A serious web hosting security stack has three layers: a server-level WAF and malware scanner (Imunify360, BitNinja, 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.
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.
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.
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.
Plug-in or service that runs inside the WordPress install. Application-level protection; the user controls it directly.
Vulnerability database and virtual patching layer for WordPress.
The most-installed WordPress security plugin. Application-level WAF + malware scanner.
WordPress security suite focused on automatic, off-site malware cleanup.
Automattic-built WordPress security bundle. Tightly integrated with WordPress core.
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.
Cloud-based WAF and managed incident response. Sits in front of the origin via DNS.
Filters comment spam, form spam, and abusive bot traffic. Usually a small footprint and quick win.
Cloud-based anti-spam plus bot and brute-force protection.
Most shared hosting providers run a server-level security suite that combines a WAF, malware scanner, and brute-force protection. The widely deployed options are Imunify360 (CloudLinux-aligned hosts), BitNinja (independent and shared hosts), 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, 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. HostList is independent and accepts no sponsorship, affiliate commission, or paid placement from security vendors. This page is editorial: vendors are listed by category and use case, not by commercial relationship. The methodology behind HostScore (the directory ranking) is published in full at hostlist.io/hostscore, and the same independence applies here.