About LaunchGradedBot.
The crawler behind every LaunchGraded scan. It only runs when someone submits a URL, and it identifies itself.
What it does
When someone submits a URL, LaunchGradedBot loads that one page in a headless browser the way a first-time visitor would, reads its HTML and metadata, fetches your robots.txt, and makes one request to a random path to check you return a real 404. Google's PageSpeed Insights runs Lighthouse separately with its own crawler.
It never logs in, submits forms, follows links across your site, or reads anything behind authentication. It downloads at most 10 MB per page and gives up after a fixed time.
How it identifies itself
Every request carries this User-Agent:
Mozilla/5.0 (compatible; LaunchGradedBot/1.0; +https://launchgraded.com/bot)
Blocking it
LaunchGradedBot respects robots.txt. To stop it scanning your site, add:
User-agent: LaunchGradedBot Disallow: /
A scan of a site that disallows us stops immediately and tells the person who requested it that the site owner has opted out.
Allowing it
If your robots.txt blocks all crawlers by default but you want to be scored, add an explicit allow:
User-agent: LaunchGradedBot Allow: /