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AI Visibility Index · September 2026

Web design agencies in Rotterdam that AI assistants recommend

We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for web design agencies in Rotterdam, three times each, in Dutch, and counted who they named. These are the businesses named in two or more of the 36 answers.

Check whether AI names youSee the ranking

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Web design agencies · Rotterdam
28%of answers named Level Level
Answers
36
Businesses named
57
Named only once
39
Named by 2+ assistants
1 of 18
Named again on a rerun
29%

Edition September 2026. Download the data

Asked for web design agencies in Rotterdam, ChatGPT, Claude and Gemini most often named Level Level (28% of answers), Bureau Strak (17%) and Webdesign Rotterdam (14%). Across 36 answers they named 57 different businesses, 39 of them only once. Each of four buyer questions was asked three times, in Dutch, in September 2026.

The ranking

The AI Recommendation Rate is the fraction of the 36 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Web design agencies in Rotterdam named by AI assistants, September 2026
#BusinessAI Recommendation RateChatGPTClaudeGeminiQuestionsAvg. position
1Level LevelIs this your business?28%95%: 16 to 44%58%0%25%4 of 41.8
2Bureau StrakIs this your business?17%95%: 8 to 32%0%0%50%3 of 41.2
3Webdesign RotterdamIs this your business?14%95%: 6 to 29%0%0%42%2 of 41.4
4CoolblueIs this your business?11%95%: 4 to 25%0%0%33%2 of 41.8
5ISM eCompanyIs this your business?8%95%: 3 to 22%25%0%0%1 of 41.3
6WebtifyIs this your business?8%95%: 3 to 22%25%0%0%1 of 41.3
7Online DepartmentIs this your business?8%95%: 3 to 22%25%0%0%2 of 42.3
8E-sitesIs this your business?8%95%: 3 to 22%0%0%25%1 of 43
9Bureau voor WebdesignIs this your business?8%95%: 3 to 22%0%0%25%2 of 43.3
10WebNLAlso written WebNL creative studiosIs this your business?8%95%: 3 to 22%0%0%25%2 of 44
11HoppingerIs this your business?6%95%: 2 to 18%17%0%0%1 of 41.5
12FabriqueIs this your business?6%95%: 2 to 18%0%0%17%1 of 42
13Maatwerk OnlineIs this your business?6%95%: 2 to 18%17%0%0%1 of 42
14MangroveIs this your business?6%95%: 2 to 18%17%0%0%2 of 42.5
15Happy HorizonIs this your business?6%95%: 2 to 18%0%0%17%2 of 43
16Studio VandaarIs this your business?6%95%: 2 to 18%0%0%17%1 of 43
17VruchtvleesIs this your business?6%95%: 2 to 18%0%0%17%2 of 43.5
18Rotterdam Webdesign BureauIs this your business?6%95%: 2 to 18%0%0%17%1 of 44

Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 39 more names came up in a single answer and are counted above but not listed.

Is this your business?

See what the assistants say about your business today. The free checker asks ChatGPT, Claude, Gemini and Grok two of the Index questions for this category, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up.

Check your businessNamed above? Add the badgeWhat the audit does

What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#ChatGPTClaudeGemini
1Level Level58%No other name twiceBureau Strak50%
2ISM eCompany25%Webdesign Rotterdam42%
3Webtify25%Coolblue33%
4Online Department25%Level Level25%
5Hoppinger17%E-sites25%

Claude named no business in 10 of its 12 answers.

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Correct or remove a listing
Named by AI assistants: Web design agencies in Rotterdam, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/web-design-agencies/rotterdam"><img src="https://aigrow.gg/badges/index/2026-09/web-design-agencies/rotterdam.svg" width="312" height="100" alt="Named by AI assistants: Web design agencies in Rotterdam, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant, in Dutch. The English under each is our translation. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

  1. 1Wat is het beste webdesignbureau in Rotterdam?What is the best web design agency in Rotterdam?
  2. 2Ik heb een nieuwe website nodig voor mijn kleine bedrijf in Rotterdam. Welke webdesigner zou je aanraden?I need a new website for my small business in Rotterdam. Which web designer would you recommend?
  3. 3Welk webbureau in Rotterdam maakt goede webshops?Which web agency in Rotterdam builds good online stores?
  4. 4Welk webdesignbedrijf in Rotterdam is betaalbaar voor een startup?Which web design company in Rotterdam is affordable for a startup?

How to read this page

The full method
What it measures
Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter
36 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings
Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong
If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.

Where the assistants look

The sites read most often, with web search on, before the assistants answer about this category in the Netherlands. From the AI Source Map: 5 answers.

See every site for this category
trustoo.nl
Read in 80% of the answers
reddit.com
Read in 80% of the answers
trustpilot.com
Read in 80% of the answers

Elsewhere in the Index

Web design agencies elsewhere
AmsterdamThe HagueUtrechtAntwerpGhentAarhus
Also in Rotterdam
DentistsLawyersAccountantsPlumbersGymsReal estate agencies

Is your business on this list?

The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.

Run the free AI scanRead the method

Edition September 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0