A redirect URL is an intermediate web address that receives a browser request and forwards it to a different destination. It is commonly used for site navigation, tracking, logout flows, and link shorteners. The browser may briefly visit the redirector before landing on the final page, so the visible address bar can change during the transfer.
In cyber security, redirect URLs matter because they can hide or blur the real destination a user is about to open. Attackers may abuse redirect chains to route victims through trusted-looking domains, mask a phishing site, or make a suspicious link harder to inspect at a glance. Defenders watch for this same behavior in email filters, web gateways, and browser protections, and users are taught to verify the final domain before entering passwords, recovery codes, or payment details. A redirect is not automatically dangerous, but it can weaken a key trust signal.