{"id":653,"date":"2026-10-26T03:49:41","date_gmt":"2026-10-26T03:49:41","guid":{"rendered":"https:\/\/sitefitters.com\/learn\/glossary\/plugin\/"},"modified":"2026-10-26T03:49:41","modified_gmt":"2026-10-26T03:49:41","slug":"plugin","status":"publish","type":"page","link":"https:\/\/sitefitters.com\/fr\/learn\/glossary\/plugin\/","title":{"rendered":"Plugin"},"content":{"rendered":"<section class=\"sfl-hero sfl-hero-s\"><div class=\"sfl-w\"><div class=\"sfl-bc\"><a href=\"\/fr\/learn\/\">Learn<\/a> \/ <a href=\"\/fr\/learn\/glossary\/\">Glossary<\/a> \/ <a href=\"\/fr\/learn\/glossary\/#topic-cms\" style=\"color:#60A5FA\">WordPress &amp; Content<\/a><\/div><h1>Plugin <em>Explained.<\/em><\/h1><div class=\"sfl-def\"><small>In one sentence<\/small>A plugin is an add-on you install in WordPress (or similar software) to add a feature, such as forms, SEO tools, booking calendars, backups or an online store.<\/div><\/div><\/section><div class=\"sfl-w sfl-art\"><article class=\"sfl-prose\"><h2>What It Is<\/h2><p>A plugin is a piece of software that adds a specific feature to your website without changing the core system. In WordPress, you can search a large library of plugins from your dashboard, install one in a few clicks and turn it on. It works like apps on a phone: the phone handles the basics, and each app adds something extra, such as a calendar, a contact form or a photo gallery.<\/p><h2>Why It Matters for Your Business<\/h2><p>Plugins let small businesses add powerful tools affordably. A tennis coach might use one plugin for lesson bookings, another for SEO settings and another for backups. But each plugin is code written by a different developer, and each must be updated. Too many, or poorly maintained ones, can slow your site, conflict with each other and create security holes.<\/p><h2>Good to Know<\/h2><p>Before installing a plugin, check when it was last updated, how many sites use it and whether its reviews mention support. Prefer one solid plugin over three that overlap. Deactivate and delete plugins you are not using, since inactive plugin files can still be a risk. And test major plugin updates on a staging site if your business depends on that feature.<\/p><div class=\"sfl-box\"><h4>Related terms<\/h4><div class=\"sfl-rel\"><a href=\"\/fr\/learn\/glossary\/wordpress\/\">WordPress<\/a><a href=\"\/fr\/learn\/glossary\/software-updates\/\">Software updates<\/a><a href=\"\/fr\/learn\/glossary\/widget\/\">Widget<\/a><a href=\"\/fr\/learn\/glossary\/page-builder\/\">Page builder<\/a><a href=\"\/fr\/learn\/glossary\/staging-site\/\">Staging site<\/a><\/div><\/div><nav class=\"sfl-pn\"><a href=\"\/fr\/learn\/glossary\/php\/\"><small>\u2190 Previous<\/small><b>PHP<\/b><\/a><a href=\"\/fr\/learn\/glossary\/pop3\/\" class=\"r\"><small>Next \u2192<\/small><b>POP3<\/b><\/a><\/nav><\/article><aside class=\"sfl-aside\"><div class=\"sfl-box sfl-box-o\"><h4>Want hosting handled?<\/h4><p>Fast, secure WordPress hosting with updates, backups and monitoring taken care of.<\/p><a class=\"sfl-btn sfl-btn-w\" href=\"\/fr\/wordpress-hosting\/\">See WordPress hosting<\/a><\/div><div class=\"sfl-box\"><h4>Step-by-step guides<\/h4><div class=\"sfl-rel sfl-col\"><a href=\"\/fr\/learn\/guides\/add-google-analytics-to-your-website\/\">How to Add Google Analytics 4 to Your Website<\/a><a href=\"\/fr\/learn\/guides\/back-up-and-restore-wordpress\/\">How to Back Up and Restore a WordPress Website<\/a><a href=\"\/fr\/learn\/guides\/update-wordpress-safely\/\">How to Update WordPress, Themes and Plugins Safely<\/a><\/div><\/div><div class=\"sfl-box\"><h4>More in WordPress &amp; Content<\/h4><div class=\"sfl-chips\"><a href=\"\/fr\/learn\/glossary\/content-management-system\/\">Content management system<\/a><a href=\"\/fr\/learn\/glossary\/wordpress\/\">WordPress<\/a><a href=\"\/fr\/learn\/glossary\/page-builder\/\">Page builder<\/a><a href=\"\/fr\/learn\/glossary\/block-editor\/\">Block editor<\/a><a href=\"\/fr\/learn\/glossary\/widget\/\">Widget<\/a><a href=\"\/fr\/learn\/glossary\/shortcode\/\">Shortcode<\/a><a href=\"\/fr\/learn\/glossary\/permalink\/\">Permalink<\/a><a href=\"\/fr\/learn\/glossary\/post-vs-page\/\">Post vs page<\/a><\/div><\/div><\/aside><\/div><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"DefinedTerm\",\"name\":\"Plugin\",\"description\":\"A plugin is an add-on you install in WordPress (or similar software) to add a feature, such as forms, SEO tools, booking calendars, backups or an online store.\",\"url\":\"https:\/\/sitefitters.com\/learn\/glossary\/plugin\/\",\"inDefinedTermSet\":{\"@type\":\"DefinedTermSet\",\"name\":\"Business Website 101 Glossary\",\"url\":\"https:\/\/sitefitters.com\/learn\/glossary\/\"}}<\/script>","protected":false},"excerpt":{"rendered":"<p>Learn \/ Glossary \/ WordPress &amp; Content Plugin Explained. In one sentenceA plugin is an add-on you install in WordPress (or similar software) to add a feature, such as forms, SEO tools, booking calendars, backups or an online store. What It Is A plugin is a piece of software that adds a specific feature to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":532,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"sitefitters-canvas.php","meta":{"_acf_changed":false,"_yoast_wpseo_title":"Plugin: What It Means | Website Glossary","_yoast_wpseo_metadesc":"A plugin is an add-on you install in WordPress (or similar software) to add a feature, such as forms, SEO tools, booking calendars, backups or an online store.","sfb_learn":"1","footnotes":""},"class_list":["post-653","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Plugin: What It Means | Website Glossary<\/title>\n<meta name=\"description\" content=\"A plugin is an add-on you install in WordPress (or similar software) to add a feature, such as forms, SEO tools, booking calendars, backups or an online store.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sitefitters.com\/fr\/learn\/glossary\/plugin\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Plugin\" \/>\n<meta property=\"og:description\" content=\"A plugin is an add-on you install in WordPress (or similar software) to add a feature, such as forms, SEO tools, booking calendars, backups or an online store.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sitefitters.com\/fr\/learn\/glossary\/plugin\/\" \/>\n<meta property=\"og:site_name\" content=\"Sitefitters\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/sitefitters.com\\\/learn\\\/glossary\\\/plugin\\\/\",\"url\":\"https:\\\/\\\/sitefitters.com\\\/learn\\\/glossary\\\/plugin\\\/\",\"name\":\"Plugin: What It Means | Website Glossary\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/sitefitters.com\\\/#website\"},\"datePublished\":\"2026-10-26T03:49:41+00:00\",\"description\":\"A plugin is an add-on you install in WordPress (or similar software) to add a feature, such as forms, SEO tools, booking calendars, backups or an online store.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/sitefitters.com\\\/learn\\\/glossary\\\/plugin\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/sitefitters.com\\\/learn\\\/glossary\\\/plugin\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/sitefitters.com\\\/learn\\\/glossary\\\/plugin\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/sitefitters.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Business Website 101\",\"item\":\"https:\\\/\\\/sitefitters.com\\\/learn\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Website Glossary A\u2013Z\",\"item\":\"https:\\\/\\\/sitefitters.com\\\/learn\\\/glossary\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Plugin\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/sitefitters.com\\\/#website\",\"url\":\"https:\\\/\\\/sitefitters.com\\\/\",\"name\":\"Sitefitters\",\"description\":\"Custom Websites, Apps &amp; WHMCS experts\",\"publisher\":{\"@id\":\"https:\\\/\\\/sitefitters.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/sitefitters.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/sitefitters.com\\\/#organization\",\"name\":\"Sitefitters\",\"url\":\"https:\\\/\\\/sitefitters.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/sitefitters.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/sitefitters.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/sitefitters-logo-elephant-dot.png\",\"contentUrl\":\"https:\\\/\\\/sitefitters.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/sitefitters-logo-elephant-dot.png\",\"width\":717,\"height\":140,\"caption\":\"Sitefitters\"},\"image\":{\"@id\":\"https:\\\/\\\/sitefitters.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Plugin: What It Means | Website Glossary","description":"A plugin is an add-on you install in WordPress (or similar software) to add a feature, such as forms, SEO tools, booking calendars, backups or an online store.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sitefitters.com\/fr\/learn\/glossary\/plugin\/","og_locale":"fr_FR","og_type":"article","og_title":"Plugin","og_description":"A plugin is an add-on you install in WordPress (or similar software) to add a feature, such as forms, SEO tools, booking calendars, backups or an online store.","og_url":"https:\/\/sitefitters.com\/fr\/learn\/glossary\/plugin\/","og_site_name":"Sitefitters","twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/sitefitters.com\/learn\/glossary\/plugin\/","url":"https:\/\/sitefitters.com\/learn\/glossary\/plugin\/","name":"Plugin: What It Means | Website Glossary","isPartOf":{"@id":"https:\/\/sitefitters.com\/#website"},"datePublished":"2026-10-26T03:49:41+00:00","description":"A plugin is an add-on you install in WordPress (or similar software) to add a feature, such as forms, SEO tools, booking calendars, backups or an online store.","breadcrumb":{"@id":"https:\/\/sitefitters.com\/learn\/glossary\/plugin\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/sitefitters.com\/learn\/glossary\/plugin\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/sitefitters.com\/learn\/glossary\/plugin\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/sitefitters.com\/"},{"@type":"ListItem","position":2,"name":"Business Website 101","item":"https:\/\/sitefitters.com\/learn\/"},{"@type":"ListItem","position":3,"name":"Website Glossary A\u2013Z","item":"https:\/\/sitefitters.com\/learn\/glossary\/"},{"@type":"ListItem","position":4,"name":"Plugin"}]},{"@type":"WebSite","@id":"https:\/\/sitefitters.com\/#website","url":"https:\/\/sitefitters.com\/","name":"Sitefitters","description":"Custom Websites, Apps &amp; WHMCS experts","publisher":{"@id":"https:\/\/sitefitters.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/sitefitters.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/sitefitters.com\/#organization","name":"Sitefitters","url":"https:\/\/sitefitters.com\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/sitefitters.com\/#\/schema\/logo\/image\/","url":"https:\/\/sitefitters.com\/wp-content\/uploads\/2026\/10\/sitefitters-logo-elephant-dot.png","contentUrl":"https:\/\/sitefitters.com\/wp-content\/uploads\/2026\/10\/sitefitters-logo-elephant-dot.png","width":717,"height":140,"caption":"Sitefitters"},"image":{"@id":"https:\/\/sitefitters.com\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/sitefitters.com\/fr\/wp-json\/wp\/v2\/pages\/653","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sitefitters.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sitefitters.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sitefitters.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sitefitters.com\/fr\/wp-json\/wp\/v2\/comments?post=653"}],"version-history":[{"count":0,"href":"https:\/\/sitefitters.com\/fr\/wp-json\/wp\/v2\/pages\/653\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/sitefitters.com\/fr\/wp-json\/wp\/v2\/pages\/532"}],"wp:attachment":[{"href":"https:\/\/sitefitters.com\/fr\/wp-json\/wp\/v2\/media?parent=653"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}