: Tool to check resource load order Is there a tool I can show clients that will take a page's HTML and show: a) the order in which external resources will load, b) which resources are blocked

@Odierno851

Try pingdom.com and gtmetrix.com/
are best according to me

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@Debbie626

The Network and Timeline tabs of Chrome's developer tools show when and how long it takes to load individual page components.

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@Rivera981

There's a bunch of tools that illustrate the waterfall (the cascading chain of HTTP requests from the browser to the server):


gtMetrix (combines ySlow and PageSpeed)
pingdom tools loadimpact.com/page-analyzer webpagetest (best in my opinion)


Also, note that your point:


...browsers can only load 6 resources at a time...


is not quite correct, while 6 is the average number of concurrent connections to a single server as at mid 2011 (see here), this number has increased since and doesn't account for domain sharding which can increase the total number of connections by around 10x.

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@Pope3001725

try yslow extention it might be useful

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