Visible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot nowVisible Amsterdam: Join us on September 3 for an exclusive afternoon exploring the future of AI Search. Request your spot now
Promptwatch Logo
Klaas Foppen

Klaas Foppen

Co-Founder & CTOKlaas is the Co-Founder & CTO of Promptwatch, focusing on AI Search Optimization with extensive experience in software engineering and AI.

What Is Generative Engine Optimization (GEO)?

GEO means structuring content and brand presence so AI systems like ChatGPT and Gemini cite you inside a zero-click answer. Here's the definition, its origin, and how to start.

Klaas FoppenKlaas Foppen

The Complete Guide to LLM Crawler User Agents: Who's Reading Your Website in 2025?

AI crawlers now visit 1 in 4 websites daily. Learn which bots are reading your content, why it matters, and how to optimize for maximum AI visibility.

Klaas FoppenKlaas Foppen

LLMs.txt Is Largely Ignored: Why It Has No Impact on AI Search or GEO (For Now)

Despite the hype, llms.txt is being crawled by some bots but not used by major AI search engines. Here’s the evidence, Google’s statements, and what to prioritize instead.

Klaas FoppenKlaas Foppen

Inside ChatGPT's Search Engine: What 5,000 Prompts Reveal About How AI Really Searches

We analyzed 5,000+ real ChatGPT prompts that triggered web searches to uncover the patterns, preferences, and strategies that ChatGPT uses when it needs to find information online.

Klaas FoppenKlaas Foppen

Why You're Invisible in AI Search (and What to Do About It)

Your focus on Google rankings might be blinding you. Your competitors are already showing up in ChatGPT, Perplexity, and Claude – are you?

Klaas FoppenKlaas Foppen

Why Generative Engine Optimization (GEO) Matters More Than Ever

As AI tools become go-to sources for information, optimizing your brand presence for generative engines is now essential.

Klaas FoppenKlaas Foppen

Be the brand AI recommends

Monitor your brand's visibility across ChatGPT, Claude, Perplexity, and Gemini. Get actionable insights and create content that gets cited by AI search engines.

Promptwatch Dashboard