Source:

{
  "type": "doc",
  "content": [
    {
      "type": "paragraph",
      "content": [
        {
          "type": "text",
          "text": "Wow, this has support for links to the whole "
        },
        {
          "type": "text",
          "marks": [
            {
              "type": "link",
              "attrs": {
                "href": "https://en.wikipedia.org/wiki/World_Wide_Web",
                "target": "_blank",
                "class": null
              }
            }
          ],
          "text": "world wide web"
        },
        {
          "type": "text",
          "text": ". We tested a lot of URLs and I think you can add *every URL* you want. Isn’t that cool? Let’s try "
        },
        {
          "type": "text",
          "marks": [
            {
              "type": "link",
              "attrs": {
                "href": "https://statamic.com/",
                "target": "_blank",
                "class": null
              }
            }
          ],
          "text": "another one!"
        },
        {
          "type": "text",
          "text": " Yep, seems to work."
        }
      ]
    },
    {
      "type": "paragraph",
      "content": [
        {
          "type": "text",
          "text": "By default every link will get a "
        },
        {
          "type": "text",
          "marks": [
            {
              "type": "code"
            }
          ],
          "text": "rel=\"noopener noreferrer nofollow\""
        },
        {
          "type": "text",
          "text": " attribute. It’s configurable though."
        }
      ]
    }
  ]
}

Wow, this has support for links to the whole world wide web. We tested a lot of URLs and I think you can add *every URL* you want. Isn’t that cool? Let’s try another one! Yep, seems to work.

By default every link will get a rel="noopener noreferrer nofollow" attribute. It’s configurable though.