Jelle Brummans

Jelle Brummans built Flowproof and writes the articles in its knowledge base. He is part of the team at Tripel Media in Maasbree, the Netherlands, a marketing agency for strategy, branding and creative work. With Flowproof he brings SEO, structured data and how AI search engines work together in one scan with concrete advice.

Writes about: Generative Engine Optimization, SEO, Structured data, Online marketing, Webdevelopment

Articles by Jelle

• AI crawlers in robots.txt: should you block or allow GPTBot?Which AI bots drive visibility and which only collect training data? An overview of every AI crawler, a sample robots.txt and the firewall trap.8 min read
• Content that AI cites: how to write pages ChatGPT and AI Overviews pick upHow to write content that ChatGPT, Perplexity and AI Overviews cite: E-E-A-T, answer first, question headings, sources, tables, dates and authors. Checklist.10 min read
• The difference between GEO and SEO: what stays the same and what changesWhat is the difference between GEO and SEO? Find out what stays the same, what changes with AI answers and where to spend your time first.8 min read
• How AI search engines choose sources: from training to citationHow do ChatGPT, Perplexity, Gemini and AI Overviews choose sources? Learn training vs live search, query fan-out and which bot reads your site.8 min read
• GEO: the complete guide to visibility in AI search enginesWhat GEO is, how ChatGPT, Perplexity and Google AI Overviews choose their sources, and which steps make your website visible in AI-generated answers.12 min read
• How to create an llms.txt: structure, example and an honest assessmentHow to create an llms.txt: the structure set out in the spec, a full example, publishing it in the right place and what it really does for you with AI.8 min read
• Schema markup for AI: which structured data helps and how to get it rightWhich schema markup helps AI search engines understand your business? JSON-LD, sameAs, the key types, a complete example and common pitfalls explained.9 min read
• ADA compliance for European businesses with US customersDoes your European online shop need to comply with the ADA if you sell to Americans? What the law says, what is uncertain and how WCAG also covers the EAA.6 min read
• Does the European Accessibility Act apply to my business?Is your online shop covered by the European Accessibility Act? See who falls under the law, the micro-enterprise exemption and which standard to follow.9 min read
• Website accessibility: the complete guide to WCAG, the EAA and the ADAWhich accessibility requirements apply to your website or online shop? WCAG, the European Accessibility Act and the ADA explained, with a table and action plan.16 min read
• Accessible forms and checkout for online shopsHow to build an accessible form and checkout: labels, autocomplete, error messages, fieldsets, target size and logging in without puzzles, with code examples.8 min read
• Testing website accessibility: automated vs. manualHow to test your website's accessibility: what axe-core, Lighthouse and WAVE find, a step-by-step manual testing routine and how often you should test.8 min read
• How to write an accessibility statement (with template)How to write an accessibility statement: what the EAA and public sector rules require, where to place it on your site and a fill-in template for your website.10 min read
• The 10 most common accessibility errors (and how to fix them)Low contrast, missing alt text, fields without labels: the ten accessibility errors websites make most often, with the WCAG criterion and the HTML fix for each.8 min read
• WCAG 2.2 AA explained for marketersWhat WCAG 2.2 AA asks of your website: the levels, the four principles, the nine new criteria and which requirements you affect as a marketer or editor.9 min read
• Glossary: GEO and website accessibility terms explainedFrom AI Overviews and llms.txt to WCAG, the EAA and alt text: GEO and website accessibility terms explained clearly, each with a short definition.13 min read