Free tools by NexaSphere
Small tools that answer one question well. Run them in your browser, with no account and no signup.
Can AI actually read your site?
Paste a domain and see whether the 14 crawlers behind ChatGPT, Claude, Perplexity, Gemini and Apple Intelligence are allowed to read it. Most blocking is accidental: a security plugin, a CDN bot rule, or a robots.txt copied from a template.
Run the checkWhat we track, exactly
The tools are free. Here is everything this page measures, so you can decide for yourself.
Visits and clicks are counted
This site runs Umami, a self-hosted analytics tool, to count page views and button clicks. Umami sets no cookies and does not build a profile of you.
Your domain is not saved
The crawler check reads the robots.txt file of the domain you enter and shows you the result. We do not store the domain.
One affiliate script
Every page also loads the Lemon Squeezy affiliate script, which records a referral if you arrive through an affiliate link.
Want to see more?
The rest of what we make, free and paid, is on the products page.