This package allows you to define how external links are created by specifying the rel types you want added, target and even a whitelist for the nofollow rel in case you want to pass SEO juice to other domains.
This is a remark plugin and it should be placed inside gatsby-transformer-remark (gatsby-config.js) list of plugins:
...
{
resolve: `gatsby-transformer-remark`,
options: {
plugins: [{
resolve: 'qards-transformer-external-links',
options: {
target : '_blank',
rel : ['nofollow', 'noopener', 'noreferrer'],
bypassNofollow: ['qards.io', 'typely.com'],
},
}],
},
},
The plugin is developed for Qards which is a Gatsby CMS so keep that in mind as it may suffer changes that will not allow it to run on regular Gatsby apps.
It's no different from gatsby-remark-external-links except for the bypassNofollow directive which I wanted.