Free tools
Sigzen AI publishes three free tools that need no account: a robots.txt check for the AI crawlers, a buyer-prompt generator built from the templates our audits use, and a calculator for what a point of share of answer is worth to you. Each runs on this site and stores nothing about you.
AI crawler check
Enter a domain and read, crawler by crawler, whether its robots.txt lets the bots behind ChatGPT, Gemini, Copilot and Google AI reach the site, with the deciding line.
Check a robots.txt ›Buyer-prompt generator
Pick your industry, say what you sell and where, and get ten of the questions buyers ask an AI, filled from the same templates a Sigzen AI audit starts from.
Generate prompts ›Share-of-answer calculator
Put in how many buyers ask an AI each month, your share of answer today and the share you are aiming for, and see what each point is worth in customers and revenue.
Work out the value ›
Free. Enter your domain and Sigzen AI checks how five engines answer your buyers' questions, against up to three competitors.
No account needed. Two minutes to submit; we email the full five-engine report when the check has run.