21CTO

May 17, 2017 · Operations

Should You Keep the ‘www’ Prefix? Pros, Cons, and Server Config Guide

This article examines whether the ‘www’ subdomain is still necessary in 2023, discusses DNS and cookie implications, and provides practical Apache and Nginx rewrite rules for handling www‑to‑non‑www (and vice versa) redirects while considering SSL and SEO impacts.