{"id":21361,"date":"2020-01-28T15:55:14","date_gmt":"2020-01-28T15:55:14","guid":{"rendered":"https:\/\/www.arimetrics.com\/glosario-digital\/pixel"},"modified":"2026-06-26T20:55:43","modified_gmt":"2026-06-26T20:55:43","slug":"pixel","status":"publish","type":"encyclopedia","link":"https:\/\/www.arimetrics.com\/en\/digital-glossary\/pixel","title":{"rendered":"Pixel"},"content":{"rendered":"<p><img decoding=\"async\" class=\"boxpad wp-image-14762 size-full alignright\" src=\"https:\/\/www.arimetrics.com\/wp-content\/uploads\/2020\/01\/pixel-1.png\" alt=\"pixel\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.arimetrics.com\/wp-content\/uploads\/2020\/01\/pixel-1.png 300w, https:\/\/www.arimetrics.com\/wp-content\/uploads\/2020\/01\/pixel-1-150x150.png 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong>Definition:<\/strong><\/p>\n<p>A <em><strong>pixel <\/strong><\/em>is a small piece of code <a href=\"https:\/\/www.arimetrics.com\/en\/digital-glossary\/javascript\">(javascript) <\/a>with which information can be collected about visitors to a website, such as what actions they carried out. The idea is that this data that is collected, will then serve to send users ads that are relevant to them or can generate some type of interest.<\/p>\n<p>Pixels are very useful to measure the performance of a campaign, track conversions and \/ or create audiences based on the behavior of each user.<\/p>\n\n<h2>Types of pixels<\/h2>\n<p>Remarketing pixels: the purpose of these pixels is to track visitors to a website, and then send advertising campaigns to users who left the page without taking any action, such as the purchase.<\/p>\n<p>Conversion pixels: Track sales or <a href=\"https:\/\/www.arimetrics.com\/en\/google-ads-agency-spain\">the advertising campaign.<\/a><\/p>\n<h2>What are the most common pixels<\/h2>\n<p>Among the most used Pixels we find:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.facebook.com\/business\/help\/651294705016616\" target=\"_blank\" rel=\"noopener\">Facebook Pixel<\/a><\/li>\n<li><a style=\"font-size: 16px; background-color: #ffffff;\" href=\"https:\/\/support.google.com\/google-ads\/answer\/1722054?hl=es\" target=\"_blank\" rel=\"noopener\">Google Adwords pixel<\/a><\/li>\n<li><a style=\"font-size: 16px; background-color: #ffffff;\" href=\"https:\/\/help.adroll.com\/hc\/es-es\/articles\/211846018-Funcionamiento-del-p%C3%ADxel-de-AdRoll\" target=\"_blank\" rel=\"noopener\">AdRoll Pixel<\/a><\/li>\n<li><a style=\"font-size: 16px; background-color: #ffffff;\" href=\"https:\/\/about.ads.microsoft.com\/en\/tools\/performance\/conversion-tracking\" target=\"_blank\" rel=\"noopener\">Bing pixel<\/a><\/li>\n<li><a style=\"font-size: 16px; background-color: #ffffff;\" href=\"https:\/\/business.twitter.com\/es\/help\/campaign-measurement-and-analytics\/pixel-helper.html\" target=\"_blank\" rel=\"noopener\">X-Twitter pixel<\/a><\/li>\n<\/ul>\n<h2>Frequently asked questions about Pixel<\/h2>\n<div class=\"geo-faq-block\">\n<details class=\"geo-faq-item\">\n<summary>What is Pixel?<\/summary>\n<p>Definition: A pixel is a small piece of code (javascript) with which information can be collected about visitors to a website, such as what actions they carried out. The idea is that this data that is collected, will then serve to send users ads that are relevant to them or can generate some type of interest. In the Arimetrics glossary it is placed in a digital marketing context to clarify its role, uses and practical implications.<\/p>\n<\/details>\n<details class=\"geo-faq-item\">\n<summary>What is Pixel used for in digital marketing?<\/summary>\n<p>It is used to better analyse an action, tool, channel or behaviour related to acquisition, measurement, communication, sales or user experience. Its value depends on applying it to a concrete decision.<\/p>\n<\/details>\n<details class=\"geo-faq-item\">\n<summary>How is Pixel related to a digital strategy?<\/summary>\n<p>It is related to digital strategy when it affects objectives, data, content, technology, campaigns or conversion processes. That is why it should be reviewed together with the business context, not as an isolated term.<\/p>\n<\/details>\n<details class=\"geo-faq-item\">\n<summary>What should be considered when working with Pixel?<\/summary>\n<p>It is advisable to review its definition, context, associated metrics, limitations and possible risks. It is also useful to validate whether the concept has a real impact on performance, user experience or decision-making.<\/p>\n<\/details>\n<\/div>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"DefinedTerm\",\n      \"@id\": \"https:\/\/www.arimetrics.com\/en\/digital-glossary\/pixel#definedterm\",\n      \"name\": \"Pixel\",\n      \"description\": \"Definition of Pixel in the Arimetrics Digital Glossary.\",\n      \"inDefinedTermSet\": {\n        \"@type\": \"DefinedTermSet\",\n        \"name\": \"Arimetrics Digital Glossary\",\n        \"url\": \"https:\/\/www.arimetrics.com\/en\/digital-glossary\"\n      }\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"@id\": \"https:\/\/www.arimetrics.com\/en\/digital-glossary\/pixel#faq\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What is Pixel?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Definition: A pixel is a small piece of code (javascript) with which information can be collected about visitors to a website, such as what actions they carried out. 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