mirror of
https://github.com/nuxt/nuxt.git
synced 2024-12-05 20:07:16 +00:00
308 lines
8.4 KiB
Markdown
308 lines
8.4 KiB
Markdown
---
|
|
title: SEO and Meta
|
|
description: Improve your Nuxt app's SEO with powerful head config, composables and components.
|
|
navigation.icon: i-ph-file-search
|
|
---
|
|
|
|
## Defaults
|
|
|
|
Out-of-the-box, Nuxt provides sensible defaults, which you can override if needed.
|
|
|
|
```ts twoslash [nuxt.config.ts]
|
|
export default defineNuxtConfig({
|
|
app: {
|
|
head: {
|
|
charset: 'utf-8',
|
|
viewport: 'width=device-width, initial-scale=1',
|
|
}
|
|
}
|
|
})
|
|
```
|
|
|
|
Providing an [`app.head`](/docs/api/nuxt-config#head) property in your [`nuxt.config.ts`](/docs/guide/directory-structure/nuxt-config) allows you to customize the head for your entire app.
|
|
|
|
::important
|
|
This method does not allow you to provide reactive data. We recommend to use `useHead()` in `app.vue`.
|
|
::
|
|
|
|
Shortcuts are available to make configuration easier: `charset` and `viewport`. You can also provide any of the keys listed below in [Types](#types).
|
|
|
|
## `useHead`
|
|
|
|
The [`useHead`](/docs/api/composables/use-head) composable function allows you to manage your head tags programmatically and reactively,
|
|
powered by [Unhead](https://unhead.unjs.io).
|
|
|
|
As with all composables, it can only be used with a components `setup` and lifecycle hooks.
|
|
|
|
```vue twoslash [app.vue]
|
|
<script setup lang="ts">
|
|
useHead({
|
|
title: 'My App',
|
|
meta: [
|
|
{ name: 'description', content: 'My amazing site.' }
|
|
],
|
|
bodyAttrs: {
|
|
class: 'test'
|
|
},
|
|
script: [ { innerHTML: 'console.log(\'Hello world\')' } ]
|
|
})
|
|
</script>
|
|
```
|
|
|
|
We recommend to take a look at the [`useHead`](/docs/api/composables/use-head) and [`useHeadSafe`](/docs/api/composables/use-head-safe) composables.
|
|
|
|
## `useSeoMeta`
|
|
|
|
The [`useSeoMeta`](/docs/api/composables/use-seo-meta) composable lets you define your site's SEO meta tags as a flat object with full TypeScript support.
|
|
|
|
This helps you avoid typos and common mistakes, such as using `name` instead of `property`.
|
|
|
|
```vue twoslash [app.vue]
|
|
<script setup lang="ts">
|
|
useSeoMeta({
|
|
title: 'My Amazing Site',
|
|
ogTitle: 'My Amazing Site',
|
|
description: 'This is my amazing site, let me tell you all about it.',
|
|
ogDescription: 'This is my amazing site, let me tell you all about it.',
|
|
ogImage: 'https://example.com/image.png',
|
|
twitterCard: 'summary_large_image',
|
|
})
|
|
</script>
|
|
```
|
|
|
|
:read-more{to="/docs/api/composables/use-seo-meta"}
|
|
|
|
## Components
|
|
|
|
Nuxt provides `<Title>`, `<Base>`, `<NoScript>`, `<Style>`, `<Meta>`, `<Link>`, `<Body>`, `<Html>` and `<Head>` components so that you can interact directly with your metadata within your component's template.
|
|
|
|
Because these component names match native HTML elements, they must be capitalized in the template.
|
|
|
|
`<Head>` and `<Body>` can accept nested meta tags (for aesthetic reasons) but this does not affect _where_ the nested meta tags are rendered in the final HTML.
|
|
|
|
<!-- @case-police-ignore html -->
|
|
|
|
```vue [app.vue]
|
|
<script setup lang="ts">
|
|
const title = ref('Hello World')
|
|
</script>
|
|
|
|
<template>
|
|
<div>
|
|
<Head>
|
|
<Title>{{ title }}</Title>
|
|
<Meta name="description" :content="title" />
|
|
<Style type="text/css" children="body { background-color: green; }" ></Style>
|
|
</Head>
|
|
|
|
<h1>{{ title }}</h1>
|
|
</div>
|
|
</template>
|
|
```
|
|
|
|
## Types
|
|
|
|
Below are the non-reactive types used for [`useHead`](/docs/api/composables/use-head), [`app.head`](/docs/api/nuxt-config#head) and components.
|
|
|
|
```ts
|
|
interface MetaObject {
|
|
title?: string
|
|
titleTemplate?: string | ((title?: string) => string)
|
|
templateParams?: Record<string, string | Record<string, string>>
|
|
base?: Base
|
|
link?: Link[]
|
|
meta?: Meta[]
|
|
style?: Style[]
|
|
script?: Script[]
|
|
noscript?: Noscript[];
|
|
htmlAttrs?: HtmlAttributes;
|
|
bodyAttrs?: BodyAttributes;
|
|
}
|
|
```
|
|
|
|
See [@unhead/schema](https://github.com/unjs/unhead/blob/main/packages/schema/src/schema.ts) for more detailed types.
|
|
|
|
## Features
|
|
|
|
### Reactivity
|
|
|
|
Reactivity is supported on all properties, by providing a computed value, a getter, or a reactive object.
|
|
|
|
::code-group
|
|
|
|
```vue twoslash [useHead]
|
|
<script setup lang="ts">
|
|
const description = ref('My amazing site.')
|
|
|
|
useHead({
|
|
meta: [
|
|
{ name: 'description', content: description }
|
|
],
|
|
})
|
|
</script>
|
|
```
|
|
|
|
```vue twoslash [useSeoMeta]
|
|
<script setup lang="ts">
|
|
const description = ref('My amazing site.')
|
|
|
|
useSeoMeta({
|
|
description
|
|
})
|
|
</script>
|
|
```
|
|
|
|
```vue [Components]
|
|
<script setup lang="ts">
|
|
const description = ref('My amazing site.')
|
|
</script>
|
|
|
|
<template>
|
|
<div>
|
|
<Meta name="description" :content="description" />
|
|
</div>
|
|
</template>
|
|
```
|
|
|
|
::
|
|
|
|
### Title Template
|
|
|
|
You can use the `titleTemplate` option to provide a dynamic template for customizing the title of your site. For example, you could add the name of your site to the title of every page.
|
|
|
|
The `titleTemplate` can either be a string, where `%s` is replaced with the title, or a function.
|
|
|
|
If you want to use a function (for full control), then this cannot be set in your `nuxt.config`. It is recommended instead to set it within your `app.vue` file where it will apply to all pages on your site:
|
|
|
|
::code-group
|
|
|
|
```vue twoslash [useHead]
|
|
<script setup lang="ts">
|
|
useHead({
|
|
titleTemplate: (titleChunk) => {
|
|
return titleChunk ? `${titleChunk} - Site Title` : 'Site Title';
|
|
}
|
|
})
|
|
</script>
|
|
```
|
|
|
|
::
|
|
|
|
Now, if you set the title to `My Page` with [`useHead`](/docs/api/composables/use-head) on another page of your site, the title would appear as 'My Page - Site Title' in the browser tab. You could also pass `null` to default to 'Site Title'.
|
|
|
|
### Body Tags
|
|
|
|
You can use the `tagPosition: 'bodyClose'` option on applicable tags to append them to the end of the `<body>` tag.
|
|
|
|
For example:
|
|
|
|
```vue twoslash
|
|
<script setup lang="ts">
|
|
useHead({
|
|
script: [
|
|
{
|
|
src: 'https://third-party-script.com',
|
|
// valid options are: 'head' | 'bodyClose' | 'bodyOpen'
|
|
tagPosition: 'bodyClose'
|
|
}
|
|
]
|
|
})
|
|
</script>
|
|
```
|
|
|
|
## Examples
|
|
|
|
### With `definePageMeta`
|
|
|
|
Within your [`pages/` directory](/docs/guide/directory-structure/pages), you can use `definePageMeta` along with [`useHead`](/docs/api/composables/use-head) to set metadata based on the current route.
|
|
|
|
For example, you can first set the current page title (this is extracted at build time via a macro, so it can't be set dynamically):
|
|
|
|
```vue twoslash [pages/some-page.vue]
|
|
<script setup lang="ts">
|
|
definePageMeta({
|
|
title: 'Some Page'
|
|
})
|
|
</script>
|
|
```
|
|
|
|
And then in your layout file, you might use the route's metadata you have previously set:
|
|
|
|
```vue twoslash [layouts/default.vue]
|
|
<script setup lang="ts">
|
|
const route = useRoute()
|
|
|
|
useHead({
|
|
meta: [{ property: 'og:title', content: `App Name - ${route.meta.title}` }]
|
|
})
|
|
</script>
|
|
```
|
|
|
|
:link-example{to="/docs/examples/features/meta-tags"}
|
|
|
|
:read-more{to="/docs/guide/directory-structure/pages/#page-metadata"}
|
|
|
|
### Dynamic Title
|
|
|
|
In the example below, `titleTemplate` is set either as a string with the `%s` placeholder or as a `function`, which allows greater flexibility in setting the page title dynamically for each route of your Nuxt app:
|
|
|
|
```vue twoslash [app.vue]
|
|
<script setup lang="ts">
|
|
useHead({
|
|
// as a string,
|
|
// where `%s` is replaced with the title
|
|
titleTemplate: '%s - Site Title',
|
|
})
|
|
</script>
|
|
```
|
|
|
|
```vue twoslash [app.vue]
|
|
<script setup lang="ts">
|
|
useHead({
|
|
// or as a function
|
|
titleTemplate: (productCategory) => {
|
|
return productCategory
|
|
? `${productCategory} - Site Title`
|
|
: 'Site Title'
|
|
}
|
|
})
|
|
</script>
|
|
```
|
|
|
|
`nuxt.config` is also used as an alternative way of setting the page title. However, `nuxt.config` does not allow the page title to be dynamic. Therefore, it is recommended to use `titleTemplate` in the `app.vue` file to add a dynamic title, which is then applied to all routes of your Nuxt app.
|
|
|
|
### External CSS
|
|
|
|
The example below shows how you might enable Google Fonts using either the `link` property of the [`useHead`](/docs/api/composables/use-head) composable or using the `<Link>` component:
|
|
|
|
::code-group
|
|
|
|
```vue twoslash [useHead]
|
|
<script setup lang="ts">
|
|
useHead({
|
|
link: [
|
|
{
|
|
rel: 'preconnect',
|
|
href: 'https://fonts.googleapis.com'
|
|
},
|
|
{
|
|
rel: 'stylesheet',
|
|
href: 'https://fonts.googleapis.com/css2?family=Roboto&display=swap',
|
|
crossorigin: ''
|
|
}
|
|
]
|
|
})
|
|
</script>
|
|
```
|
|
|
|
```vue [Components]
|
|
<template>
|
|
<div>
|
|
<Link rel="preconnect" href="https://fonts.googleapis.com" />
|
|
<Link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Roboto&display=swap" crossorigin="" />
|
|
</div>
|
|
</template>
|
|
```
|
|
|
|
::
|