---
schema_version: "1"
id: f4d0c67ff3a2a3d639b0fa6db4f6bf2bc91d53a13799c3b8c65ba976d99607f4
title: Improve Performance with HTML Page Caching for Communities in Site.com
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/platform/264-0-0/siteforce_communities_caching.md
canonical_url: https://help.salesforce.com/s/articleView?id=platform.siteforce_communities_caching.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: a26ed902eff7436a623b5062cc8d4fb3cb1dae8f89d90d81411f6adce13357c9
description: HTML caching lets you improve the performance and page rendering of your community’s Site.com site by controlling how often the generated markup of the page is reloaded.
products:
  - Salesforce Platform
  - Security
release: "264"
---
# Improve Performance with HTML Page Caching for Communities in Site.com

HTML caching lets you improve the performance and page rendering of your community’s Site.com site by controlling how often the generated markup of the page is reloaded.

### Required Editions

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small edition">
        <colgroup>
          <col>
        </colgroup>
        <tbody>
          <tr class="">
            <td class="slds-cell-wrap" style="vertical-align:top;">Available in: Salesforce Classic</td>

          </tr>
          <tr class="">
            <td class="slds-cell-wrap" style="vertical-align:top;">
              <p>Available for purchase in: <strong>Enterprise</strong>, <strong>Performance</strong>,
                and <strong>Unlimited</strong> Editions</p>
              <p style="margin-bottom:0;">Available (with limitations) in:
                <strong>Developer</strong> Edition
              </p>
            </td>

          </tr>
        </tbody>
      </table> <table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small permission">
        <colgroup>
          <col style="width:50%">
          <col style="width:50%">
        </colgroup>
        <thead class="slds-text-title_caps ">
          <tr class="">
            <th scope="colgroup" class="slds-cell-wrap" colspan="2" style="text-align:center;vertical-align:top;" id="d23524e74">User
              Permissions Needed</th>
          </tr>
        </thead>
        <tbody>
          <tr class="">
            <td data-label="User Permissions Needed" class="slds-cell-wrap" style="vertical-align:top;" headers="d23524e74 ">To build, edit, and manage a community’s Site.com custom
              pages:</td>

            <td class="slds-cell-wrap" style="vertical-align:top;" headers="d23524e74 ">
              <p>Create and Set Up Communities</p>
              <p>OR</p>
              <p><samp class="parmname">Site.com
                  Publisher User</samp> field enabled on the user detail
                page</p>
              <p>AND</p>
              <p style="margin-bottom:0;">Site administrator or designer role
                assigned at the site level</p>
            </td>

          </tr>
        </tbody>
      </table>

Lets say 100 people visit the page at the same time. Without caching, the page makes 100 separate requests for the same markup, slowing performance considerably. However, with caching enabled, the page markup is requested and retrieved only one time—the first time someone visits the page. Any subsequent page requests during a set time period are returned from the cache. When the specified time period expires, the cache is refreshed.

![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-platform-extend_click-264-0-0-production-enus/5f7d9219-b7b1-4552-8891-f1aba9b289fc/images/icon_note.png)

Note The caching duration applies only to community pages that are accessed by guest users. When a user logs in to access the page, caching is disabled.

1. In Site.com Studio, open the page.
2. In the Cache Duration (Minutes) field of the Cache section of the Properties tab, specify the length of time to cache the page.
    
    By default, the caching duration of a page is set to 30 minutes.
    
    To disable caching, set the page’s caching duration to 0.