Malware Detection

Website Malware Scanner Solution

Websites, just like yours, are attacked an average of 94 times a day. This can cause many issues including downtime, blacklisting, and loss of sensitive data. Our website malware checker runs continuously in the background to notify you of any security issues as they are detected. Once SiteLock uncovers an issue, the tool then works to remove malware, malicious code, and any other possible security threats from your site. Start detecting those threats with our online tool today.

Our Scanning Capabilities

Once a site has been hacked, it doesn’t take long for both users and search engines to notice, and subsequently for performance to start suffering. It’s necessary to have an automated website monitoring solution in place that will detect attacks and immediately put a stop to them. Strengthen your web security posture by leveraging our complete website scanner.

Malware Scan

Our malware scanner analyzes website content, flagging suspicious and malicious content and notifying you immediately of any issues to correct.

Spam Scan

This spam scan ensures your website isn’t listed in a spam database, ensuring your customer emails won't be blocked or routed to spam folders.

SQL Injection Scan

Our comprehensive scanner penetrates a site with SQL injection methods to find vulnerabilities. Uncovering and addressing these vulnerabilities prevents data breaches.

Cross-site Scripting (XSS) Scan

Block client-side code injection attacks. XSS is another common vulnerability that hackers can use to steal visitor data or trick visitors into providing data to third parties.

Application Scan

The application scan examines the server’s core applications, including operating system, database, and language versions such as PHP and MySQL looking for any malicious activity.

SSL Scan

This scans websites and verifies they have a valid SSL certificate, which is a crucial layer in website protection.

Why Use SiteLock?

Our tool is trusted by over 12 million website owners. SiteLock continuously monitors your site’s health to help ensure it stays protected.


Eliminate lengthy setup and onboarding times. Using your FTP/SFTP credentials, you can start using our security scanner in just a few clicks.

Stay in the know

Always stay informed about the security of your site with automated alert emails, our Risk Score, and live results from your dashboard.

Increase visitor trust

Build customer confidence with a SiteLock Trust Seal. Your malware scanning solution includes a security badge that lets your visitors know your site is secure and malware-free.

Peace of Mind

Protect your website with automated cybersecurity technology and never worry about a compromise damaging your site, reputation, or bottom line.

Compatible with all types of content management systems

We prevent millions of hacks per day
on these platforms and more

We work with WordPress, WooCommerce, Drupal, Magento, Microsoft, and custom websites.


What are the signs of website malware?

The most obvious signs of malware infection include website defacements and unauthorized login modifications. Additionally, you may notice that key files are suddenly modified or mysteriously go missing. Other signs of trouble include suddenly freezing webpages and significant decreases in general website traffic. As these issues progress, other issues could include action from hosting companies (including notifications or even suspension), as well as blacklisting from search engines.

What happens when a website gets malware?

Malware attacks occur as hackers discover vulnerabilities that can be exploited to allow for the installation of malicious content. As these installations take hold, users suddenly find themselves completing actions they didn't intend. Performance degradation quickly follows, including a sudden influx of spam and malicious redirects. Other forms of malware may infect users as they click on ads or even in response to simply visiting your website. Over time, the infection spreads and causes significant damage not only to your website, but also, to your reputation.

What is the biggest malware threat?

Ransomware is one of the greatest cyber threats, as it not only places sensitive data at risk, but also, involves threats to block access or even publish this information if the attacked organization fails to pay a significant ransom. Many ransomware attacks target entire networks, rather than relying on individual devices. Further threats such as artificial intelligence attacks are alarming because they can exploit networks to a previously unheard-of degree. Other worrisome threats include cryptojacking and Internet of Things (IoT) attacks.

What is the hardest malware to detect?

Many types of malware can be difficult to discern with the untrained eye, but some take regular, high-level scanning to detect. Spyware has long held a reputation for its stealthy nature, but rootkits may be even more insidious. Hiding deep within infected systems, these provide administrator access to malicious parties, who can then initiate commands.

When do I need to scan my website for malware?

Daily scans are the gold standard for malware prevention. These should be automated to streamline the process and ensure regular insights into possible vulnerabilities that could make future attacks more likely. Automatic notifications ensure that you're aware of hazards as soon as they're found. This, in turn, enables you to respond quickly and limit the damage.

How can I scan a website for malware for free?

While a website security plan will provide the greatest peace of mind, external scans can be obtained free of charge. SiteLock offers a cost-free option that is easy to use: simply type your website's domain name and we will do the rest. This simple scan should reveal known malware, as well as malicious code. Our basic check should also reveal whether your website is up to date.

Reduce your website security risks

Get started with SiteLock today

Automatically protect your website, reputation and visitors against both common threats and advanced attacks.