Link Intersect / Backlink Gap

Compare outbound link profiles of two competitor pages to find linking domains you could also target.

Fetching live data…

Quick answer

The Link Intersect tool is a free way to compare the outbound link profiles of two competitor pages and uncover the linking domains you could also target. You give it two URLs; it fetches both live, extracts every external domain each one links out to, and highlights the overlap and the differences. The result is a practical prospecting list of sites already linking within your niche — built from real, live page data with no signup.

How it works

  1. Enter two competitor page URLs you want to compare.
  2. The tool fetches both pages live and parses all of their outbound links.
  3. It groups the external domains each page links to and intersects the two sets.
  4. You get the shared domains, the ones unique to each page, and a clean list of outreach prospects.

What it shows

  • Shared linking domains — sites that both competitor pages reference.
  • Unique to page A / page B — domains only one of them links to.
  • Outbound domain count — how many external sites each page links out to.
  • Anchor text — the clickable text used for each outbound link.
  • Rel attributes — whether each link is dofollow or nofollow.
  • Target URLs — the exact destination of every external link.
  • Prospect list — a deduplicated set of domains worth approaching.
This compares the links on the two pages you supply (their outbound profile), using live HTML. It is not a crawl of the entire web's backlinks pointing at a domain — that requires a licensed index. Use it to surface resource pages, roundups and partners already active in your space.

Common use cases

  • Outreach prospecting — find resource and roundup pages that already cite competitors.
  • Partnership discovery — spot domains linking across your niche worth a pitch.
  • Competitive benchmarking — see who two rivals both reference and why.
  • Content sourcing — collect authoritative references competitors trust.

Example

Compare two "best CRM" roundup articles and the tool might show 9 domains both link to — review sites, an industry blog, a comparison directory — plus several unique to each. Those 9 shared domains become your first outreach targets, since they already link to pages like yours.

Frequently asked questions

Does this show who links to a competitor's domain?

No — it shows who the two supplied pages link out to, from live HTML, then intersects those lists. That overlap is your prospecting list. Discovering inbound backlinks to a domain requires a licensed backlink index, so we do not fabricate that data.

How many URLs can I compare?

You compare two pages per run for a clean intersection. Repeat with different competitor pairs to widen your prospect list. To verify a placement after outreach, use the Backlink Checker / Verifier.

How do I turn prospects into links?

Qualify each domain, then pitch genuinely useful content. The full workflow — from finding targets to earning the link — is in our backlink analysis & link building guide and broken link building guide.