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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205 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 ...
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3answers
101 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 ...
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1answer
20 views

AMP version of entire website

I read about Google's AMP(Accelerated Mobile Pages) and I think it is a nice initiative. But I can't really determine the use of AMP for our website, since to me it seems more for article and product ...
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1answer
18 views

Javascript page load time calculation returns negative

<script type="text/javascript">//<![CDATA[ // jQuery has already been loaded but this could be equivalent to // a function in <body onLoad=""> $(function(){ var ...
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1answer
53 views

Many requests in my logs to the same obscure page from Opera Mini. What can be the explanation?

I checked my site's logs and I found 20 thousand requests on the same day all to an obscure page of my site. The IP address of the requests belong to Opera Mini. Can someone explain this? I would be ...
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3answers
94 views

How to test the speed of my server inet connection?

The connection speed our webapp is showing (from my office) is much slower than my connection speed to a SpeedTest.net site in the same city. I can test my internet using SpeedTest.net to Houston ...
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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 ...
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2answers
439 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 ...
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1answer
963 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 ...
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1answer
239 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 ...
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1answer
20 views

Streaming Vs Downloading Site Load Speed debate

We have a number of sites that use bg video - currently the video file (1.4mb) is loaded from the server and increases page load. My question is whether streaming the video on loop via Vimeo or ...
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1answer
25 views

Forcing website icon to load early in all web browsers

My goal is to allow a small keepalive timeout (of about 3 seconds) with a max of about 5 requests, just enough for the page HTML, page assets, and the page icon. So far, every browser loads nearly all ...
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1answer
34 views

Full Boostrap from CDN vs custom version from own server

The last few versions of Twitter Bootstap can be customized to include only the components you need. The full version, with all the components, can be served from a wide variety of public CDNs ...
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1answer
38 views

What are the performance implications of loading static files as links vs. sending everything (including static files) inline

I was wondering what would be faster: Loading Static Files vs. Sending everything (including static files) in one HTML file? For example if I had a page that needs: jQuery font awesome CSS I ...
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1answer
744 views

Can .htaccess be used to cache AdSense JavaScript to improve the pagespeed score?

I'm AdSense publisher and I need to improve the page speed score for my site. It already gets 90/100 for speed and 100/100 for User Experience, however Google AdSense code is preventing it from ...
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1answer
159 views

Why does bingbot access my sites the most even if I set crawl rate to the minmum?

Recently my sites got overloaded and it turned out bingbot was the culprit. I set the crawl rate for the minimum for my sites in bing webmaster tools, but regardless bingbot has the most access (about ...
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2answers
59 views

How do I pick a host with the fastest access to a third party API?

I'm developing an application that relies on an API that is very time-sensitive. Every millisecond advantage I have over my competitors the better. Is there a good way to determine the optimal ...
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1answer
37 views

What kind of increase can I expect from improving site speed

I have a pretty slow site. This is what WMT measured: Now I know speed is a factor in SEO, but considering it is very difficult to make the site faster, I'm trying to evaluate the ROI of this effort. ...
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1answer
249 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 ...
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1answer
2k 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 ...
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2answers
294 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 ...
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1answer
301 views

Does just-ping determine a website's accessibility and/or speed?

While looking for a webhost I wanted one that had good connectivity around the world, and ran their (shared hosting) test IPs on just-ping.com. This is a part of a sample result: München, Germany: ...
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1answer
2k 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 ...
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1answer
164 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 ...
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1answer
101 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 ...
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0answers
16 views

How to prime cache on all location of a cdn

I have just started using MaxCDN to serve static resources faster (images, js and css mostly). It works great, as long as the data is cached on the cdn's location that is close to where I live. But ...
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1answer
23 views

Which does google prefer: chained redirects or longer time-to-first-byte?

I'm clearly a webpagetest.org addict now. Once again, I tested my site after optimizing (by eliminating some file scans) and the speed greatly improved. It's now at about 150ms Time to First Byte from ...
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0answers
29 views

How to know if visitors are experiencing a good performance from the server? [duplicate]

Sometimes I visit my wordpress website on godaddy, and looks like the site is slow. But when I refresh it goes fast. I wonder how often this occur to my visitors on the month. Is there a way to know? ...
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0answers
35 views

Performance: 4096 Bit RSA-Key compared to 2048 bit RSA-Key

Is there a comparison between 4096 Bit RSA-Key and a 2048 Bit RSA-Key? Id like to know what impact on performance it has, if Im choosing a 4096-Bit key for ssl-encryption. Is there any info which ...
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1answer
263 views

How to manage the leverage browser caching for third party JS files? [duplicate]

Is it possible to set and expiration date for the file http://assets.pinterest.com/js/pinit_main.js? And the other stuff down the list? I want to bring up my score as high as possible. I'm using ...
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0answers
55 views

CSS Above or Below Body for Speed? [closed]

I just have a genuine question, should I put any CSS above or below the body tag (maybe for Javascript too?), and what are the pro's and con's of each method? and what's the (dis)advantages of using a ...
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1answer
164 views

Does the load time of an XML sitemap matter?

I have a dynamic sitemap that will change on a daily basis. Because I'm hosting on Heroku, I'm having some difficulty getting it to persist. I'm considering having the sitemap generate on request, ...
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0answers
56 views

Website Speed Index for SPA applications

I have a large SPA website, when measuring performance is there a standard metric to measure the time to transition between virtual pages? I know about speed index, but that only seems to cover ...
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1answer
73 views

Website Performance Testing Tools [closed]

I have a contract before me that says our client will use "the following metrics will be used to determine performance standards" of the MVC4 based web site we want to deploy for them. I am looking ...
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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 ...
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2answers
121 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 ...
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0answers
24 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 ...
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0answers
122 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 ...
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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 ...
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1answer
4k 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 ...
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1answer
960 views

Long time to first byte for static content

I have large time to first byte for static content on IIS 7.5, it's not site specific it's slow for all sites on that server. Web.config setting runAllManagedModulesForAllRequests is set to false, and ...
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0answers
34 views

SEO/performance - building blog article page [duplicate]

Possible Duplicate: What are the best ways to increase your site's position in Google? I've been using WP up and until now, but want to spread my wings and build a bespoke blog for my ...
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1answer
444 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 ...
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1answer
55 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 ...
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2answers
100 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 ...
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2answers
2k views

Can I defer loading Modernizr?

I'm using an HTML5 template that makes thorough use of the semantic tags and includes Modernizr up top to do the necessary IE coaxing. Google PageSpeed is complaining about the blocking JavaScript and ...
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4answers
2k 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 ...
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1answer
18 views

Can rewriterules work without carets or dollar signs?

Currently when I remap my friendly to non-friendly URLs on my website, I normally use lines like these in my .htaccess: RewriteEngine On RewriteCond %{ENV:REDIRECT_STATUS} !^$ RewriteRule .* - [L] ...
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3answers
118 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 ...
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1answer
951 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 ...