
The impact internal linking has on your content pages' SEO performance cannot be overestimated. The more content pages your website has, the harder it is to do internal linking manually.
Surfer’s Automated Internal Linking Tool helps you strengthen your website’s structure by quickly inserting contextual internal links. The tool includes two modes:
Semantic Internal Linking (new) – based on your GSC and Content Audit data, powered by LLM, AI, and content embeddings
Basic Internal Linking – fast, simple linking without Content Audit
Both modes are available in your AI articles, Content Audit drafts, or standalone Content Editor queries under the same button.
Semantic Internal LinkingThis is Surfer’s most advanced internal linking method — now available to 100% of users. Semantic Internal Linking is available as an option only if:
You have connected your Google Search Console (GSC) account to Surfer.
You have created a Content Audit (CA) project for the domain from which you want to insert internal links.
Processing the first run may take longer, depending on the size of your Content Audit project (how many pages your project includes). To check the project's size, navigate to your Content Audit dashboard and check the number of Pages.
If you want to insert the basic links instead, you can find this option under the three-dot icon.

Basic Internal LinkingThis option allows you to insert internal links without a Content Audit project, but you still need the Google Search Console connection.
In this case, Surfer will offer a simpler linking experience, using basic keyword and URL matching without semantic analysis.
If you’re using Basic Linking, our UI will allow you to configure a Content Audit project for more advanced (semantic) linking.

Open your Content Editor
Click the “Insert Internal Links” button
Select your domain
Choose between:
Semantic Linking (only available if you have a Content Audit project for the selected domain)
Basic Linking (available under the three dots icon - it's a default option for domains without Content Audit projects)
Wait for the suggestions to finish loading
Review the suggested links directly in the editor
Edit or remove any links as needed

This feature is included in all Surfer plans, without any credits!
Once the tool inserts internal links into an article, they behave like any other URL. You can edit a URL's anchor text or delete it.
You'd keep getting internal links if our AI finds relevant content pages on your website on any consecutive run. However, running it once should suffice in almost all cases since, as our study shows, the relevance of the suggestions gets worse with any consecutive run, and having more than 10 internal links in an article doesn't boost its SEO performance exponentially, as the first 10.
Yes, if you prefer to use the Basic Internal Linking tool, select your domain and click the three dots icon, then hit Insert Basic Links.
Do you still need help? Don't worry! You can contact us via live chat by clicking the icon in the bottom-right corner or at [email protected]!