Getting Started with Web Application Security Testing Using Online Tools

Security must be a priority from the first phase of the development of a web application. In fact, not only do companies place little importance on security testing, some even exclude it altogether. It is important to implement security in the design and testing of your website, as well as making sure that you are using an up-to-date SSL certificate and following best practices for password protection.

In this article, we’re going to explore how security is implemented in web applications and provide some examples of online website scanners so you can get started right away without any complex installation or configuration.

What is the web application security test?

Web application security testing is the process of identifying and mitigating vulnerabilities in web applications. These flaws can be exploited by attackers to gain access to critical information or take control of the program. Security should be a priority from the first phase of web application development, and it is important to implement security in your website design and testing.

Why is web application security testing important?

Since most businesses operate through their Internet applications, performing effective web application security testing is essential. If these systems are not secure, they can represent a major risk for the company and its customers. Any vulnerability in these online applications can be exploited by hackers to gain access to sensitive information or take control of the system.

Despite the fact that many companies are aware of the importance of testing their applications online, they frequently avoid doing so as it requires the hiring of an expert and comes with additional expense.

How is security implemented in an organization’s system?

Security is often implemented at three levels:

Internet Security – Firewall, Secure Socket Layer (SSL) certificates and data encryption between server and client.

Server level security – The web application’s firewall should be updated regularly to protect against vulnerabilities as they are discovered. Also make sure that a password policy has been in place for all accounts and that the passwords are complex.

Application Security – This is where security testing should be done to find vulnerabilities in your web application before attackers exploit them. We will discuss some online web application scanners later in this article so that you can easily start security testing right away without any installation or configuration required.

In addition, involve the following security practices, as appropriate:

  • Validation and sanitation of entries
  • Application firewalls
  • Web application proxy
  • Secure coding practices
  • Database security
  • Up-to-date SSL certificates
  • Password protection
  • Two-factor authentication

6 online web application vulnerability scanners

  1. Astra vulnerability scanner – Astra’s Vulnerability Scanner comes with an extremely user-friendly dashboard that displays live results of the vulnerabilities found. Its scanner runs over 2,500 test cases and verifies compliance with all major security standards such as SANS, PCI, OWASP, ISO, etc.
  2. ImmuniWeb – ImmuniWeb is another popular website security scanner. They are known to check sites for standards and compliances such as PCI DSS and GDPR.
  3. Snyk – Snyk has integrated with a number of leading developer tools, including IntelliJ IDEA and GitHub, allowing you to import and analyze your own code for vulnerabilities. Based on the analysis, it offers context, prioritization and remediation.
  4. Detect – It is fully supported by ethical hackers and provides automated security and asset monitoring to discover over 1,500 vulnerabilities. Its vulnerability analysis capabilities include OWASP Top 10, Amazon S3 Bucket, DNS misconfigurations, etc.
  5. Sucuri – Sucuri is a well-known free malware detection software and security scanner. You can run a quick malware check, test injected SPAM, and check blacklist status. It also helps to clean and protect websites from online threats.
  6. Probably – Probely is a tool primarily designed for developers that allows them to be more autonomous when it comes to security testing. Its API-first development method ensures that all new features will initially be available on the API version of the service. It offers several pricing plans, including a free one with limited scanning capacity.


The tools and techniques described in this article provide a good foundation for getting started with web application security testing. Plus, most of these tools are free and work well for performing quick scans on demand.

Keep in mind that web application security should be an ongoing process. Therefore, while a free online scanner is a great way to start testing, it shouldn’t be used as a permanent solution. Consider investing in a commercial web application security tester or try an open source tester.

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