25%
25% -- organic traffic increase for Grocery site category pages (SearchPilot experiment) (2026)
In a SearchPilot experiment on a grocery website, adding internal links between category levels resulted in a 25% increase in organic traffic across the tested pages.
- Success was attributed to improved information architecture and crawl paths, not merely link volume.
- Specific date of the SearchPilot experiment is not stated in the source text.
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
SearchPilot A/B test on a grocery site cited by Balarab: adding internal links between category levels achieved a 25% increase in organic traffic across tested pages; success attributed to improved information architecture and crawl paths, not link volume alone. Experiment date not specified in source.
<blockquote cite="https://lighthousedata.io/data/searchpilot-internal-links-grocery-25pct" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>25%</strong> -- organic traffic increase for Grocery site category pages (SearchPilot experiment)<br><small>Source: SearchPilot (2026) · <a href="https://lighthousedata.io/data/searchpilot-internal-links-grocery-25pct" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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