RangerCheckA free security check that finds what your app leaks.
RangerCheck reads your app from the outside and finds what shipping fast leaves exposed: a key in your front-end, a public source map, a missing protection. Plain English, with the exact fix for each one.
Free, and no account needed.
We check, from the outside
We read what your app already serves to any visitor: your front-end code, your source maps, your response headers. No login, nothing touched.
We tell you, plainly
You get a clear report: what we found, what it means for you in normal words, and exactly where it is. Privately, to you first.
We help you fix it
Every finding comes with a specific fix. Turn on monitoring and we keep watching, so the next thing you ship stays clean too.
What RangerCheck looks for
Exposed keys
API keys and secrets accidentally shipped in your front-end code, where anyone can copy them.
Public source maps
Source maps that hand your app's original code and structure to anyone who looks.
Open database rules
Signs that your database can be read or written by anyone, because a protection was left off.
Missing protections
Security headers that block common attacks, and whether yours are set.
Free to check. Monitoring when you want it.
The check
Free
Get the full report and every fix. No account, no card. Works on any app you own.
Run a free checkMonitoring
$39/mo
We re-check your app every day and message you the moment something new is exposed. So the next thing you ship stays clean without you thinking about it.
Start after your first check