Link Intersection Finder
Find domains linking to multiple competitors but not to you.
Competitor backlink lists
One URL per line per block. We find domains that link to the most competitors.
All-competitor intersection (2)
Domains that link to every competitor — very high-value outreach targets.
All domains by intersection count
Start here · Intersection vs backlink gap
Each Competitor textarea expects one URL per line from that competitor's export. Hostnames normalize by stripping www and schemes.
The tool scores every unique host by how many competitor lists include it. All N share counts domains present in every paste—your highest-confidence shared authority targets. Partial intersection counts hosts appearing in more than one but not all lists.
The detailed list shows k/N badges plus C# chips marking which competitor columns referenced the domain. Copy under the full intersection exports those domains only; Copy ranked list exports the first 100 rows sorted by intersection strength (matching the scrollable preview). Use + competitor up to 15 textarea blocks.
When to use this tool
- Enterprise multi-brand comps
Add a textarea per rival business unit to see who funds all of them.
- SERP cluster outreach
When three blogs dominate a keyword, intersect their backlinks first.
- International SEO
Separate ccTLD competitor exports before intersecting so signals stay comparable.
- Post-merger benchmarking
Paste legacy and new brand competitor lists side by side.
Examples
Walk through these with the form above — they are practice scenarios, not live data.
Widen the net
Try this
Remove the smallest competitor list so N drops from 3 to 2.
What to look for
All N share may jump because fewer lists must align.
Empty full intersection
Try this
Keep lists disjoint with no common domains.
What to look for
Emerald section prompts you to widen lists; partial rows may still exist.
Short tutorial
Follow in order the first time you use the tool; later you can skip to the step you need.
- Step 1 — Export comparable lists
Use the same date range and link type filters per competitor.
- Step 2 — Paste into competitor blocks
Use + competitor for additional rivals (up to 15 blocks).
- Step 3 — Read summary tiles
Total domains, full intersection count, and partial count frame effort size.
- Step 4 — Priority exports
Copy full-intersection domains first; Copy ranked list exports the previewed top 100 as a newline list for Sheets.
- Step 5 — Compare with gaps
Run competitor backlink gap when you also need domains missing from your profile.
More detail
New here? Skim Start here first, then run one Examples scenario in the form above.
Link Intersection Finder does one job: find domains linking to multiple competitors but not to you. It lives under Backlinks & Anchors on SEOToolkits, where the beginner idea is simple: Backlink SEO studies links from other sites because those links can pass trust, context, and referral traffic.
FAQ
- Does it include my domain?
- It only analyzes competitor pastes—add yourself manually if you need a three-way view.
- Duplicate URLs per line?
- Each line tokenizes to a set per competitor, so duplicates collapse.
- Subdomains separated?
- Hosts include subdomains (
blog.example.com≠example.com). - Why cap 100 rows in the long list?
- UI performance limits the rendered scroll area; counts in the tiles still reflect the full pasted data. Copy ranked list grabs the same first 100 rows shown (sorted). Split work in spreadsheets if you must process more rows at once.
- How many competitor blocks?
- Up to 15 — the + competitor control disables at the cap.
Related tools
Same workflow cluster on SEOToolkits — open another module without leaving context.
Competitor Backlink Gap
Find sites linking to your competitors but not to you.
Link Building Prospect Scorer
Score outreach targets on authority, relevance, and reach.
Referring Domain Analyzer
Break down your referring-domain profile by metric and TLD.
Toxic Backlink Detector
Flag spam, PBN, and link-scheme footprints in your link profile.