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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3
votes
4answers
982 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 ...
0
votes
1answer
55 views

Determining cause of random latency and loading issues

I'm not sure exactly what details to post in regards to my issue, because I'm not sure what is relevant. Prior to the end of September my websites all loaded quickly, in almost all cases. Loading ...
1
vote
0answers
35 views

Increasing server speed(More info in question) [closed]

So I have recently been employed as a webmaster at a local High School, and I have walked into a nightmare. Their are 3 servers which hold about 300 WordPress/wiki sites for all the teachers. As well ...
1
vote
1answer
179 views

Using a CDN for CMS software (multiple sites)

I'm currently researching ideas for the media management side of a CMS I'm writing. I was looking at having images served from a CDN which is fine on a single site, but I want all sites that run the ...
1
vote
2answers
111 views

Google Analytics Site Speed - iOS not being sampled

I'm looking at a breakdown of site speed by operating system in Google Analytics to get a sense of mobile vs desktop load times. The problem is that it looks like GA doesn't really collect speed ...
2
votes
2answers
581 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 ...
2
votes
1answer
435 views

PageSpeed - Minimize DNS lookups: why not use IP address for resources

One of the recommendations from web performance optimization services is to minimize DNS look ups. I fully understand why they recommend this but why not just point references to external files to ...
0
votes
0answers
43 views

What to use for rapid PageSpeed analysis — Google Insights or Chrome extension?

Which score is most reliable (and complete) to use when comparing different sites and pages to get a quick idea (e.g. between competitor websites without detailed analysis)? I am asking because for ...
1
vote
1answer
1k views

Plesk: View system resources (e.g., RAM, CPU, etc…) for a VPS

I've setup my first VPS. Previously I've always been hosting my projects on a shared hosting account. I run a couple of little personal projects on the VPS, including one that is continuously scraping ...
1
vote
0answers
23 views

Advice scaling website [duplicate]

We could use advice on a scaling/ops issue. We have a simple website that runs on Rails 3.2.12 and uses MongoMapper instead of ActiveRecord. There is one database call that sporadically performs ...
1
vote
0answers
113 views

Open Source website performance monitoring [closed]

I am looking for an Open Source solution to monitor my web sites' performance over time. More specifically, I am looking for something I can run on a server that will (on a continual basis) monitor ...
2
votes
3answers
57 views

Using one document for all images

I have some icons around 100x100. I typically save out each icon as a .png but I wanted to know if I included all the .pngs in one document would it be ideal and improve load time? If one document ...
2
votes
3answers
87 views

Async load of secondary content; Google says “slow”, users see what they want faster

We have a performance problem on our site, and we're digging in to correct some rather basic issues -- we know we have many opportunities to improve performance -- this question is about one, in ...
3
votes
2answers
1k 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 ...
2
votes
1answer
107 views

Why is there a huge gap before in my WebPageTest after the HTML has been downloaded?

I am trying to improve front-end performance of my website, and there is a 3.5 second lag before the user actually sees anything, and I'd like to improve this. Here is a screenshot: And here is the ...
2
votes
1answer
86 views

Server comparisons - Comparing servers based on their specs

We are busy creating a server hierarchy manager (possibly not the greatest name). What this is intended to do is determine which of our servers is the best for doing work. We have identified the ...
3
votes
1answer
2k 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 ...
2
votes
1answer
87 views

Need a study about average latency due to HTTP request and server processing time when downloading images that are a part of DOM

I'm writing a thesis about css sprites and need to know the of the average HTTP request overhead when establishing a connection to download an image file that is a part of DOM. We conducted a study ...
17
votes
4answers
2k views

Why is loading speed of a website important for SEO?

I see everywhere on the internet how to optimize loading speed of a website but no one says why it's important for SEO. Inevitably, there are reasons why Google has decided to take this factor into ...
4
votes
5answers
955 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
1answer
169 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 ...
0
votes
1answer
68 views

Effects of Active Virus Scanner on WebApp for XS Azure VM

Suppose a public WebApp is hosted on an EXtra Small (XS) Azure Virtual Machine (VM). What benefits and/or performance problems might visitors experience if a Memory-Resident Virus Scanner is run on ...
2
votes
1answer
269 views

Internal CDN and setting up subdomain to increase maximum parallel connections

I've heard that browsers can have around maximum of 6 parallel connections per domain at a time. So I decided to have another subdomain "cdn." then use mod_rewrite to point to media folder then ...
2
votes
1answer
88 views

CDN for site with target market in Australia

I was told that http://www.edgecast.com/ is very good CDN provider for Australian market. I have a cloud server based in Sydney Australia but was wondering whether it's even worth getting cdn as my ...
2
votes
1answer
60 views

Slower site with the *same* configuration than a mirror copy…?

I've got this Drupal site (ligadelconsorcista.org) that I have to move it from one server to another. The reason was that my older host even when it was pretty decent, it started a couple of months ...
1
vote
0answers
16 views

Impartial comparisons on cloud / shared-hosting speeds with different providers [closed]

Are there any impartial comparisons on speeds of cloud hosting or shared hosting from different providers? I've googled and found a few snippets of info, but not sure that they're impartial ...
1
vote
1answer
3k views

How to specify expiration of cacheable resources?

I'm trying to speed up a wordpress site -- this site: http://richardclunan.net I'm following the observations here: http://gtmetrix.com/reports/richardclunan.net/9ps7Zc0j The first item says: "The ...
2
votes
2answers
1k 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?
1
vote
2answers
234 views

Benchmark for website speed optimization

I working on website speed optimization. I mostly used 3 tools for analyzing speed of optimization. Speed analyzing Tools: Google pagespeed tool Yslow Firefox extenstion Web Page Performance Test ...
5
votes
4answers
336 views

Strategies for very fast delivery of webpages

I run a website Cucumbertown with an initial pay load of nearly 9KB zipped. All my js is delayed loaded with requirejs and modernizer is the only exception. Now all my webpages are Nginx cached ...
2
votes
4answers
1k 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 ...
2
votes
4answers
788 views

Google bots are severely affecting site performance

I have an aggregate site on a linux server that pulls in feeds from a universe of about 2,000 blogs. It's in Wordpress 3.4.2 and I have a cron job that is staggered to run five times an hour on ...
3
votes
2answers
225 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
3k 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: ...
0
votes
0answers
66 views

Logging what was in the content of a page

I'm one of the people working on a Java based website that has the apache httpd in front of it. The content on the pages is migrating towards personalizing the content and as such just about every ...
0
votes
3answers
107 views

images based website speed

I have a wordpress site which 90% is based on images. I've installed Wp-Super-Cache, now it seems to load a little bit faster. I've made a speed test on Pingdom Tools: Page size 4.7MB Load time ...
3
votes
2answers
292 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 ...
1
vote
2answers
1k views

Looking for WAMP/LAMP/MAMP Benchmarking

I'm running ZWAMP WAMP stack on my local development machine. However I have found it to be very slow at serving pages from a Drupal site I have setup. By contrast, my live production site on shared ...
2
votes
1answer
42 views

Do private collaboration platform really need private file access? [closed]

I need to make private collaboration platform, where the website is not open to public registration, and all the posts is only accessible by the members. The members is management team of a company. ...
14
votes
1answer
5k views

What is recommended minimum object size for gzip performance benefits?

I'm working on improving page speed display times, and one of the methods is to gzip content from the webserver. Google recommends: Note that gzipping is only beneficial for larger resources. Due ...
1
vote
1answer
179 views

Do or can robots cause considerable performance issues?

At work we are in a discussion with team members who seem to think bots will cause us problems relating to performance when running on our services website. Our setup: Lets say I have site ...
1
vote
2answers
416 views

wordpress sites are slow on shared hosting but plain html/css sites are fast

I've got a shared hosting account, unlimited sites, unlimited GB, unlimited bandwidth etc etc. Of course because it's shared and a cheap one at that - there's too many sites on each server and it ...
4
votes
1answer
320 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 ...
0
votes
1answer
750 views

Parallel downloading of JavaScript files on page load

Below is a quote from one of the Yahoo performance pages: While a script is downloading, however, the browser won't start any other downloads, even on different hostnames. When I look at page ...
1
vote
1answer
809 views

HTML compressor/minifier

Currently I am using a system where HTML gets cached server-side before it's sent to the browser. I'm looking to compress the HTML source of my website before it is cached. Basically I'm looking for ...
0
votes
2answers
294 views

Hosting a small e-commerce website from home. Recomended? [duplicate]

Possible Duplicate: How to find web hosting that meets my requirements? I live in the UK and I current use JustHost to host several domains. I think they are very reasonable but recently ...
0
votes
1answer
629 views

check server speed / response time

I was reeled in by cheap, unlimited hosting. (Well, kind of cheap apart from having to buy a year upfront.) The moral of the story is it's awful. I'm trying to find a reason for them to let me leave ...
3
votes
3answers
3k 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 ...
4
votes
3answers
420 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 ...
0
votes
3answers
118 views

Have SQL reports on separate database than same database that is serving web app?

We use SQL reports in a .NET web application, but some of our reports are heavy and involve more table join and columns. As you know we cannot index all the involved columns (performance problem). ...