Contents

Introduction

Question:  Why Does my Browser Silently Send Requests for a 'favicon.ico' File for Multiple Domains?

Answer

Related Information

Introduction

This document describes why a browser sends a request for 'favicon.ico'.

Question:  Why Does my Browser Silently Send Requests for a 'favicon.ico' File for Multiple Domains?

- Environment: Cisco Web Security Appliance (WSA), all versions of AsyncOS

Answer

You notice that when you browse to different domains, your browser sends requests for http:// your domain /favicon.ico   in the background.

Modern browsers show an icon to the left of the URL. This is known as the 'favicon.ico' and is typically fetched from the favicon.io website. Your browser automatically requests it when you browse to different sites. If your browser receives a valid favicon.ico file, it displays this icon. If it fails, it does not display a special icon.

In either circumstance, neither your search nor your browser is affected.

For more information on the favicon on Wikipediat see, Favicon.

Related Information

- Favicon

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