collected,study,engine,attribution_as_logged,firm_has_own_website,recommendations
2026-09-26,locksmiths,ChatGPT,no source,yes,15
2026-09-26,locksmiths,ChatGPT,own site linked,yes,6
2026-09-26,locksmiths,ChatGPT,third-party source linked only,no/unchecked,5
2026-09-26,locksmiths,ChatGPT,third-party source linked only,yes,17
2026-09-26,locksmiths,Gemini,no source,no/unchecked,2
2026-09-26,locksmiths,Gemini,no source,yes,25
2026-09-26,plumbers,ChatGPT,no source,no/unchecked,5
2026-09-26,plumbers,ChatGPT,no source,yes,35
2026-09-26,plumbers,ChatGPT,third-party source linked only,yes,12
2026-09-26,plumbers,Gemini,no source,no/unchecked,7
2026-09-26,plumbers,Gemini,no source,yes,22
2026-09-26,plumbers,Gemini,"source named in text, no link",no/unchecked,3
2026-09-26,plumbers,Gemini,"source named in text, no link",yes,2