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astro-robots-txt

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astro-robots-txt

Generate a robots.txt for Astro

0.1.11
unpublished
Source
npm

Version published: 3 years ago

Weekly downloads: 13K; increased by19.74%

Maintainers: 1

Weekly downloads

Created: 3 years ago

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astro-robots-txt

This Astro integration generates a robots.txt for your Astro project during build.

The robots.txt file informs search engines which pages on your website should be crawled. See Google's own advice on robots.txt to learn more.

Why astro-robots-txt?

For Astro project you usually create the robots.txt in a text editor and place it to the public/ directory. In that case you must manually synchronize site option in astro.config.* with Sitemap: record in robots.txt.
It brakes DRY principle.

Sometimes, especially during development, it's needed to prevent your site from being indexed. To achieve this you need place meta tag <meta name="robots" content="noindex"> in the <head> section of pages or add X-Robots-Tag: noindex in HTTP header response, then add lines User-agent: * and Disallow: \ to robots.txt.
Again you do it manually in two separate places.

astro-robots-txt could help in both two cases on the robots.txt side. See details in the demo repo.

Installation

If you run into any hiccups, feel free to log an issue on my GitHub.

Install dependencies

First, install the astro-robots-txt integration like so:

#npm
npm install --save-dev astro-robots-txt

#yarn
yarn add -D astro-robots-txt

#pnpm
pnpm add -D astro-robots-txt

Getting started

The astro-robots-txt integration requires a deployment / site URL for generation. Add your site's URL under your astro.config.* using the site property.

:exclamation: Provide the experimental property to your astro.config.*, because only official @astrojs/* integrations are currently supported by Astro. Set the experimental.integrations value to true.

Then, apply this integration to your astro.config.* file using the integrations property.

astro.config.mjs

// astro.config.mjs
import { defineConfig } from 'astro/config';
import robotsTxt from 'astro-robots-txt';

export default defineConfig({
  // ...
  site: 'https://example.com',
  // Important!
  // Only official '@astrojs/*' integrations are currently supported by Astro. 
  // Add 'experimental.integrations: true' to make 'astro-robots-txt' working
  // with 'astro build' command.
  experimental: {
    integrations: true,
  },  
  integrations: [robotsTxt()],
});

Now, build your site for production via the astro build command. You should find your robots.txt under dist/robots.txt!

The robots.txt's content will be

User-agent: *
Allow: /
Sitemap: https://example.com/sitemap.xml

You can also check our Astro Integration Documentation for more on integrations.

Configuration

Options

Name	Type	Default	Description
`host`	`String`	``	Host of your site
`sitemap`	`Boolean / String` / `String[]`	`true`	Resulting output will be `Sitemap: your-site-url/sitemap.xml`
			If `sitemap: false` - no `Sitemap` line in the output
			You could use for `sitemap` valid url string or array of url strings
`policy`	`Policy[]`	[{ allow: '/', userAgent: '*' }]	List of `Policy` rules

Policy

Name	Type	Required	Description
`userAgent`	`String`	Yes	You must provide name of user agent or wildcard
`disallow`	`String` / `String[]`	No	disallowed paths
`allow`	`String` / `String[]`	No	allowed paths
`crawlDelay`	`Number`	No
`cleanParam`	`String` / `String[]`	No

Sample of astro.config.mjs

// astro.config.mjs
import { defineConfig } from 'astro/config';
import robotsTxt from 'astro-robots-txt';

export default defineConfig({
  site: 'https://example.com',
  experimental: {
    integrations: true,
  },  
  integrations: [
    robotsTxt({
      host: 'example.com',
      sitemap: [
        'https://example.com/main-sitemap.xml', 
        'https://example.com/images-sitemap.xml'
      ],
      policy: [
        {
          userAgent: 'Googlebot',
          allow: '/',
          disallow: ['/search'],
          crawlDelay: 2,
        },
        {
          userAgent: 'OtherBot',
          allow: ['/allow-for-all-bots', '/allow-only-for-other-bot'],
          disallow: ['/admin', '/login'],
          crawlDelay: 2,
        },
        {
          userAgent: '*',
          allow: '/',
          disallow: '/search',
          crawlDelay: 10,
          cleanParam: 'ref /articles/',
        },
      ],
    }),
  ],
});

if you want your robots.txt without Sitemap: ... record please set sitemap option to false.

// astro.config.mjs
import { defineConfig } from 'astro/config';
import robotsTxt from 'astro-robots-txt';

export default defineConfig({
  // ...
  site: 'https://example.com',
  experimental: {
    integrations: true,
  },    
  integrations: [
    robotsTxt({
      sitemap: false,
      // ...
    }),
  ],
});

:exclamation: Important Notes

Only official @astrojs/* integrations are currently supported by Astro.

There are two possibilities to make astro-robots-txt integration working with current version of Astro.

Set the experimental.integrations option to true in your astro.config.*.

// astro.config.mjs
export default defineConfig({
  // ...
  experimental: {
    integrations: true,
  },  
});

Or use the --experimental-integrations flag for build command.

astro build --experimental-integrations

Inspirations:

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Package last updated on 01 May 2022

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