List of the Top 8 Free Website Security Software in 2025

Source Defense plays a crucial role in safeguarding web safety by securing data precisely at the point of entry. Its platform delivers a straightforward yet powerful approach to ensuring data security and meeting privacy compliance requirements. This solution effectively tackles the threats and risks associated with the growing reliance on JavaScript, third-party vendors, and open-source code within your online assets. By providing various options for code security, it also fills a significant gap in managing the risks of third-party digital supply chains, which includes regulating the actions of third-party, fourth-party, and beyond JavaScript that enhance your website's functionality. Furthermore, Source Defense Platform defends against a wide range of client-side security threats, such as keylogging, formjacking, and digital skimming, while also offering protection against Magecart attacks by extending security measures from the browser to the server environment. In doing so, it ensures a comprehensive security framework that adapts to the complexities of modern web interactions.

Verosint's cutting-edge ITDR platform offers a swift and effective solution for detecting, investigating, and addressing attacks on both workforce and customer accounts as well as identity systems. By utilizing unified observability along with AI-driven behavioral analytics, it successfully identifies advanced threats while continuously safeguarding your organization and its users. With Verosint, you can: - Defend against the rapidly increasing and financially devastating attacks that conventional identity systems often overlook, including those affecting Okta, Ping, Microsoft, and Google. - Significantly reduce the time it takes to identify and address identity security threats, leading to lower mean time to detect (MTTD) and mean time to remediate (MTTR). - Enhance productivity and efficiency through comprehensive incident visibility, instantaneous threat detection, and automated remediation, allowing your team to concentrate on their core priorities. - Bridge staffing and skill deficiencies by harnessing behavioral analytics, identity intelligence, and AI insights, which help to navigate complexity and illuminate potential threats. In under an hour, you can achieve immediate protection against identity-based attacks, such as credential stuffing, account takeovers, brute-force assaults, session sharing and hijacking, MFA fatigue, location mismatches, previously compromised emails and credentials, dormant accounts, and much more. Moreover, this proactive approach ensures that your organization remains resilient in the face of evolving cyber threats.

Cloudflare serves as the backbone of your infrastructure, applications, teams, and software ecosystem. It offers protection and guarantees the security and reliability of your external-facing assets, including websites, APIs, applications, and various web services. Additionally, Cloudflare secures your internal resources, encompassing applications within firewalls, teams, and devices, thereby ensuring comprehensive protection. This platform also facilitates the development of applications that can scale globally. The reliability, security, and performance of your websites, APIs, and other channels are crucial for engaging effectively with customers and suppliers in an increasingly digital world. As such, Cloudflare for Infrastructure presents an all-encompassing solution for anything connected to the Internet. Your internal teams can confidently depend on applications and devices behind the firewall to enhance their workflows. As remote work continues to surge, the pressure on many organizations' VPNs and hardware solutions is becoming more pronounced, necessitating robust and reliable solutions to manage these demands.

Effectively tracking third-party scripts removes ambiguity, guaranteeing that you remain informed about what is sent to your users' browsers, while also boosting script efficiency by as much as 30%. The uncontrolled existence of these scripts within users' browsers can lead to major complications when issues arise, resulting in negative publicity, possible legal repercussions, and claims for damages due to security violations. Organizations that manage cardholder information must adhere to PCI DSS 4.0 requirements, specifically sections 6.4.3 and 11.6.1, which mandate the implementation of tamper-detection mechanisms by March 31, 2025, to avert attacks by alerting relevant parties of unauthorized changes to HTTP headers and payment details. c/side is distinguished as the only fully autonomous detection system focused on assessing third-party scripts, moving past a mere reliance on threat intelligence feeds or easily circumvented detection methods. Utilizing historical data and advanced artificial intelligence, c/side thoroughly evaluates the payloads and behaviors of scripts, taking a proactive approach to counter new threats. Our ongoing surveillance of numerous websites enables us to remain ahead of emerging attack methods, as we analyze all scripts to improve and strengthen our detection systems continually. This all-encompassing strategy not only protects your digital landscape but also cultivates increased assurance in the security of third-party integrations, fostering a safer online experience for users. Ultimately, embracing such robust monitoring practices can significantly enhance both the performance and security of web applications.

Our cloud-based SWAP has been recognized as one of the premier defenses against threats such as cross-site scripting (XSS), SQL injection, and Distributed Denial of Service attacks. Utilizing a logic-driven approach, Cloudbric's SWAP incorporates pattern recognition, semantic analysis, heuristic evaluation, and foundational rulesets, all of which are automated and user-friendly. This level of automation eliminates the frequent need to modify security policies or update signatures. Additionally, private Web Application Firewall (WAF) deployments offer a range of customization options to meet specific needs. Our service guarantees the security of your website, ensuring it remains operational and shielded from DDoS attacks. Cloudbric takes proactive measures to thwart DDoS attacks at layers 3, 4, and 7, capable of managing threats that can surge to an impressive 20Tbps. Moreover, our solution not only offers robust protection but also enhances the overall resilience of your online presence.

Preventing fraud, spam, and account takeovers can be achieved with a highly accurate browser fingerprinting technology boasting a 99.5% success rate. This tool enables you to swiftly monitor suspicious activities from visitors and track their geolocation. By incorporating our API into your signup processes or server-side business logic, you can ensure instant notifications that are securely sent to your backend systems. This solution is particularly beneficial for developing scalable, asynchronous workflows. Any web application can be fortified against account takeovers, thereby enhancing the security of your customers' accounts by effectively identifying potential threats and thwarting them before they can inflict harm. Users who utilize the same passwords across different platforms expose themselves to the risk of account breaches, as fraudsters often acquire these credentials through various means. By linking multiple login attempts to bot networks, it becomes possible to apprehend these criminals. Additionally, social engineering remains a potent tactic employed by fraudsters to infiltrate accounts. To safeguard against unauthorized access, it is advisable to require new visitors to undergo extra authentication measures. This proactive approach can significantly bolster your security framework and help maintain user trust.

Cerber Security provides robust protection for WordPress against various threats including hacking attempts, spam, and malware. Its design is both fast and dependable, utilizing a series of specialized algorithms to analyze incoming requests for patterns indicative of harmful code and unusual traffic behavior. The bot detection system is effective in identifying and countering automated attacks. It helps diminish both code injection attempts and brute force assaults while implementing GEO country rules to limit access. It restricts both REST API and standard user numbers, and access to the REST API and XML-RPC is tightly controlled. Additionally, it employs a worldwide database of IP addresses associated with malicious activities. The technology utilizes both heuristic and content-based methods to identify bots, continuously comparing IP addresses against an up-to-date list linked to spamming, phishing, and other nefarious actions. Furthermore, every file and folder on your site undergoes a rigorous scan for trojans, malware, and viruses, with the capability to automatically eliminate any detected threats. It also keeps a vigilant watch over any suspicious, newly added, or altered files, ensuring comprehensive security for your WordPress site. This proactive approach guarantees a safer environment for website owners and their visitors alike.

The Comodo Security Operations Center (CSOC) provides 24/7 security management delivered by certified experts using state-of-the-art technology. The dedicated team at CSOC is tasked with detecting and assessing threats, sending alerts as needed to engage clients in troubleshooting and mitigation efforts. By utilizing Comodo cWatch CSOC, your internal IT team can significantly boost its capacity to protect applications with advanced security solutions that are easy to implement, fully managed, and require minimal upfront investments. This service is designed to simplify the complex and lengthy process of investigating security incidents while reducing the financial strain of maintaining an in-house security team. With real-time monitoring of web traffic and proactive threat detection, our security experts can quickly notify organizations and take necessary actions when an attack occurs. The ongoing vigilance of the Comodo CSOC team, who are highly skilled in application security monitoring and management, guarantees that organizations can function with increased confidence. This holistic strategy not only fortifies your assets but also enables your team to concentrate on essential business activities without being sidetracked by security issues. Ultimately, the peace of mind provided by CSOC allows organizations to thrive in a secure environment.