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by mikeytown2
3473 days ago
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From my experience preconnect is a big improvement for connecting to 3rd party domains. Will also mention that once you have JS deferred, CSS on a 3rd party domain (google fonts) can cause some major slowdowns in terms of the start rendering metrics if using HTTP/2 on a slow connection; all the bandwidth is used for the primary domain connection and not used for blocking resources, end result being images get downloaded before external blocking CSS. |
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