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Slow Time to First Byte,
07-19-2015, 04:21 AM
Post: #8
RE: Slow Time to First Byte,
(07-17-2015 11:49 PM)zpinhead Wrote:  Cloudflare is under control in the sense that it is turned off.
It is? Testing shows it is still active. You're never going to improve TTFB while using CF.

The target TTFB is just a silly number and I see this every time on sites using CF - 168ms and this skews the results. In the test I just ran here you have .990ms as TTFB. Typically what I see on all of my sites is a target somewhere around 240-350ms, and 'A' grades for this follow. You're never going to have a TTFB of 168ms. It's unattainable. Unless of course you're just loading blank pages. The target FBT will be a much more realistic number once you completely get rid of CF, and so will the total FBT you actually get.

I always use IE11 as a tester, for worst case scenario. You'll notice on your Chrome test, it's only 61 requests. With IE 11 you're seeing all 65 requests. Chrome ignores certain types of requests to give you the illusion that it's "faster." Okay I guess for the casual PC end-user, but not accurate for real world testing. You're not getting the entire picture.

When you look at the details for the 'C' grade for leverage browser cache of static assets, you can see most of it is 3rd party, google. Really nothing you can do about that.

However you can shave 140kb off every page load by optimizing the images located at calls 5, 9, 13-15, 17, and 29-34. Details here and WPT will even optimize the images for you when you click on "analyze JPG" for each one.

In the above you can see CF does not optimize your site. It merely delivers your un-optimized content from a location ostensibly closer to the user than your actual host server. It's not a magic bullet for performance, it's actually a lead balloon on it.

I've fixed literally dozens of sites with results like yours, getting straight A grades across the board no matter test browser or location. Ditch the magic bullet and do some more real optimization work in addition to what you've already done.

By the way your host really can't do much for you, with CF in the way.
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Messages In This Thread
Slow Time to First Byte, - zpinhead - 07-15-2015, 06:36 AM
RE: Slow Time to First Byte, - pmeenan - 07-16-2015, 02:17 AM
RE: Slow Time to First Byte, - zpinhead - 07-16-2015, 12:02 PM
RE: Slow Time to First Byte, - zpinhead - 07-17-2015, 11:13 PM
RE: Slow Time to First Byte, - pmeenan - 07-17-2015, 11:26 PM
RE: Slow Time to First Byte, - zpinhead - 07-17-2015, 11:49 PM
RE: Slow Time to First Byte, - Anton Chigurh - 07-19-2015 04:21 AM
RE: Slow Time to First Byte, - zpinhead - 07-20-2015, 01:12 AM
RE: Slow Time to First Byte, - datadiggers - 07-22-2015, 07:36 AM
RE: Slow Time to First Byte, - pmeenan - 07-18-2015, 03:22 AM
RE: Slow Time to First Byte, - zpinhead - 07-24-2015, 02:34 AM

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