40 Website Security & Malware Check Tools You Can Trust

In the digital era, as online business and transactions become increasingly common, website security has become a critical factor for every business. A good website security check tool not only helps detect security vulnerabilities, malware and misconfigurations, but also helps optimize the system and keep your website running stably and safely. Using the right tool lets you proactively prevent risks and avoid the loss of data and brand reputation. Join TOT to explore the 40 most effective website security check tools available today in the article below.

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Why is website security testing important?

According to a report by IBM Security, the global average cost of a data breach in 2024 reached USD 4.88 million, up 10% from the previous year. In Vietnam, the number of websites attacked each year keeps rising, with more than 9,000 sites falling victim in 2019 alone. These figures show that website security testing is not an option but a necessity to ensure the safety and survival of a business in the digital environment.

Regular security testing helps businesses detect and patch vulnerabilities before attackers can exploit them. It is a proactive preventive measure that helps build a solid cybersecurity system and avoid serious financial, data and reputational damage. Security testing delivers several important benefits:

• Detect security vulnerabilities: Identify weaknesses in the system, from misconfigurations to hidden security flaws that are hard to spot with the naked eye.
• Assess the level of risk: Analyze and measure the severity of each vulnerability, helping you prioritize the most critical threats first.
• Prevent attacks: Detect signs of intrusion or abnormal activity early so you can take timely countermeasures.
• Support remediation: Provide detailed reports and specific recommendations that help the development team fix issues effectively.
• Ensure compliance: Meet data security requirements under legal regulations and industry standards.

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Top 40 effective website security check tools

As cyberattacks grow increasingly sophisticated, website security testing has become a must for every business. Understanding these testing tools helps you detect and block threats before they cause damage. Below is a roundup of the 40 most effective website security scanning tools available today.

Quick overview of the top 40 website security check tools

No.	Tool	Main check type	Format	Best for	Highlights
1	Sucuri SiteCheck	Malware, blacklist, malicious code	Online	Websites in general	Fast website scanning, easy to use
2	Google Safe Browsing Diagnostics	Phishing, malware, dangerous websites	Online	Websites in general	Checks safety status according to Google
3	Quttera	Malware, Trojan, malicious code	Online	Websites in general	Analyzes source code and detects malware
4	VirusTotal	Malware, URL, blacklist	Online	Individuals, businesses	Cross-checks results from many security engines
5	SiteLock	Malware, vulnerabilities, blacklist	Online/Service	Businesses	Continuously monitors and protects websites
6	Norton Safe Web	Malware, phishing, website reputation	Online	General users	Assesses how safe a website is
7	Acunetix	DAST, XSS, SQL Injection, web vulnerabilities	Software	Businesses, pentesters	Deep automated web application scanning
8	Invicti (Netsparker)	DAST, web vulnerabilities	Software/Cloud	Businesses	Automatically detects and verifies vulnerabilities
9	Qualys Web Application Scanning (WAS)	DAST, web application vulnerabilities	Cloud	Large enterprises	Scans web applications at scale
10	Burp Suite Professional	Web pentest, XSS, SQLi, API	Software	Pentesters, security experts	A very comprehensive web testing toolkit
11	Nessus	Vulnerability scanning	Software	IT, security teams	Detects many types of system vulnerabilities
12	Wordfence	Malware, firewall, WordPress vulnerabilities	Plugin	WordPress websites	WordPress security and malware scanning
13	WPScan	WordPress, plugin and theme vulnerabilities	CLI/Online	Pentesters, WordPress admins	A dedicated WordPress vulnerability database
14	Jetpack Scan	Malware, WordPress vulnerabilities	Cloud/Plugin	WordPress websites	Automatic WordPress security scanning
15	MalCare	Malware, backdoor, WordPress vulnerabilities	Plugin/Cloud	WordPress websites	Malware scanning and incident response support
16	OWASP ZAP	DAST, XSS, SQLi, API	Software	Developers, pentesters	Free and open source
17	SQLMap	SQL Injection	CLI	Pentesters, security researchers	Automates SQL Injection testing
18	Nmap	Port, service, network security	CLI/GUI	IT, pentesters	Detects active ports and services
19	SSL Labs Server Test	SSL/TLS, certificates	Online	Websites, server admins	Very detailed HTTPS configuration analysis
20	Security Headers	HTTP security headers	Online	Developers, webmasters	Checks CSP, HSTS, X-Frame-Options…
21	Unmask Parasites	Malicious code, injected content	Online	Webmasters	Detects suspicious content on websites
22	Rapid7 AppSpider	DAST, web vulnerabilities	Software	Businesses, pentesters	Automated web application testing
23	McAfee SiteAdvisor	Website reputation, malware	Online/Browser	General users	Assesses website trustworthiness
24	IBM Application Security on Cloud	Application security, DAST	Cloud	Businesses	Cloud-based application security testing
25	WOT (Web of Trust)	Website reputation, phishing	Online/Extension	General users	Reputation-based trust assessment
26	GamaSec	Website security, malware	Online	Webmasters	Checks malware and some security issues
27	AVG Online Web Page Scanner	Malware, website reputation	Online	General users	Scans URLs to check for risks
28	Finjan Malware Scanner	Malware, website security	Online	Webmasters	Analyzes websites and malware risks
29	PhishTank	Phishing	Online	Security teams, webmasters	Checks URLs for phishing links
30	McAfee Domain Health Check	Domain reputation, security	Online	Webmasters	Assesses a domain’s security status
31	Wireshark	Network traffic analysis	Software	Network/security teams	In-depth network packet analysis
32	Qualys Free Scan	Vulnerability scanning	Online	IT, security teams	Checks some system security issues
33	TrustedSource	Website/domain reputation	Online	Businesses	Assesses a domain’s trustworthiness
34	hpHosts Online	Malware, blacklist	Online	Webmasters	Checks suspicious domains/URLs
35	Dasient Web Anti-Malware (WAM)	Website malware	Online	Webmasters	A tool that detects malware on websites
36	John the Ripper	Password auditing	CLI	Security professionals	Tests password strength
37	Arachni	Web vulnerability scanning	Software	Pentesters	A web security testing framework
38	Metasploit Framework	Exploitation, vulnerability validation	CLI/GUI	Pentesters, security researchers	Validates whether vulnerabilities are exploitable
39	CyStack Web Security	Web security, vulnerability assessment	Online/Service	Vietnamese businesses	Supports website security assessment and testing
40	Nikto	Web server vulnerabilities, misconfiguration	CLI	Pentesters, server admins	Quickly scans web server configuration and components

1. Sucuri SiteCheck

Sucuri SiteCheck is one of the tools that helps remove malware from a website quickly and accurately. It effectively finds and removes malicious code and detects suspicious pages, spam and other threats, making it a popular choice for quick, regular security checks with no software to install.

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2. Google Safe Browsing Diagnostics

Google Safe Browsing Diagnostics is a website security check tool from Google that verifies whether a website contains malware or unsafe software. The system uses data from the Safe Browsing API and is continuously updated by Google.

The tool analyzes the URLs associated with a domain and shows results for roughly the last 90 days. It relies on the Safe Browsing API, an integrated technology that analyzes sites based on Google’s website-filtering capabilities. Businesses can use it to detect risks early and avoid having browsers or Google warn their users.

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3. Quttera

Quttera  supports online malware scanning, detecting malicious JavaScript, hidden iframes and dangerous code injected into web pages. It is especially effective at finding hidden threats that many other tools may miss, including complex malware injected by hackers.

In addition, Quttera checks blacklists across many reputable databases and independently analyzes each file on the server to trace malware. After scanning, you receive a detailed report along with a list of files to review, helping you understand the location and severity of each piece of malicious code.

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4. VirusTotal

VirusTotal is a free tool that analyzes a URL or file using dozens of different antivirus engines. When you enter a website address, you can see whether the page is flagged for malware or dangerous links. Although not web-specific, VirusTotal is very useful when you want to check resources or files embedded on a website.

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5. SiteLock

SiteLock is a comprehensive security solution that includes malware scanning, a firewall, vulnerability checks and automatic malware cleanup. It also monitors websites 24/7 and sends alerts when it detects signs of an attack. It is a good fit for corporate and e-commerce websites or any platform that handles user data.

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6. Norton Safe Web

Norton Safe Web by Symantec is a solution that quickly assesses how trustworthy a website is. Users simply provide the URL to look up, and the system scans it and produces a detailed report on threats such as malware, phishing pages or other security risks. Its strength lies in combining artificial intelligence with ratings from users worldwide and the vast security database of the Norton ecosystem.

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7. Acunetix

Acunetix is a professional web application security testing tool that can detect more than 7,000 different types of vulnerabilities such as SQL Injection and Cross-Site Scripting. It generates detailed reports that show technicians exactly where a flaw is and how to fix it. Acunetix is a good fit for businesses that need to automate their security testing process.

8. Invicti (Netsparker)

Invicti, formerly known as Netsparker, is renowned for its accurate scanning and its ability to automatically verify real vulnerabilities. The software reduces false results and saves time for security teams. It suits organizations that need to automatically scan many web applications at once and generate compliance-ready reports.

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9. Qualys Web Application Scanning (WAS)

Qualys WAS provides web application vulnerability scanning and centralized risk management on a cloud platform. Beyond finding flaws, it also supports compliance reporting and recommends secure configurations. It is a good solution for large enterprises or systems with many websites that require continuous monitoring.

10. Burp Suite Professional

Burp Suite Professional is a penetration-testing toolkit used by security experts to analyze web applications. It simulates real-world attacks to identify weaknesses in the system. Burp Suite suits in-house technical teams or security testers who want to assess each website feature in depth.

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11. Nessus

Nessus is a powerful vulnerability scanner that identifies outdated software, open services and insecure configurations while checking website safety. It displays a list of risks along with severity scores. Used regularly, Nessus helps you maintain a stable server environment and minimize the risk of exploitation.

12. Wordfence

Wordfence is a popular WordPress plugin that provides a firewall, malware scanning and the ability to block suspicious logins. It also sends alerts when there is unusual behavior or an outdated plugin. It is a good choice for WordPress administrators who want to strengthen security without installing complex additional software.

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13. WPScan

WPScan is a command-line website security tool that specializes in detecting WordPress vulnerabilities in plugins, themes and the core. Its database is continuously updated so you can quickly spot new risks. Although it is a technical tool, it is very effective for checking a WordPress website before publishing or updating it.

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14. Jetpack Scan

Jetpack Scan is a security feature built into the Jetpack plugin for WordPress. It automatically scans for malware and sends notifications when it detects abnormal files. If you already use Jetpack for backups or optimization, enabling Scan lets you consolidate security management on a single platform.

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15. MalCare

MalCare is a WordPress security solution that detects, cleans and blocks malware in just a few clicks. Its cloud-based scanning does not affect website speed. MalCare also includes a firewall and hardening features to strengthen your overall defenses.

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16. OWASP ZAP (Zed Attack Proxy)

OWASP ZAP is a free, open-source tool that supports both automated scanning and manual testing of web applications. It is widely used by the security community thanks to its friendly interface and flexible extensibility. It suits small and medium-sized businesses that want to set up an affordable security testing process.

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17. SQLMap

SQLMap automates the process of detecting and exploiting SQL Injection vulnerabilities in web applications. It offers many options for safely testing database security. Although highly technical, SQLMap is a useful tool for development or testing teams that want to verify the safety of their systems.

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18. Nmap

Nmap is a popular network scanner that detects open ports, running services and the server’s operating system. It helps you understand your infrastructure so you can remove unnecessary services. Nmap is very useful for mapping systems and assessing a website’s attack surface.

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19. SSL Labs Server Test

SSL Labs Server Test evaluates a website’s SSL/TLS configuration and grades it against current security standards. The report provides detailed information on protocols, encryption algorithms and certificates. By following its recommendations, you can improve your HTTPS security score and increase user trust.

20. Security Headers

Security Headers is a website checker that inspects HTTP response headers such as HSTS, CSP and X-Frame-Options. These headers play an important role in preventing XSS and clickjacking attacks. Applying the correct configuration from the tool’s recommendations makes your website more resilient against common threats.

21. Unmask Parasites

Unmask Parasites is an online website security tool that detects hidden code, malicious iframes or spam links on a website. It is very useful when you suspect your site has been attacked but do not yet know the cause. The scan results pinpoint where injected code is located, helping administrators clean up the system quickly.

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22. Rapid7 AppSpider

Rapid7 AppSpider is web application security testing software that simulates user behavior and scans entire business workflows. It can detect vulnerabilities in both the web interface and the API. It suits organizations that want to integrate security testing into their software development cycle.

23. McAfee SiteAdvisor Software

McAfee SiteAdvisor helps evaluate a website’s reputation and trustworthiness based on data from McAfee’s security systems. The results show its safety status, helping businesses track the impact on their brand. It is a useful tool when you need to manage multiple websites or online advertising campaigns.

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24. IBM Application Security on Cloud

IBM Application Security on Cloud is a cloud-based solution for testing web and API security. It provides detailed reports and supports enterprise risk management and security compliance. This solution suits large organizations that need to control many applications within the same system.

25. WOT Web of Trust

WOT Web of Trust rates website reputation based on community feedback and analytical data. It provides a scoring scale that lets you track a site’s trustworthiness over time. Maintaining a high rating helps improve your brand image and increase conversion rates.

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26. Gamasec

GamaSec is a web security scanning platform that specializes in finding web application vulnerabilities, malware and attack risks, helping websites, especially small and medium-sized businesses, strengthen their cybersecurity.
The platform can automatically scan and analyze a website’s entire structure, going through files, directories and endpoints to detect common vulnerabilities such as XSS, SQL injection and code inclusion.

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27. AVG Online Web Page Scanner

AVG Online Web Page Scanner is a website safety checker developed by AVG, a globally renowned security brand known for its antivirus and device protection solutions. The tool lets users enter any URL to quickly analyze whether the page contains malware, hidden malicious code, signs of an attack, or appears on the blacklists of major security systems.

28. Finjan Malware Scanner Free Online Tool

Finjan Malware Scanner is a free online malware scanning tool built on the technology of Finjan, one of the pioneers in cybersecurity and web protection since the 1990s. It lets users quickly analyze a URL to detect threats such as malware, spyware, trojans, malicious code embedded in the source, or dangerous scripts that could harm visitors.

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29. PhishTank

PhishTank is a free community platform dedicated to collecting, verifying and providing data on phishing websites. Operated by Cisco Talos, PhishTank lets users submit suspicious URLs for the community to verify whether they are phishing pages. Thanks to its crowdsourcing mechanism and open database, PhishTank has become one of the largest anti-phishing data sources in the world, used by many browsers, security software products and cybersecurity services. With free URL checking and an integrated API, it helps businesses, marketers and website owners quickly assess link safety, detect brand-impersonation pages and prevent user scams. 

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30. McAfee – Domain Health Check

McAfee – Domain Health Check is a free online tool that quickly assesses the overall “health” of a domain using safety and reputation criteria on the Internet. It checks whether a domain is on a blacklist, shows signs of a malware attack, has been taken over by a botnet or is linked to spam activity.

McAfee uses a global threat database to analyze the behavior, trustworthiness and security risk of a domain and issue timely warnings. With a simple interface and fast results, the tool is especially useful for website owners, marketers, SEO specialists or small businesses that want to monitor the security status of their domain.

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31. Wireshark

Wireshark is a powerful open-source network protocol analyzer that lets users monitor and analyze network traffic in real time. It helps detect abnormal activity, data leaks or signs of a network attack by capturing and decoding the packets traveling through the system.

Wireshark is especially useful for security experts who want to deeply analyze attacks, check network configurations or verify the security of communication protocols.

32. Qualys Free Scan

Qualys Free Scan is a free online security scanning tool provided by Qualys, one of the leading companies in security services and vulnerability management. It lets users quickly scan websites, servers or IP addresses to detect common security vulnerabilities, misconfigurations, weak SSL/TLS or other issues that could be exploited by hackers.

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33. TrustedSource

TrustedSource is a website reputation and safety rating service developed by McAfee, designed to help users and businesses determine how trustworthy a domain or IP address is. It analyzes millions of data points from sources such as web history, user reviews, malware/phishing reports and cyber threats to produce a reputation score for a website. TrustedSource is widely used by browsers, email security systems, firewalls and web-filtering tools to warn about or block dangerous pages before users visit them. 

34. hpHosts Online

hpHosts Online is a free service that provides a database of malicious, phishing, malware, spyware and adware websites. It lets users look up a URL or domain to check whether the site is blacklisted, so they can assess its safety before visiting or sharing the link. Built on community and open data, hpHosts Online regularly updates its list of dangerous domains, helping protect individual users, small businesses and website administrators from the risks of malware, phishing or scam websites.

35. Dasient Web Anti-Malware (WAM)

Dasient Web Anti-Malware (WAM) is a professional website security solution designed to detect and block malware on websites before it harms visitors or damages brand reputation. It combines behavioral analysis and static analysis to detect malware, spam, backdoors or malicious scripts embedded in a website’s HTML, JavaScript or PHP.

36. John the Ripper

John the Ripper is the most popular open-source password-cracking tool today, helping test password strength and detect weak passwords in a system through dictionary attacks, brute-force and rainbow tables. It supports many different encryption formats, from operating systems and databases to web applications. Its strengths are fast processing speed, cross-platform operation (Linux, Windows, macOS) and being pre-installed in Kali Linux.

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37. Arachni

Arachni is an open-source web application security testing framework developed in Ruby, with the ability to automatically scan for common vulnerabilities such as SQL Injection, XSS, CSRF and many others. It stands out for its fast scanning speed thanks to a multi-threaded architecture and its high configurability through add-on modules. Arachni offers a friendly web interface and detailed reports, making it easy for users to track the scan process and analyze the results. 

38. Metasploit Framework

Metasploit Framework is one of the most powerful open-source penetration testing platforms available today, providing thousands of exploits, payloads and modules to simulate real-world attacks on a system. It helps security experts assess a website’s defensive capabilities, identify critical vulnerabilities and test the effectiveness of protective measures.

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39. CyStack Web Security

CyStack Web Security is a website security platform developed by CyStack, offering a comprehensive solution that ranges from vulnerability scanning and malware detection to continuous monitoring and early warnings. 

The tool is specifically designed for the Vietnamese market, with Vietnamese-language support and compliance with local legal regulations. CyStack Web Security integrates AI and machine learning to detect zero-day threats, and it provides 24/7 customer support in Vietnamese. 

40. Nikto

Nikto is an open-source web server security scanner that specializes in detecting dangerous configurations, outdated software, sensitive files/directories and more than 6,700 potential security vulnerabilities. Written in Perl, Nikto can quickly scan many web servers at once and generate reports in various formats. It is especially useful for quickly checking basic security issues before deploying a website or after a system update. 

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Frequently asked questions about website security check tools

What is a website security check tool?

It is software or an online service that scans a website for malware, vulnerabilities and weak configurations. The goal is to detect risks early so administrators can plan timely fixes. These tools work independently or as part of a website management system.

Are there tools that check user passwords?

Some solutions such as Wordfence or MalCare offer features that detect weak passwords and abnormal login activity. However, most tools focus on protecting the application layer and checking system configuration, and do not directly access the user password database.

What is the most effective way to detect security vulnerabilities?

The best approach is to combine automated scanning tools with manual testing. Automated scanning quickly finds common flaws, while manual testing deeply analyzes critical areas. In addition, keep your software, plugins and server operating system updated regularly.

How do you check website security online?

You can go to tools such as Sucuri SiteCheck, Security Headers or SSL Labs and then enter the URL you want to check. When you get the results, fix the serious issues first and re-check periodically to maintain a stable state.

Website security is a continuous process that helps businesses maintain performance, reputation and user experience. Combining several website security check tools such as Sucuri, Acunetix or Wordfence helps you detect and address risks more comprehensively. Build a regular testing schedule, keep patches up to date and monitor alerts from these tools to keep your website safe at all times. If you want to deploy an all-round security solution for your business, TOT is ready to advise on strategy and help set up a continuous monitoring process so your website runs reliably and stably.

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