The art of tuning a website to deliver it's content quickly and efficiently to the user over a potentially low bandwidth connection.

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13
votes
2answers
1k views

Ideas to improve website loading speed?

Are there any ways in which I can improve the loading speed of a website? I know that Google is really pushing loading speeds and with the popularity of mobile websites it's now imperative that sites ...
17
votes
6answers
571 views

How do you load test your application?

What is the most effective way to load to load test your app? The main point is to determine how many users you could support at a single time with the application still running at a reasonable speed. ...
49
votes
8answers
18k views

How can I simulate a slow connection for page load?

I have a fast server, and a reasonably fast home Internet connection. How can I simulate my page loading on a slow connection?
14
votes
11answers
2k views

Common optimizations to reduce HTML or XHTML page size?

What are some common optimizations performed to reduce HTML or XHTML page size? Some that come to mind are: removing comments, removing extraneous whitespace, moving repetitive inline styles to a ...
23
votes
1answer
3k views

How exactly is Google Webmaster Tools measuring “Site Performance”?

I've been working for two months now on improving our response time (mainly server side) on a new forum (a brand new product on a technical point of view) we've launched in Germany a few month ago and ...
25
votes
3answers
2k views

Should I use gzip for compressing my HTML?

I saw from an online tester that my HTML can be compressed about 90%! Is it good practice to use gzip or not? I see that lot sites don't use it. For me it would improve traffic, as some pages ...
9
votes
1answer
683 views

Is there a maximum size that web pages should be kept under?

Posted this on SO before Ben Voigt was nice enough to direct me here. Anywho, here is my question: When I say size I'm talking about bytes not pixels. I'm curious if there is any consensus on what ...
18
votes
3answers
1k views

If a page takes too long to load, after how long will a user give up and re-load or go elsewhere?

If a page takes too long to load, after how long – generally – will a user give up and re-load or go elsewhere? What studies have been done that measured page load time and user ...
9
votes
1answer
229 views

Hosting speed tests?

Are there any sites to test the speed of your hosting? I know there are sites that will tell you why your site is slow, e.g. - YSlow, etc., but how about the speed of bandwidth you get from your ...
14
votes
7answers
419 views

What are the best ways to measure end user web site performance?

I know of a couple tools to measure end user web site performance and I'm wondering what else is out there. The two major ones I know of are yslow and Google's page speed.
3
votes
2answers
502 views

What are reasons of latency for a HTTP request to load HTML?

I would like to know what are reasons of latency for a HTTP request to load HTML part of a webpage. I think about: loading webpage with proxy not having a good web server (apache vs nginx) having a ...
14
votes
5answers
2k views

What's the best way to load Javascript into a page to optimize performance?

Is there a way to load my JavaScript into a page that will make it load faster?
4
votes
5answers
4k views

GZipped Images - Is It Worth?

Most image formats are already compressed. But in fact, if I take an image and compress it [gzipping it], and then I compare the compressed one to the uncompressed one, there is a difference in size, ...
5
votes
1answer
497 views

Page Speed Online vs Chrome Extension

In optimizing a content blog of mine with the goal of achieving the highest page speed score possible for obvious reasons (user experience, SEO, etc..), the results I'm obtaining are throwing me for a ...
3
votes
3answers
132 views

Google webmaster tools Site Performance says site is faster but shows it slow in the graph

Looking into Google webmaster tools it happened to me many times to see for some of my sites these type of inconsistency, in the text they say my site is faster than 63% of sites, but when I look at ...
5
votes
1answer
129 views

Connection speed for a website from UK to Australia

I need to open a website only for Australian customers. The fact is that our provider's servers are all housed in the UK. What do you suggest is better? Leaving our website in the UK? Or buy a ...
5
votes
1answer
158 views

What percent of visitors should click on the next page before you enable prefetching?

Mozilla Firefox and Google Chrome support prefetching via an HTML tag: <!-- in chrome --> <link rel="prerender" href="http://example.org/index.html"> I suppose it is always worthwhile ...
3
votes
9answers
248 views

How do you enhance your websites speed without compromising the design and access?

How do you enhance your websites load speed without killing the design and accessibility? File compression, CDN, Gzip? What are the best tools for doing so? For example, Google has optimized their ...