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Life & fun · alternatives · 2026

24 alternatives to SiteLock

Free website security scanner that grades any site A to F

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

  1. 1

    Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)

    2024 · v1.web-check.xyz · its alternatives →

  2. 2

    Free vulnerability scanner to secure your PHP code

    2023 · its alternatives →

  3. 3

    Scan any website for security issues in 10 seconds. Free.

    Feb 2026 · guardscan.dev · its alternatives →

  4. 4

    Toolkit to measure and track website SEO performance

    2020 · sitechecker.pro · its alternatives →

  5. 5

    Free quick website scanner

    2023 · its alternatives →

  6. 6

    Ai1 site security scanner

    2025 · ai1security.net · its alternatives →

  7. 7SA

    Sitebulb is the revolutionary website crawler for better SEO audits. Twice winner of Best Search Software Tool. Desktop & Cloud crawling without compromise!

    2017 · sitebulb.com · its alternatives →

  8. 8

    Web Security Scanning & Monitoring

    2025 · its alternatives →

  9. 9

    Free website security scanner 20+ checks, instant PDF report

    May 2026 · pulseshield.co.uk · its alternatives →

  10. 10WS

    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 →

  11. 11

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

    2020 · hostedscan.com · its alternatives →

  12. 12
    Protego▲12

    Website security scanner

    2025 · its alternatives →

  13. 13

    Website security scanner

    2025 · its alternatives →

  14. 14CF
  15. 15

    Free security scan that tells you exactly how to fix it

    Jun 2026 · its alternatives →

  16. 16

    Lock any website with a password.

    2025 · microsoftedge.microsoft.com · its alternatives →

  17. 17

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

    Aug 2026 · nivaronix.com · its alternatives →

  18. 18

    Security scanning without the enterprise price tag

    Dec 2025 · its alternatives →

  19. 19

    Security scanner for indie hackers

    2025 · its alternatives →

  20. 20

    Scan any website for security flaws in one click

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

  21. 21

    Free, sub-2s web security & DNS scanner.

    May 2026 · webaudit.in · its alternatives →

  22. 22

    Scan any website for 24 security flaws in seconds

    Jul 2026 · checkcyber.fr · its alternatives →

  23. 23

    A web tool to scan websites for common vulnerabilities

    2025 · webscan.dheerajjha.com · its alternatives →

  24. 24

    Analyze your website's security with VULNWatch

    2025 · vulnwatch.tech · 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 →