Which factor does NOT affect website loading speed?

Website loading speed is influenced by a variety of technical and design factors, while user-specific characteristics, such as age, do not have a direct impact on how quickly a website loads.

Image optimization is crucial because large, unoptimized images can significantly slow down load times as they require more data to be transferred. Hosting provider quality is also a key factor; a reliable and fast hosting service can enhance loading speeds, while a subpar provider may introduce delays. Similarly, the complexity of code impacts performance; overly intricate or poorly structured code can slow down processing and rendering times.

User age, on the other hand, pertains more to demographics and usability preferences rather than speed. While older users may have different browsing habits or device capabilities, their age does not affect the fundamental speed at which a web page is delivered to a visitor's device. Thus, it stands apart from the other options, making it the correct choice for the factor that does not affect website loading speed.