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Web Page Speed Report - WebSiteOptimization.com

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Web Page Speed Report

URL:http://innovaatioyliopisto.info/
Title:Aaltoyliopisto.info
Date:Report run on Mon Jun 15 06:22:05EDT2009

Diagnosis

Global Statistics

Total HTTP Requests:14
Total Size:245342 bytes

Object Size Totals

Object typeSize (bytes)Download @ 56K (seconds)Download @ T1 (seconds)
HTML:10114 2.22 0.25
HTML Images:65966 13.75 0.95
CSS Images:28144 6.81 1.35
Total Images:94110 20.56 2.3
Javascript:133645 27.24 1.31
CSS:7473 1.69 0.24
Multimedia:0 0.00 0.00
Other:0 0.00 0.00

External Objects

External ObjectQTY
Total HTML:1
Total HTML Images:3
Total CSS Images:6
Total Images:9
Total Scripts:3
Total CSS imports:1
Total Frames:0
Total Iframes:0

Download Times*

Connection RateDownload Time
14.4K 192.95 seconds
28.8K 97.88 seconds
33.6K 84.29 seconds
56K 51.70 seconds
ISDN 128K 17.77 seconds
T1 1.44Mbps 4.10 seconds

*Note that these download times are based on the full connection rate for ISDN and T1 connections. Modem connections (56Kbps or less) are corrected by a packet loss factor of 0.7. All download times include delays due to round-trip latency with an average of 0.2 seconds per object. With 14 total objects for this page, that computes to a total lag time due to latency of 2.8 seconds. Note also that this download time calculation does not take into account delays due to XHTML parsing and rendering.

Page Objects

QTYSIZE#TYPEURLCOMMENTS
1 124136 SCRIPT http://www.aaltoyliopisto.info/js/prototype.js Header size = 286 bytes
Up to 95924 bytes could have been saved through compression. 
1 58445 IMG www.aaltoyliopisto.info ... /media/rotate/TAIK002.jpg Header size = 270 bytes
Missing width attribute.
Missing height attribute.  
1 24635 CSS IMG www.aaltoyliopisto.info ... edia/site_images/logo.png Header size = 269 bytes  
1 10114 HTML http://innovaatioyliopisto.info Header size = 237 bytes
Up to 7408 bytes could have been saved through compression.
View a formatted version of this HTML file  
1 7473 CSS http://www.aaltoyliopisto.info/style/style.css Header size = 267 bytes
Up to 5579 bytes could have been saved through compression.
View a formatted version of this CSS file  
1 7410 IMG www.aaltoyliopisto.info ... a/kuvia/111_pikkukuva.jpg Header size = 269 bytes  
1 6855 SCRIPT http://www.google-analytics.com/urchin.js Header size = 261 bytes
Congratulations! This file was compressed. 
1 2654 SCRIPT http://www.aaltoyliopisto.info/js/scriptaculous.js Header size = 282 bytes
Up to 1320 bytes could have been saved through compression. 
1 1079 CSS IMG www.aaltoyliopisto.info ... media/site_images/pdf.gif Header size = 267 bytes  
1 634 CSS IMG www.aaltoyliopisto.info ... edia/site_images/file.gif Header size = 266 bytes  
1 631 CSS IMG www.aaltoyliopisto.info ... media/site_images/doc.gif Header size = 266 bytes  
1 609 CSS IMG www.aaltoyliopisto.info ... media/site_images/xls.gif Header size = 266 bytes  
1 556 CSS IMG www.aaltoyliopisto.info ... ite_images/menushadow.gif Header size = 266 bytes  
7 111 IMG www.aaltoyliopisto.info ... dia/site_images/arrow.gif Header size = 265 bytes  
1 45 CSS* http://www.aaltoyliopisto.info/style/larger.css Header size = 263 bytes  
14 ^ 245342*   Total (^unique objects)

# Congratulations. This site is using HTTP compression, otherwise called content encoding using gzip. The sizes reported here are for compressed content sent from the server to the client.

* CSS alternate stylesheets may be referenced in the HTML but are not actually downloaded until they are needed and are therefore not included in the total page size.

Analysis and Recommendations

  • TOTAL_HTML - Congratulations, the total number of HTML files on this page (including the main HTML file) is 1 which most browsers can multithread. Minimizing HTTP requests is key for web site optimization. Y
  • TOTAL_OBJECTS - Caution. You have 14 total objects on this page. From 12 to 20 objects per page, the latency due to object overhead makes up from 75% to 80% of the delay of the average web page. See Figure II-3: Relative distribution of latency components showing that object overhead dominates web page latency in Website Optimization Secrets for more details. Consider reducing, eliminating, and combining external objects (graphics, CSS, JavaScript, iFrames and XHTML) to reduce the total number of objects, and thus separate HTTP requests. Consider using CSS sprites to help consolidate decorative images.
  • TOTAL_IMAGES - Caution. You have a moderate amount of images on this page (9 ). Consider using fewer images on the site or try reusing the same image in multiple pages to take advantage of caching. Using CSS techniques such as colored backgrounds, borders, or spacing instead of graphic techniques can help reduce HTTP requests.
  • TOTAL_CSS - Congratulations, the total number of external CSS files on this page is 1 . Because external CSS files must be in the HEAD of your HTML document, they must load first before any BODY content displays. Although they are cached, CSS files slow down the initial display of your page. Remember to place CSS files in the HEAD and JavaScript files at the end of the BODY to enable progressive display.
  • TOTAL_SIZE - Warning! The total size of this page is 245342 bytes, which will load in 51.70 seconds on a 56Kbps modem. Consider reducing total page size to less than 100K to achieve sub 20 second response times on 56K connections. Pages over 100K exceed most attention thresholds at 56Kbps, even with feedback. Consider optimizing your site with Website Optimization Secrets, Speed Up Your Site or contacting us about our optimization services.
  • TOTAL_SCRIPT - Caution. The total number of external script files on this page is 3 , consider reducing this to one or two. Combine, refactor, and minify to optimize your JavaScript files. Ideally you should have one (or even embed scripts for high-traffic pages) on your pages. Consider suturing JavaScript files together at the server to minimize HTTP requests. Placing external JavaScript files at the bottom of your BODY, and CSS files in the HEAD enables progressive display in XHTML web pages.
  • HTML_SIZE - Congratulations, the total size of this HTML file is 10114 bytes, which less than 50K. Assuming that you specify the HEIGHT and WIDTH of your images, this size allows your HTML to display content in under 10 seconds, the average time users are willing to wait for a page to display without feedback.
  • IMAGES_SIZE - Caution. The total size of all your images is 94110 bytes, which exceeds 50K. Consider optimizing and creatively cropping your images, and combining them where appropriate. Even better, replace graphic text and form controls with styled text to eliminate unnecessary HTTP requests. Ideally each image should be less than 1160 bytes, to easily fit into one TCP-IP packet.
  • SCRIPT_SIZE - Warning! The total size of external your scripts is 133645 bytes, which is over 20K. Consider optimizing your JavaScript for size, combining them, and using HTTP compression where appropriate for any scripts placed in the HEAD of your documents. You can substitute CSS menus for JavaScript-based menus to minimize or even eliminate the use of JavaScript.
  • CSS_SIZE - Congratulations, the total size of your external CSS is 7473 bytes, which is less than 8K.
  • MULTIM_SIZE - Congratulations, the total size of all your external multimedia files is 0 bytes, which is less than 10K.