Free Tools to Scan Website Security Vulnerabilities

Cyber-attacks are a common occurrence that can affect any website. Unfortunately, most business owners often end up paying a lot of attention to the various elements of their site such as Web Design, Content and SEO, but they ignore the need for a ‘dedicated security monitoring service’ until it is late.

Under no circumstances, should web security ever be underestimated.  While following basic security measures can work to a certain extent, they are not enough to get rid of all those website vulnerabilities.

What is a vulnerability scanner?

Our archetypical vulnerability scanner is a potent and specialized tool that will give you an extra pair of eyes so that you will be able to monitor your website and receive alerts any time the tool detect any potential threats to your site. Such tools can scan the website and the different networks for many glaring security risks and loopholes. Apart from that, they can also do the following:

  • Define the vulnerabilities
  • highlight these vulnerabilities
  • Make sure that you know which ones need to be patched on a priority basis
  • identify remedial actions to stop them

However, one of the best things about these effective website scanning tools is that they do not cost even a cent. Yes, you heard it right. They are free. Let us look at a few of the more popular ones that will not only help you automate the overall detection of such vulnerabilities but they also guide you regarding any security vulnerabilities that you may have to face thanks to the digital transformation.

Remember, literally millions of websites are hacked every day. So the best possible way to make sure that ‘your’ website is secure is to get a reliable vulnerability checking tool, as soon as possible. But there is no need to spend or rather splurge on such checking utilities, especially since you have already splurged on different premium grade antivirus software.

Let us check out a few such free online utilities that you can use to ferret out any vulnerabilities in your site and furthermore to take remedial actions to ensure that they remain secure at all times.

#1. Scanurl

ScanurlScanurl’s unique online scanner tool is as simple as it can get. Basically, the tool itself will provide the user with a few important details on his site’s security. These details include:

  • Whether the site has passed the Google ‘Safe Browsing test’
  • If and whether anyone has marked your site as “unsafe”
  • Whether PhishTank has a file on your website
  • Whether the global ‘Web of Trust’ has acquired any negative ratings on your website

#2. Quttera

QutteraThis is one of the most popular free website security scanners available today. This is partly because Quttera has a whole range of dedicated malware checking tools that are at its disposal for checking your website for various auto-generated spyware, malicious files, iFrame, Trojans, external links, several types of suspicious files and your site’s own blacklist status by Google or any other blacklisting authorities.

#3. SiteGuarding

SiteGuardingThis is a free scanning tool that allows the user to audit the site’s security. The SiteGuarding tool intelligently scans the domain itself for any possible defacements. These may include malware, Cross Site Scripting or XSS files, IP Cloaking, well-hidden iFrames, website blacklisting, website firewall, links and injected spam and social engineering attacks too. A great benefit of this website scanning tool is its easy-to-understand interface.

#4. WPScans 

WPScansThis tool basically checks your site with intelligent ‘in-built’ algorithms. This is a WordPress specific tool that will scan your site for any known bugs. It can do so because the bugs have already been indexed in the WPScans‘ own vulnerability database. As of now the database currently boasts of an approximate 4,000+ reported vulnerabilities and many otherwise common mistakes that may have been made during the tool’s installation process

#5. ScanMyServer 

ScanMyServerThe ScanMyServer tool (as the name implies) provides one of the most comprehensive reports possible for dealing with a large variety of security tests like Cross Site Scripting, Source Disclosure, PHP Code Injection, SQL Injection, Blind SQL HTTP Header Injection, and similar vulnerabilities.

#6. MalCare 

MalCareThe MalCare is a complete WordPress security solution. It comes well equipped with its own “One Click Automatic Malware Cleaner”.  Apart from that, it also has its very own early malware detection technology, which can help in the blacklisting’s prevention of the website (or websites) by the large and popular search engines such as Google. It can even help to prevent the site from being blocked by different web hosts too.

Malcare can detect malware that goes undetected. It can focus on the innate accuracy of its malware identification feature while reducing the total number of false positives too.

#7. sitecheck.sucuri

sitecheck.sucuriThe WordPress security tool Sucuri is pretty well known amongst knowledgeable circles for its timely vulnerability reports that it compiles on the whole WordPress ecosystem. That is both its plugins and themes. Here, it pertinent to note that Sucuri is also equipped with a site scanner for checking vulnerabilities online. In fact, Sucuri secures the site by scanning for Malware, Injected Spam, Online site defacements, and Website Blacklisting.

Apart from the above, it also uses its built-in website firewall to scan through various scripts and (associated) links. This enables it to check whether the site has been blacklisted on any of the other more common and popular services such as:

  • ESET
  • Google Safe Browsing
  • Phish Tank
  • Yandex (via Sophos)
  • Opera Browser
  • Sucuri Malware Labs Blacklist
  • Site Advisor
  • Spam Haus DBL


The somewhat incongruously named checks the site for important WordPress response headers that contain detailed PHP version info, readme.html meta tags, the list of usernames to quote but a few of its more useful functions. Apart from that, it also checks for any display of unnecessary information on install. PHP files (via HTTP), browsable uploads folder, failed login attempts, accessible upgrade files via HTTP, the edit URI links present in the page header, and Windows Live writer link that may be present in the page’s header.

#9. Virus Total

This nifty little online tool is owned by Google’s own parent company Alphabet and it painstakingly analyzes multiple websites to determine if these sites have been affected by any malicious software. Ultimately, it aggregates and also runs a vast range of website scanning and antivirus tools and lets you create your very own security report for any specific website. Ultimately it can also check a single file or even a component of the website on a standalone basis, or the entire website, for any trace of malware.

#10. Web Inspector

The Web Inspector behaves exactly like a browser. In this way, it can use various other security tools and plugins to identify, to resolve, and terminate all threats to the site.  Apart from that, it can update the site SSL certification. However, this is not a free software.

#11. cWatch Site Scanner

cWatch Site Scanner is adept at the identification of risks, outdated vulnerable software,  blacklist status, threats, etc., on the website. It also helps the users repair a hacked website. This security tool is also complete freeware.

#12. Qualys SSL Labs

SSL Labs’ Qualys examines the overall configuration of the web server on which the site is based. It uses its own grading system such as A+, A, A-, B, C, and so on to ensure the deployment of SSL/TLS best practices.


This tool actively performs fairly simple scans while also showing the site’s Google Page Rank as well as  ‘Whois’ information. The tool comes with its own setting panel so that the owner can fine tune and can tweak it as and when desired.


This tool performs the following functions:

  • It is a standalone intrusion detection system,
  • Works on JavaScript related  Scripts
  • Blacklists, and
  • HTTP Transactions

#15. WP Plugins

This plugin scans the entire WordPress website for many of the more common pitfalls and displays the message.

Apart from that, it also has a handy option that can easily alert the user you whenever his website is vulnerable. The WP plugin can easily be availed by subscribing to the company’s own newsletter.


Always remember the age-old adage that “prevention is always way better than the cure”. The above online software tools are not an entirely complete list as such, but they are a step in the right direction. Apart from using these, you can also take the following measure to tighten up your online security overall:

  • Always use the latest version of whichever site you use (such as WordPress for instance)
  • Don’t tweak nor mess around with the code in core  files
  • You should try to keep your plugins’ versions as up to date as possible.
  • Always try to install plugins from trusted sources

If you follow the above ideas and suggestions, the odds are that you will protect your site to a great extent. You can also read this informational secure coding training guide.

Author Bio:

Jenny Harrison is a passionate tech and lifestyle blogger. She loves to engage with readers who are seeking tech and lifestyle-related information on the internet. She is a featured blogger at various high authority blogs and magazines in which she shared her research and experience with the vast online community. Currently she is associated with cyber security consulting company Mars Technology.