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Sources are the foundation of AI optimization. While you can’t directly influence AI responses or training data, you can influence the sources AI models reference. Navigate to Sources in your sidebar to analyze which websites and URLs drive your visibility.

Why sources matter

Optimizing sources gives you the most control over your AI visibility. Sources are all URLs AI models access during response generation, while citations are sources explicitly referenced in the response text. Both contribute to AI responses. You have full control over your own website content and can influence external sources through PR, partnerships, and community engagement. When AI models reference sources where you have a stronger presence, your visibility increases.
Important limitation: AI models only see HTML content. They can’t read behind paywalls or load JavaScript-dependent content.

Source Domains

In Sources page, click on Domains tab to see Source Usage by Domain. You’ll see:
  • Source Usage by Domain graph: Shows trends over time for the top 5 domains. Hover over the chart to see which domain each line represents and track how source usage changes over your selected timeframe.
  • Sources Type chart: Displays the number of citations by domain category (Editorial, Corporate, UGC, etc.). This helps you understand what types of sources dominate in your industry and where you should focus optimization efforts.
Below, you’ll find a Domain table. It displays all domains that have contributed to generating answers for your prompts. The table shows:
  • Source: The domain name of the website.
  • Domain Type: Shows “You” for your domains, “Competitor” for tracked competitor domains, or automatic classification (Editorial, Corporate, UGC, Reference, Institutional, Other).
    • Click on All Domain Types to narrow your analysis to any of the domain types. You can select just one or multiple.
  • Used: Percentage of responses where this domain contributed to AI answers in the last 7 days (or any other time period you have selected).
  • Avg. Citations: Average number of times the domain was explicitly cited when used (in your selected time period).
Turn on the Gap Analysis toggle to see content gaps and opportunities based on the Gap Score column. Higher scores indicate bigger opportunities — sources that appear frequently and mention lots of competitors represent your best targets.

Source Domain Types

Source Type provides a high-level categorization of the entire domain or website. This helps you understand the general nature of the source at a glance.
ClassDescription
CORPORATEOfficial company websites and corporate pages
EDITORIALNews sites, blogs, online magazines, and other publications
INSTITUTIONALGovernment, educational, and non-profit organization websites
UGCUser-Generated Content from social media, forums, and communities
REFERENCEEncyclopedias, documentation, and other reference materials
COMPETITORWebsites and content from direct competitors
OTHERMiscellaneous or uncategorized sources

Source URLs

In the URLs view, you can identify specific pages that consistently influence AI responses and discover content formats that perform best in your industry:
  • Source Usage by URLs graph: Shows trends over time for the top 5 URLs, helping you track which specific pages gain or lose influence with AI models.
  • Sources Type chart: A category breakdown covering website page types, such as Article, Comparison, Listicle, Product Page, and others.
In the URL table below, you’ll find:
  • URL: The exact webpage used as a source.
  • URL Type: Automatic classification of the specific page type (Homepage, Article, Listicle, Comparison, Profile, etc.).
  • Mentions: Which brands were mentioned on this specific URL.
  • Used Total: Total number of times this URL was used as a source.
  • Avg. Citations: Average number of times the URL was explicitly cited when used (in your selected time period).
  • Updated: The latest time we fetched content from this URL.
  • Details: Click to see what AI models can actually read from this page.
Same as Domains tab, toggle Gap Analysis to see content gaps and opportunities on a URL level. Higher scores indicate bigger opportunities — URLs that appear frequently and mention lots of competitors represent your best targets.

Source URL Types

URL Type offers a more granular classification, identifying the specific kind of content on a given page. This allows for a deeper analysis of the context in which your brand is mentioned.
TypeDescription
HOMEPAGEThe main entry page of a website
CATEGORY PAGEA page that lists products, articles, or subcategories
PRODUCT PAGEA page detailing a single product or service
LISTICLEAn article structured as a list (e.g., “Top 10 Laptops of 2024”)
COMPARISONAn article or page that directly compares two or more products or services
PROFILEA directory-style entry for a company, person, or product (e.g. G2, Yelp, Crunchbase)
ALTERNATIVEAn article focused on alternatives to a specific product or service (e.g., “Best HubSpot Alternatives”)
DISCUSSIONContent from discussion forums, comment sections, or community threads
HOW TO GUIDEInstructional content with step-by-step guidance on completing a specific task
ARTICLEGeneral articles, news pieces, features, and other editorial content
OTHERAny page type that does not fit into the categories above

Source Metrics

The key metrics for Sources are “Used” and “Avg Citations”. They both give you an idea how relevant a source is for LLMs but differ in their influence.

Used

The “Used” metric measures the percentage of chats where content from one or more URLs from a specific domain contributed to the AI answer, even without a direct citation.
This metric reveals when your content shapes AI responses behind the scenes, demonstrating your content’s authority and influence even when not explicitly referenced.
The “Used” metric tracks when your domain or content is utilized by AI models to generate responses, regardless of whether your brand is explicitly mentioned or your content is directly cited. The used metric is calculated over your selected timespan as:
Used (Domains) = Avg unique URLs used per chat x Total responses where Domain was used as a source / Total responses
Used Total (URLs) = Total responses where URL was used as a source 
Used percentage matters for the following reasons: Content authority The “Used” metric reflects:
  • How authoritative your content is perceived to be.
  • Whether AI models trust your content as a reliable source.
  • Your content’s influence on AI-generated knowledge.
Role of external sources AI models often draw on a wide range of external sources to generate responses. When your content is included among these sources, it can:
  • Enhance the depth and accuracy of AI-generated information.
  • Contribute unique perspectives or data that shape the final response.
  • Increase your content’s visibility and authority within the broader ecosystem of referenced materials.
Strategic insights Usage analysis helps you:
  • Identify which content is most influential
  • Understand your content’s market position
  • Track improvements in content authority over time

Avg Citations

Average Citations measures the average number of times a specific source is explicitly cited within AI responses over the last 7 days. This metric indicates how often AI models find your content relevant enough to reference multiple times when your content is used.
Multiple citations in a single response indicate that AI models find your content highly relevant and trustworthy for the topic being discussed.
The average citations metric is calculated over your selected timespan as:
Average Citations (Domain) = Total citations of that Domain / Total responses where Domain was used as a source
Average Citations (URLs) = Total citations of that URL / Total responses where URL was used as a source
Average citations matter for the following reasons: Content authority Average citations reflect:
  • How authoritative your content is perceived to be
  • Whether AI models trust your content as a reliable source
  • Your content’s ability to serve as a comprehensive reference
Topic coverage Higher average citations indicate:
  • Your content covers topics comprehensively
  • AI models find your content relevant for multiple aspects of a topic
  • Strong content depth and breadth
Strategic insights Citation analysis helps you:
  • Identify which content is most influential
  • Understand your content’s market position
  • Track improvements in content authority over time

Gap Analyis

Gap Analysis shows sources and URls where your competitors are mentioned but your brand is not, helping you discover content gaps and partnership opportunities you might otherwise miss. How to prioritize opportunities:
  • Start with high Gap Scores: Focus on sources that are both frequently used and mention multiple competitors.
  • Check URL details: Click Details to see what content AI models can actually read from each page.
  • Action by domain type: Editorial sites might require PR outreach, while UGC platforms might allow direct community engagement.

How to use Source insights

Different source types require different optimization approaches, and gap analysis helps you prioritize where to focus first. Find the Gap Analysis toggle in your Sources page — either on a domain or URL level. Use high Gap Scores to prioritize sources that frequently mention competitors but not you. These represent your biggest immediate opportunities for visibility improvement. Quick strategies by source type:
  • Editorial: Focus on digital PR and journalist outreach.
  • Corporate: Explore partnerships and directory listings.
  • UGC: Engage authentically in communities or work with influencers.
  • Reference: Update incomplete information through proper channels.
  • Your own website: Optimize content structure and ensure AI readability.
For URLs, you’ll see what types of web pages get cited (Articles, Listicles, How-to Guides, Comparisons, etc.). Same as source types, you can use this information to adjust your content strategy and create formats that perform well in your industry.
For detailed tactics and implementation strategies, see our complete Sources guide.