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299 lines
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299 lines
8.0 KiB
Plaintext
---
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title: sitemap.xml
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description: API Reference for the sitemap.xml file.
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related:
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title: Next Steps
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description: Learn how to use the generateSitemaps function.
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links:
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- app/api-reference/functions/generate-sitemaps
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---
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`sitemap.(xml|js|ts)` is a special file that matches the [Sitemaps XML format](https://www.sitemaps.org/protocol.html) to help search engine crawlers index your site more efficiently.
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### Sitemap files (.xml)
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For smaller applications, you can create a `sitemap.xml` file and place it in the root of your `app` directory.
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```xml filename="app/sitemap.xml"
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<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
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<url>
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<loc>https://acme.com</loc>
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<lastmod>2023-04-06T15:02:24.021Z</lastmod>
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<changefreq>yearly</changefreq>
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<priority>1</priority>
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</url>
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<url>
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<loc>https://acme.com/about</loc>
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<lastmod>2023-04-06T15:02:24.021Z</lastmod>
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<changefreq>monthly</changefreq>
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<priority>0.8</priority>
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</url>
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<url>
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<loc>https://acme.com/blog</loc>
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<lastmod>2023-04-06T15:02:24.021Z</lastmod>
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<changefreq>weekly</changefreq>
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<priority>0.5</priority>
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</url>
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</urlset>
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```
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### Generating a sitemap using code (.js, .ts)
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You can use the `sitemap.(js|ts)` file convention to programmatically **generate** a sitemap by exporting a default function that returns an array of URLs. If using TypeScript, a [`Sitemap`](#returns) type is available.
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```ts filename="app/sitemap.ts" switcher
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import { MetadataRoute } from 'next'
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export default function sitemap(): MetadataRoute.Sitemap {
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return [
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{
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url: 'https://acme.com',
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lastModified: new Date(),
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changeFrequency: 'yearly',
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priority: 1,
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},
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{
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url: 'https://acme.com/about',
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lastModified: new Date(),
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changeFrequency: 'monthly',
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priority: 0.8,
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},
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{
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url: 'https://acme.com/blog',
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lastModified: new Date(),
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changeFrequency: 'weekly',
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priority: 0.5,
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},
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]
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}
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```
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```js filename="app/sitemap.js" switcher
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export default function sitemap() {
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return [
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{
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url: 'https://acme.com',
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lastModified: new Date(),
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changeFrequency: 'yearly',
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priority: 1,
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},
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{
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url: 'https://acme.com/about',
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lastModified: new Date(),
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changeFrequency: 'monthly',
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priority: 0.8,
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},
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{
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url: 'https://acme.com/blog',
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lastModified: new Date(),
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changeFrequency: 'weekly',
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priority: 0.5,
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},
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]
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}
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```
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Output:
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```xml filename="acme.com/sitemap.xml"
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<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
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<url>
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<loc>https://acme.com</loc>
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<lastmod>2023-04-06T15:02:24.021Z</lastmod>
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<changefreq>yearly</changefreq>
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<priority>1</priority>
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</url>
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<url>
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<loc>https://acme.com/about</loc>
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<lastmod>2023-04-06T15:02:24.021Z</lastmod>
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<changefreq>monthly</changefreq>
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<priority>0.8</priority>
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</url>
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<url>
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<loc>https://acme.com/blog</loc>
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<lastmod>2023-04-06T15:02:24.021Z</lastmod>
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<changefreq>weekly</changefreq>
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<priority>0.5</priority>
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</url>
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</urlset>
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```
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### Generate a localized Sitemap
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```ts filename="app/sitemap.ts" switcher
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import { MetadataRoute } from 'next'
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export default function sitemap(): MetadataRoute.Sitemap {
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return [
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{
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url: 'https://acme.com',
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lastModified: new Date(),
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alternates: {
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languages: {
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es: 'https://acme.com/es',
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de: 'https://acme.com/de',
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},
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},
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},
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{
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url: 'https://acme.com/about',
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lastModified: new Date(),
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alternates: {
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languages: {
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es: 'https://acme.com/es/about',
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de: 'https://acme.com/de/about',
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},
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},
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},
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{
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url: 'https://acme.com/blog',
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lastModified: new Date(),
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alternates: {
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languages: {
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es: 'https://acme.com/es/blog',
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de: 'https://acme.com/de/blog',
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},
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},
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},
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]
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}
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```
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Output:
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```xml filename="acme.com/sitemap.xml"
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<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">
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<url>
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<loc>https://acme.com</loc>
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<xhtml:link
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rel="alternate"
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hreflang="es"
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href="https://acme.com/es"/>
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<xhtml:link
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rel="alternate"
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hreflang="de"
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href="https://acme.com/de"/>
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<lastmod>2023-04-06T15:02:24.021Z</lastmod>
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</url>
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<url>
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<loc>https://acme.com/about</loc>
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<xhtml:link
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rel="alternate"
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hreflang="es"
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href="https://acme.com/es/about"/>
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<xhtml:link
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rel="alternate"
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hreflang="de"
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href="https://acme.com/de/about"/>
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<lastmod>2023-04-06T15:02:24.021Z</lastmod>
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</url>
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<url>
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<loc>https://acme.com/blog</loc>
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<xhtml:link
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rel="alternate"
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hreflang="es"
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href="https://acme.com/es/blog"/>
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<xhtml:link
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rel="alternate"
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hreflang="de"
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href="https://acme.com/de/blog"/>
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<lastmod>2023-04-06T15:02:24.021Z</lastmod>
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</url>
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</urlset>
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```
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### Generating multiple sitemaps
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While a single sitemap will work for most applications. For large web applications, you may need to split a sitemap into multiple files.
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There are two ways you can create multiple sitemaps:
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- By nesting `sitemap.(xml|js|ts)` inside multiple route segments e.g. `app/sitemap.xml` and `app/products/sitemap.xml`.
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- By using the [`generateSitemaps`](/docs/app/api-reference/functions/generate-sitemaps) function.
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For example, to split a sitemap using `generateSitemaps`, return an array of objects with the sitemap `id`. Then, use the `id` to generate the unique sitemaps.
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```ts filename="app/product/sitemap.ts" switcher
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import { BASE_URL } from '@/app/lib/constants'
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export async function generateSitemaps() {
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// Fetch the total number of products and calculate the number of sitemaps needed
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return [{ id: 0 }, { id: 1 }, { id: 2 }, { id: 3 }]
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}
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export default async function sitemap({
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id,
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}: {
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id: number
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}): Promise<MetadataRoute.Sitemap> {
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// Google's limit is 50,000 URLs per sitemap
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const start = id * 50000
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const end = start + 50000
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const products = await getProducts(
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`SELECT id, date FROM products WHERE id BETWEEN ${start} AND ${end}`
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)
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return products.map((product) => ({
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url: `${BASE_URL}/product/${id}`,
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lastModified: product.date,
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}))
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}
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```
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```js filename="app/product/sitemap.js" switcher
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import { BASE_URL } from '@/app/lib/constants'
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export async function generateSitemaps() {
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// Fetch the total number of products and calculate the number of sitemaps needed
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return [{ id: 0 }, { id: 1 }, { id: 2 }, { id: 3 }]
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}
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export default async function sitemap({ id }) {
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// Google's limit is 50,000 URLs per sitemap
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const start = id * 50000
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const end = start + 50000
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const products = await getProducts(
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`SELECT id, date FROM products WHERE id BETWEEN ${start} AND ${end}`
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)
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return products.map((product) => ({
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url: `${BASE_URL}/product/${id}`,
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lastModified: product.date,
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}))
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}
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```
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In production, your generated sitemaps will be available at `/.../sitemap/[id].xml`. For example, `/product/sitemap/1.xml`.
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In development, you can view the generated sitemap on `/.../sitemap.xml/[id]`. For example, `/product/sitemap.xml/1`. This difference is temporary and will follow the production format.
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See the [`generateSitemaps` API reference](/docs/app/api-reference/functions/generate-sitemaps) for more information.
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## Returns
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The default function exported from `sitemap.(xml|ts|js)` should return an array of objects with the following properties:
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```tsx
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type Sitemap = Array<{
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url: string
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lastModified?: string | Date
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changeFrequency?:
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| 'always'
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| 'hourly'
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| 'daily'
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| 'weekly'
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| 'monthly'
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| 'yearly'
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| 'never'
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priority?: number
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alternates?: {
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languages?: Languages<string>
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}
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}>
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```
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## Version History
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| Version | Changes |
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| --------- | ------------------------------------------------------------ |
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| `v13.4.5` | Add `changeFrequency` and `priority` attributes to sitemaps. |
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| `v13.3.0` | `sitemap` introduced. |
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