What is SERP Overlap?
SERP Overlap measures how many domains rank for both keywords. High overlap (>60%) means Google considers the keywords very similar — they might cause keyword cannibalization. Low overlap means the keywords target different intents and should have separate pages.
More tools
SERP Checker
Check Google rankings for a keyword.
Keyword Research
Find related keywords & volume.
Robots.txt Analyzer
Check AI & search crawler access.
Why does this use 2 queries?+
Each keyword requires a separate Google SERP lookup. The tool fetches both, then compares the domain lists locally. With the free tier (5/day), you can do 2 overlap comparisons.
SERP overlap in the extension
Lumina compares SERPs and detects cannibalization automatically.
Lumina zu Chrome hinzufügen — Kostenlos