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
votes
1answer
12 views

Separate server for images?

Should I be using a separate server for hosting images that are created on a website? For example, my application creates images and currently stores them on the same server. I have around 200k+ ...
1
vote
1answer
24 views

Can a later DocumentRoot directive override an earlier DocumentRoot directive?

Because I use cPanel, the WHM developers are trying to restrict my subdomain creation to any folder within my user account of /home/username. In order to improve processing speed, I created a ram ...
1
vote
1answer
37 views

Speed of prefork+ruid2 with more connections on limited memory

Currently I am using Apache in a server with WHM/Cpanel and I'm currently using Prefork MPM with Mod Ruid2 to process PHP pages. While the setup allows it to run very fast, I'm limited to processing ...
1
vote
2answers
49 views

Is there a performance difference between background-size:cover and background-size:100% auto?

I know what the difference is between background-size: cover and background-size: 100% auto. I'm curious if there is a performance difference between the two and which one would be preferred?
11
votes
4answers
6k views

How can I measure website page load times from different countries? [closed]

Recently, I migrated one of my personal projects into cloud and hosted the app on UK based servers. I reside in Turkey and I would like to see how long it takes for my pages to load for UK based ...
3
votes
1answer
33 views

Do AdSense policies allow loading ads in the window load event?

The official help does not mention such modification, but people mention this solution at various places on the net, saying they do this for quicker page load. How can one be sure that it's an ...
4
votes
1answer
89 views

Can minifying the HTML of page have a negative effect on SEO?

I've been reviewing the speed of a site using Google PageSpeed, and one of the things it told me to do was minify the HTML of the page. I'm fine with this, but by minifying the HTML (or any other ...
1
vote
2answers
48 views

What is an appropriate total page size for a homepage, including full-screen background images so that they load fast but don't look blurry?

I am in a dilemma. My customer wants to put several nice pictures as a background on Homepage, each of them being 1200 x 650 and sized about 1.5MB. I tried to compress them to a reasonable size at ...
1
vote
3answers
84 views

Is it better for SEO to use margin or padding around images?

I'm trying to style the distance of text around images and I've experimented with margin and padding. For testing purposes I tried 100px around images and what I have seen is that with padding the ...
1
vote
2answers
61 views

Putting CSS/JS in header for faster load times

I've been reading many articles lately about SEO on load times. Trying to get the perfect load time can be quite time-consuming but also a good feeling when you see your site loading twice as quick. ...
3
votes
1answer
28 views

Why does loading of an external “async defer” javascript code happen before page load?

Recaptcha recommends loading of its script like this: <script src="https://www.google.com/recaptcha/api.js" async defer></script> I added this to the head section of the html document ...
6
votes
1answer
127 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 ...
0
votes
2answers
60 views

What CDN features are the most important when picking a CDN provider?

Price and a number of PoP's surely do matter. But if I was after choosing one CDN provider out of 10 similar ones, what CDN features would be the most important? Which ones do really matter for ...
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: Intel(...
1
vote
0answers
13 views

Some animated Adsense ads prevent the rest of the page from functioning

I've had this problem for the best part of 3 months now. Since doing a major update in March, some recurring ads make the site unusable. I've requested help on this issue multiple times but nobody has ...
1
vote
1answer
33 views

Why do website speed testers show different page sizes each time I run the test?

I'm using tools.pingdom.com for a website page speed tester which returns 4 metrics (Perf score, Requests, Load time and Page Size). I understand that servers may be under varying loads and ...
3
votes
1answer
36 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 ...
0
votes
0answers
24 views

Fastest .htaccess redirect from example.com to www.example.com?

Now using the standard cPanel-created Apache .htaccess redirect, but it's taking a full 2 seconds to go from ´example.com´ to ´www.example.com´. Is there a faster method? Or should I let go of the ...
11
votes
5answers
2k views

Blank image. What to use: Base64 vs 1x1 JPEG image

I am building a website and I want to make HTTP queries as few as possible for a better website speed and seo. The page I just created is showing images on scroll (images have an attribute data-scr ...
1
vote
0answers
51 views

Can images be combined using the clip CSS Property while still maintaining image SEO and semantics?

I have two images in my web page. Actually there are 20 but I want to keep things simple: <div> <img src="apple.png" alt="Apple" /> <img src="orange.png" alt="Orange" /> &...
1
vote
1answer
23 views

Is a .htaccess rewrite rule a potential performance issue?

I use a .htaccess rewrite to redirect: RewriteEngine on RewriteBase / RewriteCond %{REQUEST_URI} !^/redirect-to-this-subfolder/ RewriteCond %{HTTP_HOST} ^(www\.)?domain-to-redirect-to-subfolder-of-...
1
vote
0answers
22 views

Will deleting font files make my website run faster even if it causes multiple (and more) zero byte requests for the missing files?

I have a file that is part of my website template with a size of 55.8 kb. I want to lean down my website and make it run faster. I can prevent that file from loading by deleting it. When that happens,...
1
vote
1answer
20 views

Do any important SEO robots (such as search engine crawlers) rely on IP addresses anymore to identify websites?

Currently, I have it where anyone who attempts to access my server IP address as a website (example: http://nnn.nnn.nnn.nnn) will be redirected to a domain name with the original request URI appended. ...
0
votes
1answer
701 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 ...
1
vote
1answer
66 views

Why is this mobile/image Googlebot crawl rate so fast? (10-30 req per sec)

This morning in logs I noticed a user got rate limited by our throttler 3 times within 1 second (429 too many requests error) at 3:30:11 AM EST: Mozilla/5.0 (Linux; Android 6.0; GCE x86 phone Build/...
1
vote
1answer
37 views

Is webpagetest.org unreliable with mobile testing? I'm trying to get accurate results

I use webpagetest.org to test my website very often. When I used a couple of remote desktop computers on their site, my TTFB (time to first byte) measures between 1 and 400ms. However, on nearly all ...
1
vote
0answers
26 views

Using SetEnvIf to not log overly accessed URLs

I'm trying to figure out how to craft my SetEnvIf's in my apache config so that the server hard disk isn't spinning 24/7 over log entries. What I want to do is disable logging for all domains and ...
40
votes
6answers
5k views

When webservers send a page, why don't they send all required CSS, JS, and images without being asked?

When a web page contains a single CSS file and an image, why do browsers and servers waste time with this traditional time-consuming route: browser sends an initial GET request for the webpage and ...
64
votes
10answers
33k 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?
2
votes
1answer
57 views

Which version of my site is preferable for SEO

As you can see from the graphs below, the blue version shows content sooner, but the overall page load is slower. Thoughts?
5
votes
0answers
82 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. ...
1
vote
0answers
22 views

Why is my httpd so busy? [closed]

I have a simple Wordpress site on a VPS that isn't performing well. AWStats says: ~ 500k page views per month: ~ 50-80k unique visitors per month ~ 500-800 GB bandwidth per month (...
1
vote
0answers
16 views

Page speed performing poorly specifically on OS X versions of Chrome. What gives?

I'm digging into page speed within my Google Analytics, and saw that I'm having higher than average load times with Chrome, which was unexpected. Digging in further by operating system, the issue ...
0
votes
2answers
85 views

How can I tell Chrome to use all 6 concurrent connections asap?

I would like to improve rendering performance of http://www.camping.info/campinplaetze. Running a test on WebPageTest.org I see in the waterfall chart that for images loaded from http://images-camping....
3
votes
3answers
192 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 ...
2
votes
1answer
118 views

any way I can fix this cphulk situation?

I should probably sue the cpanel guys right about now. The point is, I'm receiving all these strange messages in my logs about cphulk (brute force detection system) not being able to do its job of ...
1
vote
1answer
38 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 ...
2
votes
1answer
91 views

From which file size is it worth to implement images as Data URI?

As the title says: for site speed up sake it is good to implement small images like Data URIs directly into HTML source code, like inline CSS (background image url), or with usual img src. But from ...
1
vote
0answers
11 views

change cpanel log file location

Is there a way in some configuration file to specify a new folder to put all the cpanel log files in, or is there a way to specify new log file names for each log? I ask this because I want to store ...
4
votes
2answers
56 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 ...
1
vote
0answers
34 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 ...
1
vote
1answer
32 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 ...
0
votes
1answer
20 views

What client on webpagetest.org is equivalent to googlebot client?

I made various speed tests to my website via webpagetest.org and I used a mobile network in California (which I believe is the closest one to google) to measure the speed of my site. It reports the ...
0
votes
1answer
36 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] ...
2
votes
1answer
36 views

Data center locations for hosting an international website

My web site is currently hosted in the US in NYC and SFO data center locations. I'm not too familiar with DNS, but both IP's point to my domain and the visitor's computer probably would pick the DNS ...
2
votes
2answers
30 views

What consumes less resources on the client side, an animation with gif or CSS?

What is better for the client side, an animated gif or the same animation done as a sequence of images with CSS ?
1
vote
1answer
73 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 iNavStart=performance....
2
votes
4answers
965 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 ...
1
vote
1answer
23 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 ...
2
votes
2answers
70 views

How to analyse website performance

I've tried searching a lot and basically here is the problem. I have a website but I'm unable to pin point the reasons of why the performance of the website is so slow. We have shifted to a high end ...