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

learn more… | top users | synonyms (1)

5
votes
2answers
56 views

Do sites without ads perform better in Google search results?

Does Google view sites without advertising as a more reliable source of information and increase the odds of a website returning in the search results? I ask this for a few reasons. The main reason ...
5
votes
1answer
2k views

What sense can be made out of TIME_WAIT, CLOSE_WAIT, ESTABLISHED

Using netstat command, I got the number of couple of TCP states of connections. But for running websites, how to make meaningful connections between these numbers and the bottleneck/performance of ...
5
votes
2answers
1k views

URL rewritten pages take much longer to load

(Same issue as http://stackoverflow.com/questions/3987754/how-to-diagnose-htaccess-speed-issues-via-rewritelog but more clearly explained below) We have a site which has scripts like this: ...
5
votes
1answer
297 views

Combining CSS files with regards to @media

We have a website where the usual speed ups from High Performance Websites and Even Faster Web Sites paid dividends. However we have neglected stylesheets (due to the difficulties laid out below) and ...
5
votes
5answers
4k views

How to test the speed of a page that is guarded behind login page?

For public page, I can use pingdom.com to calculate the response time/uptime of a page over a certain period of time. However, pingdom cannot time the response time of a webpage guarded behind a ...
5
votes
2answers
196 views

What is “blocking time” in Chrome browser?

According to the answer of http://stackoverflow.com/questions/15597936/blocking-time-in-google-chrome: "Blocking" is the time the request spent waiting for an already established connection to ...
5
votes
1answer
237 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
889 views

How to show content for logged-in vs logged-out users?

We have a set of pages with the following urls: www.mysite.com/info/page1.html www.mysite.com/info/page2.html www.mysite.com/info/page3.html Each has a structure as follows: ---------------------- ...
5
votes
0answers
69 views

What might be causing my site's pages to load more slowly in these IIS Rewrite Module rules?

I have the following IIS rewrite rules that work exactly as I wish on both my development and live servers within an Orchard CMS website, though when enabled, seriously slow the site's page loads. ...
4
votes
5answers
1k views

Do user names used for login need to be unique?

Assuming a non-commercial site where users login with a user name and pw, do I need to enforce unicity of usernames? Note: The db will use a separate unique index to identify the users. The site is ...
4
votes
2answers
179 views

Page speed affecting ranking in practice

Articles like this one discuss Google possibly taking speed into account for ranking factors. Are there any other search engines which already take speed into account for search results? or perhaps ...
4
votes
2answers
1k views

CDN for authenticated sites

We have a site that requires users to sign into. Typical stuff. Today, all the content (dynamic and static) is behind the login process, and you cannot access any of the pages or files via a URL ...
4
votes
2answers
233 views

Adding Google +1 Button Slows Page Load Time

This article says Google +1 tags can add a second to page load time, which means a 10% decline in visitors. The article authors say they use smart tag loading to reduce page load time. Does anyone ...
4
votes
2answers
1k views

How can I speed up the download time of a Bootstrap theme'd website?

I realize some of the ways are: Use the minified versions of all the .css and .js Load the common library elements (jQuery, etc.) from some common source. Not sure what the source that's most likely ...
4
votes
2answers
212 views

Google Webmaster Tools - Why site performance graph goes up and down, even if the site has never changed?

This is my site 7 months graph from Google Webmaster Tools site performance util. As you can see the graph goes up and down, with big differences: less than 1 second up to 5 sec. Since I never ...
4
votes
2answers
1k views

One JS/CSS bundle Vs. One with default and one with custom

On a few of my sites, we use Javascript/CSS bundles to reduce load time. I've always used two bundles for each type (4 in total) so I have JS Bundle 1: Contains scripts that are standard on every ...
4
votes
2answers
589 views

Actual page load time vs. perceived one

You know how all around the web, people are pushing for smaller and smaller page load times ? They do so with good reason, especially with Google now factoring it in in their way to rank pages. It's ...
4
votes
1answer
102 views

Can I easily track site performance over time with Google PageSpeed?

Are there any implementations of the Google PageSpeed API that allow one to track the performance of a site over time?
4
votes
2answers
361 views

jQuery/AJAX on old Computers/Browsers

I am working on a plattform that will have a lot of users in the so called "developing countries". So many of them will be using old computers and old browsers in tiny internet cafes. We want to make ...
4
votes
3answers
438 views

Webmaster tools site performance - reliable measurements

I am measuring a few sites and use both webmaster tools and analytics to track various aspects. One of the aspects I try to measure and track is performance. I am getting a much more reliable ...
4
votes
2answers
3k views

How does server connection speed affect website performance?

A web host I'm considering quotes their server connection speed for their basic package as '15Mb/s burstable.' They offer an upgrade to a more expensive package with a '35Mb/s burstable' speed. I ...
4
votes
2answers
53 views

Will using Google's PageSpeed module help to speed up a site with Magento?

I'm considering installing Google's PageSpeed module on a Debian Linux / Apache 2.4 web server to speed up a Magento CE website. Will using Google's PageSpeed module help to speed up a website using ...
3
votes
9answers
278 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 ...
3
votes
4answers
2k views

Using Amazon S3 has increased the page load time? Why?

I am optimising the page load time for my site. After a bunch of changes, the load time had decreased. As suggested by a lot of people, I decided to use Amazon's S3 to store and serve my static ...
3
votes
2answers
2k views

What is the default behavior of Cache-Control

If no private nor public were defined in the cache-control, e.g. Cache-Control: max-age=31461276 What is the expected behavior?
3
votes
2answers
1k views

Is it good to refresh a page after a fixed interval?

I seen many sites which are refreshing their pages after a fixed interval. Sometimes it is 1-2 mins only. If i refresh a page after every 5 mins. It'll helpful to notify user with updated contents. ...
3
votes
4answers
271 views

WordPress MySQL Performance

I have a website (www.americanbankingnews.com) that gets 40,000-50,000 page views today. It's currently sitting on a dedicated quad-core Xeon server with 8GB of ram. The site is powered by WordPress ...
3
votes
1answer
82 views

Can minifying the html of page have a negative effect on seo?

Ive been reviewing the speed of a site using google page speed one of the things it told me to do was minify the html of the page. Im fine with this but by minifying the html (or any other markup or ...
3
votes
1answer
192 views

What if one certain page is much slower than the rest of your website?

I have a very fast website, but there is one overview page that queries a lot and takes 16 to 17 seconds to load. Will this have an impact on my SEO?
3
votes
2answers
2k 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 ...
3
votes
3answers
615 views

How to limit the FTP bandwidth for one user?

I have no experience in webmastering, so sorry if it is a simple question! I have a VPS and about 30GB files on it and I am trying to download them to my PC. So for transfering them I made an FTP. ...
3
votes
2answers
8k views

Slow website response? How can I fix this issue?

I have pingdom monitor on my website: http://stats.pingdom.com/t68xhgex256f/375513 For North America (big target market) the response time is 1-2 seconds. This is far too slow. Is there anything ...
3
votes
3answers
155 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 ...
3
votes
4answers
1k views

How to replay traffic to web server from logs to profile / benchmark web app under real load?

Is there a way to get recorder real network traffic to web server, e.g. from web server logs (Apache), and replay this traffic to either profile web application (in Perl) under real load, or benchmark ...
3
votes
2answers
34 views

How to understand results of server load reports

I have performed a load test on on my website but don't understand if the result are good or bad. Here is the server spec: Server Linux/Ubuntu hardware (AMI on Amazon AWS) *-cpu:0 product: ...
3
votes
2answers
5k views

How to find out if my hosting's speed is good enough?

There are lots of different online performance tests: Google PageSpeed Insights iWebTool Speed Test AlertFox Page Load Time WebPageTest Also there are several desktop/client software such as: ...
3
votes
5answers
545 views

How to make US websites faster in China?

We've been troubleshooting our site's performance in China. We've removed a lot of the scripts that were slowing pages down. Two critical things we can't simply remove are Google Analytics and Google ...
3
votes
2answers
234 views

Shared to Dedicated or Amazon CloudFront to improve performances and keep secured?

I have a Wordpress which currently takes about 1.8s to 2.5s for the home page to completely load in my country. The page weight is about 700Ko (static content included). In order to increase ...
3
votes
2answers
382 views

How is fluid theme's impact on rendering performance?

I am new to responsive design and now re-making a template to make it more responsive. This involves redefining many fixed width and fonts as context-dependent percentage (% or em) instead of pixels ...
3
votes
1answer
953 views

SEO for images: can I use a different (cookieless) domain?

We want to increase the value of some of our important images by means of SEO, and we want to start serving them from a different, i.e. cookieless, domain. We want to go from ...
3
votes
3answers
2k views

Track page size of web app for performance

I'm about to start trialling optimisations on my web application (apache & tomcat). My main interest right now is: The total page size (including external js files such as jquery) The number of ...
3
votes
1answer
31 views

How do browsers handle multiple font-faces, when their source is the same?

I know that using multiple different fonts with font-face has a considerable performance implication if the website is already resource extensive, particularly on mobile (although less so, now that ...
3
votes
2answers
372 views

What's the minimum age for a Cache-Control header with Akamai?

We're planning an integration with a CDN (likely Akamai) and are trying to determine how low we could go for a max-age value. For a site that could get a few hundred thousand folks hitting the site ...
3
votes
2answers
427 views

Can using Varnish still help to improve the performance of my site if I already use CloudFlare?

I'm using CloudFlare right now. Can Varnish still help to improve the performance of my site?
3
votes
4answers
2k views

Long 'Wait' Time for three php/CSS files. Is something blocking them?

I have been speed optimizing a Wordpress site to little effect. There are three files CSS-related php files from the Wordpress theme that are delaying page loads on the site. One of the three files ...
3
votes
1answer
4k views

JMeter: how to asign a single distinct value from CSV Data Set Config to each thread in thread group?

I have to make a load test for a relatively large number of users so I cant really use User Parameters pre-processor to parametrize each thread with custom user data. I've read that I should use CSV ...
3
votes
3answers
5k views

Where to store large amounts of images for my site?

If i would want to deploy a site, like ebay, where people will be able to sell something, i would need to store large amounts of images, like many thausends of them and i would need to display about ...
3
votes
2answers
3k views

why is my site slower with amazons cdn?

so I have move most of the static objects to amazons Cloudfront CDN example: http://images.storyfollower.com/images/cycleOfStories.jpg which through cname point to the cdn Now I just ran a speed ...
3
votes
2answers
180 views

What is the easiest and fastest way to get statistics of a webservice response time?

I implemented a webservice with node.js and want to test its response time. I don't just want to do the test with one connection attempt, but I want statistics about multiple attempts, telling me the ...
3
votes
3answers
164 views

Does background video affect SEO?

Does the extra loading time that a background video has, affect SEO? Or that does not really affect it because the HTML already loaded and the video is just streaming after? Does it make a difference ...