X has begun rolling out an updated version of its web application to signed-in users. The deployment is occurring on a country-by-country basis. This new app is already in use for X's logged-out web experience and for pages accessed by search engine crawlers.
Principal engineer Yagiz Nizipli stated that the new web app offers substantial speed improvements. For example, loading a profile on X.com over a slow connection now takes 2.7 seconds, a significant reduction from the 22 seconds it took with the old application before the first post appeared. Security researcher Jane Manchun Wong also noted the app feels "snappy" and loads quickly.
The updated application involves a technical rewrite that consolidates server infrastructure. The previous setup utilized three separate servers for users, search crawlers, and link previews. The new architecture replaces these with a single server, contributing to the reported performance gains and operational efficiency.
The primary impact of this update is a faster and more responsive browsing experience for X users. The reduction in loading times, particularly on slower connections, addresses a common user frustration and aims to improve overall engagement with the platform.
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X is deploying a new web application globally, rolling it out to signed-in users country by country. The company states the updated app significantly improves loading times, with profiles loading in 2.7 seconds compared to 22 seconds previously on slow connections.