Alternatives
Products that do what WebSentry does
Instant A–F security grades for any website with monitoring
- 1IM
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
- 2
- 3
Free browser extension to know security score of any website
2023
- 4
- 5
- 6
- 7
- 8
Website security scanner — 60 seconds, 75+ tests + features
Jul 2026 · securewatchonline.com
- 9
- 10
- 11
- 12IB
BoringSSL and nghttp2. Matches JA3N, JA4, and JA4_R fingerprints. Supports HTTP/2, async/await, and works with Cloudflare-protected sites. Not trying to compete with curl_cffi - just a learning project that turned into something functional.
Nov 2025 · github.com
- 13
- 14
Scan any website for security issues in 10 seconds. Free.
Feb 2026 · guardscan.dev
- 15
- 16
- 17
Check any website up/down Status? SSL issues & more.
27d ago · urlwatch.io
- 18
Instantly check if a website is safe and trustworthy [free].
Oct 2025
- 19
- 20WS
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
- 21
- 22
Free website security scanner 20+ checks, instant PDF report
May 2026 · pulseshield.co.uk
- 23
- 24
Ranked by how close each launch is in meaning, then by votes. Refine with a description →