Methodology & sources
The statistics on this page are compiled from publicly available research by reputable organizations. Every figure links to the source it was taken from, and every source was opened and checked on 6 November 2026. Where only an older edition exists, the year of that edition is shown. The sources are:
- Google: Business Profile Help, The Keyword (Google Maps blog), Think with Google (2016)
- BrightLocal: Local Consumer Review Survey 2026, Google My Business Insights Study (2019), Google Reviews Study (2018), Local Services Ads Click Study (2018), SMB Marketing in 2025
- Whitespark: Local Search Ranking Factors 2026
- SOCi: State of Google Reviews (2022)
- Sterling Sky: Google Posts analysis of 1,000+ posts (2023)
- Northwestern University / Spiegel Research Center: How Online Reviews Influence Sales (2017)
Disclaimer: Figures are sourced from the most recent available editions of the cited reports. Several benchmarks (views, actions, photos) come from older studies and carry their year; photo and review effects are correlations, not proven causes. Most data is international (mainly US), not Dutch. This page is compiled for informational purposes and does not constitute financial or strategic advice. For tailored local growth plans, talk to our online marketing agency in Amsterdam or contact us.