I could have outdated information; in either case speed isn&#x27;t as important as security.<p>Why haven&#x27;t servers started advertising how many connections they are willing to accept? The need for other domains could be easily removed with something like an HTTP response header:<p><pre><code>    200 Ok
    ...
    X-Max-Parallel-Connection: 10
    ...
</code></pre>
This type of header could even be used to give per-page values:<p><pre><code>    X-Max-Parallel-Connection: 20, scope=local-page-only
</code></pre>
(there&#x27;s probably a better way to phrase these, but that works as an example)<p>Yes, I know these are not supported by browsers <i>yet</i>, but sensibility is one of the best features of HTTP.