Master Citrix ADC & Gateway 2026 with 1Y0-231 – Deploy, Manage, and Dominate!

The main idea is to modify the content that NetScaler Gateway sends to users without replacing the whole page. The Rewrite feature is designed for this: it can intercept HTTP responses and change the payload, headers, or other parts of the response on the fly. To add a custom footer to the Gateway login page, you would create a rewrite action that defines the footer HTML you want, then a rewrite policy that detects the login page response and applies that action. Binding this policy to the gateway virtual server ensures that whenever the login page is served, your footer is appended to the HTML before it reaches the user’s browser. This approach keeps the original login page structure intact while adding branding or notices in a maintainable way.

Other options don’t fit as naturally. Responder can return a different page or content, but that would replace the entire response rather than augmenting the existing page. HTTP Callout is used to fetch data from an external service, not to modify the login page content. SmartAccess relates to access control and routing, not UI customization.