## Diigo

Diigo is a bookmarking and research tool where users save, tag, annotate, and share web resources. A public Diigo bookmark can put your URL on a Diigo page, but the inspected public surface shows mixed link attributes, so treat it as a discovery and reference signal rather than a clean dofollow SEO link.

- URL: https://www.diigo.com/
- Guide: https://backlinkbadger.com/provider/diigo/
- Link type: nofollow
- Free option: yes
- Backlink value: 4/100
- Spam score: 2/100
- Difficulty: 25/100
- Estimated time: 10 minutes
- Requirements: Diigo account, URL to save, Useful title and tags

Diigo is best used as a public bookmarking and research surface. The backlink path is to save your page as a public bookmark with a useful title, description, and tags, then let that Diigo bookmark act as a secondary discovery page rather than a guaranteed authority link.

### Steps

1. Create a Diigo account from the [Diigo sign-up page](https://www.diigo.com/sign-up) or the **Sign up** link on the homepage.
2. Install the Diigo browser extension or use Diigo's bookmark-saving tools from your account.
3. Save the page you want to promote as a bookmark. Use the real page title or a concise human-readable title, not keyword stuffing.
4. Add a short description and relevant tags so the bookmark is understandable outside your own account.
5. Keep the bookmark public if your goal is a public Diigo page. Private library saves are useful for research, but they are not backlink placements.
6. Check the public Diigo page where the bookmark appears and verify the link yourself before reporting it as an SEO backlink.

A public Diigo hot-bookmarks page shows saved outbound resources and the users who saved them:

[Image: Diigo hot bookmarks page showing public saved outbound resources]

### Link attribute notes

The inspected public Diigo page at [https://www.diigo.com/buzz/hot](https://www.diigo.com/buzz/hot) exposes direct outbound title links in raw HTML, but it also prints a second visible URL anchor for the same bookmark with `rel="nofollow"`. Because the public evidence is mixed and a new user's own library/profile page rendered as a JavaScript app shell in this runtime, this page marks Diigo as **not a clean dofollow backlink source**.

Use Diigo when the saved resource is genuinely useful for research, curation, or later sharing. Do not rely on it as a high-value link-building shortcut.