NYCPHP Meetup

[Andre Pitanga]

This is so in depth. I hadn't seriously thought about css sprites yet.
I'm saving this for future reference.


John Campbell wrote:
>>  8) What factors determine your recommended maximum home page size (in
>>  kilobytes)? How are the factors related?
>>     
>
> My answer:
>
> The number of kilobytes is irrelevant to the user.  Page load time is
> what matters.
> To improve the page load time, the following items are a good idea:
> 1) Minimize the number of TCP connections -- make sure keep alive is turned on
> 2) Minimize Number of HTTP requests required -- use css sprites,
> consolidate scripts/css.
> 3) Make sure the page progressively renders. -- if you get a white
> flash in IE, you are doing something wrong
> 4) Remove unnecessary blocking javascript -- e.g. analytics code
> should be defered, ads should be placed at the end of the page and
> positioned with css if possible.
> 5) Use expires http headers.
> 6) Gzip all js/css/html.
> 7) Use subdomains to get around the 2 connection limit.
> 8) Replace complicated float layouts with tables  -- standards freaks
> hate this, but Google uses tables all the time because they care more
> about page render time than standards conformance.
> 9) Optimize all images for the web.  -- use the "save for web" feature
> in photoshop.  It strips out all the unnecessary metadata and
> optimizes the palette.
>
> Page size is rarely the issue.
>
> -John C.
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