A serious web hosting security stack has three layers: a server-level WAF and malware scanner (Imunify360, BitNinja, Blackwall, Monarx, ConfigServer Firewall) that the host runs across every site on the box; an application-level layer inside each WordPress install (Wordfence, MalCare, Patchstack, Jetpack); and, for high-value sites, a cloud WAF (Sucuri, Cloudflare) that absorbs DDoS and filters attack traffic in front of the origin. This guide groups the major vendors by category and use case so you can pick the right tool for the layer you actually need, rather than stacking duplicates. HostList is independent and accepts no sponsorship or affiliate commission from the vendors listed.
HostList includes actively maintained products with an official product page and verifiable security capabilities. The editorial directory covers hosting, cloud, enterprise, open-source, and application-level tools; WordPress.org plugins are imported separately below. Rebrands stay on the current vendor profile, and discontinued products are removed from recommendations.
Runs on the host server itself; protects every site at the network and request layer before the request reaches the application. Used by shared hosting providers.
Server-side security suite built for hosting providers.
A self-hosted reverse-proxy WAF and bot-mitigation platform built for hosting providers.
A cost-focused server security suite for hosting control panels, bundling a WAF, malware scanning, and firewall.
Comprehensive server security suite widely deployed by shared hosts.
Server-side malware detection that scans files independent of the CMS; catches backdoors and webshells signature scanners miss. Used by hosts.
The open-source antivirus engine that underpins malware scanning on countless Linux and mail servers.
The open-source malware scanner for Linux shared hosting, built around threat data from real-world attacks.
Behavioural server-side malware detection that catches what signature scanners miss.
Network-layer firewall on the host. The baseline every server should have; everything else stacks on top.
The de-facto open-source server firewall for Linux hosting.
The open-source standard for blocking brute-force attacks by banning IPs that fail repeatedly in log files.
Plug-in or service that runs inside the WordPress install. Application-level protection; the user controls it directly.
Automattic-built WordPress security bundle. Tightly integrated with WordPress core.
WordPress security suite focused on automatic, off-site malware cleanup.
Vulnerability database and virtual patching layer for WordPress.
A long-running WordPress security plugin covering logins, hardening, and monitoring, formerly iThemes Security.
The most-installed WordPress security plugin. Application-level WAF + malware scanner.
The WordPress vulnerability database and scanner, maintained by Automattic, for finding known plugin and core CVEs.
Sits in front of the origin via DNS so attack traffic is filtered in the cloud, never reaching your server. Pairs well with a small origin.
A website firewall and malware scanner combined with continuous vulnerability scanning and pentesting.
The most widely used cloud WAF and CDN, filtering attacks at the DNS edge before they reach your origin.
Website malware scanning, automatic removal, and a cloud WAF, widely resold by hosting providers.
Cloud-based WAF and managed incident response. Sits in front of the origin via DNS.
Edge and cloud WAF platforms for larger sites and APIs, with managed rules, bot defence, and DDoS at global scale. Usually custom-priced.
Enterprise WAF, DDoS, and API protection on one of the world's largest edge networks.
Amazon's pay-as-you-go WAF that plugs into CloudFront, ALB, API Gateway, and AppSync.
Microsoft's WAF on Azure Front Door and Application Gateway, with managed OWASP rulesets.
A practical mid-market and enterprise WAF, available as an appliance, VM, or the WAF-as-a-Service cloud offering.
Enterprise WAF across SaaS, appliance, and NGINX form factors, from a long-time application-delivery leader.
The Signal Sciences engine on Fastly's edge, protecting web apps and APIs with low-friction, threshold-based blocking.
Fortinet's WAF across appliance, VM, and cloud, with machine-learning anomaly detection and Security Fabric integration.
A long-standing enterprise WAF leader, offered as a cloud service or on-premise appliance with strong DDoS and API defence.
Filters comment spam, form spam, and abusive bot traffic. Usually a small footprint and quick win.
The default WordPress anti-spam service from Automattic, filtering comment and form spam via a central database.
Cloud-based anti-spam plus bot and brute-force protection.
142 WordPress.org plugins tagged security with 1,000+ active installs. Factual data from the public plugin directory; claim your listing to add a Verified badge.
Most shared hosting providers run a server-level security suite that combines a WAF, malware scanner, and brute-force protection. The major options include Imunify360 (CloudLinux-aligned hosts), BitNinja (independent and shared hosts), Blackwall (self-hosted reverse-proxy WAF and bot mitigation), and Monarx (specialist behavioural malware detection). On top of that, ConfigServer Firewall (CSF) is the de-facto open-source network firewall on Linux servers. WordPress-specific layers like Patchstack add virtual patching for plugin vulnerabilities before authors release a fix.
Server-level security (BitNinja, Imunify360, Blackwall, Monarx, CSF) runs on the host and protects every site on the server at the network and request layer, before traffic reaches the application. WordPress-level security (Wordfence, MalCare, Patchstack, Jetpack) runs inside the WordPress install and protects that one site at the application layer. Hosts deploy server-level; site owners deploy WP-level. A serious stack uses both because they catch different classes of attack.
They solve different problems. A cloud WAF (Sucuri, Cloudflare) intercepts traffic at the DNS layer, so attacks never reach your origin and the WAF scales to absorb large DDoS. A server WAF (BitNinja, Imunify360) sits on the host and protects every site on the server, including against attackers who bypass DNS by hitting the origin IP directly. Many serious stacks use both: cloud WAF for volumetric DDoS and bots, server WAF for in-depth defence and zero-day virtual patching.
Server security suites for hosts typically cost $10 to $30 per server per month (BitNinja, Imunify360); behavioural malware tools like Monarx are usually custom-priced by server count. Open-source baselines (CSF, ModSecurity) are free but require sysadmin time. For end-user WordPress security, expect $99 to $200 per site per year (Wordfence Premium, MalCare, Sucuri). The economics are clear: a single uncleaned malware incident usually costs more in support time than a year of preventative tooling.
For WordPress specifically: Patchstack covers the vulnerability and virtual-patching gap that no other WP security tool covers as well; Wordfence is the most-installed application-level WAF + scanner; MalCare is the strongest off-site scanner with automatic cleanup; Sucuri is the right choice when you want a managed cloud WAF with manual incident response included. The pragmatic stack for most agencies is Patchstack (virtual patches) plus a scanner of choice, with the host providing server-level protection underneath.
No fabricated percentage scores. Vendors with verified ownership and complete profiles rank higher in spotlight ordering via profile completeness signals. This guide is editorial and organized by category and use case, not paid placement.