§Tools · free, no sign-up
Small tools for honest pages.
Things we built for our own work and made public. Each does one job, gives the same answer every time, and tells you what it can't see.
01Schema drift checker
Second Copy
Paste a URL. It validates the page's structured data against schema.org, compares it with what a reader can see, and shows every author, date, FAQ, price or rating where the two disagree.
Check a page →02AI visibility checker
Guest List
Paste a URL. It checks whether ChatGPT, Claude, Perplexity and Google's AI can reach and read the page: robots.txt crawler by crawler, firewalls, rendering, llms.txt and more.
Check a site →
01Why tools
Built for our own work first.
Each tool starts as a step in work we do anyway. Second Copy is the first pass of the schema audit we run before we touch a site; we wrote up the method in Your schema markup is a second copy of the page. When a step is useful on its own, we publish it.
Free, no sign-up
Paste, run, read. No account, and no email gate in front of the results.
Same input, same answer
Checks are written in code, not guessed by a model, so every finding points at evidence you can verify.
Says what it can't see
Every tool lists its limits next to its results, so a clean result means what it says.
Doesn't keep what you check
Pages aren't stored, and our analytics record that a check ran, never which URL.
02Questions
About the tools
- Are the tools free?
- Yes. No account, no trial, no paid tier. A captcha keeps automated traffic out, and each visitor gets a fair number of runs every few minutes.
- Why does a software studio give tools away?
- Because a tool shows how we work better than a pitch does. If one finds a problem you'd rather not fix by hand, that's the conversation we're good at.
- Can you build a tool like this for our team?
- Yes. Internal tools and automated checks like these are custom systems work. Tell us what you'd want it to check.