The most visible online payment gateways in Spain, October 2026

October 2026 · 15 questions asked from Spain in Spanish and English · ChatGPT, Google AI Overviews, Gemini and Google AI Mode · 60 answers read

Leader

Stripe

75Heralded Score, range 66–82

Where engines disagree most

Adyen

1/4engines put it in their top three

Top three on Google AI Overviews, not on Google AI Mode, Gemini and ChatGPT

Brands

Search is not measured for this board yet, so it ranks on AI answers.

Rank Brand Rank change Heralded Score All AI Score trend Mentioned Recommended By engine Mentioned by Change
1 Stripe US New entry 75 , range 66–82 75#1
75
  • : score 75 · #1
88% 39% None First reading
2 PayPal US New entry 74 , range 62–81 74#2
74
  • : score 74 · #2
78% 44% None First reading
3 Redsys ES New entry 52 , range 42–68 52#3
52
  • : score 52 · #3
46% 34% None First reading
4 Adyen NL New entry 38 , range 31–48 38#4
38
  • : score 38 · #4
33% 13% None First reading
5 Shopify Payments CA New entry 33 , range 18–42 33#5
33
  • : score 33 · #5
26% 8% None First reading
6 Square US New entry 32 , range 12–41 32#6
32
  • : score 32 · #6
23% 7% None First reading
7 Mollie NL New entry 28 , range 8–38 28#7
28
  • : score 28 · #7
15% 9% None First reading
8 SeQura ES New entry 9 , range 4–33 9#8
9
  • : score 9 · #8
11% 4% None First reading
9 PAYCOMET ES New entry 8 , range 3–32 8#9
8
  • : score 8 · #9
8% 4% None First reading
10 Helcim CA New entry 8 , range 3–32 8#10
8
  • : score 8 · #10
7% 5% None First reading

“=” marks brands whose score ranges overlap, so the test cannot separate them. Every brand named in at least three answers is ranked. AI gives each brand’s score and rank from the engines’ answers; Search is not measured for this board yet. By engine has one dot per engine (ChatGPT, Google AI Overviews, Gemini and Google AI Mode), darker the more often it names the brand.

Most cited sources

No answer cited a source of this type (Community).

Questions asked

QuestionLanguageMost recommended
best payment gateways for small businesses English PayPal and Stripe, tied
online payment gateway for ecommerce English PayPal and Stripe, tied
how to accept online payments on a website English Stripe
how to reduce declined card payments online English PayPal
payment gateway fees comparison English Adyen, PayPal and Stripe, tied

Each engine's top three

Method

Each leaderboard ranks brands on two sides. AI is how ChatGPT, Gemini, Google AI Overviews and Google AI Mode answer the board's buyer questions. Search is Google's top 10 results for the keywords behind those questions. All combines the two, where Search is measured.

For the AI side, each month Heralded asks every engine the same buyer questions, twice each, and reads every answer. An answer counts 0 for a brand it leaves out, 50 for a brand it names and 100 for a brand it recommends, and the Heralded Score is built from those. A brand named in at least three answers gets a score and a place.

How the leaderboards are measured