I keep things simple and focus on the headers and SSL side. For ensuring proper headers sent https://securityheaders.com For ensuring SSL/TLS is set high enough https://www.ssllabs.com/ssltest/ Answer from rjhancock on reddit.com
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Pentest-Tools.com
pentest-tools.com › home › website scanner
Highly Accurate Website Scanner | Try a Free Vulnerability Scan
February 26, 2026 - The best free website security scanner is the one you can rely on and that is developed and maintained by a trustworthy company with transparent expertise and strong cybersecurity experience. We take pride in offering 2 free scans every day for our proprietary Website Vulnerability Scanner on our cloud platform, as well as for many of our 20+ security testing tools on Pentest-Tools.com.
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HostedScan
hostedscan.com › openvas-vulnerability-scan
OpenVAS Online Scan - HostedScan Security
HostedScan makes it easy to run OpenVAS and other industry-standard vulnerability scanners through an online dashboard. More than just the scanners, our platform also includes all the reporting and management features required to set up a compliant ...
Discussions

Suggestion Vulnerability Scanner for Web Applications
So what you are looking for are other Dynamic Application Security Testing (DAST) solutions, a testing type that is currently up for debate in Application Security in terms of its usefulness. OWASP maintains a list of commercial, free and freemium solutions: https://owasp.org/www-community/Free_for_Open_Source_Application_Security_Tools More on reddit.com
🌐 r/AskNetsec
20
14
November 14, 2023
What's the best (Free) vulnerability scanner
Well Nessus has a free version, but that is only for 1 personal machine (lab like environment). More on reddit.com
🌐 r/Kalilinux
11
6
July 22, 2021
Looking for Guide for Vulnerability Scan / Assessment & Pentest for (Smart) Home Network

Take a look at openvas

More on reddit.com
🌐 r/homelab
15
26
April 6, 2019
Recommended vulnerability scanner? : k12sysadmin
Any recommendations for vulnerability scanners? We need something that can scan both Windows and OS X. Linux would be a bonus. Preferably... More on reddit.com
🌐 r/k12sysadmin
February 26, 2021
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Cyberchief
scan.cyberchief.ai
Cyber Chief Web Application Vulnerability Scanning Tool
Cyber Chief Express Scanner
Free website vulnerability scanner to fix glaring security vulnerabilities in security configurations in minutes A free web application vulnerability scanning tool that provides quick security assessments, instant feedback, and detailed fixes, including code snippets. An excellent tool for quick vulnerability assessments. The instant feedback and severity-based fixes make security patching much easier.
Rating: 4.8 ​
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OWASP Foundation
owasp.org › www-community › Vulnerability_Scanning_Tools
Vulnerability Scanning Tools | OWASP Foundation
Free for Open Source Application Security Tools - OWASP page that lists the Commercial Dynamic Application Security Testing (DAST) tools we know of that are free for Open Source · http://sectooladdict.blogspot.com/ - Web Application Vulnerability Scanner Evaluation Project (WAVSEP)
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Hoststud
hoststud.com › home › resources › others
Free Online Tools to Scan Website for Vulnerabilities & Malware | Web Hosting Forum - Review - Community & Resources
September 16, 2017 - Netsparker Cloud : Netsparker Cloud scans your Website for over 25 Very Critical Vulnerabilities. Netsparker Cloud is free for Open Source Project and one can also request for the trial varsion to run the Website Scan.
Find elsewhere
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Hackertarget
hackertarget.com › home
28 Online Vulnerability Scanners & Network Tools
June 19, 2012 - Online Vulnerability Scanners to Identify Vulnerabilities and Map the Attack Surface. 28 Trusted Security Scanners and Free Network Tools.
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ImmuniWeb
immuniweb.com › websec
Website Security Test | ImmuniWeb
2 days ago - Free online tool with PDF report · Web Security Vulnerabilities Scan · AI Bot Protection Test · HTTP Security & Privacy Headers Test · DNSSEC Configuration Test · GDPR & PCI DSS Compliance Test · Content Security Policy (CSP) Test · Free online tool with PDF report ·
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PortSwigger
portswigger.net › burp › vulnerability-scanner
Burp Scanner - Web Vulnerability Scanner from PortSwigger
Burp Scanner is the industry's gold standard dynamic web vulnerability scanner. Start vulnerability scanning today with a free trial of Burp Suite.
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Snyk
snyk.io › website-scanner
Website Scanner | Website Security Check for Free | Snyk
Snyk provides free, curated interactive lessons to help developers navigate and expand their own security education. ... Find and automatically fix vulnerabilities in your code and open source dependencies with Snyk. Web vulnerability scanners scan application/website code to find vulnerabilities that compromise the application/website itself or its back-end services.
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ZeroThreat
zerothreat.ai › free-vulnerability-scanner
Free Vulnerability Scanner | Free Web App & API Vulnerability Scanning Tool
December 17, 2025 - ZeroThreat offers a free vulnerability scanner for web apps and APIs which detects security flaws instantly and strengthens your cyber defenses.
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UpGuard
upguard.com › webscan
Free Website Security Scan | UpGuard
Enter a URL below for a free security assessment of that website.
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DNSstuff
dnsstuff.com › home › top 15 paid and free vulnerability scanner tools
Top 15 Paid and Free Vulnerability Scanner Tools - DNSstuff
December 22, 2020 - Spoiler alert: Network Configuration Manager stands out as my pick for best overall tool, as it offers not only important monitoring insights but also a way to fix configuration issues quickly across mass devices. My top pick for a free vulnerability scanner is Wireshark, a well-known and popular option, for good reason.
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Intruder
intruder.io › use-cases › dast
Web Application Vulnerability Scanner | Try for free
Find vulnerabilities and protect your web apps. Easy to use and simple to understand. Trusted by thousands of companies worldwide. Get started for free today.
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Qualys
qualys.com › community-edition
Community Edition: Free Qualys Security Platform
Qualys Community Edition offers free, cloud‑based security tools to discover assets, assess vulnerabilities, and monitor web apps.
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National Cyber Security Centre
ncsc.gov.uk › guidance › vulnerability-scanning-tools-and-services
Vulnerability scanning tools and services | National Cyber Security Centre
January 19, 2021 - It’s important that these are identified and recorded (ideally in an asset register) so that the most appropriate type(s) of vulnerability scanner can be sought. Many vendors charge for their scanning services on a ‘per asset’ basis, so establishing an accurate idea of asset numbers is critical in estimating cost prior to procurement. This can be achieved with the help of (often freely available) port scanning tools to find active hosts on your network.
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Acunetix
acunetix.com › online-vulnerability-scanner
Online Vulnerability Scanner – Website Security Scan | Acunetix
1 week ago - A vulnerability scanner automates many security checks for continuous testing, while penetration testing (pentest) is typically manual and more targeted. Acunetix can scan websites, web applications, APIs, and SaaS platforms that are accessible online, including authenticated areas. Yes. Acunetix provides reporting, integrations, and dashboards to track and remediate vulnerabilities over time. Acunetix does not offer an instant free scan tool, but you can request a demo or guided security assessment to see how it works.
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ZeroThreat
zerothreat.ai › blog › top-10-free-vulnerability-scanners
Top 10 Free Vulnerability Scanners in 2026
December 19, 2025 - Discover the top 10 free vulnerability scanners for 2026 and how to choose one that fulfils your cybersecurity requirements to enhance your security posture!
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HostedScan
hostedscan.com
A better vulnerability scanner
Online automated vulnerability scanner to secure firewalls, servers, web applications, and apis. Test our free forever version.