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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0
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1answer
732 views

Slow DNS lookup on my site?

I'm testing the loading speeds of my website. I've just done a test using Pingdom but it returns some strange (at least to me) results: By the looks of it getting the DNS info takes the most time. ...
1
vote
1answer
379 views

What could be preventing Google Chrome developer tools' audit from completing?

I'm trying to run Chrome developer tools' audit on http://www.zmxmusic.com, and it never completes... just gets up to about "Loading (61 of 61)" with the spinner but never shows the results. If I ...
3
votes
1answer
836 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 ...
1
vote
1answer
1k views

How to find the Fastest DNS servers to host our domain?

The question was born because lately we've seen a pretty odd (well, at least for us, for the first time) - error message in Google webmaster tools - "DNS lookup timeout" ... I was pretty sure that ...
0
votes
1answer
468 views

Fastest open-source e-commerce featured CMS or web-framework?

I have been researching about 20 different open-source e-commerce featured CMSs and web-frameworks, but there seem to be way more than just them available. Has anyone run some benchmarks against a ...
2
votes
2answers
483 views

What latency do you expect when serving static files?

I'm running some latency measurements using Web Page Speed Test on a static javascript file. I compared hosting the file at four locations: Host Monster, Amazon S3, Amazon Cloudfront, and Heroku ...
0
votes
1answer
139 views

Question about web hosting speed

I started using a VPS with HostGator not long ago, they have 9 levels of VPS and I started out with level 3. I'm testing a page on the website and it doesn't take too long to load, something like 2 ...
2
votes
1answer
1k views

Everything needed to run a high-traffic web site

I'm an experienced front-end web developer, while my back-end experience has occurred only within the context of Drupal. Basically, the deeper things go into the back end, the more inexperienced I am. ...
7
votes
4answers
295 views

When is it time to move on from WordPress?

My company's blog it closing in on 30,000 posts and get around 1,000,000 visits a month. Things seem slow even though we have a good server. At what point to you move on from WordPress or does it not ...
0
votes
1answer
61 views

How to log the ASP pages requested during a particular time span?

I have a web application build in ASP and is hosted on IIS7 windows server 2008. Each day CPU level increases and the application stops responding (ASP pages don't load for ever, however an HTML page ...
6
votes
2answers
522 views

CDN solutions pros and cons

As the sysadmin in our organization I've been asked to look into CDN solutions as we have plans to roll out a web platform that is targeted at developing countries. Here is my research so far on the ...
2
votes
1answer
215 views

Set expiry date for image or resource

How do I set expiry date for an image? Is this a server side operation or can it be done as an html tag attribute? What if I only want to set different expiry dates for different images/resources?
7
votes
2answers
2k views

is it true that CloudFlare really doesn't affect dynamic content?

I've been reading the CloudFlare FAQ, I understand that is acts as a reverse proxy and all requests to your domain will go through CloudFlare. They say in the FAQ that it won't slow down dynamic ...
1
vote
1answer
53 views

Choose from client best server to download from

My web site has a download of a file of about 10Mb. I can have it stored in more than one server and was thinking of a way to offer the download to the best performing server (performance measured ...
4
votes
2answers
217 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 ...
11
votes
1answer
396 views

When and when not to use a CDN

I'm working on a web-application that loads a couple of small gif images onto the screen. I'm using a relative path, which means they are loaded from the same web server that serves the php page. The ...
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 ...
4
votes
2answers
2k 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 ...
3
votes
2answers
6k 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 ...
6
votes
2answers
3k views

Cache external static scripts?

In my never ending quest for a faster website, I thought perhaps I could cache some scripts. I'm using Yslow to rate my site, everything is pretty much A (which is great, our website on Pingdom loads ...
10
votes
1answer
708 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 ...
5
votes
2answers
756 views

How is this site so fast?

how is the website http://dftba.com/ so fast? when i click a link it loads right then? what makes it work like this? how do i make it work like this on my site? some of the objects on the site are ...
3
votes
3answers
136 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 ...
1
vote
1answer
98 views

testing random pages for uptime (part of an SLA)

We have outsourced hosting of a large website. We have an SLA for response times of random pages. I.e. every minute a random page will be chosen from a pool of 30,000 pages and its response time ...
14
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 ...
3
votes
2answers
772 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 ...
5
votes
2answers
171 views

Do heavy graphics and/or a high load time affect a site's search rankings?

Does the use of heavy graphics/images (with img tag or in the CSS) effect a site's Google ranking? Sometimes sites are heavy because of the images used or Flash or lots of JavaScript - making the ...
4
votes
2answers
501 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 ...
1
vote
3answers
98 views

If my web application is under a server will it perform better than if it is under a shared hosting?

Assuming that I have build an application using PHP, let's say something like vBulletin or assume that I will install the vBulletin itself. Will it performs better if it is in a VPS rather than a ...
3
votes
2answers
166 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
1answer
59 views

Statistics about development of average connection speed and latency over the years

Are there any statistics about the development of average internet connection speed and request latency from households to major sites over the years? I find this information very useful for ajax ...
4
votes
1answer
514 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: ---------------------- ...
2
votes
3answers
377 views

Website has “lagging” effect. Causes? Tips and tricks to fix?

So I have this site here which has major performance issues. Scrolling is very slow, hover effects have a bit of lag and other similar issue. Unfortunately right now I am working off a cheap host so I ...
3
votes
4answers
267 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 ...
0
votes
3answers
113 views

Load times and SEO for 1 page sites

I find that 1 page sites can be interactive animating from page to page. But if a site starts to get a little larger or contains many images, perhaps an image gallery, it loads slowly. Also its not ...
2
votes
0answers
84 views

How to make sure that my web application would be stable? [duplicate]

Possible Duplicate: How do you load test your application? Hi, I have finished 95% of my web application. Now, I would like to make sure that the website is stable even with 5000 or more ...
7
votes
1answer
501 views

How is Apple's enormously image-heavy site served so fast?

Took a profile of the "Smart Cover" page on Apple's site using Pingdom. It's requesting 241 objects for a total page weight of 3472.6 KB! An absolute mammoth. How does this possibly translate into ...
1
vote
1answer
220 views

Critique of SEO of this HTML [closed]

I'm designing a new site which I want to be as SEO friendly as possible, fast and responsive, semantic and very accessible. A lot of these things, embarrassingly are quite new to me. Have I miss ...
3
votes
0answers
225 views

How to test high load on a website? [duplicate]

Possible Duplicate: How do you load test your application? Hi, I am nearing a point of finalizing a website and it will soon be released. We have bought some traffic and advertisement ...
0
votes
3answers
221 views

Raw coding vs Joomla / Drupal

Currently my sites pages load in about 500ms. The HTML, CSS, JavaScript, PHP, Python, Perl, and SQL queries are totally not optimised. If I recreate the site using Joomla, will my site slow down?
6
votes
5answers
6k 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, ...
11
votes
3answers
26k views

What's the best FREE CDN service available? [closed]

It seems like using CDN is a best option to provide users a great browsing experience. But, plans of the major CDN providers seem costly. So, I would like to get used to the CDN thing before I ...
1
vote
2answers
95 views

Service and/or tool to monitor performance?

I am seeing wildly different performance from a clients web site, and would like to set up some sort of monitoring. What I'm looking for is a service that will issue requests to a couple of URLs, and ...
3
votes
2answers
515 views

KPI's for Webmasters

Do you know any Key Performance Indicators for Webmasters? What should be measured and monitored?
3
votes
1answer
718 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 ...
0
votes
4answers
1k views

Best way to have both HTTP and HTTPS communication in a web application?

I am considering using both HTTP and HTTPS in a web application and I am looking for tips to accomplish this best. The application will run under Tomcat. I have also seen the following about HTTPS ...
3
votes
3answers
1k 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 ...
1
vote
2answers
459 views

web page performance testing in Internet Explorer

How can I get the web page load speed and data amount in Internet Explorer? I know about PageSpeed and Firebug for Firefox, is there an equivalent of those tools for IE?
0
votes
1answer
64 views

Is there any overhead on making my webapp traverse more folders?

I understand there is a need of placing different categories of resources in separate folders for the sake of organization. But is there any noticeable decrease in page load speeds accompanied with it ...
3
votes
4answers
969 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 ...