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4 juin 2015
NewQuestNewQuest Damien Jubeau
CEO
Introduction à la performance web
4 juin 2015
NewQuestNewQuest
4 juin 2015
NewQuestNewQuest
Attente = Frustration
4 juin 2015
NewQuestNewQuest
4 juin 2015
NewQuest
5
- 16%
satisfaction utilisateurs
1 seconde supplémentaire c'est...
Source : Aberdeen Group 2008
4 juin 2015
NewQuest
6
- 7%
taux de conversion
1 seconde supplémentaire c'est...
Source : Aberdeen Group 2008
4 juin 2015
NewQuest
7
- 4,3%
sur les revenus publicitaires
Tous les modèles de revenus
Source : Bing
4 juin 2015
NewQuest
8
1% des sites pénalisés
Et mon référencement ?
Source : Google
4 juin 2015
NewQuest
9
85%
des mobinautes s'attendent à
un chargement au moins aussi
rapide que sur desktop
Le challenge du mobile
Source : igvita.com & webperformancetoday.com 2011
Comment accélérer ?
« 80-90% of the end-user response time
is spent on the frontend. Start there. »
Steve Souders
http://www.stevesouders.com/blog/2012/02/10/the-performance-golden-rule/
Performance Golden Rule
et pourtant...
chargement : 7 sec 2 sec
Infrastructure nécessaire : -50 %
Conception et Bonnes Pratiques
+ 10%
sur le taux
de conversion
En savoir plus :
fr.slideshare.net/timmorrow/shopzilla-performance-by-design-2433735
Conception et Bonnes Pratiques
Mesurer pour s'améliorer
RUM vs Monitoring actif
Trafic réel
vs
Trafic simulé
4 juin 2015
NewQuest
16
Quelques mesures...
Time To First Byte
Quelques mesures...
Start Render Time
Quelques mesures...
Time To Interact
Quelques mesures...
Fin de chargement
« As a product manager you should know
that speed is
product feature number one. »
Larry Page (Google)
Budget de Performance
Budget de Performance
Se fixer des objectifs
« La page doit faire moins de 1Mo »
« Le serveur doit répondre en 200ms »
Budget de Performance
Nouvelle fonctionnalité ?
Budget de Performance
Respect du budget
Budget de Performance
Budget KO ???
4 juin 2015
NewQuest
26
Votre budget, par Google
200 ms
1 sec
TTFB
above the fold
27
NewQuest
4 juin 2015
Des questions ?
28
NewQuest
4 juin 2015
www.dareboost.com
4 juin 2015
NewQuest
29
Démocratiser
le pilotage et
l'optimisation de la
performance web
30
NewQuest
4 juin 2015
Mesurer et collecter
31
NewQuest
4 juin 2015
Détecter les problèmes
32
NewQuest
4 juin 2015
Apporter les solutions
33
NewQuest
4 juin 2015
Automatique / sur-mesure
34
NewQuest
4 juin 2015
http://fo.demo.prestashop.com
35
NewQuest
4 juin 2015
36
NewQuest
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37
NewQuest
4 juin 2015
Monitoring & alertes
38
NewQuest
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39
NewQuest
4 juin 2015
4 juin 2015
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40
Version gratuite !
www.dareboost.com
41
NewQuest
4 juin 2015
Des questions ?
4 juin 2015
NewQuestNewQuest Damien Jubeau
CEO
damien.jubeau@dareboost .com
06 28 37 69 26

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Introduction à la Performance Web