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Target First Byte Time of -3ms
12-07-2015, 03:37 PM
Post: #1
Target First Byte Time of -3ms
Hello, I have found some of my tests have a Target First Byte Time of -3ms (negative 3ms). The link below is one example and I have noticed several other tests results with exactly "-3ms" and other results with targets under 100ms.

http://www.webpagetest.org/result/151206..._byte_time

This looks to be an error and I signed up to check on it. This online tool has been very helpful in identifying speed issues with my site.
Thank you,
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12-16-2015, 03:14 AM
Post: #2
RE: Target First Byte Time of -3ms
If unrealistic target TTFB have already been discussed, please link the thread. Thanks
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12-16-2015, 04:34 AM
Post: #3
RE: Target First Byte Time of -3ms
It's a known issue with WPT where it assigns unattainably low target times to sites that use CDNs, especially Cloudflare.

Get off CF's nameservers, it really doesn't do anything for you.
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