
VulnScan
Free website security audit grade in 10 seconds
What it does
Scan your website for vulnerabilities in seconds. Free security grade (A-F), subdomain discovery, and attack surface analysis. No signup needed. Trusted by 2,300+ security team. Enter any domain and get an A-F security grade instantly. Checks subdomains, live hosts, and technology stack. No signup needed. Paid reports include vulnerability details, OWASP mapping, and remediation steps.
Does the same job
all alternatives →


SecureWatchJul 2026 · securewatchonline.com · ▲4Website security scanner — 60 seconds, 75+ tests + features
- WSWeb Security Scanner - Can Your Site Score a 100%?2013 · ▲7
http://webscanner.tk/quickscan/ Hi! I made this project over the couse of a week to help teach myself more about Django and web app development. I am studying computer security in school and web security is one of my passions. It is a tool that helps web developers ensure that they have implemented helpful security mechanisms like HTTPOnly flags, X-Frame-Options, etc. There are hundreds of tools that offer to scan websites for things like cross-site scripting, mySQL injection, etc. This tool simply looks for information that is available via one or two GET requests (the headers, protocols,…
More dev tools this month
the category →



The first open-source price index for GPU compute
Dev tools · 10d ago · getcomputable.com

OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 2d ago · opentrailpaper.com

Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com
Launched alongside, March 2026
the whole month →

Switch from ChatGPT to Claude with import memory feature
AI · Mar 2026 · claude.com


