On 19 Mar 2005 09:54:39 -0800,
"Yef" <e97y@yahoo.com> posted:

> Recently, I fetched a page from a server, its info is:
>
> Server: Apache/1.3.33 (Unix) mod_fastcgi/2.4.2 PHP/4.3.10
> mod_ssl/2.8.22 OpenSSL/0.9.7d
> X-Powered-By: PHP/4.3.10
>
> Within the HTML response I found numerous lines that had only
> 3 characters each, always 0..9 and a..f i.e. hexadecimal.
>
> These were always inside of links.
>
> Can someone tell me what these little buggers are all about?

Encoded characters. They might be trying to hide them from prying eyes, or
they could be characters that need encoding to be part of the URI (due to
the rules of what characters are allowed in them).

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