AI Source Map · October 2026
Which sites Claude reads before it makes a recommendation
The sites Claude read in its answers with web search on, by country and kind of business, and where they differ from what ChatGPT read.
18%of its answers read trustpilot.com
- Answers with web search on
- 676
- Searches per answer
- 1.7
- Sites read per answer
- 6.6
- Answers that cited a source
- 83%
In October 2026, Claude answered 676 questions about businesses, software and brands with web search on. The sites it read most: trustpilot.com (18%), revenuebase.ai (8.3%), werkenntdenbesten.de (5.6%). It read 6.6 different sites per answer and gave a site it read as the source of a recommendation in 83% of its answers.
The sites it reads most
Its 30 most read sources: the share of its own answers that read each and that cited it. Beside each, the share of ChatGPT’s answers that read it.
| Site | Read | Cited | ChatGPT |
|---|---|---|---|
| trustpilot.comChatGPT 12% | 18% | 11% | 12% |
| revenuebase.aiChatGPT 0.2% | 8.3% | 1.0% | 0.2% |
| werkenntdenbesten.deChatGPT 3.4% | 5.6% | 1.6% | 3.4% |
| clutch.coChatGPT 3.9% | 4.3% | 2.8% | 3.9% |
| reviewhero.ioChatGPT 2.7% | 3.8% | 2.1% | 2.7% |
| semrush.comChatGPT 0.3% | 3.8% | 1.2% | 0.3% |
| reco.seChatGPT 1.3% | 3.1% | 2.7% | 1.3% |
| rankingpro.plChatGPT 0.1% | 3.1% | 1.6% | 0.1% |
| designrush.comChatGPT 1.2% | 3.1% | 1.0% | 1.2% |
| indeed.comChatGPT 0.3% | 3.1% | 0.6% | 0.3% |
| herold.atChatGPT 1.6% | 3.0% | 2.5% | 1.6% |
| oferteo.plChatGPT 1.3% | 3.0% | 1.3% | 1.3% |
| linkedin.comChatGPT 5.0% | 3.0% | 0.6% | 5.0% |
| fresha.comChatGPT 2.4% | 2.7% | 1.2% | 2.4% |
| zaask.ptChatGPT 0.5% | 2.4% | 1.6% | 0.5% |
| portaldaqueixa.comChatGPT 0.2% | 2.4% | 1.0% | 0.2% |
| whatclinic.comChatGPT 1.0% | 2.4% | 1.0% | 1.0% |
| finn.noChatGPT 0% | 2.4% | 0.1% | 0% |
| brokerchooser.comChatGPT 0% | 2.2% | 1.5% | 0% |
| trustoo.nlChatGPT 2.0% | 2.2% | 1.5% | 2.0% |
| comerciosaopaulo.com.brChatGPT 0.1% | 2.2% | 0.9% | 0.1% |
| zuri.netChatGPT 0% | 2.1% | 1.6% | 0% |
| bestinireland.comChatGPT 0.4% | 2.1% | 1.5% | 0.4% |
| airtasker.comChatGPT 0.1% | 2.1% | 0.1% | 0.1% |
| webtonic.ioChatGPT 0.4% | 1.9% | 1.2% | 0.4% |
| which.co.ukChatGPT 1.5% | 1.9% | 0.9% | 1.5% |
| oneflare.com.auChatGPT 0.1% | 1.9% | 0.6% | 0.1% |
| hotelierschoice.comChatGPT 0.5% | 1.9% | 0.3% | 0.5% |
| pagesjaunes.frChatGPT 4.4% | 1.9% | 0% | 4.4% |
| themanifest.comChatGPT 0.7% | 1.8% | 1.2% | 0.7% |
By country
Countries with at least 5 of its answers, and the sites it read most in each.
- Australia
- 34 answers. Read most: oneflare.com.au 38%, airtasker.com 24%, top4.com.au 21%, canstar.com.au 18%, finder.com.au 15%
- Austria
- 34 answers. Read most: herold.at 59%, werkenntdenbesten.de 35%, reviewhero.io 27%, jobs.at 27%, vienna.at 21%
- Belgium
- 34 answers. Read most: parismatch.be 18%, test-aankoop.be 18%, bobex.be 18%, bx1.be 18%, callmepower.be 18%
- Brazil
- 33 answers. Read most: comerciosaopaulo.com.br 46%, benditoguia.com.br 21%, getninjas.com.br 21%, my-best.com 15%, guiafacil.com 12%
- Canada
- 34 answers. Read most: blogto.com 21%, homestars.com 21%, themanifest.com 12%, trustanalytica.org 12%, revenuebase.ai 12%
- Denmark
- 33 answers. Read most: trustpilot.com 73%, krak.dk 36%, handyhand.dk 30%, degulesider.dk 30%, skagenonline.dk 21%
- France
- 34 answers. Read most: pagesjaunes.fr 32%, obat.fr 21%, justacote.com 15%, selectra.info 12%, meilleurtest.fr 12%
- Germany
- 34 answers. Read most: werkenntdenbesten.de 56%, reviewhero.io 47%, sellwerk.de 18%, dastelefonbuch.de 18%, golocal.de 18%
- Ireland
- 33 answers. Read most: bestinireland.com 42%, trustpilot.com 36%, goldenpages.ie 21%, themanifest.com 15%, bark.com 15%
- Italy
- 34 answers. Read most: trustpilot.com 35%, indeed.com 21%, facile.it 15%, cronoshare.it 12%, sostariffe.it 12%
- Mexico
- 34 answers. Read most: cronoshare.com.mx 32%, milenio.com 15%, seccionamarilla.com.mx 15%, ahorraseguros.mx 12%, timeoutmexico.mx 12%
- Netherlands
- 34 answers. Read most: trustoo.nl 44%, trustpilot.com 32%, consumentenbond.nl 15%, overstappen.nl 15%, keuze.nl 8.8%
- Norway
- 34 answers. Read most: finn.no 44%, gulesider.no 32%, 1881.no 29%, trustpilot.com 27%, karrierestart.no 27%
- Poland
- 33 answers. Read most: rankingpro.pl 64%, oferteo.pl 61%, pracuj.pl 27%, panoramafirm.pl 24%, kb.pl 24%
- Portugal
- 34 answers. Read most: zaask.pt 47%, portaldaqueixa.com 38%, habitissimo.pt 21%, postal.pt 15%, ricavida.pt 15%
- Spain
- 34 answers. Read most: habitissimo.es 24%, trustlocal.es 24%, que.es 15%, rankia.com 12%, trustpilot.com 12%
- Sweden
- 34 answers. Read most: reco.se 62%, realtid.se 29%, trustpilot.com 27%, dagensps.se 18%, mynewsdesk.com 18%
- Switzerland
- 34 answers. Read most: zuri.net 41%, jobup.ch 24%, werkenntdenbesten.de 21%, comparis.ch 15%, moneyland.ch 15%
- United Kingdom
- 34 answers. Read most: trustpilot.com 41%, which.co.uk 24%, localpage.uk 15%, checkatrade.com 8.8%, doctify.com 8.8%
- United States
- 34 answers. Read most: threebestrated.com 27%, genera.cl 18%, splitmetrics.com 15%, expertise.com 12%, lantern.llc 12%
By kind of business
Kinds of business with at least 5 of its answers, across every country, and the sites it read most for each. 10 with fewer than 5 answers are in the data file only.
- Accountants
- 20 answers. Read most: revenuebase.ai 25%, indeed.com 20%, themanifest.com 15%, trustpilot.com 15%, goodfirms.co 15%
- Architects
- 20 answers. Read most: revenuebase.ai 25%, archdaily.com 15%, trustpilot.com 15%, architizer.com 10%, listenchampion.de 10%
- Banks
- 20 answers. Read most: pickthebank.eu 30%, wise.com 15%, nerdwallet.com 10%, bytt.no 10%, finanzfluss.de 10%
- Car brands
- 20 answers. Read most: autoexpress.co.uk 15%, which.co.uk 15%, it.com 15%, yougov.com 10%, basicthinking.de 10%
- Car insurance companies
- 20 answers. Read most: da-direkt.de 15%, zurich.de 15%, test-aankoop.be 10%, test.de 10%, which.co.uk 10%
- Car repair shops
- 20 answers. Read most: trustpilot.com 30%, idgarages.com 15%, honestjohn.co.uk 10%, j2rauto.com 10%, motor16.com 10%
- Cleaning services
- 20 answers. Read most: trustpilot.com 65%, indeed.com 25%, habitissimo.es 10%, werkenntdenbesten.de 10%, dastelefonbuch.de 10%
- Dentists
- 20 answers. Read most: whatclinic.com 45%, bookimed.com 20%, yelp.com 20%, trustpilot.com 15%, reviewhero.io 10%
- Dermatologists
- 20 answers. Read most: bookimed.com 30%, whatclinic.com 25%, doctify.com 15%, trustpilot.com 15%, fresha.com 15%
- Digital marketing agencies
- 20 answers. Read most: semrush.com 60%, designrush.com 50%, clutch.co 45%, revenuebase.ai 40%, webtonic.io 30%
- Driving schools
- 20 answers. Read most: trustpilot.com 40%, google.com 15%, werkenntdenbesten.de 10%, reviewhero.io 10%, 1881.no 5.0%
- Electricians
- 20 answers. Read most: trustpilot.com 30%, airtasker.com 20%, homestars.com 10%, trustlocal.de 10%, werkenntdenbesten.de 10%
- Electronics retailers
- 19 answers. Read most: statista.com 21%, giga.de 16%, trustpilot.com 16%, ahrefs.com 11%, finn.no 11%
- Energy suppliers
- 19 answers. Read most: disq.de 11%, check24.de 11%, keuze.nl 11%, which.co.uk 11%, overstappen.nl 11%
- Financial advisors
- 20 answers. Read most: trustpilot.com 15%, group.bnpparibas 10%, rikatillsammans.se 10%, test.de 10%, linkedin.com 10%
- Gyms
- 20 answers. Read most: classpass.com 35%, basic-fit.com 15%, trustpilot.com 15%, brucestudios.com 15%, citiesinsider.com 10%
- Hair salons
- 20 answers. Read most: fresha.com 40%, trustpilot.com 15%, planity.com 15%, timeout.com 10%, reviewhero.io 10%
- Home internet providers
- 20 answers. Read most: ispreports.org 15%, indiehackers.com 15%, subger.com 15%, check24.de 10%, connect.de 10%
- Hotels
- 20 answers. Read most: hotelierschoice.com 60%, trip.com 25%, timeout.com 25%, travelocity.com 25%, loudavymkrokem.cz 20%
- Insurance brokers
- 20 answers. Read most: trustpilot.com 40%, revenuebase.ai 40%, indeed.com 15%, insurancebusinessmag.com 15%, linkedin.com 15%
- Interior designers
- 20 answers. Read most: rugsociety.eu 45%, brabbu.com 30%, clutch.co 25%, dezeen.com 15%, linkedin.com 15%
- Lawyers
- 20 answers. Read most: revenuebase.ai 35%, dlapiper.com 15%, cms.law 10%, legal500.com 10%, chambers.com 10%
- Mobile carriers
- 20 answers. Read most: opensignal.com 20%, tomsguide.com 10%, disq.de 10%, 4gnews.pt 5.0%, barchart.com 5.0%
- Moving companies
- 20 answers. Read most: trustpilot.com 65%, disq.de 10%, habitissimo.es 10%, movebuddha.com 10%, obat.fr 10%
- Online brokers
- 19 answers. Read most: brokerchooser.com 74%, investingintheweb.com 21%, quantroutine.com 16%, investing.co.uk 16%, curvo.eu 11%
- Physiotherapists
- 20 answers. Read most: fresha.com 35%, doctify.com 15%, trustpilot.com 15%, reviewhero.io 10%, werkenntdenbesten.de 10%
- Plumbers
- 20 answers. Read most: trustpilot.com 45%, facilitybot.co 10%, checkatrade.com 10%, google.com 10%, aa.org 10%
- Real estate agencies
- 20 answers. Read most: trustpilot.com 25%, provenexpert.com 20%, revenuebase.ai 20%, indeed.com 15%, merca2.es 10%
- Restaurants
- 20 answers. Read most: michelin.com 25%, foodle.pro 20%, falstaff.com 15%, thebettervacation.com 15%, joinpearl.co 15%
- Roofers
- 20 answers. Read most: trustpilot.com 35%, reviewhero.io 15%, werkenntdenbesten.de 15%, angi.com 10%, bark.com 10%
- Supermarkets
- 19 answers. Read most: retaildetail.be 16%, statista.com 16%, yougov.com 11%, bolsamania.com 11%, iamexpat.ch 11%
- Veterinarians
- 20 answers. Read most: trustpilot.com 20%, vethelpdirect.com 10%, werkenntdenbesten.de 10%, indeed.com 10%, linkedin.com 10%
- Web design agencies
- 20 answers. Read most: semrush.com 65%, revenuebase.ai 60%, clutch.co 45%, designrush.com 45%, goodfirms.co 30%
- Wedding photographers
- 20 answers. Read most: imagen-ai.com 40%, wezoree.com 30%, snappr.com 25%, zola.com 25%, airbnb.com 25%
Where Claude and ChatGPT differ
Of the 20 sites Claude reads most, 4 are also among the 20 that ChatGPT reads most. The widest gap is on reddit.com: Claude read it in 0% of its answers, ChatGPT in 89% of its own. The lists below take the sites read in at least 5 answers in all, and compare the share of each assistant’s own answers that read them.
Read more by Claude than by ChatGPT
| Site | Claude | ChatGPT |
|---|---|---|
| revenuebase.ai | 8.3% | 0.2% |
| trustpilot.com | 18% | 12% |
| semrush.com | 3.8% | 0.3% |
| rankingpro.pl | 3.1% | 0.1% |
| indeed.com | 3.1% | 0.3% |
| finn.no | 2.4% | 0% |
| brokerchooser.com | 2.2% | 0% |
| portaldaqueixa.com | 2.4% | 0.2% |
| werkenntdenbesten.de | 5.6% | 3.4% |
| comerciosaopaulo.com.br | 2.2% | 0.1% |
Read more by ChatGPT than by Claude
| Site | Claude | ChatGPT |
|---|---|---|
| reddit.com | 0% | 89% |
| wikipedia.org | 0.4% | 66% |
| elpais.com | 0% | 6.0% |
| birdeye.com | 0% | 5.0% |
| wallpaper.com | 0.1% | 4.8% |
| cadenaser.com | 0% | 4.1% |
| trustindex.io | 0.3% | 4.1% |
| michelin.com | 0.9% | 4.6% |
| youtube.com | 0% | 3.6% |
| localsearch.ch | 0% | 3.0% |
Questions
- What sources does Claude use for recommendations?
- In October 2026, with web search on, the sites Claude read most before a recommendation were: trustpilot.com (18%), revenuebase.ai (8.3%), werkenntdenbesten.de (5.6%). It gave a site it read as the source of a recommendation in 83% of its 676 answers.
- Does Claude read the same sites as ChatGPT?
- Of the 20 sites Claude reads most, 4 are also among the 20 that ChatGPT reads most. The widest gap is on reddit.com: Claude read it in 0% of its answers, ChatGPT in 89% of its own.
- How many sites does Claude read before it makes a recommendation?
- In October 2026, Claude ran 1.7 searches and read 6.6 different sites per answer on average.
How this was measured
- The question
- Each assistant was asked the questions a buyer asks, with web search on: about a local trade in a city, or about software or a consumer brand in a country. Every page its searches returned and every page it gave as a source was kept.
- Counting
- A site counts once per answer, however many of its pages the answer read. Read is the share of answers that read at least one page of the site; cited is the share that gave one of its pages as the source of a recommendation.
- Sources
- A site counts as a source only when it appears on 3 or more pages of the Index. Below that it is almost always a business’s own website or a one-off article.
- Edition
- October 2026. 3,256 answers: ChatGPT 2,580, Claude 676.
- Coverage
- Not every assistant has answered on every page yet this month, so read each assistant’s shares next to its own number of answers.
Citing this data
AIGROW, AI Source Map, Claude, October 2026, aigrow.gg/ai-sources/assistant/claude. The figures and the data are published under CC BY 4.0: reuse them with a link to this page.
Get each new edition by email
Is your business on the sites the assistants read?
The free scan asks ChatGPT, Claude, Gemini and Grok the questions your customers ask and shows who they name. Check whether your business is on the sites they read before they answer.
Edition October 2026 · data under CC BY 4.0