Redirect Time
A redirect is a response from a server that automatically forwards a user from one URL to another. While sometimes necessary (e.g., for tracking or moving content), redirects are very harmful to performance. Each redirect adds at least one full network Round Trip Time (RTT) to the loading process, which significantly delays the Time To First Byte (TTFB). Redirects on the initial HTML document should be eliminated whenever possible.
Related web performance terms
- ROI (Return on Investment)
ROI is a business metric used to evaluate the profitability of an investment by comparing the net profit to the cost of the investment. It is typically expressed as a percentage.
- RTT (Round Trip Time)
RTT stands for Round Trip Time and is a fundamental networking metric. It measures the total time it takes for a data packet to travel from a source (like a user's browser) to a destination (a serv…
- RTT-0 (Zero Round-Trip Time)
0-RTT (Zero Round-Trip Time Resumption) is a high-performance feature of modern network protocols like TLS 1.3 and HTTP/3.
- Real User Monitoring (RUM)
See Field Data.