Limits for Visualforce components and pages.
Visualforce uses a tag-based markup language for building applications and customize the Salesforce user interface.
| Limit | Value |
|---|---|
| Maximum length of a Visualforce page name (the text in the URL that uniquely identifies the Visualforce page) |
40 characters Page names can’t be longer than 40 characters. |
| Maximum length for source code of a Visualforce page (the source code, not the rendered response) |
1 MB of text A single page can hold up to 1 MB of text, or approximately 1,000,000 characters. |
| Maximum length for source code of a Visualforce component (the source code) |
1 MB of text A single component can hold up to 1 MB of text, or approximately 1,000,000 characters. |
| Maximum width of a Visualforce page displayed on a profile tab |
750 pixels A single page displayed on a profile tab can’t be wider than 750 pixels. |