stackprint

StackprintBot

Stackprint shows what public websites are built with. To do that, a small bot reads what every visitor's browser already receives. It is polite on purpose.

What it reads
Your DNS records, the response headers of your home page, and that page's HTML. Nothing behind a login, no forms, no crawling of inner pages.
How it identifies itself
User-Agent: StackprintBot/0.1 (+https://stackprint.pages.dev/bot)
How often
Once per scan someone asks for, and on a schedule of every 7 or 30 days for sites people look up. Never more than one request to your home page per scan.
How to stop it
Add “User-agent: StackprintBot” and “Disallow: /” to your robots.txt. We check it before every fetch and stop at once.
What we keep
The specific header, DNS record or line of HTML that proves a fact, with the time we saw it. Never the full page.