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The Software section is where you control what runs your code: which PHP version, which extensions, which WordPress optimizations. Two of the most useful tools (Select PHP Version and AccelerateWP) come from CloudLinux, which is why they’re more capable than what stock cPanel ships with.
Software section in cPanel home with all tool icons

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PHP

Select PHP Version

Pick a PHP version, toggle extensions, and tune php.ini settings without SSH.

X-Ray App

Profile slow PHP requests. Find out which function calls are eating your TTFB.

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WordPress and site speed

AccelerateWP

CloudLinux’s WP Rocket-style speed plugin. Page caching, JS/CSS minification, lazy loading, database cleanup.

Optimize Website

Toggle Apache mod_deflate compression. Use with care.

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Modules and packages

PHP PEAR Packages

Install PHP libraries from the PEAR repository.

Perl Modules

Install Perl modules from CPAN.

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Common starting points

My WordPress is slow

Start AccelerateWP with the suggested defaults.

A plugin needs PHP 8.5

Switch the active PHP version in two clicks.

A page is taking 5+ seconds

Trace a request with X-Ray and see which function is responsible.

Composer can't find an extension

Toggle the extension on the Extensions tab.

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Need a hand?