Migrating a 100GB WordPress website is a significant technical challenge that tests the limits of standard plugins. While the All-in-One WP Migration
plugin is a "gold standard" for its simplicity, handling a site of this magnitude requires moving beyond the free version's basic capabilities. WordPress.org The Core Challenge: Size Limits
By default, the free version of All-in-One WP Migration often has a strict upload limit (sometimes as low as 512MB or even less depending on server settings). A 100GB site is roughly 200 times larger than this cap. To bridge this gap, users typically face three paths: Official Extensions : The most reliable method is purchasing the Unlimited Extension
, which removes all file size restrictions and supports multi-gigabyte transfers for a yearly fee. Legacy Workarounds
: Some users attempt to use older, modified versions of the plugin (like version 6.77) to manually edit the constants.php
file and bypass size limits. However, this is risky as it can lead to security vulnerabilities or data corruption during large transfers. Specialised Alternatives : For massive 100GB+ sites, tools like Migrate Guru
are often recommended because they use external servers to process the data, avoiding the "stuck at 100%" errors common with server-side resource exhaustion. studiopress.community Best Practices for Large Migrations