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Preconnect all the things!.. sure?
04-05-2018, 04:47 AM
Post: #2
RE: Preconnect all the things!.. sure?
Hey Dario -

Good questions, I've wondered the same myself, which has led me to testing them. Honestly in all my efforts, I've failed to come up with a significant difference in overall page load speed by including/excluding the preconnect directive.

Granted, everyone's site is different, and testing (I think testing synthetically is fine for this situation, just make sure it's a consistent environment) is the best way for you to know in your own scenario.

I think common advice is it doesn't hurt anything to include a preconnect directive for your CDN, or anything that's referenced above the fold. But I wouldn't worry about listing every single domain that's used.

If I were you I'd focus on some other optimizations, such as your TTFB and blocking js.
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Preconnect all the things!.. sure? - dario - 04-05-2018, 01:46 AM
RE: Preconnect all the things!.. sure? - MachMetrics - 04-05-2018 04:47 AM

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