Why do some web-applications use the http-get parameter rnd? What is the purpose of it? What problems are solved by using this parameter?
Why do some web-applications use the http-get parameter rnd ? What is the purpose
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Why do some web-applications use the http-get parameter rnd? What is the purpose of it? What problems are solved by using this parameter?
This could be to make sure the page/image/whatever isn’t taken from the user’s cache. If the link is different every time then the browser will get it from the server rather than from the cache, ensuring it’s the latest version.
It could also be to track people’s progress through the site. Best explained with a little story:
All we can do is suggest possibilities though. There’s no one standard reason to put rnd= in a URL, and we can’t know the website designer’s motives without seeing the server software.