Best Website Security Software

Patchstack is an Estonia-based application security platform focused on WordPress. Its RapidMitigate engine applies virtual patches, over 15,000 unique mitigation rules, that block exploitation of known vulnerabilities without requiring code changes or waiting for an official plugin update, often providing protection up to 48 hours ahead of public disclosure.

The platform also performs software composition analysis to identify vulnerable plugins and themes, offers advanced hardening and IP blocklisting, and supports remote management across many sites at once through an API. Patchstack is sold on a Developer plan priced per website license with a free first month, plus custom Enterprise and Web Host plans aimed at MSPs, agencies, and hosting providers who need compliance features like SLAs and DPAs.

Detectify is a Swedish security platform combining External Attack Surface Management (EASM) with Dynamic Application Security Testing (DAST). It automatically discovers internet-facing domains, subdomains, and cloud assets, then continuously monitors them for DNS changes, exposed services, and exploitable vulnerabilities in custom-built web applications and APIs.

A distinguishing feature is Detectify Crowdsource, a network of over 400 ethical hackers who feed real-world vulnerability research into the platform, letting new test modules go live in as little as 15 minutes. The product is aimed at security and engineering teams that need continuous visibility into their changing attack surface, with CI/CD integrations, SSO, and white-labeled reporting available on higher tiers.

F5, headquartered in Seattle, Washington, is a long-established application delivery and security vendor best known for its BIG-IP product line. BIG-IP acts as a high-performance load balancer, SSL/TLS terminator, and policy enforcement layer, available as physical hardware, a virtual edition for private or public cloud, and paired with an Advanced WAF module for OWASP Top 10 and bot defense.

Beyond BIG-IP, F5 offers NGINX for cloud-native and Kubernetes environments, and F5 Distributed Cloud Services, a SaaS platform delivering WAF, API security, and bot mitigation across multicloud deployments with AI-powered risk scoring. Nearly all F5 products are sold through custom quotes or annual subscriptions rather than published self-serve pricing, reflecting its focus on large enterprises and service providers.

SiteLock is a cloud-based website security service that scans sites daily for malware, vulnerabilities, and blacklisting, and automatically removes threats it finds. It also offers a web application firewall and CDN to block malicious traffic, mitigate DDoS attacks, and speed up page loading, alongside scheduled backups.

The service is sold in three monthly tiers, Basic, Pro, and Business, that differ mainly in ticket response time, backup storage limits, and whether the firewall, bot blocking, and automated patching are included. SiteLock is aimed at small to mid-size website owners and is commonly bundled through web hosting providers.

Kinsta is a managed WordPress hosting platform built on Google Cloud infrastructure, and security is bundled into every plan rather than sold separately. Each site runs in its own isolated container, backed by a Cloudflare-powered web application firewall, DDoS protection, and automatic bot blocking. Kinsta issues free SSL certificates with automatic renewal, bans IPs after repeated failed logins, and runs continuous uptime and malware monitoring across its network.

Every plan includes a hack-fix guarantee, meaning Kinsta's security engineers clean up a compromised site at no extra charge. Daily automated backups keep full-site snapshots for quick restoration. The underlying infrastructure holds SOC 2 Type II and ISO 27001 certifications, making Kinsta a common choice for agencies and businesses that want enterprise-grade WordPress security without managing it themselves.

MalCare is a WordPress security plugin that scans sites for malware using AI-based detection, then removes infections with a one-click cleanup process designed to avoid breaking the site. It also includes a real-time web application firewall, bot protection, login security, vulnerability alerts for outdated plugins and themes, and site backups.

Plans scale from a free tier with weekly scans up to the Fortify plan built for high-traffic WooCommerce stores with hourly scanning and a six-hour expert response time. MalCare is developed by BlogVault and is aimed at individual site owners, freelancers, and agencies managing multiple WordPress sites.

Solid Security began as Better WP Security, was later renamed iThemes Security, and became Solid Security under the SolidWP brand. It was a WordPress plugin offering brute-force protection, two-factor authentication, password enforcement rules, file change detection, and Patchstack-powered vulnerability alerts and virtual patching. In May 2026, Liquid Web consolidated the SolidWP brand into its Kadence WordPress product line, and the plugin was renamed Kadence Security.

Kadence Security is no longer sold as a standalone product. It now ships only inside the paid Kadence Pro and Elite site-builder bundles, alongside backups and multi-site management tools, though a limited free hardening version remains on WordPress.org. Buyers who want just the security features must now purchase the full Kadence suite, and critical security patches for the retired standalone product are only guaranteed through April 2027.

Astra Security provides a continuous penetration testing platform that combines an automated vulnerability scanner running thousands of tests with manual testing from certified security experts. Results feed into a single dashboard with compliance-ready reports for standards like SOC 2, ISO 27001, HIPAA, and PCI, plus AI-assisted remediation guidance.

Astra sells its pentest product in two main yearly tiers plus a custom Enterprise option, and separately offers a website protection product (firewall and malware scanner) under its WebPro/webprotect.ai brand. The company is legally based in the United States and serves startups through large enterprises needing recurring security testing.

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