diff --git a/src/components/PostElement.astro b/src/components/PostElement.astro
index 85320ee..8b4b7c4 100644
--- a/src/components/PostElement.astro
+++ b/src/components/PostElement.astro
@@ -8,7 +8,9 @@ type Props = {
 
 const { post } = Astro.props;
 const { remarkPluginFrontmatter } = await post.render();
-const formattedDate = dayjs(post.data.pubDate.toString()).format("MMMM DD, YYYY");
+
+const formattedDate = dayjs(post.data.datePublished.toString()).format("MMMM DD, YYYY");
+const datePublished = post.data.datePublished.toISOString();
 ---
 
 <style lang="scss">
@@ -29,7 +31,7 @@ const formattedDate = dayjs(post.data.pubDate.toString()).format("MMMM DD, YYYY"
 		<a href={`/blog/${post.slug}`} lang={post.data.lang}>{post.data.title}</a>
 		<div>
 			<small>
-				<time datetime={post.data.pubDate.toISOString()} lang="en">{formattedDate}</time>
+				<time datetime={datePublished} lang="en">{formattedDate}</time>
 				<span>•</span>
 				<span>{remarkPluginFrontmatter.minutesRead}</span>
 			</small>
diff --git a/src/components/Sections/LatestPosts.astro b/src/components/Sections/LatestPosts.astro
index e91cb4c..e514ff5 100644
--- a/src/components/Sections/LatestPosts.astro
+++ b/src/components/Sections/LatestPosts.astro
@@ -7,7 +7,7 @@ const posts = await getCollection("blog", ({ data }) => {
 	return data.draft !== true;
 });
 
-posts.sort((a, b) => b.data.pubDate.getTime() - a.data.pubDate.getTime());
+posts.sort((a, b) => b.data.datePublished.getTime() - a.data.datePublished.getTime());
 
 const latestPosts = posts.slice(0, 5);
 ---
@@ -32,8 +32,8 @@ const latestPosts = posts.slice(0, 5);
 					</a>
 
 					<small>
-						<time datetime={post.data.pubDate.toISOString()} lang="en">
-							{dayjs(post.data.pubDate.toString()).format("MMMM DD, YYYY")}
+						<time datetime={post.data.datePublished.toISOString()} lang="en">
+							{dayjs(post.data.datePublished.toString()).format("MMMM DD, YYYY")}
 						</time>
 					</small>
 				</li>
diff --git a/src/content/blog/create-lib-file-from-dll.md b/src/content/blog/create-lib-file-from-dll.md
index 78d8e63..472ae23 100644
--- a/src/content/blog/create-lib-file-from-dll.md
+++ b/src/content/blog/create-lib-file-from-dll.md
@@ -1,8 +1,9 @@
 ---
 title: 'Create ".lib" file from ".dll" (archive)'
-author: "Adrian Henke"
-pubDate: "2023-05-04"
 description: "Learn how to generate a *.lib file from a *.dll with this comprehensive guide. Using the Visual Studio Command Prompt and Microsoft's recommended tools, this article walks you through the steps for a seamless process. Perfect for developers working with 3rd party win dll's."
+datePublished: "2023-05-04"
+dateModified: "2023-05-04"
+author: "Adrian Henke"
 lang: "en"
 ---
 
diff --git a/src/content/blog/electron-reload.md b/src/content/blog/electron-reload.md
index 8470d95..804f673 100644
--- a/src/content/blog/electron-reload.md
+++ b/src/content/blog/electron-reload.md
@@ -1,8 +1,9 @@
 ---
 title: "Горячая перезагрузка ElectronJS приложения"
-author: "Valentin Popov"
-pubDate: "2019-08-15"
 description: "Руководство по автоматической перезагрузке приложений на Electron с помощью пакетов electron-reload и electron-webpack. Обход проблем с совместимостью и использование HMR для renderer процесса."
+datePublished: "2019-08-15"
+dateModified: "2019-08-15"
+author: "Valentin Popov"
 lang: "ru"
 ---
 
diff --git a/src/content/blog/example-content.md b/src/content/blog/example-content.md
index 1d54603..f6d61b0 100644
--- a/src/content/blog/example-content.md
+++ b/src/content/blog/example-content.md
@@ -1,8 +1,9 @@
 ---
 title: "Example Content"
-author: "Example User"
-pubDate: "2018-01-01"
 description: "Howdy! This is an example blog post that shows several types of HTML content supported in this theme."
+datePublished: "2018-01-01"
+dateModified: "2018-01-01"
+author: "Example User"
 lang: "en"
 draft: true
 ---
diff --git a/src/content/blog/getting-source-code-of-chromium.md b/src/content/blog/getting-source-code-of-chromium.md
index b08c7a7..a47cbf4 100644
--- a/src/content/blog/getting-source-code-of-chromium.md
+++ b/src/content/blog/getting-source-code-of-chromium.md
@@ -1,8 +1,9 @@
 ---
 title: 'Получение исходного кода "Chromium Projects"'
-author: "Valentin Popov"
-pubDate: "2012-01-30"
 description: "Изучение исходных кодов Chromium: подготовка системы и установка необходимых программных компонентов. Руководство для начинающих разработчиков. Получите инструкции по установке Microsoft Visual Studio, Cygwin, Python и других инструментов. Действительно на январь-февраль 2012 года."
+datePublished: "2012-01-30"
+dateModified: "2012-01-30"
+author: "Valentin Popov"
 lang: "ru"
 ---
 
diff --git a/src/content/blog/installing-moodle-to-fedora.md b/src/content/blog/installing-moodle-to-fedora.md
index c7b4de0..2784641 100644
--- a/src/content/blog/installing-moodle-to-fedora.md
+++ b/src/content/blog/installing-moodle-to-fedora.md
@@ -1,8 +1,9 @@
 ---
 title: "Установка Moodle в Fedora"
-author: "Valentin Popov"
-pubDate: "2018-07-23"
 description: "Решение проблем установки Moodle из-за SELinux: как настроить правила доступа для устранения ошибок в веб-интерфейсе и при работе с cURL. Практические советы и команды."
+datePublished: "2018-07-23"
+dateModified: "2018-07-23"
+author: "Valentin Popov"
 lang: "ru"
 ---
 
diff --git a/src/content/blog/rust-and-tl-mr3020.md b/src/content/blog/rust-and-tl-mr3020.md
index 54d0d69..8479609 100644
--- a/src/content/blog/rust-and-tl-mr3020.md
+++ b/src/content/blog/rust-and-tl-mr3020.md
@@ -1,8 +1,9 @@
 ---
 title: "Компиляция Rust на TL-MR3020"
-author: "Valentin Popov"
-pubDate: "2023-05-01"
 description: 'Как настроить и оптимизировать проект Rust для кросс-компиляции на TP-Link TL-MR3020 с использованием Fedora Linux 38 и OpenWrt 22.03.4. Шаг за шагом от базового "Hello, World!" до асинхронного TCP сервера.'
+datePublished: "2023-05-01"
+dateModified: "2023-05-01"
+author: "Valentin Popov"
 lang: "ru"
 ---
 
diff --git a/src/content/config.ts b/src/content/config.ts
index 3467bda..d7f5f86 100644
--- a/src/content/config.ts
+++ b/src/content/config.ts
@@ -4,11 +4,12 @@ const blog = defineCollection({
 	type: "content",
 	schema: z.object({
 		author: z.string(),
+		dateModified: z.coerce.date(),
+		datePublished: z.coerce.date(),
 		description: z.string(),
 		draft: z.optional(z.boolean()),
-		pubDate: z.coerce.date(),
-		title: z.string(),
 		lang: z.string(),
+		title: z.string(),
 	}),
 });
 
diff --git a/src/pages/404.astro b/src/pages/404.astro
index 4215a60..072c6e7 100644
--- a/src/pages/404.astro
+++ b/src/pages/404.astro
@@ -9,6 +9,7 @@ const lang = "en";
 const schema = websiteSchema({
 	siteUrl: new URL("/", Astro.site).toString(),
 	title,
+	description,
 });
 ---
 
diff --git a/src/pages/blog/[...slug].astro b/src/pages/blog/[...slug].astro
index 3cfdf31..deb98ac 100644
--- a/src/pages/blog/[...slug].astro
+++ b/src/pages/blog/[...slug].astro
@@ -27,15 +27,18 @@ const description = post.data.description;
 const author = post.data.author;
 const lang = post.data.lang;
 
-const formattedData = dayjs(post.data.pubDate.toString()).format("MMMM DD, YYYY");
-const data = post.data.pubDate.toISOString();
+const formattedDate = dayjs(post.data.datePublished.toString()).format("MMMM DD, YYYY");
+const datePublished = post.data.datePublished.toISOString();
+const dateModified = post.data.dateModified?.toISOString();
+const slug = post.slug;
 
 const schema = blogPostSchema({
 	siteUrl: new URL("/", Astro.site).toString(),
 	title,
 	description,
-	slug: post.slug,
-	datePublished: data,
+	slug,
+	datePublished,
+	dateModified,
 	author,
 	lang,
 });
@@ -57,7 +60,7 @@ const schema = blogPostSchema({
 			<p>
 				<small>
 					Posted
-					<time datetime={data} lang="en">{formattedData}</time>
+					<time datetime={datePublished} lang="en">{formattedDate}</time>
 					by&nbsp;{author}
 					<span>&nbsp;•&nbsp;</span>
 					<span>{remarkPluginFrontmatter.minutesRead}</span>
diff --git a/src/pages/blog/index.astro b/src/pages/blog/index.astro
index fd8b376..de5a0a9 100644
--- a/src/pages/blog/index.astro
+++ b/src/pages/blog/index.astro
@@ -10,10 +10,10 @@ const posts = await getCollection("blog", ({ data }) => {
 	return data.draft !== true;
 });
 
-posts.sort((a, b) => b.data.pubDate.getTime() - a.data.pubDate.getTime());
+posts.sort((a, b) => b.data.datePublished.getTime() - a.data.datePublished.getTime());
 
 const postsByYear = posts.reduce<Record<string, CollectionEntry<"blog">[]>>((acc, post) => {
-	const year = post.data.pubDate.getFullYear().toString();
+	const year = post.data.datePublished.getFullYear().toString();
 	if (!acc[year]) {
 		acc[year] = [];
 	}
diff --git a/src/pages/index.astro b/src/pages/index.astro
index fb52e79..eaa5298 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -12,6 +12,7 @@ const lang = "en";
 const schema = websiteSchema({
 	siteUrl: new URL("/", Astro.site).toString(),
 	title,
+	description,
 });
 ---
 
diff --git a/src/utils/schemas/blogPostSchema.ts b/src/utils/schemas/blogPostSchema.ts
index 5393cb1..00395dd 100644
--- a/src/utils/schemas/blogPostSchema.ts
+++ b/src/utils/schemas/blogPostSchema.ts
@@ -1,23 +1,24 @@
 import type { WithContext, BlogPosting } from "schema-dts";
 
 export type BlogPostSchemaParams = {
-	readonly siteUrl: string;
-	readonly title: string;
-	readonly description: string;
-	readonly slug: string;
-	readonly datePublished: string;
 	readonly author: string;
+	readonly dateModified: string;
+	readonly datePublished: string;
+	readonly description: string;
 	readonly lang: string;
+	readonly siteUrl: string;
+	readonly slug: string;
+	readonly title: string;
 };
 
-export default ({ siteUrl, title, description, slug, datePublished, author, lang }: BlogPostSchemaParams): WithContext<BlogPosting> => ({
+export default ({ siteUrl, slug, title, description, datePublished, dateModified, author, lang }: BlogPostSchemaParams): WithContext<BlogPosting> => ({
 	"@context": "https://schema.org",
 	"@type": "BlogPosting",
 	"url": new URL(`/blog/${slug}`, siteUrl).toString(),
 	"headline": title,
 	"description": description,
 	"datePublished": datePublished,
-	"dateModified": datePublished,
+	"dateModified": dateModified,
 	"inLanguage": lang,
 	"author": {
 		"@type": "Person",
diff --git a/src/utils/schemas/blogSchema.ts b/src/utils/schemas/blogSchema.ts
index 54e2fca..66a9bae 100644
--- a/src/utils/schemas/blogSchema.ts
+++ b/src/utils/schemas/blogSchema.ts
@@ -2,9 +2,9 @@ import type { WithContext, CollectionPage } from "schema-dts";
 import type { CollectionEntry } from "astro:content";
 
 export type BlogSchemaParams = {
+	readonly posts: CollectionEntry<"blog">[];
 	readonly siteUrl: string;
 	readonly title: string;
-	readonly posts: CollectionEntry<"blog">[];
 };
 
 export default ({ siteUrl, title, posts }: BlogSchemaParams): WithContext<CollectionPage> => ({
diff --git a/src/utils/schemas/websiteSchema.ts b/src/utils/schemas/websiteSchema.ts
index bebb963..b971e5e 100644
--- a/src/utils/schemas/websiteSchema.ts
+++ b/src/utils/schemas/websiteSchema.ts
@@ -1,13 +1,15 @@
 import type { WithContext, WebSite } from "schema-dts";
 
 export type WebsiteSchemaParams = {
+	readonly description: string;
 	readonly siteUrl: string;
 	readonly title: string;
 };
 
-export default ({ siteUrl, title }: WebsiteSchemaParams): WithContext<WebSite> => ({
+export default ({ siteUrl, title, description }: WebsiteSchemaParams): WithContext<WebSite> => ({
 	"@context": "https://schema.org",
 	"@type": "WebSite",
 	"url": new URL("/", siteUrl).toString(),
 	"name": title,
+	"description": description,
 });