{"id":14721,"date":"2010-08-19T20:34:16","date_gmt":"2010-08-19T15:04:16","guid":{"rendered":"https:\/\/www.quickonlinetips.com\/archives\/?p=14721"},"modified":"2026-10-07T20:35:03","modified_gmt":"2026-10-07T15:05:03","slug":"online-advertising-acronyms","status":"publish","type":"post","link":"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/","title":{"rendered":"Online Advertising Acronyms: 15 Ad Terms Explained (2026)"},"content":{"rendered":"<p>How many <strong>online advertising acronyms<\/strong> do you know? Whether you run AdSense on a blog, buy Google Ads for a small business or just read marketing reports, the same short forms keep showing up: CPC, CPM, CTR, RPM, ROAS and more. This guide explains the most common ad terms in plain English, with simple formulas and examples, updated for 2026.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-63562\" src=\"https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/online-advertising-acronyms-2026.webp\" alt=\"online advertising acronyms explained\" width=\"1200\" height=\"630\" srcset=\"https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/online-advertising-acronyms-2026.webp 1200w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/online-advertising-acronyms-2026-300x158.webp 300w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/online-advertising-acronyms-2026-1024x538.webp 1024w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/online-advertising-acronyms-2026-150x79.webp 150w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/online-advertising-acronyms-2026-768x403.webp 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<div class=\"quick-answer\" style=\"border-left: 4px solid #F28C1E; background: #f6f8fb; padding: 14px 18px; margin: 18px 0;\"><strong>Quick answer:<\/strong> The most important online advertising acronyms are <strong>CPC<\/strong> (cost per click), <strong>CPM<\/strong> (cost per 1,000 impressions), <strong>CTR<\/strong> (click-through rate), <strong>RPM<\/strong> (publisher revenue per 1,000 impressions), <strong>CPA<\/strong> (cost per action) and <strong>ROAS<\/strong> (return on ad spend). Advertisers watch cost and ROAS; publishers watch RPM and CTR.<\/div>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6afa305da24a7\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #1a202c;color:#1a202c\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #1a202c;color:#1a202c\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6afa305da24a7\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#Online_advertising_acronyms_at_a_glance\" >Online advertising acronyms at a glance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#Traffic_terms\" >Traffic terms<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#1_UV_%E2%80%93_Unique_visitors\" >1. UV &#8211; Unique visitors<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#2_PV_%E2%80%93_Page_views\" >2. PV &#8211; Page views<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#Pricing_models\" >Pricing models<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#3_CPC_and_PPC_%E2%80%93_Cost_per_click_Pay_per_click\" >3. CPC and PPC &#8211; Cost per click \/ Pay per click<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#4_CPM_%E2%80%93_Cost_per_mille\" >4. CPM &#8211; Cost per mille<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#5_vCPM_%E2%80%93_Viewable_CPM\" >5. vCPM &#8211; Viewable CPM<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#6_CPV_%E2%80%93_Cost_per_view\" >6. CPV &#8211; Cost per view<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#7_CPA_%E2%80%93_Cost_per_action_or_acquisition\" >7. CPA &#8211; Cost per action (or acquisition)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#8_CPL_%E2%80%93_Cost_per_lead\" >8. CPL &#8211; Cost per lead<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#9_CPS_%E2%80%93_Cost_per_sale\" >9. CPS &#8211; Cost per sale<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#Performance_terms\" >Performance terms<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#10_CTR_%E2%80%93_Click-through_rate\" >10. CTR &#8211; Click-through rate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#11_CR_or_CVR_%E2%80%93_Conversion_rate\" >11. CR or CVR &#8211; Conversion rate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#12_RPM_and_eCPM_%E2%80%93_Publisher_earnings_per_1000\" >12. RPM and eCPM &#8211; Publisher earnings per 1,000<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#13_ROAS_%E2%80%93_Return_on_ad_spend\" >13. ROAS &#8211; Return on ad spend<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#Ad_tech_terms\" >Ad tech terms<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#14_RTB_%E2%80%93_Real-time_bidding\" >14. RTB &#8211; Real-time bidding<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#15_DSP_and_SSP_%E2%80%93_Demand-side_and_supply-side_platforms\" >15. DSP and SSP &#8211; Demand-side and supply-side platforms<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#Which_acronyms_matter_most_for_you\" >Which acronyms matter most for you?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#FAQ\" >FAQ<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#What_is_the_difference_between_CPM_and_RPM\" >What is the difference between CPM and RPM?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#What_is_a_good_CTR_for_ads\" >What is a good CTR for ads?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#Is_PPC_the_same_as_CPC\" >Is PPC the same as CPC?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/08\/online-advertising-acronyms\/#What_does_ROAS_mean_in_online_advertising\" >What does ROAS mean in online advertising?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Online_advertising_acronyms_at_a_glance\"><\/span>Online advertising acronyms at a glance<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>Acronym<\/th>\n<th>Stands for<\/th>\n<th>Who uses it<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>UV<\/strong><\/td>\n<td>Unique visitors<\/td>\n<td>Publishers, analytics<\/td>\n<\/tr>\n<tr>\n<td><strong>PV<\/strong><\/td>\n<td>Page views<\/td>\n<td>Publishers, analytics<\/td>\n<\/tr>\n<tr>\n<td><strong>CPC \/ PPC<\/strong><\/td>\n<td>Cost per click \/ Pay per click<\/td>\n<td>Advertisers, publishers<\/td>\n<\/tr>\n<tr>\n<td><strong>CPM<\/strong><\/td>\n<td>Cost per mille (1,000 impressions)<\/td>\n<td>Advertisers, display ads<\/td>\n<\/tr>\n<tr>\n<td><strong>vCPM<\/strong><\/td>\n<td>Viewable cost per mille<\/td>\n<td>Advertisers<\/td>\n<\/tr>\n<tr>\n<td><strong>RPM \/ eCPM<\/strong><\/td>\n<td>Revenue per mille \/ Effective CPM<\/td>\n<td>Publishers<\/td>\n<\/tr>\n<tr>\n<td><strong>CTR<\/strong><\/td>\n<td>Click-through rate<\/td>\n<td>Everyone<\/td>\n<\/tr>\n<tr>\n<td><strong>CPV<\/strong><\/td>\n<td>Cost per view<\/td>\n<td>Video advertisers<\/td>\n<\/tr>\n<tr>\n<td><strong>CPA<\/strong><\/td>\n<td>Cost per action (acquisition)<\/td>\n<td>Advertisers, affiliates<\/td>\n<\/tr>\n<tr>\n<td><strong>CPL<\/strong><\/td>\n<td>Cost per lead<\/td>\n<td>Advertisers, affiliates<\/td>\n<\/tr>\n<tr>\n<td><strong>CPS<\/strong><\/td>\n<td>Cost per sale<\/td>\n<td>Affiliates, merchants<\/td>\n<\/tr>\n<tr>\n<td><strong>CR \/ CVR<\/strong><\/td>\n<td>Conversion rate<\/td>\n<td>Advertisers, marketers<\/td>\n<\/tr>\n<tr>\n<td><strong>ROAS<\/strong><\/td>\n<td>Return on ad spend<\/td>\n<td>Advertisers<\/td>\n<\/tr>\n<tr>\n<td><strong>RTB<\/strong><\/td>\n<td>Real-time bidding<\/td>\n<td>Ad tech<\/td>\n<\/tr>\n<tr>\n<td><strong>DSP \/ SSP<\/strong><\/td>\n<td>Demand-side \/ Supply-side platform<\/td>\n<td>Ad tech<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Traffic_terms\"><\/span>Traffic terms<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1_UV_%E2%80%93_Unique_visitors\"><\/span>1. UV &#8211; Unique visitors<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The number of different people (in practice, browsers or devices) that visited a site in a period such as a day or month. One person returning five times is still one unique visitor. In <a href=\"https:\/\/marketingplatform.google.com\/about\/analytics\/\" target=\"_blank\" rel=\"noopener\">Google Analytics 4<\/a> the closest metric is <em>Users<\/em> or <em>Active users<\/em>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_PV_%E2%80%93_Page_views\"><\/span>2. PV &#8211; Page views<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The total number of pages loaded. Page views are always equal to or higher than unique visitors, because one visitor often reads several pages. GA4 calls this <em>Views<\/em>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Pricing_models\"><\/span>Pricing models<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"3_CPC_and_PPC_%E2%80%93_Cost_per_click_Pay_per_click\"><\/span>3. CPC and PPC &#8211; Cost per click \/ Pay per click<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The advertiser pays only when someone clicks the ad. <strong>CPC = total cost \/ clicks.<\/strong> Search ads in <a href=\"https:\/\/ads.google.com\/\" target=\"_blank\" rel=\"noopener\">Google Ads<\/a> and Microsoft Advertising mostly use this model. PPC is the name of the model; CPC is the price per click.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_CPM_%E2%80%93_Cost_per_mille\"><\/span>4. CPM &#8211; Cost per mille<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8220;Mille&#8221; is Latin for thousand. The advertiser pays for every 1,000 impressions, whether or not anyone clicks. <strong>CPM = (cost \/ impressions) x 1,000.<\/strong> Banner and video campaigns that aim for awareness are usually bought on CPM.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_vCPM_%E2%80%93_Viewable_CPM\"><\/span>5. vCPM &#8211; Viewable CPM<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Like CPM, but only counts impressions that were actually viewable. The common industry standard is at least 50% of the ad visible for one second (two seconds for video). Google Ads offers vCPM bidding for display campaigns.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6_CPV_%E2%80%93_Cost_per_view\"><\/span>6. CPV &#8211; Cost per view<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Used for video ads, for example on YouTube, where you pay when someone watches a set part of the video or interacts with it. Older guides also used PPV (pay per view) for pop-up and interstitial ads.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"7_CPA_%E2%80%93_Cost_per_action_or_acquisition\"><\/span>7. CPA &#8211; Cost per action (or acquisition)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The advertiser pays when a user completes a specific action such as a sign-up, install or purchase. <strong>CPA = cost \/ conversions.<\/strong> Google Ads&#8217; &#8220;Target CPA&#8221; bidding tries to get as many conversions as possible at your chosen CPA.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"8_CPL_%E2%80%93_Cost_per_lead\"><\/span>8. CPL &#8211; Cost per lead<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A type of CPA where the action is a lead: a form fill, quote request or newsletter sign-up. Common in B2B, insurance and education.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"9_CPS_%E2%80%93_Cost_per_sale\"><\/span>9. CPS &#8211; Cost per sale<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The merchant pays a commission only when a sale happens. Most affiliate programs, such as <a href=\"https:\/\/affiliate-program.amazon.com\/\" target=\"_blank\" rel=\"noopener\">Amazon Associates<\/a>, work this way.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Performance_terms\"><\/span>Performance terms<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"10_CTR_%E2%80%93_Click-through_rate\"><\/span>10. CTR &#8211; Click-through rate<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The share of impressions that turned into clicks. <strong>CTR = (clicks \/ impressions) x 100.<\/strong> If an ad is shown 2,000 times and gets 30 clicks, CTR is 1.5%. Publishers can test ad positions to improve it &#8211; see our guide to <a href=\"https:\/\/www.quickonlinetips.com\/archives\/2011\/06\/ab-testing-adsense-for-higher-ctr\/\">A\/B testing AdSense for higher CTR<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"11_CR_or_CVR_%E2%80%93_Conversion_rate\"><\/span>11. CR or CVR &#8211; Conversion rate<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The percentage of visitors or clicks that complete the goal (purchase, sign-up). <strong>CR = (conversions \/ clicks or visits) x 100.<\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"12_RPM_and_eCPM_%E2%80%93_Publisher_earnings_per_1000\"><\/span>12. RPM and eCPM &#8211; Publisher earnings per 1,000<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>For publishers, <strong>RPM<\/strong> (revenue per mille) shows estimated earnings per 1,000 page views or impressions. <a href=\"https:\/\/support.google.com\/adsense\/answer\/190515\" target=\"_blank\" rel=\"noopener\">Google AdSense uses Page RPM<\/a> and Impression RPM in its reports. <strong>eCPM<\/strong> (effective CPM) is the older ad-network term for the same idea. <strong>RPM = (earnings \/ page views) x 1,000.<\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"13_ROAS_%E2%80%93_Return_on_ad_spend\"><\/span>13. ROAS &#8211; Return on ad spend<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Revenue earned for each unit of ad spend. <strong>ROAS = revenue from ads \/ ad cost.<\/strong> A ROAS of 4 (or 400%) means you earned 4 for every 1 spent. It is the main success metric for most e-commerce advertisers.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ad_tech_terms\"><\/span>Ad tech terms<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"14_RTB_%E2%80%93_Real-time_bidding\"><\/span>14. RTB &#8211; Real-time bidding<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>An automated auction that happens in milliseconds as a page loads. Advertisers bid for each individual impression, and the highest bid wins. Most display advertising today is bought this way, which is called <em>programmatic<\/em> advertising.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"15_DSP_and_SSP_%E2%80%93_Demand-side_and_supply-side_platforms\"><\/span>15. DSP and SSP &#8211; Demand-side and supply-side platforms<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A <strong>DSP<\/strong> is the tool advertisers use to buy ads across many sites (for example Google&#8217;s Display &amp; Video 360). An <strong>SSP<\/strong> is the tool publishers use to sell their ad space to many buyers (for example Google Ad Manager). They meet in ad exchanges.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Which_acronyms_matter_most_for_you\"><\/span>Which acronyms matter most for you?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><strong>Bloggers and publishers:<\/strong> PV, RPM, CTR and CPC. RPM tells you what your traffic is really worth. Our <a href=\"https:\/\/www.quickonlinetips.com\/archives\/2005\/05\/google-adsense-heat-map-helps-better-ad-placement\/\">AdSense heat map guide<\/a> explains where ads tend to perform best.<\/li>\n<li><strong>Advertisers:<\/strong> CPC, CPA, CR and ROAS. A low CPC is useless if CR and ROAS are poor.<\/li>\n<li><strong>Affiliate marketers:<\/strong> CPS, CPL, CPA and CR.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"What_is_the_difference_between_CPM_and_RPM\"><\/span>What is the difference between CPM and RPM?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>CPM is what an advertiser pays per 1,000 impressions. RPM is what a publisher earns per 1,000 page views or impressions after the ad network&#8217;s share. RPM is usually lower than the CPM advertisers pay.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_a_good_CTR_for_ads\"><\/span>What is a good CTR for ads?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>It depends on the format and industry. Search ads often get several percent, while display banners commonly get well under 1%. Compare your CTR with your own past results rather than a single benchmark.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_PPC_the_same_as_CPC\"><\/span>Is PPC the same as CPC?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>They are closely related. PPC (pay per click) is the advertising model, and CPC (cost per click) is the actual price paid for each click.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_does_ROAS_mean_in_online_advertising\"><\/span>What does ROAS mean in online advertising?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>ROAS means return on ad spend: the revenue generated divided by the money spent on ads.<\/p>\n<p><em>Originally written by guest author Daniel Scocco, who started building blogs and websites in 2005. Updated for 2026 by QuickOnlineTips. Read our <a href=\"https:\/\/www.quickonlinetips.com\/archives\/guest-blogging\/\">guest blogging<\/a> guidelines.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>How many online advertising acronyms do you know? 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