How do I use the Diff Module for Drupal SEO?

https://www.drupal.org/project/diff

When editing a node, you can create a new revision without overwriting the original. You do this by selecting the Create new revision checkbox from the Publishing options tab. You can set your Content Types to select the checkbox by default when creating new content. This preset saves a little time and ensures that revisions are saved no matter who edits your content. 1. Click Manage > Structure > Content types (Coffee: “content types”) or visit http://yourDrupal8site.dev/admin/structure/types in your browser.

2. Next to your first Content Type, open the drop-down menu next to “Manage fields” and click the Edit link.
3. Click the Publishing options tab and select the Create new revision checkbox.
4. Click the Save content type button at the bottom of the page.
5. Repeat steps 1-4 for each Content Type.

Install and Enable the Diff Module

1. Install the Diff module on your server.
2. Go to the Extend page: Click Manage > Extend (Coffee: “extend”) or visit http://yourDrupal8site.dev/admin/modules in your browser.
3. Select the checkbox next to “Diff” and click “Install” and click the Install button at the bottom of the page. There are no separate permissions required for the Diff module.

Configure the Diff module

1. Go to the Diff admin page by clicking Manage > Configuration > Content authoring > Diff (Coffee: “diff”) or visit

http://yourDrupal8site.dev/admin/config/content/diff/general in your browser.

2. The default settings on the Settings and Configurable Fields tabs are fine.
3. Click on the Fields tab and ensure the module is configured as shown above, paying close attention to these settings: A. Body is set to “Text with Summary Field”. B. Title is set to “Core Field Diff”. C. Authored by is set to “Entity Reference Field Diff”. D. Revision log message is set to “Core Field Diff”.
4. Click the Save button at the bottom of the page.

Using the Diff module

1. Go to a piece of content where you have saved revisions.
2. Click the Revisions tab.
3. You will see a list of revisions with radio buttons. Select the two revisions you wish to compare.
4. Click the Compare button.

The Drupal node’s fields are displayed side-by-side with the changes highlighted. This screen makes it easy to see what edits made a difference in your search rankings, click-through rates, and conversions. If you see “+” between the fields, that means some text was added. If you see “-“, it means that some text was deleted.