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What can a stranger see on your site?

Real explanations of what you expose without meaning to, what an attacker does with it, and the one-line fix for each. No jargon for its own sake, no scare tactics, just what's actually reachable from outside.

The secrets hiding in your JavaScript

API keys, tokens, and credentials that shipped to the browser by accident.

12 articles
.env

The files you forgot you deployed

The .env, the backup, the .git folder anyone can download with a URL.

15 articles

What an attacker sees before they touch your site

Everything an outsider learns about you without sending a single malicious request.

11 articles

The admin panel you left unlocked

phpMyAdmin, Grafana, debug toolbars, and error pages open to the world.

13 articles
HSTSCSPXFO

HTTPS, TLS, and the headers that protect your visitors

Redirects, certificates, CSP, cookies, and CORS done right.

12 articles
SPFDMARCCAAMX

Email spoofing and DNS you never configured

SPF, DMARC, CAA, and the dangling subdomain someone can claim.

8 articles
react19jquery1.8CVElodash4.17

Outdated and unverified code on your pages

Old libraries with public exploits, and third-party scripts with no integrity check.

8 articles

Shipping fast without shipping holes

A founder's playbook for catching this before your first user does.

6 articles
SurfaceCheckr

We never send attack traffic. Every check reads only what your site already serves publicly.

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