 the DSP must connect to the ad exchange and place the maximum bid that it is willing to pay for this inventory.<\/li>\n\n\n\n<li>In real time, the ad exchange selects the most successful partner for this ad slot based on the highest bid. Within a matter of milliseconds, the winning ad appears in the publisher\u2019s app or website and the user then sees it.&nbsp;<\/li>\n<\/ol>\n\n\n\n<p>When new inventory emerges, potential bidders are sent more bid requests and the bidding recommences automatically.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/adjoe.io\/app\/uploads\/2023\/08\/how-does-an-ad-exchange-work-1024x697.jpg\" alt=\"diagram showing how ad exchanges work in programmatic advertising\" class=\"wp-image-53846\" width=\"910\" srcset=\"https:\/\/adjoe.io\/wp-content\/uploads\/2023\/08\/how-does-an-ad-exchange-work-1024x697.jpg 1024w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/08\/how-does-an-ad-exchange-work-300x204.jpg 300w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/08\/how-does-an-ad-exchange-work-768x522.jpg 768w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/08\/how-does-an-ad-exchange-work-1536x1045.jpg 1536w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/08\/how-does-an-ad-exchange-work-2048x1393.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Ad Exchange vs Ad Network: What\u2019s the Difference?<\/h3>\n\n\n\n<p>Both ad exchanges and <a href=\"https:\/\/adjoe.io\/glossary\/mobile-ad-networks\/\" target=\"_blank\" rel=\"noreferrer noopener\">ad networks<\/a> are involved in the buying and selling of digital ad inventory in programmatic advertising. However, each serves a different purpose and should not be lumped together to mean the same thing.<\/p>\n\n\n\n<p>Consider an ad exchange as an open marketplace that is connected to publishers and advertisers who want to buy and sell ad inventory. Ad networks collect and buy inventory from publishers and sell it to advertisers, without them knowing exactly which inventory they\u2019re buying.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Are the Benefits of an Ad Exchange?<\/h2>\n\n\n\n<p>Ad exchanges bring numerous benefits to both publishers and advertisers alike. With the automation offered, programmatic ad buying and selling has become a highly effective way of buying and selling ads.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Benefits for Advertisers<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. Brand Safety<\/h4>\n\n\n\n<p>When connected to an ad exchange, advertisers can blacklist certain publishers and avoid particular inventory. This is especially important in cases where they don\u2019t want to be linked with a certain publisher \u2013 perhaps due to explicit or unsuitable content. Blacklisting publishers ensures advertisers don\u2019t spend much on ad inventory from that list of publishers.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. Budget Safety<\/h4>\n\n\n\n<p>Another benefit for advertisers working with ad exchanges is that they can set budget pacing options. This means they can limit the number of times their ads appear to the same user. Doing this ensures the advertiser doesn\u2019t alienate potential users and also reduces ad spend wasted on the same user. Another benefit is that advertisers can set and adjust their budget thresholds and control their advertising costs better.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/adjoe.io\/app\/uploads\/2023\/08\/benefits-of-ad-exchanges--1024x396.jpg\" alt=\"diagram showing the benefits of ad exchanges for both publishers and advertisers\" class=\"wp-image-53879\" width=\"910\" srcset=\"https:\/\/adjoe.io\/wp-content\/uploads\/2023\/08\/benefits-of-ad-exchanges--1024x396.jpg 1024w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/08\/benefits-of-ad-exchanges--300x116.jpg 300w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/08\/benefits-of-ad-exchanges--768x297.jpg 768w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/08\/benefits-of-ad-exchanges--1536x593.jpg 1536w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/08\/benefits-of-ad-exchanges--2048x791.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Benefits for Publishers<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. Brand Safety<\/h4>\n\n\n\n<p>Publishers get more control over the types of ad formats and advertisers that appear in their apps. When connected to an ad exchange, publishers can choose where and when ads are displayed, and block spammy or unsuitable advertisers or ad networks. This ensures they maintain high user engagement, reduce the risk of fraudulent users, and protect their brand image.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2.  More Control over Costs<\/h4>\n\n\n\n<p>It goes without saying that <a href=\"https:\/\/adjoe.io\/blog\/how-to-maximize-your-playtime-revenues\/\" target=\"_blank\" rel=\"noreferrer noopener\">maximum revenue<\/a> is priority number one for publishers. When publishers work with ad exchanges, they can set minimum <a href=\"https:\/\/adjoe.io\/glossary\/cost-per-mille-cpm\/\" target=\"_blank\" rel=\"noreferrer noopener\">CPMs<\/a> for their ad spaces. This means they have some control over their revenue.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion&nbsp;<\/h2>\n\n\n\n<p>Advertisers and publishers alike in the advertising space work connect via DSP and SSPs to ad exchanges to benefit from a more efficient way of buying and selling ad inventory.&nbsp;<\/p>\n\n\n\n<p>While publishers can enjoy increased brand safety and greater control over their costs, advertisers can likewise enjoy better brand safety and also budget safety \u2013 to reduce any wasted ad spend at a time when budgets are particularly tight.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">FAQs<\/h3>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1681207001782\"><strong class=\"schema-faq-question\">What Is the Role of an Ad Exchange?<\/strong> <p class=\"schema-faq-answer\">It is a programmatic advertising technology that ensures ad inventory within the app economy can be digitally bought and sold to the highest bidder in real time.<br\/><br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1684739997985\"><strong class=\"schema-faq-question\">What\u2019s the Difference between Ad Exchange and Ad Network?<\/strong> <p class=\"schema-faq-answer\">An ad exchange is an open marketplace directly connected to publishers and advertisers who want to buy and sell ad inventory. Ad networks collect and buy inventory from publishers and sell it to advertisers, without them knowing exactly which inventory they\u2019re buying.<br\/><br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1684740031834\"><strong class=\"schema-faq-question\">What Are the Benefits of an Ad Exchange?<\/strong> <p class=\"schema-faq-answer\">Publishers and advertisers both benefit from ad exchanges in different ways. While publishers enjoy greater control over costs and brand safety, advertisers enjoy greater control over their budget and brand safety.<br\/><\/p> <\/div> <\/div>\n","protected":false},"author":25,"featured_media":53876,"menu_order":0,"template":"","ppma_author":[46],"class_list":["post-52104","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Is an Ad Exchange and How Does it Work? Latest Guide<\/title>\n<meta name=\"description\" content=\"An ad exchange is a marketplace to buy and sell digital ad space. 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