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Dev tools · alternatives · 2026

24 alternatives to Defentrium

Public website security scanner for headers and TLS

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1EY
  2. 2

    Website security scanner

    2025 · its alternatives →

  3. 3

    Free security scan that tells you exactly how to fix it

    Jun 2026 · its alternatives →

  4. 4IB

    I found it odd there wasn’t a simple web tool to scan Docker Hub images for vulnerabilities. So I built one. It’s powered by the popular open-source tool Trivy.

    2023 · containercve.com · its alternatives →

  5. 5

    Keeping your web3 interactions safe

    2023 · its alternatives →

  6. 6

    Online automated vulnerability scanner to secure firewalls, servers, web applications, and apis. Try 14 days for free.

    2020 · hostedscan.com · its alternatives →

  7. 7
    Detectify▲124

    Application security testing reimagined

    2014 · detectify.com · its alternatives →

  8. 8
    Pingkat▲72

    Continuously monitor your website's public resources

    2023 · its alternatives →

  9. 9

    This is a simple single-file python program that can find basic XSS (cross-site scripting) vulnerabilities in a target url. Most XSS discovery tools use a payload refelection strategy in which payloads are injected in url parameters and the GET response is inspected for places where the payload content is reflected. This is a very low precision XSS detection strategy because most reflection does not support execution. This program uses a different approach, and instead opens the target url in a browser, tests alert(...) payloads directly in the browser context, and listens for an alert being…

    2024 · github.com · its alternatives →

  10. 10

    I built this after seeing multiple teams accidentally ship API keys in their frontend code. The problem: Modern web development moves fast. You're vibe-coding, shipping features, and suddenly your AWS keys are sitting in a tag visible to anyone who opens DevTools. I've personally witnessed this happen to at least 3-4 production apps in the past year alone. KeyLeak Detector runs through your site (headless browser + network interception) and checks for 50+ types of leaked secrets: AWS/Google keys, Stripe tokens, database connection strings, LLM API keys (OpenAI, Claude, etc.), JWT…

    Nov 2025 · github.com · its alternatives →

  11. 11

    A web tool to scan websites for common vulnerabilities

    2025 · webscan.dheerajjha.com · its alternatives →

  12. 12

    Scan any website for security flaws in one click

    Nov 2025 · chromewebstore.google.com · its alternatives →

  13. 13

    Web Security Risk & AI authorship scanner

    Aug 2026 · vulnexa.com · its alternatives →

  14. 14

    Security scanning without the enterprise price tag

    Dec 2025 · its alternatives →

  15. 15

    Scan websites for exposed Supabase data and API leaks

    Mar 2026 · leakscope.tech · its alternatives →

  16. 16WS

    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,…

    2013 · webscanner.tk · its alternatives →

  17. 17
    Phynd▲9

    Affordable, automated vulnerability scanning—no blind spots

    2025 · phynd.io · its alternatives →

  18. 18OV
  19. 19
    Protego▲12

    Website security scanner

    2025 · its alternatives →

  20. 20

    Vulnerability scanner built for eCommerce

    Jul 2026 · kennersoft.de · its alternatives →

  21. 21

    Free website security scanner: headers, SSL, DNS, SPF/DMARC

    Aug 2026 · nivaronix.com · its alternatives →

  22. 22

    Free website security scanner that grades any site A to F

    May 2026 · its alternatives →

  23. 23

    Web 3 Security!

    2025 · linkedin.com · its alternatives →

  24. 24

    Find GDPR risks on your live site before regulators do

    Feb 2026 · securespells.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →