Links are the bread and butter of Dub.

Everything on Dub starts with a link. Whether you’re creating:

  • a handful of links for your marketing campaign
  • hundreds of links for your affiliate program
  • thousands of links, programmatically, for your SMS campaign

In this guide, we’ll cover the link model, how to create links, and more.

The link model consists of the following properties:

PropertyDescriptionExample
idThe unique identifier of the link (prefixed with link_)link_eBKA4MT44XnI17hYLchkjUOd
urlThe destination URL of the linkhttps://dub.co/home
shortLinkThe shortened version of the link (including https)https://dub.link/claim
domainThe domain of the linkdub.link
keyThe short link slugclaim

For more advanced features like custom link previews, conversion tracking, and more, see the full list of properties below;

You can use the various Dub SDKs to programmatically manage your links.

The url field, representing the destination URL, is the sole mandatory parameter required for the creation of a new short link.

An existing link can be updated by providing the id to the update method. This method returns the updated link as a response.

You can use either the linkId or an externalId prefixed with ext_ which is a unique identifier for the link in your own database to associate it with the link in Dub’s system.

Upserting a link is a combination of creating and updating a link. If a link with the same URL already exists, return it (or update it if there are any changes). Otherwise, a new link will be created.

This allows you to use the upsert method without the necessity of checking for the link’s existence beforehand.