Discover shared competitor link sources missing from your site

This comparison looks for referring domains linking to both supplied competitors while excluding sources associated with your domain in the supplier index. It is not a list of sources linking to just either competitor. Index-based exclusion does not independently prove that a link to your site is absent on the current web.

Each source has a separate relationship with each competitor. A source may supply many links to one and few to the other, and several links may come from one page. Keep those counts separate from page/domain counts and from the number of returned source groups; the difference alone does not explain traffic or quality.

Contribution rank measures the source’s link-graph contribution toward the competitor in that relationship, on the supplier’s default 0–1000 scale. Average spam score is a separate proprietary 0–100 model metric. Neither is Google search position, actual traffic or a placement recommendation; zero spam score does not certify safety.

first_seen is the crawler’s first observation for that relationship, recorded in UTC. A supplied loss value concerns the last backlink being lost; null remains unknown. These values are not link publication or query-completion times, and they do not establish the current state of every link or the age of the entire index.

This result identifies source domains and relationship aggregates, without individual source/destination URLs or contact details. Inspecting the specific pages requires a separate lookup. A shared referring domain alone does not establish relevance, willingness to link or permission for placement.

The Tool requires your domain and exactly two competitor domains, each as a bare string of 3–253 characters. The binding requests at most 20 groups and offers no custom limit, filter, sorting or pagination inputs. The database total is separate from delivered groups; the result is not a complete export or a documented top-20 list.

Use each map’s original labels and count unit. Link attributes and some categories can overlap; limited maps cannot establish complete proportions. The documented default ten-entry internal cap applies to TLD, type, attribute, platform and HTML-location maps, not all maps. Null country or attribute maps remain unknown rather than zero.