Dans quel but ? augmenter sa vitesse de chargement. Si votre page d'accueil met une heure à apparaître en entier, vous risquez de perdre des visiteurs qui, las, partiront rapidement.
Web Side Optimization va calculer la taille des différents élèments qui composent votre page et vous proposer des conseils pour améliorer le temps de chargement.
Vous saisissez l'URL de la page à étudier, cliquez sur Envoyer.
Vous obtenez le rapport suivant :
Web Page Speed Report
| URL: | http://annak.over-blog.com |
| Title: | Les ficelles d Anna K. |
| Date: | Report run on Wed Jul 2 08:39:51CDT2008 |
Diagnosis
Global Statistics
| Total HTTP Requests: | 37 |
| Total Size: | 250289 bytes |
Object Size Totals
| Object type | Size (bytes) | Download @ 56K (seconds) | Download @ T1 (seconds) |
| HTML: | 7822 | 1.76 | 0.24 |
| HTML Images: | 10336 | 3.46 | 1.45 |
| CSS Images: | 99447 | 23.02 | 3.73 |
| Total Images: | 109783 | 26.48 | 5.18 |
| Javascript: | 92982 | 20.13 | 2.09 |
| CSS: | 39702 | 8.91 | 1.21 |
| Multimedia: | 0 | 0.00 | 0.00 |
| Other: | 0 | 0.00 | 0.00 |
External Objects
| External Object | QTY |
| Total HTML: | 1 |
| Total HTML Images: | 7 |
| Total CSS Images: | 16 |
| Total Images: | 23 |
| Total Scripts: | 8 |
| Total CSS imports: | 5 |
| Total Frames: | 0 |
| Total Iframes: | 0 |
Download Times*
| Connection Rate | Download Time |
| 14.4K | 201.39 seconds |
| 28.8K | 104.39 seconds |
| 33.6K | 90.54 seconds |
| 56K | 57.28 seconds |
| ISDN 128K | 22.68 seconds |
| T1 1.44Mbps | 8.73 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 37 total objects for this page, that computes to a total lag time due to latency of 7.4 seconds. Note also that this download time calculation does not take into account delays due to XHTML parsing and rendering.
Page Objects
et surtout l'analyse et les recommandations pour améliorer l'optimisation
En vert : ce qui est parfait
En jaune : ce qui est limite
En rouge : ce qu'il faut corriger

A voir : Optimiser vos images