The External link concentration signal shows how this scan’s external links are distributed across target domains.
This is a scan-level signal. It answers: “Are many external links pointing to the same outside domain?”
What this signal means
External link concentration does not automatically mean something is broken.
It means Siteimp found a pattern worth reviewing: a large share of the scan’s external links may point to one or a small number of outside hosts.
That can be perfectly normal. For example, a documentation site may link often to GitHub, MDN, Stripe, YouTube, a CDN, or a parent company domain.
The signal is useful because it makes the pattern visible instead of leaving it buried in raw link rows.
How to read the table
The table shows the top external target hosts found in this scan.
Target host is the external domain receiving links.
Links is the number of external link occurrences pointing to that host.
Source pages is the number of pages in this scan that link to that host.
Share of links shows the percentage of all external links represented by that host.
Why it matters
External link concentration can reveal:
- repeated template links
- footer or navigation links repeated across many pages
- heavy reliance on one external service
- affiliate, social, documentation, or vendor links
- unexpected links appearing across the site
This signal is about attention, not accusation. It helps you decide whether the pattern is intentional.
What to check next
Look at the target hosts with the largest share of links.
Ask whether those domains are expected.
If a domain appears because of a footer, widget, embedded tool, or shared template, review the source of that repeated link.
If the domain is unfamiliar, inspect the pages that link to it.
If the concentration is intentional, no action may be needed.
Why this signal may be empty
If the page says No external link concentration signal was present for this scan, Siteimp did not find enough concentration to show this signal.
That does not mean the scan had no external links. It means the distribution did not produce this scan-level attention signal.