How to improve page load times in Visualforce?

How to improve page load times in Visualforce?

To improve Visualforce page load times: Cache any data that is frequently accessed, such as icon graphics. Avoid SOQL queries in your Apex controller getter methods. Limiting the data coming back from SOQL calls in your Apex controllers. For example, using AND statements in your WHERE clause, or removing null results

Can we call a batch apex from Visualforce page?

Yes. Your Visualforce page will need either a custom controller or an extension class. From that class you can use the Database.executeBatch method to kick off the asynchronous method.

How to reduce view state size in Visualforce?

For more information, see “Developer Console Functionality” in the Salesforce Help. The view state size of your Visualforce pages must be under 170KB. By reducing your view state size, your pages can load quicker and stall less often.

What can I do to improve the performance of Visualforce?

Visualforce is designed to provide developers with the ability to match the functionality, behavior, and performance of standard Salesforce pages. If your users experience delays, unexpected behavior, or other issues specifically around Visualforce, consider the following optimization options:

What should the state size of Visualforce pages be?

The view state size of your Visualforce pages must be under 170KB. By reducing your view state size, your pages can load quicker and stall less often. Use the transient keyword in your Apex controllers for variables that aren’t essential for maintaining state and aren’t necessary during page refreshes.

What to do if Visualforce is not working?

If your users experience delays, unexpected behavior, or other issues specifically around Visualforce, consider the following optimization options: The problems aren’t confined to a single user’s computer by testing expected Visualforce functionality on other machines and when using different browsers.

What’s the best way to debug a page?

The first few debugging techniques to use are: When you right-click over a point in a page and select Inspect Element, you get the DOM Element shown and the CSS styles that apply shown. This lets you see what HTML/CSS/JavaScript has resulted from your Visualforce.

Which is the best way to measure page load time?

SpeedIndex is another great way to measure the performance of your pages. SpeedIndex is the average time at which visible parts of the page are displayed (above the fold content). It’s a descent approach to figuring out how quickly your above the fold content takes to load, which in turn can be a good indicator of a user’s perceived load time.

What makes Lightning pages load faster in Salesforce?

Another factor that can impact EPT is how your Lightning pages are optimized and configured in Salesforce. As you might guess, a standard record page will load faster than a custom page with lots of fields, embedded Visualforce pages, or heavily customized components.

How to get rid of lazy loading in Visualforce?

Use the rerender attribute on Visualforce components to update the component without updating the entire page. Use JavaScript Remoting to call functions in your controller through JavaScript, and to retrieve ancillary or static data. Create a custom component to show and hide data according to user actions.

What’s the best way to improve Visualforce performance?

This technique gives users faster access to essential features, improving the apparent responsiveness of a large page, even though the entire page takes the same total time to load. Use the rerender attribute on Visualforce components to update the component without updating the entire page.