X launches rebuilt web app powered by AI coding agents
X launched a rebuilt web application that unifies rendering for users, search crawlers and link-preview bots, with streaming server rendering replacing the previous multi-stage loading flow. X says the first post on an account page loaded in 2.7 seconds under Slow 4G, compared with either 22 or 23.9 seconds in its published figures. AI coding agents performed substantial porting, page conversion, test writing and fixes during the rebuild, while logged-in users are being migrated gradually by country.
This is a notable real-world deployment of AI coding agents in a large social platform's web engineering, alongside a claimed performance improvement from a unified and streaming architecture.
IT之家 11 月 5 日消息，全球首富埃隆 · 马斯克（Elon Musk）旗下社交媒体平台 X 于今天（11 月 5 日）推出重构后的网页应用，在 Slow 4G 慢速网络环境下，账号主页的首条推文加载时间从 22 秒下降到 2.7 秒，时间缩短 87.73%。
X 官方介绍文章显示为 23.9 秒变 2.7 秒，但 Nizipli 推文显示是 22 秒变 2.7 秒
IT之家注：Slow 4G 是指网络延迟约为 150ms，下行速度为 1.6 Mbps，上行速度为 750 Kbps。该模式是网页性能测试中常用的一种“较慢移动网络”模拟环境，用来衡量网站在信号弱、带宽有限、延迟偏高的真实手机网络下，需要多久才能显示内容。
X 首席工程师 Yagiz Nizipli 表示，旧版网页应用 rweb 已服务 X 网页版近十年，但其架构拆分用户渲染、搜索引擎渲染和链接预览到不同系统。同一个 URL 可能需要三种方式生成页面，导致 SEO 修复、错误页处理和元信息维护需要在多个代码库重复进行。
#X#X rebuilt web application#Vite#React#Fastify#Platformatic Watt#Relay#GraphQL#Rust