Web Page Speed Report
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| URL: | http://www.helsinki.fi/yliopisto/ |
|---|
| Title: | Helsingin yliopisto |
|---|
| Date: | Report run on Fri Apr 11 06:18:31CDT2008
|
|---|
Diagnosis
Global Statistics
| Total HTTP Requests: | 35 |
| Total Size: | 256096 bytes |
Object Size Totals
| Object type | Size (bytes) | Download @ 56K (seconds) | Download @ T1 (seconds) |
|---|
| HTML: | 9405 |
2.07 |
0.25 |
| HTML Images: | 17175 |
4.62 |
1.29 |
| CSS Images: | 220209 | 49.09 |
6.37 |
| Total Images: | 237384 |
53.71 |
7.66 |
| Javascript: | 1365 |
0.47 |
0.21 |
| CSS: | 0 |
0.00 |
0.00 |
| Multimedia: | 7942 |
1.78 |
0.24 |
| Other: | 0 |
0.00 |
0.00 |
External Objects
| External Object | QTY |
|---|
| Total HTML: | 1 |
| Total HTML Images: | 6 |
| Total CSS Images: | 26 |
| Total Images: | 32 |
| Total Scripts: | 1 |
| Total CSS imports: | 0 |
| Total Frames: | 0 |
| Total Iframes: | 0 |
Download Times*
| Connection Rate | Download Time |
|---|
| 14.4K |
205.49 seconds |
| 28.8K |
106.24 seconds |
| 33.6K |
92.07 seconds |
| 56K |
58.04 seconds |
| ISDN 128K |
22.63 seconds |
| T1 1.44Mbps |
8.36 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 35 total objects for this page, that computes to a total lag time due to latency of 7 seconds. Note also that this download time calculation does not take into account delays due to XHTML parsing and rendering.
Page Objects
# This site is not using HTTP compression, otherwise called content encoding using gzip. Consider compressing your textual content (XHTML, JavaScript, etc.) with mod_gzip or similar products.
* 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.
- TOTAL_OBJECTS - Warning! The total number of objects on this
page is 35 - consider reducing this to a more
reasonable number. Combine, refine, and optimize your external
objects. Replace graphic rollovers with CSS rollovers to speed
display and minimize HTTP requests.
- TOTAL_IMAGES - Warning! The total number of images on this page
is 32 , consider reducing this to a more reasonable
number. Combine, refine, and optimize your graphics. Replace graphic
rollovers with CSS rollovers to speed display and minimize HTTP
requests.
- TOTAL_MULTIM - Congratulations, the total number of external multimedia files on this page is 1 .
- TOTAL_SIZE - Warning! The total size of this page is
256096 bytes, which will load in 58.04 seconds
on a 56Kbps modem. Consider reducing total page size to less than
30K to achieve sub eight second response times on 56K connections.
Pages over 100K exceed most attention thresholds at 56Kbps, even with
feedback. Consider contacting us about our optimization services.
- TOTAL_SCRIPT - Congratulations, the total number of external
script files on this page is 1 . External scripts are
less reliably cached than CSS files so consider combining scripts
into one, or even embedding them into high-traffic pages.
- HTML_SIZE - Congratulations, the total size of this HTML file
is 9405 bytes, which less than 20K. Assuming that you specify
the HEIGHT and WIDTH of your images, this size allows your page to
display content in well under 8 seconds, the average time users are
willing to wait for a page to display without feedback.
- IMAGES_SIZE - Warning! The total size of your images is
237384 bytes, which is over 30K. Consider optimizing your
images for size, combining them, and replacing graphic rollovers with
CSS.
- SCRIPT_SIZE - Congratulations, the total size of all your external
scripts is 1365 bytes, which is less than 4080 bytes. This
will fit into three higher-speed TCP-IP packets.
- MULTIM_SIZE - Caution. The total size of your external
multimedia files is 7942 bytes, which is between 4K and
20K. Consider optimizing your multimedia and eliminating features to
reduce this to a more reasonable size. Or, consider a vector-based
format such as Flash or SVG.
