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Does CloudFlare really speed up your site? Tests say not really.

blog.dh42.com

21–30 of 61 posts

Re: Does CloudFlare really speed up your site? Tests say not really.

#21
It seems that they took whole blog site down. This was funny and very lame.

Forbidden

You don't have permission to access /cloudflare-showdown/ on this server.

Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.

Re: Does CloudFlare really speed up your site? Tests say not really.

#22
This article/site appears to be down. Cannot help but wonder if it wouldn't be if they had used CloudFlare...

Jokes aside, I never really expected that CloudFlare would increase the speed of your average site. I mean there is limited caching going on but in general that isn't the benefit of a CDN.

The benefit of a CDN is: consistent speed across geographical zones (Europe, Americas, Asia, Russia, etc), better handling of load variations (Slashdotted, etc), and also some level of DDOS protection (just due to the virtue of more availability).

Any increase in speed supplied by CloudFlare depends a great deal on how the underlying site delivers content and how well cache-control is done. For example if you move all of your static content onto a static host (e.g. static.example.com) and then set the cache to a week, then CloudFlare is going to do a lot more for you, then if your app supplies most content dynamic with no-cache set.

Re: Does CloudFlare really speed up your site? Tests say not really.

#23
post #8
post #2

FYI: http://www.x-pose.org/2012/06/cloudflare-response-times-are-...

Would be more interesting if it stayed on the page for more than 200ms. Displays, then goes white in Safari. Chrome is fine.

Authors site has this in the tag after javascript has run ...:

  style="margin-left: -32767px; "
Not sure why that is there, or what use it has. In Chrome for some reason an empty style tag is applied to the tag, it too flashes to white and then back, so I assume some JavaScript is adding the margin-left and then removing it.

---

Some quick testing ... may not be accurate:

It seems that the *-blink.js stuff that comes down from gstatic.com is the culprit.

Re: Does CloudFlare really speed up your site? Tests say not really.

#24
post #12
post #5

This is a small test[1] that shows the absence of miracles. My interpretation is: • Location, location, location. – Sometimes cloudflare will have better positioning than your server. In this test the Amsterdam clients benefit significantly compared to his Atlanta Georgia US based server. • It is not magic. – For the content he is using (base installs of popular packages and highly web optimized site) cloudflare's co…

Could it be that your denial of service attack is a misconfiguration somewhere? I had a similar issue at one point, a typo in someone's DNS meant that my private server got absolutely wiped out by junk requests. I've heard of people using simple load testers like http://loadimpact.com/ to test dynamic pages, though I've not had a serious use for one yet. That's probably as far as you can get without hiring a botnet y…

The DDOS had a variety of strategies. Lots of UDP flooding with presumably forged source addresses. Lots of tcp port hunting too. That was a company ago and I no longer have access to my report on that.

Re: Does CloudFlare really speed up your site? Tests say not really.

#25
Personally, I have had pretty terrible experiences with CloudFlare. Specifically, downtime at the DNS level and no options to keep a site up. This was last year - but it was an abysmal experience and a lot of unhappy customers in their support forums.

Re: Does CloudFlare really speed up your site? Tests say not really.

#26
I stopped using Cloudflare because of their "protection service". They would block certain visitors, seemingly by random, and present them with a captcha. The page presenting the captcha had big ads on them.

There's no way that it's acceptable to show ads and captchas to potential customers, before they can even see my website.

Re: Does CloudFlare really speed up your site? Tests say not really.

#27
post #5

This is a small test[1] that shows the absence of miracles. My interpretation is: • Location, location, location. – Sometimes cloudflare will have better positioning than your server. In this test the Amsterdam clients benefit significantly compared to his Atlanta Georgia US based server. • It is not magic. – For the content he is using (base installs of popular packages and highly web optimized site) cloudflare's co…

For load testing, you could use apache bench with a fast bandwidth connection, beeswithmachineguns (EC2), locust.io (simulate users), blitz.io (cloud service)

Re: Does CloudFlare really speed up your site? Tests say not really.

#30

If you are fronting a heroku-based app on their cedar platform and have rails (or whatever) serving up static resources CloudFlare is a no brainer: you free up your dyno's to handle the dynamic stuff, and it's a few config-clicks to get it going, with no crazy asset deployment steps. Additionally, for the cost of just Heroku's SSL endpoint per month, CloudFlare will effectively issue you a wild-card SSL cert (hundred…

you can get a wildcard cert for less than $90/year. I got mine for $40 with a special on namecheap.com
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