What is Application Firewall?

An application firewall is a security control that monitors, filters, and enforces policy on traffic at the application layer to protect specific applications and their data from unauthorized or malformed requests. Expanded Explanation 1. Technical Function and Core Characteristics An application firewall inspects traffic at the application layer, such as Hypertext Transfer Protocol (HTTP), HTTPS, or specific application protocols, to enforce security policies based on application logic and

How widely is Application Firewall used?

12 organizations in our directory are tagged Application Firewall, referenced across 1 article.

What is Application Firewall most closely associated with?

Application Firewall is most closely associated with Application and Cybersecurity.

Application Firewall

Last updated August 24, 2026

Human View Machine View

This is the page you're already on — the Human View toggle above shows it in full.

A green key on the record, left, is one Decision Insights added. It doesn't exist on the company's site or in a wire feed. The same key labels its row on the right, so you can match them directly. More on how DI enriches a record.

The record

This is what the machine sees: the exact JSON-LD an agent receives for this listing.

WebSite

{
  "@context": "https://schema.org",
  "@id": "https://decisioninsights.ai/#website",
  "@type": "WebSite",
  "name": "Decision Insights",
  "potentialAction": {
    "@type": "SearchAction",
    "target": {
      "@type": "EntryPoint",
      "urlTemplate": "https://decisioninsights.ai/search/?q={search_term_string}\u0026submit=1"
    }
  },
  "publisher": {
    "@id": "https://decisioninsights.ai/#organization"
  },
  "url": "https://decisioninsights.ai"
}

Organization

{
  "@context": "https://schema.org",
  "@id": "https://decisioninsights.ai/#organization",
  "@type": "Organization",
  "contactPoint": {
    "@type": "ContactPoint",
    "contactType": "customer support",
    "email": "[email protected]"
  },
  "description": "Decision Insights is a Registry of technology companies, open source projects, and industry terms, built for people and for AI agents that need sourced, structured information.",
  "logo": {
    "@type": "ImageObject",
    "url": "https://wiretap-cdn-assets.nyc3.cdn.digitaloceanspaces.com/decision-insights/[email protected]"
  },
  "name": "Decision Insights",
  "parentOrganization": {
    "@type": "Organization",
    "name": "Wiretap Labs",
    "sameAs": [
      "https://www.linkedin.com/company/wiretap-labs",
      "https://www.crunchbase.com/organization/wiretap-labs"
    ],
    "url": "https://wiretaplabs.com"
  },
  "publishingPrinciples": "https://decisioninsights.ai/standards/",
  "sameAs": [
    "https://www.linkedin.com/company/decisioninsights"
  ],
  "url": "https://decisioninsights.ai"
}

BreadcrumbList

{
  "@context": "https://schema.org",
  "@type": "BreadcrumbList",
  "itemListElement": [
    {
      "@type": "ListItem",
      "item": "https://decisioninsights.ai",
      "name": "Decision Insights",
      "position": 1
    },
    {
      "@type": "ListItem",
      "item": "https://decisioninsights.ai/term/",
      "name": "Glossary",
      "position": 2
    },
    {
      "@type": "ListItem",
      "item": "https://decisioninsights.ai/term/application-firewall/",
      "name": "Application Firewall",
      "position": 3
    }
  ]
}

DefinedTerm

{
  "@context": "https://schema.org",
  "@id": "https://decisioninsights.ai/term/application-firewall/#definedterm",
  "@type": "DefinedTerm",
  "additionalProperty": [
    {
      "@type": "PropertyValue",
      "name": "Articles mentioning this entity",
      "value": 1
    },
    {
      "@type": "PropertyValue",
      "name": "Organizations tagged",
      "value": 12
    },
    {
      "@type": "PropertyValue",
      "name": "Organizations",
      "propertyID": "https://decisioninsights.ai/ns#taggedOrganizations",
      "value": [
        {
          "@id": "https://decisioninsights.ai/registry/atomicorp-unified-security-built-on-ossec/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/atomicorp-unified-security-built-on-ossec/",
          "name": "Atomicorp"
        },
        {
          "@id": "https://decisioninsights.ai/registry/citrix/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/citrix/",
          "name": "Citrix"
        },
        {
          "@id": "https://decisioninsights.ai/registry/cloudflare/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/cloudflare/",
          "name": "Cloudflare"
        },
        {
          "@id": "https://decisioninsights.ai/registry/f5-networks/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/f5-networks/",
          "name": "F5"
        },
        {
          "@id": "https://decisioninsights.ai/registry/fastly/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/fastly/",
          "name": "Fastly"
        },
        {
          "@id": "https://decisioninsights.ai/registry/godaddy/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/godaddy/",
          "name": "GoDaddy"
        },
        {
          "@id": "https://decisioninsights.ai/registry/haproxy-technologies/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/haproxy-technologies/",
          "name": "HAProxy Technologies"
        },
        {
          "@id": "https://decisioninsights.ai/registry/perimeterx/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/perimeterx/",
          "name": "PerimeterX"
        },
        {
          "@id": "https://decisioninsights.ai/registry/radware/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/radware/",
          "name": "Radware"
        },
        {
          "@id": "https://decisioninsights.ai/registry/radware/shieldsquare/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/radware/shieldsquare/",
          "name": "ShieldSquare"
        },
        {
          "@id": "https://decisioninsights.ai/registry/sucuri-security/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/sucuri-security/",
          "name": "Sucuri Security"
        },
        {
          "@id": "https://decisioninsights.ai/registry/lagrange-systems/#organization",
          "@type": "Organization",
          "mainEntityOfPage": "https://decisioninsights.ai/registry/lagrange-systems/",
          "name": "Webscale Networks"
        }
      ]
    },
    {
      "@type": "PropertyValue",
      "name": "Related terms",
      "valueReference": [
        {
          "@id": "https://decisioninsights.ai/term/application-specific-firewall/#definedterm",
          "@type": "DefinedTerm",
          "mainEntityOfPage": "https://decisioninsights.ai/term/application-specific-firewall/",
          "name": "Application-Specific Firewall"
        },
        {
          "@id": "https://decisioninsights.ai/term/web-application-firewall-waf/#definedterm",
          "@type": "DefinedTerm",
          "mainEntityOfPage": "https://decisioninsights.ai/term/web-application-firewall-waf/",
          "name": "Web Application Firewall"
        },
        {
          "@id": "https://decisioninsights.ai/term/firewall/#definedterm",
          "@type": "DefinedTerm",
          "mainEntityOfPage": "https://decisioninsights.ai/term/firewall/",
          "name": "Firewall"
        },
        {
          "@id": "https://decisioninsights.ai/term/web-application-and-api-protection-waap/#definedterm",
          "@type": "DefinedTerm",
          "mainEntityOfPage": "https://decisioninsights.ai/term/web-application-and-api-protection-waap/",
          "name": "Web Application and API Protection"
        },
        {
          "@id": "https://decisioninsights.ai/term/application-security/#definedterm",
          "@type": "DefinedTerm",
          "mainEntityOfPage": "https://decisioninsights.ai/term/application-security/",
          "name": "Application Security"
        },
        {
          "@id": "https://decisioninsights.ai/term/application-aware-accelerator/#definedterm",
          "@type": "DefinedTerm",
          "mainEntityOfPage": "https://decisioninsights.ai/term/application-aware-accelerator/",
          "name": "Application-Aware Accelerator"
        },
        {
          "@id": "https://decisioninsights.ai/term/application-whitelisting-awl/#definedterm",
          "@type": "DefinedTerm",
          "mainEntityOfPage": "https://decisioninsights.ai/term/application-whitelisting-awl/",
          "name": "Application Whitelisting"
        },
        {
          "@id": "https://decisioninsights.ai/term/api-gateway/#definedterm",
          "@type": "DefinedTerm",
          "mainEntityOfPage": "https://decisioninsights.ai/term/api-gateway/",
          "name": "API Gateway"
        }
      ]
    },
    {
      "@type": "PropertyValue",
      "name": "Related terms (co-occurring topics)",
      "valueReference": [
        {
          "@id": "https://decisioninsights.ai/term/application/#definedterm",
          "@type": "DefinedTerm",
          "mainEntityOfPage": "https://decisioninsights.ai/term/application/",
          "name": "Application"
        },
        {
          "@id": "https://decisioninsights.ai/term/cybersecurity/#definedterm",
          "@type": "DefinedTerm",
          "mainEntityOfPage": "https://decisioninsights.ai/term/cybersecurity/",
          "name": "Cybersecurity"
        }
      ]
    }
  ],
  "description": "Application firewall is a security control that inspects and filters application-layer traffic for specific services or APIs, enforcing defined policies to block or log malicious or noncompliant requests and support enterprise requirements for application security, governance, and compliance.",
  "inDefinedTermSet": {
    "@id": "https://decisioninsights.ai/term/#termset",
    "@type": "DefinedTermSet",
    "url": "https://decisioninsights.ai/term/"
  },
  "name": "Application Firewall",
  "subjectOf": [
    {
      "@id": "https://decisioninsights.ai/cloudflare-recognized-as-a-leader-in-web-application-firewall-solutions-by-forrester-research/#blogposting",
      "@type": "BlogPosting",
      "headline": "Cloudflare recognized as a leader in web application firewall solutions by Forrester Research",
      "url": "https://decisioninsights.ai/cloudflare-recognized-as-a-leader-in-web-application-firewall-solutions-by-forrester-research/"
    }
  ],
  "url": "https://decisioninsights.ai/term/application-firewall/"
}

CollectionPage

{
  "@context": "https://schema.org",
  "@id": "https://decisioninsights.ai/term/application-firewall/",
  "@type": "CollectionPage",
  "dateModified": "2026-08-24T02:37:14Z",
  "description": "Application firewall is a security control that inspects and filters application-layer traffic for specific services or APIs, enforcing defined policies to block or log malicious or noncompliant requests and support enterprise requirements for application security, governance, and compliance.",
  "isPartOf": {
    "@id": "https://decisioninsights.ai/#website"
  },
  "mainEntity": {
    "@id": "https://decisioninsights.ai/term/application-firewall/#definedterm"
  },
  "name": "Application Firewall",
  "sdDatePublished": "2026-08-24",
  "sdPublisher": {
    "@id": "https://decisioninsights.ai/#organization"
  },
  "url": "https://decisioninsights.ai/term/application-firewall/"
}

What we add

Graph

A glossary entry defines a term and stops there. It doesn't show where the term is actually being used or written about. We track and link every article that covers it.

BlogPosting Cloudflare recognized as a leader in web application firewall solutions by Forrester Research

Counted facts

A dictionary definition doesn't say how often a term is actually used. This counts it across the graph -- articles that mention it, open source projects tagged with it, and the organizations tagged with it, listed here alongside the count. A term has no peer companies, and nothing here claims otherwise.

Articles mentioning this entity 1 Organizations tagged 12 Organizations Atomicorp, Citrix, Cloudflare, F5, Fastly, GoDaddy, HAProxy Technologies, PerimeterX, Radware, ShieldSquare, Sucuri Security, Webscale Networks Related terms Related terms (co-occurring topics)