gatsby-plugin-canonical-urls

Add canonical links to HTML pages Gatsby generates.

This implementation is primarily helpful for distinguishing between https/http,
www/no-www but could possibly be extended to help with when sites add multiple
paths to the same page.

Install

npm install gatsby-plugin-canonical-urls

How to use

``javascript
// In your gatsby-config.js
plugins: [
{
resolve: gatsby-plugin-canonical-urls,
options: {
siteUrl: https://www.example.com,
},
},
]
`

With the above configuration, the plugin will add to the head of every HTML page
a rel=canonical e.g.

`html

`

$3

URL search parameters are included in the canonical URL by default. If you worry about duplicate content because for example /blog and /blog?tag=foobar will be indexed separately, you should set the option stripQueryString to true. The latter will then be changed to /blog.

`js:title=gatsby-config.js
module.exports = {
plugins: [
{
resolve: gatsby-plugin-canonical-urls,
options: {
siteUrl: https://www.example.com,
stripQueryString: true,
},
},
],
}
``