diff --git a/CHANGELOG.md b/CHANGELOG.md
index bd36a36c..0ec266ec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/),
 and this project try to adheres to [Semantic Versioning](https://semver.org/).
 Go to the `v1` branch to see the changelog of Lume 1.
 
+## [Unreleased]
+### Added
+- New plugin: `json_ld` for generating JSON-LD tags in the output [#453]
+- New plugin: `purgecss` to remove unused CSS. [#693]
+
 ## [2.4.3] - 2024-12-11
 ### Added
 - New option `finalHandler` to `Server` class.
@@ -538,6 +543,7 @@ Go to the `v1` branch to see the changelog of Lume 1.
 [#376]: https://github.com/lumeland/lume/issues/376
 [#430]: https://github.com/lumeland/lume/issues/430
 [#447]: https://github.com/lumeland/lume/issues/447
+[#453]: https://github.com/lumeland/lume/issues/453
 [#494]: https://github.com/lumeland/lume/issues/494
 [#501]: https://github.com/lumeland/lume/issues/501
 [#517]: https://github.com/lumeland/lume/issues/517
@@ -623,8 +629,10 @@ Go to the `v1` branch to see the changelog of Lume 1.
 [#685]: https://github.com/lumeland/lume/issues/685
 [#686]: https://github.com/lumeland/lume/issues/686
 [#689]: https://github.com/lumeland/lume/issues/689
+[#693]: https://github.com/lumeland/lume/issues/693
 [#704]: https://github.com/lumeland/lume/issues/704
 
+[Unreleased]: https://github.com/lumeland/lume/compare/v2.4.3...HEAD
 [2.4.3]: https://github.com/lumeland/lume/compare/v2.4.2...v2.4.3
 [2.4.2]: https://github.com/lumeland/lume/compare/v2.4.1...v2.4.2
 [2.4.1]: https://github.com/lumeland/lume/compare/v2.4.0...v2.4.1
diff --git a/core/utils/lume_config.ts b/core/utils/lume_config.ts
index 9a96b2a8..c553a935 100644
--- a/core/utils/lume_config.ts
+++ b/core/utils/lume_config.ts
@@ -16,6 +16,7 @@ export const pluginNames = [
   "google_fonts",
   "gzip",
   "inline",
+  "json_ld",
   "jsx",
   "jsx_preact",
   "katex",
@@ -36,6 +37,7 @@ export const pluginNames = [
   "postcss",
   "prism",
   "pug",
+  "purgecss",
   "reading_info",
   "redirects",
   "relations",
diff --git a/deps/purgecss.ts b/deps/purgecss.ts
new file mode 100644
index 00000000..b60cca4d
--- /dev/null
+++ b/deps/purgecss.ts
@@ -0,0 +1,2 @@
+export * from "npm:purgecss@6.0.0";
+export { default as purgeHtml } from "npm:purgecss-from-html@6.0.0/lib/purgecss-from-html.esm.js";
diff --git a/plugins/json_ld.ts b/plugins/json_ld.ts
new file mode 100644
index 00000000..94c7756f
--- /dev/null
+++ b/plugins/json_ld.ts
@@ -0,0 +1,266 @@
+import { isPlainObject, merge } from "../core/utils/object.ts";
+import { getDataValue } from "../core/utils/data_values.ts";
+
+import type Site from "../core/site.ts";
+import type { Page } from "../core/file.ts";
+import { Graph, Thing } from "npm:schema-dts@1.1.2";
+export interface Options {
+  /** The list extensions this plugin applies to */
+  extensions?: string[];
+
+  /** The key name for the transformations definitions */
+  name?: string;
+}
+
+const defaults: Options = {
+  extensions: [".html"],
+  name: "jsonLd",
+};
+
+export type JsonldData = Graph | Thing;
+
+/**
+ * This variable is the result of running
+ * JSON.stringify(Array.from(document.querySelectorAll('th.prop-nam a')).map(a => a.textContent))
+ * on https://schema.org/URL and add '@id'.
+ */
+const urlKeys = [
+  "@id",
+  "acceptsReservations",
+  "acquireLicensePage",
+  "actionPlatform",
+  "actionableFeedbackPolicy",
+  "additionalType",
+  "afterMedia",
+  "applicationCategory",
+  "applicationSubCategory",
+  "archivedAt",
+  "artMedium",
+  "artform",
+  "artworkSurface",
+  "asin",
+  "associatedDisease",
+  "bankAccountType",
+  "beforeMedia",
+  "benefitsSummaryUrl",
+  "bodyType",
+  "category",
+  "childTaxon",
+  "codeRepository",
+  "colleague",
+  "colorSwatch",
+  "competencyRequired",
+  "constraintProperty",
+  "contentUrl",
+  "correction",
+  "correctionsPolicy",
+  "courseMode",
+  "credentialCategory",
+  "discussionUrl",
+  "diseasePreventionInfo",
+  "diseaseSpreadStatistics",
+  "diversityPolicy",
+  "diversityStaffingReport",
+  "documentation",
+  "downloadUrl",
+  "duringMedia",
+  "editEIDR",
+  "educationalCredentialAwarded",
+  "educationalLevel",
+  "educationalProgramMode",
+  "embedUrl",
+  "encodingFormat",
+  "engineType",
+  "ethicsPolicy",
+  "featureList",
+  "feesAndCommissionsSpecification",
+  "fileFormat",
+  "fuelType",
+  "gameLocation",
+  "gamePlatform",
+  "genre",
+  "gettingTestedInfo",
+  "gtin",
+  "hasGS1DigitalLink",
+  "hasMap",
+  "hasMenu",
+  "hasMolecularFunction",
+  "hasRepresentation",
+  "healthPlanMarketingUrl",
+  "identifier",
+  "image",
+  "inCodeSet",
+  "inDefinedTermSet",
+  "installUrl",
+  "isBasedOn",
+  "isBasedOnUrl",
+  "isInvolvedInBiologicalProcess",
+  "isLocatedInSubcellularLocation",
+  "isPartOf",
+  "keywords",
+  "knowsAbout",
+  "labelDetails",
+  "layoutImage",
+  "legislationIdentifier",
+  "license",
+  "loanType",
+  "logo",
+  "mainEntityOfPage",
+  "map",
+  "maps",
+  "masthead",
+  "material",
+  "measurementMethod",
+  "measurementTechnique",
+  "meetsEmissionStandard",
+  "memoryRequirements",
+  "menu",
+  "merchantReturnLink",
+  "missionCoveragePrioritiesPolicy",
+  "namedPosition",
+  "newsUpdatesAndGuidelines",
+  "noBylinesPolicy",
+  "occupationalCredentialAwarded",
+  "originalMediaLink",
+  "ownershipFundingInfo",
+  "parentTaxon",
+  "paymentUrl",
+  "physicalRequirement",
+  "prescribingInfo",
+  "productReturnLink",
+  "propertyID",
+  "publicTransportClosuresInfo",
+  "publishingPrinciples",
+  "quarantineGuidelines",
+  "relatedLink",
+  "releaseNotes",
+  "replyToUrl",
+  "requirements",
+  "roleName",
+  "sameAs",
+  "schemaVersion",
+  "schoolClosuresInfo",
+  "screenshot",
+  "sdLicense",
+  "season",
+  "securityClearanceRequirement",
+  "sensoryRequirement",
+  "serviceUrl",
+  "shippingSettingsLink",
+  "significantLink",
+  "significantLinks",
+  "softwareRequirements",
+  "speakable",
+  "sport",
+  "statType",
+  "storageRequirements",
+  "surface",
+  "target",
+  "targetUrl",
+  "taxonRank",
+  "taxonomicRange",
+  "temporalCoverage",
+  "termsOfService",
+  "thumbnailUrl",
+  "ticketToken",
+  "titleEIDR",
+  "tourBookingPage",
+  "trackingUrl",
+  "travelBans",
+  "unitCode",
+  "unnamedSourcesPolicy",
+  "url",
+  "usageInfo",
+  "usesHealthPlanIdStandard",
+  "vehicleTransmission",
+  "verificationFactCheckingPolicy",
+  "warning",
+  "webFeed",
+];
+
+function isEmpty(v: unknown) {
+  return v === undefined || v === null || v === "";
+}
+
+/**
+ * A plugin to insert structured JSON-LD data for SEO and social media
+ * @see https://lume.land/plugins/json_ld/
+ */
+export function jsonLd(userOptions?: Options) {
+  const options = merge(defaults, userOptions);
+
+  return (site: Site) => {
+    site.mergeKey(options.name, "object");
+    site.process(options.extensions, (pages) => pages.forEach(jsonLdProcessor));
+
+    function jsonLdProcessor(page: Page) {
+      let jsonLdData = page.data[options.name] as JsonldData | undefined;
+
+      if (!jsonLdData || !page.document) {
+        return;
+      }
+      const { document, data } = page;
+
+      // Recursive function to traverse and process JSON-LD data
+      function traverse(key: string | undefined, value: unknown): unknown {
+        if (typeof value === "string") {
+          const dataValue = getDataValue(data, value);
+          // Check if the value is a URL or ID that needs to be processed
+          if (
+            key &&
+            urlKeys.includes(key) &&
+            (dataValue.startsWith("/") ||
+              dataValue.startsWith("./") ||
+              dataValue.startsWith("../"))
+          ) {
+            const pageUrl = site.url(data.url, true);
+            return new URL(dataValue, pageUrl);
+          }
+          return isEmpty(dataValue) ? undefined : dataValue;
+        }
+        if (Array.isArray(value)) {
+          return value.reduce((p, c) => {
+            const processedValue = traverse(key, c);
+            if (!isEmpty(value)) p.push(processedValue);
+            return p;
+          }, []);
+        }
+        if (isPlainObject(value)) {
+          const processedObject: Record<string, unknown> = {};
+          let isEmptyObject = true;
+          for (const [key, v] of Object.entries(value)) {
+            const processedValue = traverse(key, v);
+            // If there's no valid value other than @type, remove this object
+            if (!(key === "@type") && processedValue) isEmptyObject = false;
+            processedObject[key] = processedValue;
+          }
+          return isEmptyObject ? undefined : processedObject;
+        }
+        return value;
+      }
+      jsonLdData = traverse(undefined, jsonLdData) as JsonldData;
+      if (jsonLdData || Object.keys(jsonLdData ?? {}).length !== 0) {
+        const script = document.createElement("script");
+        script.setAttribute("type", "application/ld+json");
+        script.textContent = JSON.stringify(jsonLdData);
+        document.head.appendChild(script);
+        document.head.appendChild(document.createTextNode("\n"));
+      }
+    }
+  };
+}
+
+export default jsonLd;
+
+/** Extends Data interface */
+declare global {
+  namespace Lume {
+    export interface Data {
+      /**
+       * JSON_LD elements
+       * @see https://lume.land/plugins/json_ld/
+       */
+      jsonLd?: JsonldData;
+    }
+  }
+}
diff --git a/plugins/purgecss.ts b/plugins/purgecss.ts
new file mode 100644
index 00000000..20db37bd
--- /dev/null
+++ b/plugins/purgecss.ts
@@ -0,0 +1,84 @@
+import { PurgeCSS, purgeHtml } from "../deps/purgecss.ts";
+import { merge } from "../core/utils/object.ts";
+import { concurrent } from "../core/utils/concurrent.ts";
+import { getExtension, matchExtension } from "../core/utils/path.ts";
+
+import type Site from "../core/site.ts";
+import type { Page } from "../core/file.ts";
+import type { RawContent, UserDefinedOptions } from "../deps/purgecss.ts";
+
+export interface Options {
+  /** The list of extensions this plugin applies to. */
+  extensions?: string[];
+
+  /** The list of page extensions loaded as content. */
+  contentExtensions?: string[];
+
+  /** Options for purgecss */
+  options?: Partial<UserDefinedOptions>;
+}
+
+// Default options
+export const defaults: Options = {
+  extensions: [".css"],
+  contentExtensions: [".html", ".js"],
+  options: {
+    extractors: [],
+  },
+};
+
+/**
+ * A plugin to remove unused CSS
+ */
+export function purgecss(userOptions?: Options) {
+  const options = merge(defaults, userOptions);
+
+  options.options.extractors!.push({
+    extractor: purgeHtml,
+    extensions: ["html"],
+  });
+
+  return (site: Site) => {
+    site.process(options.extensions, async (pages, allPages) => {
+      const content: RawContent[] = [];
+      for (const page of allPages) {
+        if (!matchExtension(options.contentExtensions, page.outputPath)) {
+          continue;
+        }
+
+        const pageContent = page.content;
+        if (typeof pageContent !== "string") {
+          return;
+        }
+
+        content.push({
+          raw: pageContent,
+          extension: getExtension(page.outputPath).slice(1),
+        });
+      }
+
+      await concurrent(pages, async (page: Page) => {
+        const pageContent = page.content;
+        if (typeof pageContent !== "string") {
+          return;
+        }
+
+        const purgeOptions: UserDefinedOptions = {
+          ...options.options,
+          content: (options.options.content || []).concat(content),
+          css: [
+            {
+              raw: pageContent,
+            },
+          ],
+        };
+
+        const result = await new PurgeCSS().purge(purgeOptions);
+
+        page.content = result[0].css;
+      });
+    });
+  };
+}
+
+export default purgecss;
diff --git a/tests/__snapshots__/json_ld.test.ts.snap b/tests/__snapshots__/json_ld.test.ts.snap
new file mode 100644
index 00000000..2ba8d47e
--- /dev/null
+++ b/tests/__snapshots__/json_ld.test.ts.snap
@@ -0,0 +1,226 @@
+export const snapshot = {};
+
+snapshot[`json_ld plugin 1`] = `
+{
+  formats: [
+    {
+      engines: 0,
+      ext: ".page.toml",
+      loader: [AsyncFunction: toml],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".page.ts",
+      loader: [AsyncFunction: module],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".page.js",
+      loader: [AsyncFunction: module],
+      pageType: "page",
+    },
+    {
+      engines: 0,
+      ext: ".page.jsonc",
+      loader: [AsyncFunction: json],
+      pageType: "page",
+    },
+    {
+      engines: 0,
+      ext: ".page.json",
+      loader: [AsyncFunction: json],
+      pageType: "page",
+    },
+    {
+      dataLoader: [AsyncFunction: json],
+      engines: 0,
+      ext: ".json",
+      loader: [AsyncFunction: json],
+    },
+    {
+      dataLoader: [AsyncFunction: json],
+      engines: 0,
+      ext: ".jsonc",
+      loader: [AsyncFunction: json],
+    },
+    {
+      engines: 1,
+      ext: ".md",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".markdown",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      dataLoader: [AsyncFunction: module],
+      engines: 1,
+      ext: ".js",
+      loader: [AsyncFunction: module],
+    },
+    {
+      dataLoader: [AsyncFunction: module],
+      engines: 1,
+      ext: ".ts",
+      loader: [AsyncFunction: module],
+    },
+    {
+      engines: 1,
+      ext: ".vento",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".vto",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      dataLoader: [AsyncFunction: toml],
+      engines: 0,
+      ext: ".toml",
+      loader: [AsyncFunction: toml],
+    },
+    {
+      dataLoader: [AsyncFunction: yaml],
+      engines: 0,
+      ext: ".yaml",
+      loader: [AsyncFunction: yaml],
+      pageType: "page",
+    },
+    {
+      dataLoader: [AsyncFunction: yaml],
+      engines: 0,
+      ext: ".yml",
+      loader: [AsyncFunction: yaml],
+      pageType: "page",
+    },
+  ],
+  src: [
+    "/",
+    "/page-1.md",
+    "/page-2.vto",
+  ],
+}
+`;
+
+snapshot[`json_ld plugin 2`] = `[]`;
+
+snapshot[`json_ld plugin 3`] = `
+[
+  {
+    content: '<!DOCTYPE html>
+<html><head><script type="application/ld+json">{"@context":"https://schema.org","@type":"WebSite","url":"http://localhost/","name":"Title from page data","inLanguage":"gl","publisher":{"@type":"Organization","name":"Title from page data","logo":{"@type":"ImageObject","url":"http://localhost/page-1/use-cover-as-meta-image.png"}},"image":"http://localhost/my-image.png","keywords":["one","two"]}</script>
+</head><body><h1>Welcome to my website</h1>
+<p>This is my first page using <strong>Lume,</strong> a static site generator for Deno.
+<a href="/test/">test link</a>
+I hope you enjoy it.</p>
+</body></html>',
+    data: {
+      basename: "page-1",
+      children: '<h1>Welcome to my website</h1>
+<p>This is my first page using <strong>Lume,</strong> a static site generator for Deno.
+<a href="/test/">test link</a>
+I hope you enjoy it.</p>
+',
+      content: "# Welcome to my website
+
+This is my first page using **Lume,** a static site generator for Deno.
+[test link](/test/)
+I hope you enjoy it.
+",
+      cover: "./use-cover-as-meta-image.png",
+      date: [],
+      header: [
+        "title",
+      ],
+      jsonLd: [
+        "@context",
+        "@type",
+        "url",
+        "name",
+        "inLanguage",
+        "publisher",
+        "image",
+        "keywords",
+        "emptyThing",
+      ],
+      mergedKeys: [
+        "tags",
+        "jsonLd",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      url: "/page-1/",
+    },
+    src: {
+      asset: false,
+      ext: ".md",
+      path: "/page-1",
+      remote: undefined,
+    },
+  },
+  {
+    content: "<!DOCTYPE html>
+<html><head>
+  </head>
+  <body>
+    Pages without jsonld
+  
+
+</body></html>",
+    data: {
+      basename: "page-2",
+      children: "<html>
+  <head>
+  </head>
+  <body>
+    Pages without jsonld
+  </body>
+</html>
+",
+      content: "<html>
+  <head>
+  </head>
+  <body>
+    Pages without jsonld
+  </body>
+</html>
+",
+      date: [],
+      jsonLd: [],
+      mergedKeys: [
+        "tags",
+        "jsonLd",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      url: "/page-2/",
+    },
+    src: {
+      asset: false,
+      ext: ".vto",
+      path: "/page-2",
+      remote: undefined,
+    },
+  },
+]
+`;
diff --git a/tests/__snapshots__/purgecss.test.ts.snap b/tests/__snapshots__/purgecss.test.ts.snap
new file mode 100644
index 00000000..956b1d50
--- /dev/null
+++ b/tests/__snapshots__/purgecss.test.ts.snap
@@ -0,0 +1,854 @@
+export const snapshot = {};
+
+snapshot[`purgecss plugin 1`] = `
+{
+  formats: [
+    {
+      engines: 0,
+      ext: ".page.toml",
+      loader: [AsyncFunction: toml],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".page.ts",
+      loader: [AsyncFunction: module],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".page.js",
+      loader: [AsyncFunction: module],
+      pageType: "page",
+    },
+    {
+      engines: 0,
+      ext: ".page.jsonc",
+      loader: [AsyncFunction: json],
+      pageType: "page",
+    },
+    {
+      engines: 0,
+      ext: ".page.json",
+      loader: [AsyncFunction: json],
+      pageType: "page",
+    },
+    {
+      dataLoader: [AsyncFunction: json],
+      engines: 0,
+      ext: ".json",
+      loader: [AsyncFunction: json],
+    },
+    {
+      dataLoader: [AsyncFunction: json],
+      engines: 0,
+      ext: ".jsonc",
+      loader: [AsyncFunction: json],
+    },
+    {
+      engines: 1,
+      ext: ".md",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".markdown",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      assetLoader: [AsyncFunction: text],
+      dataLoader: [AsyncFunction: module],
+      engines: 1,
+      ext: ".js",
+      loader: [AsyncFunction: module],
+      pageType: "asset",
+    },
+    {
+      dataLoader: [AsyncFunction: module],
+      engines: 1,
+      ext: ".ts",
+      loader: [AsyncFunction: module],
+    },
+    {
+      engines: 1,
+      ext: ".vento",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".vto",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      dataLoader: [AsyncFunction: toml],
+      engines: 0,
+      ext: ".toml",
+      loader: [AsyncFunction: toml],
+    },
+    {
+      dataLoader: [AsyncFunction: yaml],
+      engines: 0,
+      ext: ".yaml",
+      loader: [AsyncFunction: yaml],
+      pageType: "page",
+    },
+    {
+      dataLoader: [AsyncFunction: yaml],
+      engines: 0,
+      ext: ".yml",
+      loader: [AsyncFunction: yaml],
+      pageType: "page",
+    },
+    {
+      assetLoader: [AsyncFunction: text],
+      engines: undefined,
+      ext: ".css",
+      pageType: "asset",
+    },
+  ],
+  src: [
+    "/",
+    "/_includes",
+    "/_includes/footer.vto",
+    "/_includes/layout.vto",
+    "/index.vto",
+    "/pages",
+    "/pages/page1.md",
+    "/pages/page2.page.js",
+    "/script.js",
+    "/static",
+    "/static/static.html",
+    "/styles.css",
+  ],
+}
+`;
+
+snapshot[`purgecss plugin 2`] = `
+[
+  {
+    entry: "/static/static.html",
+    flags: [],
+    outputPath: "/static.html",
+  },
+]
+`;
+
+snapshot[`purgecss plugin 3`] = `
+[
+  {
+    content: '<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>TÍTULO</title>
+</head>
+<body>
+  <h1>Título</h1>
+
+<strong>strong</strong>
+
+<div class="content-vento" tabindex="0">Content</div>
+
+
+  <footer>
+Título
+</footer>
+</body>
+</html>
+',
+    data: {
+      basename: "index",
+      children: '<h1>Título</h1>
+
+<strong>strong</strong>
+
+<div class="content-vento" tabindex="0">Content</div>
+',
+      content: '<h1>{{ title }}</h1>
+
+<strong>strong</strong>
+
+<div class="content-vento" tabindex="0">Content</div>
+',
+      date: [],
+      layout: "layout.vto",
+      mergedKeys: [
+        "tags",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      title: "Título",
+      url: "/",
+    },
+    src: {
+      asset: false,
+      ext: ".vto",
+      path: "/index",
+      remote: undefined,
+    },
+  },
+  {
+    content: "<!DOCTYPE html>
+<p>Content of Page 1</p>
+",
+    data: {
+      basename: "page1",
+      children: "<p>Content of Page 1</p>
+",
+      content: "Content of Page 1
+",
+      date: [],
+      mergedKeys: [
+        "tags",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      title: "Page 1",
+      url: "/pages/page1/",
+    },
+    src: {
+      asset: false,
+      ext: ".md",
+      path: "/pages/page1",
+      remote: undefined,
+    },
+  },
+  {
+    content: '<!DOCTYPE html>
+<div class="content-dynamic">Content of Page 2</div>',
+    data: {
+      basename: "page2",
+      children: '<div class="content-dynamic">Content of Page 2</div>',
+      content: '<div class="content-dynamic">Content of Page 2</div>',
+      date: [],
+      mergedKeys: [
+        "tags",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      title: "Page 2",
+      url: "/page_2/",
+    },
+    src: {
+      asset: false,
+      ext: ".page.js",
+      path: "/pages/page2",
+      remote: undefined,
+    },
+  },
+  {
+    content: "document.querySelector('.dynamic-js')
+  .addEventListener('click', (event) => {
+    event.target.classList.add('dynamic-jssub-open');
+  });
+",
+    data: {
+      basename: "script",
+      content: "document.querySelector('.dynamic-js')
+  .addEventListener('click', (event) => {
+    event.target.classList.add('dynamic-jssub-open');
+  });
+",
+      date: [],
+      mergedKeys: [
+        "tags",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      url: "/script.js",
+    },
+    src: {
+      asset: true,
+      ext: ".js",
+      path: "/script",
+      remote: undefined,
+    },
+  },
+  {
+    content: "::root {
+  --font-family: sans-serif;
+}
+
+body {
+  font-family: sans-serif;
+  color: black;
+}
+
+strong {
+  font-weight: bolder;
+}
+
+ html > * .content-vento {
+  max-width: 800px;
+}
+
+.content-vento:not(.test):focus-visible {
+  outline: 2px solid blue;
+}
+
+.content-dynamic {
+  display: flex;
+}
+
+.content-dynamic:focus-visible {
+  outline: 2px solid lightblue;
+}
+
+.dynamic-js {
+  opacity: 0;
+}
+
+.dynamic-jssub-open {
+  opacity: 1;
+}
+",
+    data: {
+      basename: "styles",
+      content: "::root {
+  --font-family: sans-serif;
+}
+
+body {
+  font-family: sans-serif;
+  color: black;
+}
+
+.unused {
+  margin-top: 30px;
+}
+
+strong {
+  font-weight: bolder;
+}
+
+em {
+  font-style: italic;
+}
+
+a[href] {
+  text-decoration: underline;
+}
+
+html > body .no-such-element .content-vento, html > * .content-vento {
+  max-width: 800px;
+}
+
+.content-vento:not(.test):focus-visible {
+  outline: 2px solid blue;
+}
+
+.content-dynamic {
+  display: flex;
+}
+
+.content-dynamic:focus-visible {
+  outline: 2px solid lightblue;
+}
+
+.content-static {
+  margin-top: 25px;
+}
+
+.content-other {
+  padding: 20px 5px;
+}
+
+.dynamic-js {
+  opacity: 0;
+}
+
+.dynamic-jssub {
+  display: none;
+}
+
+.dynamic-jssub-open {
+  opacity: 1;
+}
+
+#img-option {
+  max-width: 100%;
+}
+",
+      date: [],
+      mergedKeys: [
+        "tags",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      url: "/styles.css",
+    },
+    src: {
+      asset: true,
+      ext: ".css",
+      path: "/styles",
+      remote: undefined,
+    },
+  },
+]
+`;
+
+snapshot[`purgecss plugin with options 1`] = `
+{
+  formats: [
+    {
+      engines: 0,
+      ext: ".page.toml",
+      loader: [AsyncFunction: toml],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".page.ts",
+      loader: [AsyncFunction: module],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".page.js",
+      loader: [AsyncFunction: module],
+      pageType: "page",
+    },
+    {
+      engines: 0,
+      ext: ".page.jsonc",
+      loader: [AsyncFunction: json],
+      pageType: "page",
+    },
+    {
+      engines: 0,
+      ext: ".page.json",
+      loader: [AsyncFunction: json],
+      pageType: "page",
+    },
+    {
+      dataLoader: [AsyncFunction: json],
+      engines: 0,
+      ext: ".json",
+      loader: [AsyncFunction: json],
+    },
+    {
+      dataLoader: [AsyncFunction: json],
+      engines: 0,
+      ext: ".jsonc",
+      loader: [AsyncFunction: json],
+    },
+    {
+      engines: 1,
+      ext: ".md",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".markdown",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      assetLoader: [AsyncFunction: text],
+      dataLoader: [AsyncFunction: module],
+      engines: 1,
+      ext: ".js",
+      loader: [AsyncFunction: module],
+      pageType: "asset",
+    },
+    {
+      dataLoader: [AsyncFunction: module],
+      engines: 1,
+      ext: ".ts",
+      loader: [AsyncFunction: module],
+    },
+    {
+      engines: 1,
+      ext: ".vento",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      engines: 1,
+      ext: ".vto",
+      loader: [AsyncFunction: text],
+      pageType: "page",
+    },
+    {
+      dataLoader: [AsyncFunction: toml],
+      engines: 0,
+      ext: ".toml",
+      loader: [AsyncFunction: toml],
+    },
+    {
+      dataLoader: [AsyncFunction: yaml],
+      engines: 0,
+      ext: ".yaml",
+      loader: [AsyncFunction: yaml],
+      pageType: "page",
+    },
+    {
+      dataLoader: [AsyncFunction: yaml],
+      engines: 0,
+      ext: ".yml",
+      loader: [AsyncFunction: yaml],
+      pageType: "page",
+    },
+    {
+      assetLoader: [AsyncFunction: text],
+      engines: undefined,
+      ext: ".css",
+      pageType: "asset",
+    },
+  ],
+  src: [
+    "/",
+    "/_includes",
+    "/_includes/footer.vto",
+    "/_includes/layout.vto",
+    "/index.vto",
+    "/pages",
+    "/pages/page1.md",
+    "/pages/page2.page.js",
+    "/script.js",
+    "/static",
+    "/static/static.html",
+    "/styles.css",
+  ],
+}
+`;
+
+snapshot[`purgecss plugin with options 2`] = `
+[
+  {
+    entry: "/static/static.html",
+    flags: [],
+    outputPath: "/static.html",
+  },
+]
+`;
+
+snapshot[`purgecss plugin with options 3`] = `
+[
+  {
+    content: '<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>TÍTULO</title>
+</head>
+<body>
+  <h1>Título</h1>
+
+<strong>strong</strong>
+
+<div class="content-vento" tabindex="0">Content</div>
+
+
+  <footer>
+Título
+</footer>
+</body>
+</html>
+',
+    data: {
+      basename: "index",
+      children: '<h1>Título</h1>
+
+<strong>strong</strong>
+
+<div class="content-vento" tabindex="0">Content</div>
+',
+      content: '<h1>{{ title }}</h1>
+
+<strong>strong</strong>
+
+<div class="content-vento" tabindex="0">Content</div>
+',
+      date: [],
+      layout: "layout.vto",
+      mergedKeys: [
+        "tags",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      title: "Título",
+      url: "/",
+    },
+    src: {
+      asset: false,
+      ext: ".vto",
+      path: "/index",
+      remote: undefined,
+    },
+  },
+  {
+    content: "<!DOCTYPE html>
+<p>Content of Page 1</p>
+",
+    data: {
+      basename: "page1",
+      children: "<p>Content of Page 1</p>
+",
+      content: "Content of Page 1
+",
+      date: [],
+      mergedKeys: [
+        "tags",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      title: "Page 1",
+      url: "/pages/page1/",
+    },
+    src: {
+      asset: false,
+      ext: ".md",
+      path: "/pages/page1",
+      remote: undefined,
+    },
+  },
+  {
+    content: '<!DOCTYPE html>
+<div class="content-dynamic">Content of Page 2</div>',
+    data: {
+      basename: "page2",
+      children: '<div class="content-dynamic">Content of Page 2</div>',
+      content: '<div class="content-dynamic">Content of Page 2</div>',
+      date: [],
+      mergedKeys: [
+        "tags",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      title: "Page 2",
+      url: "/page_2/",
+    },
+    src: {
+      asset: false,
+      ext: ".page.js",
+      path: "/pages/page2",
+      remote: undefined,
+    },
+  },
+  {
+    content: "document.querySelector('.dynamic-js')
+  .addEventListener('click', (event) => {
+    event.target.classList.add('dynamic-jssub-open');
+  });
+",
+    data: {
+      basename: "script",
+      content: "document.querySelector('.dynamic-js')
+  .addEventListener('click', (event) => {
+    event.target.classList.add('dynamic-jssub-open');
+  });
+",
+      date: [],
+      mergedKeys: [
+        "tags",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      url: "/script.js",
+    },
+    src: {
+      asset: true,
+      ext: ".js",
+      path: "/script",
+      remote: undefined,
+    },
+  },
+  {
+    content: "::root {
+}
+
+body {
+  font-family: sans-serif;
+  color: black;
+}
+
+.unused {
+  margin-top: 30px;
+}
+
+ html > * .content-vento {
+  max-width: 800px;
+}
+
+.content-vento:not(.test):focus-visible {
+  outline: 2px solid blue;
+}
+
+.content-dynamic {
+  display: flex;
+}
+
+.content-dynamic:focus-visible {
+  outline: 2px solid lightblue;
+}
+
+.content-static {
+  margin-top: 25px;
+}
+
+.dynamic-js {
+  opacity: 0;
+}
+
+.dynamic-jssub-open {
+  opacity: 1;
+}
+
+#img-option {
+  max-width: 100%;
+}
+",
+    data: {
+      basename: "styles",
+      content: "::root {
+  --font-family: sans-serif;
+}
+
+body {
+  font-family: sans-serif;
+  color: black;
+}
+
+.unused {
+  margin-top: 30px;
+}
+
+strong {
+  font-weight: bolder;
+}
+
+em {
+  font-style: italic;
+}
+
+a[href] {
+  text-decoration: underline;
+}
+
+html > body .no-such-element .content-vento, html > * .content-vento {
+  max-width: 800px;
+}
+
+.content-vento:not(.test):focus-visible {
+  outline: 2px solid blue;
+}
+
+.content-dynamic {
+  display: flex;
+}
+
+.content-dynamic:focus-visible {
+  outline: 2px solid lightblue;
+}
+
+.content-static {
+  margin-top: 25px;
+}
+
+.content-other {
+  padding: 20px 5px;
+}
+
+.dynamic-js {
+  opacity: 0;
+}
+
+.dynamic-jssub {
+  display: none;
+}
+
+.dynamic-jssub-open {
+  opacity: 1;
+}
+
+#img-option {
+  max-width: 100%;
+}
+",
+      date: [],
+      mergedKeys: [
+        "tags",
+      ],
+      page: [
+        "src",
+        "data",
+        "asset",
+      ],
+      paginate: "paginate",
+      search: [],
+      tags: "Array(0)",
+      url: "/styles.css",
+    },
+    src: {
+      asset: true,
+      ext: ".css",
+      path: "/styles",
+      remote: undefined,
+    },
+  },
+]
+`;
diff --git a/tests/assets/json_ld/page-1.md b/tests/assets/json_ld/page-1.md
new file mode 100644
index 00000000..b6ae7317
--- /dev/null
+++ b/tests/assets/json_ld/page-1.md
@@ -0,0 +1,29 @@
+---
+header:
+  title: Title from page data
+cover: ./use-cover-as-meta-image.png
+jsonLd:
+  "@context": "https://schema.org"
+  "@type": "WebSite"
+  url: "/"
+  name: "=header.title"
+  inLanguage: "gl"
+  publisher:
+    "@type": "Organization"
+    name: "=header.title"
+    logo:
+      "@type": "ImageObject"
+      url: "=cover"
+  image: "/my-image.png"
+  keywords:
+    - "one"
+    - "two"
+  emptyThing:
+    "@type": "EmptyThing"
+---
+
+# Welcome to my website
+
+This is my first page using **Lume,** a static site generator for Deno.
+[test link](/test/)
+I hope you enjoy it.
diff --git a/tests/assets/json_ld/page-2.vto b/tests/assets/json_ld/page-2.vto
new file mode 100644
index 00000000..aa5b4b42
--- /dev/null
+++ b/tests/assets/json_ld/page-2.vto
@@ -0,0 +1,9 @@
+---
+---
+<html>
+  <head>
+  </head>
+  <body>
+    Pages without jsonld
+  </body>
+</html>
diff --git a/tests/assets/purgecss/_includes/footer.vto b/tests/assets/purgecss/_includes/footer.vto
new file mode 100644
index 00000000..ebf60231
--- /dev/null
+++ b/tests/assets/purgecss/_includes/footer.vto
@@ -0,0 +1,3 @@
+<footer>
+{{ title }}
+</footer>
\ No newline at end of file
diff --git a/tests/assets/purgecss/_includes/layout.vto b/tests/assets/purgecss/_includes/layout.vto
new file mode 100644
index 00000000..c38f0226
--- /dev/null
+++ b/tests/assets/purgecss/_includes/layout.vto
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>{{ title |> toUpperCase }}</title>
+</head>
+<body>
+  {{ content }}
+
+  {{ include "footer.vto" }}
+</body>
+</html>
diff --git a/tests/assets/purgecss/index.vto b/tests/assets/purgecss/index.vto
new file mode 100644
index 00000000..03490537
--- /dev/null
+++ b/tests/assets/purgecss/index.vto
@@ -0,0 +1,10 @@
+---
+title: Título
+layout: layout.vto
+---
+
+<h1>{{ title }}</h1>
+
+<strong>strong</strong>
+
+<div class="content-vento" tabindex="0">Content</div>
diff --git a/tests/assets/purgecss/pages/page1.md b/tests/assets/purgecss/pages/page1.md
new file mode 100644
index 00000000..fb98681f
--- /dev/null
+++ b/tests/assets/purgecss/pages/page1.md
@@ -0,0 +1,5 @@
+---
+title: Page 1
+---
+
+Content of Page 1
diff --git a/tests/assets/purgecss/pages/page2.page.js b/tests/assets/purgecss/pages/page2.page.js
new file mode 100644
index 00000000..72e11f13
--- /dev/null
+++ b/tests/assets/purgecss/pages/page2.page.js
@@ -0,0 +1,5 @@
+export const title = "Page 2";
+
+export const url = "/page_2/";
+
+export default `<div class="content-dynamic">Content of ${title}</div>`;
diff --git a/tests/assets/purgecss/script.js b/tests/assets/purgecss/script.js
new file mode 100644
index 00000000..c7ac76c2
--- /dev/null
+++ b/tests/assets/purgecss/script.js
@@ -0,0 +1,4 @@
+document.querySelector('.dynamic-js')
+  .addEventListener('click', (event) => {
+    event.target.classList.add('dynamic-jssub-open');
+  });
diff --git a/tests/assets/purgecss/static/static.html b/tests/assets/purgecss/static/static.html
new file mode 100644
index 00000000..7e6c934c
--- /dev/null
+++ b/tests/assets/purgecss/static/static.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>{{ title |> toUpperCase }}</title>
+</head>
+<body>
+  <div class="content-static">Content</div>
+</body>
+</html>
diff --git a/tests/assets/purgecss/styles.css b/tests/assets/purgecss/styles.css
new file mode 100644
index 00000000..2ea0f72c
--- /dev/null
+++ b/tests/assets/purgecss/styles.css
@@ -0,0 +1,64 @@
+::root {
+  --font-family: sans-serif;
+}
+
+body {
+  font-family: sans-serif;
+  color: black;
+}
+
+.unused {
+  margin-top: 30px;
+}
+
+strong {
+  font-weight: bolder;
+}
+
+em {
+  font-style: italic;
+}
+
+a[href] {
+  text-decoration: underline;
+}
+
+html > body .no-such-element .content-vento, html > * .content-vento {
+  max-width: 800px;
+}
+
+.content-vento:not(.test):focus-visible {
+  outline: 2px solid blue;
+}
+
+.content-dynamic {
+  display: flex;
+}
+
+.content-dynamic:focus-visible {
+  outline: 2px solid lightblue;
+}
+
+.content-static {
+  margin-top: 25px;
+}
+
+.content-other {
+  padding: 20px 5px;
+}
+
+.dynamic-js {
+  opacity: 0;
+}
+
+.dynamic-jssub {
+  display: none;
+}
+
+.dynamic-jssub-open {
+  opacity: 1;
+}
+
+#img-option {
+  max-width: 100%;
+}
diff --git a/tests/json_ld.test.ts b/tests/json_ld.test.ts
new file mode 100644
index 00000000..78a54854
--- /dev/null
+++ b/tests/json_ld.test.ts
@@ -0,0 +1,13 @@
+import { assertSiteSnapshot, build, getSite } from "./utils.ts";
+import jsonLd from "../plugins/json_ld.ts";
+
+Deno.test("json_ld plugin", async (t) => {
+  const site = getSite({
+    src: "json_ld",
+  });
+
+  site.use(jsonLd());
+
+  await build(site);
+  await assertSiteSnapshot(t, site);
+});
diff --git a/tests/plugins.test.ts b/tests/plugins.test.ts
index 8a792063..bd5e1dca 100644
--- a/tests/plugins.test.ts
+++ b/tests/plugins.test.ts
@@ -23,6 +23,7 @@ Deno.test("Plugins list in init", () => {
     "google_fonts",
     "gzip",
     "inline",
+    "json_ld",
     "jsx",
     "jsx_preact",
     "katex",
@@ -43,6 +44,7 @@ Deno.test("Plugins list in init", () => {
     "postcss",
     "prism",
     "pug",
+    "purgecss",
     "reading_info",
     "redirects",
     "relations",
diff --git a/tests/purgecss.test.ts b/tests/purgecss.test.ts
new file mode 100644
index 00000000..25e57df4
--- /dev/null
+++ b/tests/purgecss.test.ts
@@ -0,0 +1,44 @@
+import { assertSiteSnapshot, build, getPath, getSite } from "./utils.ts";
+import { normalizePath } from "../core/utils/path.ts";
+import purgecss from "../plugins/purgecss.ts";
+
+Deno.test("purgecss plugin", async (t) => {
+  const site = getSite({
+    src: "purgecss",
+  });
+
+  site.loadAssets([".css", ".js"]);
+  site.copy("static", ".");
+
+  site.use(purgecss());
+
+  await build(site);
+  await assertSiteSnapshot(t, site);
+});
+
+Deno.test("purgecss plugin with options", async (t) => {
+  const site = getSite({
+    src: "purgecss",
+  });
+
+  site.loadAssets([".css", ".js"]);
+  site.copy("static", ".");
+
+  site.use(purgecss({
+    options: {
+      content: [
+        normalizePath(getPath("./assets/purgecss/static/**/*.html")),
+        {
+          raw: '<img id="img-option" src="">',
+          extension: "html",
+        },
+      ],
+      safelist: ["unused"],
+      blocklist: ["strong"],
+      variables: true,
+    },
+  }));
+
+  await build(site);
+  await assertSiteSnapshot(t, site);
+});