--- title: Manage Defender Web Filter description: Use this operation to block or allow web categoriesin Defender Web Filter. --- [Skip to content](https://knowledge.sittadel.com/manage-defender-web-filter#main-content) [![Sittadel-Logo-Icon-Slim-Large-Square-Green-Transparent copy](https://knowledge.sittadel.com/hs-fs/hubfs/Sittadel-Logo-Icon-Slim-Large-Square-Green-Transparent%20copy.png?width=55&height=55&name=Sittadel-Logo-Icon-Slim-Large-Square-Green-Transparent%20copy.png)](https://sittadel.com/) - [About Sittadel](https://sittadel.com/about/) - [Capabilities](https://sittadel.com/capabilities/microsoft-office365-azure-security/) Show submenu for Capabilities - [Microsoft Security Architecture](https://sittadel.com/capabilities/microsoft-office365-azure-security/) - [Detection & Response](https://sittadel.com/capabilities/managed-detection-and-response/) - [Employee Training](https://sittadel.com/capabilities/security-awareness-training/) - [Security Risk Advisors](https://sittadel.com/capabilities/virtual-information-security-officer/) - [Resources](https://sittadel.com/resources/) - [Knowledge Base](https://knowledge.sittadel.com/) Open main navigation Close main navigation - [About Sittadel](https://sittadel.com/about/) - [Capabilities](https://sittadel.com/capabilities/microsoft-office365-azure-security/) Show submenu for Capabilities - [Microsoft Security Architecture](https://sittadel.com/capabilities/microsoft-office365-azure-security/) - [Detection & Response](https://sittadel.com/capabilities/managed-detection-and-response/) - [Employee Training](https://sittadel.com/capabilities/security-awareness-training/) - [Security Risk Advisors](https://sittadel.com/capabilities/virtual-information-security-officer/) - [Resources](https://sittadel.com/resources/) - [Knowledge Base](https://knowledge.sittadel.com/) - [Get Sittadel](https://sittadel.com/start/) [Get Sittadel](https://sittadel.com/start/) Find answers to your security questions. - There are no suggestions because the search field is empty. 1. [Sittadel Knowledge Base](https://knowledge.sittadel.com/?hsLang=en) 2. [TechOps](https://knowledge.sittadel.com/techops?hsLang=en) 3. [Device Security](https://knowledge.sittadel.com/techops?hsLang=en#device-security) # Manage Defender Web Filter ## Use this operation to block or allow web categoriesin Defender Web Filter. ### **![](https://knowledge.sittadel.com/hs-fs/hubfs/image-png-Jan-19-2024-04-04-16-2156-PM.png?width=125&height=133&name=image-png-Jan-19-2024-04-04-16-2156-PM.png)Role Requirements** Procedure Scope: **Administrators** Required Group Membership: **Admin.Security** ### **![](https://knowledge.sittadel.com/hs-fs/hubfs/image-png-Jan-19-2024-04-13-05-5511-PM.png?width=125&height=148&name=image-png-Jan-19-2024-04-13-05-5511-PM.png)** ### **Handbook Reference** Package: **Device Security** Domain: **Web Filter Management** Modifies: **Blocked Web Filter Categories** ### **![2024-12-17\_9-49-52](https://knowledge.sittadel.com/hs-fs/hubfs/Canva%20images/2024-12-17_9-49-52.png?width=125&height=103&name=2024-12-17_9-49-52.png)** ### **When to Perform this Operation** As Needed: **Proactive or in Response to User/Security** #### ![](https://knowledge.sittadel.com/hs-fs/hubfs/image-png-Nov-15-2024-06-17-56-3267-PM.png?width=670&height=47&name=image-png-Nov-15-2024-06-17-56-3267-PM.png) ### Technical Description and Importance Managing Defender Web Filter settings ensures that access to web content aligns with organizational policies and security considerations. Blocking certain categories or URLs helps mitigate security risks, such as phishing or malicious sites, while allowing specific domains ensures necessary business functionality. This control mechanism supports regulatory compliance and enhances security by restricting access to unauthorized or harmful web content. Regularly reviewing and updating these settings ensures a balance between security and usability. ### Management Options - [Block a Category](https://knowledge.sittadel.com/manage-defender-web-filter#Block-a-Category) - [Allow a Category](https://knowledge.sittadel.com/manage-defender-web-filter#Allow-a-Category) #### ![2024-12-17\_10-15-21](https://knowledge.sittadel.com/hs-fs/hubfs/2024-12-17_10-15-21.png?width=670&height=81&name=2024-12-17_10-15-21.png) #### Block a Category: > **Purpose** > *Add a web category to the blocked list in Defender Web Filter.* > **Use Case** > *Preventing access to known high-risk categories, such as gambling or malware-hosting sites.* #### Allow a Category: > **Purpose** > *Remove a web category from the blocked list to permit access.* > **Use Case** > *Enabling access to a previously restricted category needed for business operations.* *![2024-12-17\_10-15-21-1](https://knowledge.sittadel.com/hs-fs/hubfs/2024-12-17_10-15-21-1.png?width=670&height=81&name=2024-12-17_10-15-21-1.png)* | ###### **Operation** | ###### **Action** | ###### **Target** | | --- | --- | --- | | Block a Category | **Addition** | Blocked Web Filter Categories | | Allow a Category | **Removal** | Blocked Web Filter Categories | #### ![](https://knowledge.sittadel.com/hs-fs/hubfs/image-png-Nov-15-2024-06-17-56-3267-PM.png?width=670&height=47&name=image-png-Nov-15-2024-06-17-56-3267-PM.png) ### Block a Category This operation adds a category to the blocked list in Defender Web Filter.       **1. Defender Web Filter Category Block** > #### ![](https://knowledge.sittadel.com/hs-fs/hubfs/image-png-Nov-15-2024-06-17-56-3267-PM.png?width=670&height=47&name=image-png-Nov-15-2024-06-17-56-3267-PM.png) ### Allow a Category This operation removes a category from the blocked list in Defender Web Filter.       **1. Defender Web Filter Category Allowance** > ### Need Assistance? Reach out to your Customer Success Manager to discuss how a Sittadel cybersecurity analyst can assist in managing these tasks for you. New to our services? [Inquire](https://sittadel.com/start/) about arranging a consultation to explore optimizing your Azure environment for painless management. - [UserOps](https://knowledge.sittadel.com/userops?hsLang=en#main-content) - [Access & Permissions](https://knowledge.sittadel.com/userops?hsLang=en#access-permissions) - [Account](https://knowledge.sittadel.com/userops?hsLang=en#account) - [Devices](https://knowledge.sittadel.com/userops?hsLang=en#devices) - [Document Sharing](https://knowledge.sittadel.com/userops?hsLang=en#document-sharing) - [Email](https://knowledge.sittadel.com/userops?hsLang=en#email) - [Requests](https://knowledge.sittadel.com/userops?hsLang=en#requests) - [Troubleshoot](https://knowledge.sittadel.com/userops?hsLang=en#troubleshoot) - [TechOps](https://knowledge.sittadel.com/techops?hsLang=en#main-content) - [Tenant Foundations](https://knowledge.sittadel.com/techops?hsLang=en#tenant-foundations) - [Collaboration Security](https://knowledge.sittadel.com/techops?hsLang=en#collaboration-security) - [Email Security](https://knowledge.sittadel.com/techops?hsLang=en#email-security) - [Device Security](https://knowledge.sittadel.com/techops?hsLang=en#device-security) - [Identity Security](https://knowledge.sittadel.com/techops?hsLang=en#identity-security) - [SecOps](https://knowledge.sittadel.com/secops?hsLang=en#main-content) - [Email SOC](https://knowledge.sittadel.com/secops?hsLang=en#email-soc) - [Identity SOC](https://knowledge.sittadel.com/secops?hsLang=en#identity-soc) - [Tenant SOC](https://knowledge.sittadel.com/secops?hsLang=en#tenant-soc) - [Device SOC](https://knowledge.sittadel.com/secops?hsLang=en#device-soc) - [Deploy Intune](https://knowledge.sittadel.com/deploy-intune?hsLang=en) - [Deploy MDE](https://knowledge.sittadel.com/deploy-mde?hsLang=en#main-content) - [Overview](https://knowledge.sittadel.com/deploy-mde?hsLang=en#overview) - [Intune Deployment](https://knowledge.sittadel.com/deploy-mde?hsLang=en#intune-deployment) - [Hands-On Deployment](https://knowledge.sittadel.com/deploy-mde?hsLang=en#hands-on-deployment) - [Azure Arc Deployment](https://knowledge.sittadel.com/deploy-mde?hsLang=en#azure-arc-deployment) - [RMM Tool Deployment](https://knowledge.sittadel.com/deploy-mde?hsLang=en#rmm-tool-deployment) - [MECM/SCCM Deployment](https://knowledge.sittadel.com/deploy-mde?hsLang=en#mecm-sccm-deployment) - [GPO Deployment](https://knowledge.sittadel.com/deploy-mde?hsLang=en#gpo-deployment) - [Deploy Services](https://knowledge.sittadel.com/deploy-services?hsLang=en#main-content) - [Cloud Enclave](https://knowledge.sittadel.com/deploy-services?hsLang=en#cloud-enclave) - [Azure Portals](https://knowledge.sittadel.com/azure-portals?hsLang=en#main-content) - [Entra ID](https://knowledge.sittadel.com/azure-portals?hsLang=en#entra-id) - [Intune](https://knowledge.sittadel.com/azure-portals?hsLang=en#intune) - [Defender](https://knowledge.sittadel.com/azure-portals?hsLang=en#defender) - [Purview](https://knowledge.sittadel.com/azure-portals?hsLang=en#purview) - [SharePoint Admin Center](https://knowledge.sittadel.com/azure-portals?hsLang=en#sharepoint-admin-center) - [Teams Admin Center](https://knowledge.sittadel.com/azure-portals?hsLang=en#teams-admin-center) - [Admin Center](https://knowledge.sittadel.com/azure-portals?hsLang=en#admin-center) - [Exchange Admin Center](https://knowledge.sittadel.com/azure-portals?hsLang=en#exchange-admin-center) [![](https://knowledge.sittadel.com/hs-fs/hubfs/Sittadel_LogoH_Color_BlackText.png?width=186&height=55&name=Sittadel_LogoH_Color_BlackText.png)](https://Sittadel.com) Security for Humans. Copyright © 2026, Sittadel