Fast page load
Improving performance improves the visitor's experience. For us, performance is a main optimisation target. A website has negligible time to make good impression on the visitor. Researchers assess it takes 50 to 500 ms to an online visitor to form a first opinion. Here, the performance plays a main role.
To optimise the performance of an existing website, we first conduct a performance audit to be able to recommend solutions, or recommend and monitor their implementation. Sliding from audit to recommendations implies an analysis of the website parameters, ingredients and constraints. This analysis allows us to select the performance triggers to activate. Pricing
Reducing Http calls
Reducing http calls improve performance. Each ingredient called in a web page increases the number of http calls: script, CSS styles, any file, multimedia, or image. For small and medium images, SPRITES permit to reduce the number of calls to one only. As possible, grouping scripts in one file only can help. Putting the scripts inline at the end of the file might remove calls. Sometimes, using a style tag in the head of the HTML page avoids a call. Testing these solutions allows to assess them in given circumstances, considering the benefits and drawbacks.
The simplest and lightest ingredients make a great recipe. The following methods may bring huge improvements. Decreasing the weight of images comes first: removing empty pixels, lessening the size (scale down) and using responsive technics for the display. Coding minimal HTML tags and CSS rules. Simplifying and minifying By minifying we mean to clean the stylesheet by removing unnecessary rules and write more compact, remove unnecessary pixels from stylesheets and scripts, . CSS and scripts are as many ways.
Server-side tune up
Among server-side sources of performance improvement, let's cite: Gzip compression, parallel download, mod_rewrite for URL rewriting.
Client-side Tune up
Managing cache control allows to monitor some of the client-side parameters for a given website. Another source of improvement is to cleverly test the display in as much up-to-date browsers as possible. Correlatively, foreseeing the best possible degradation of style rules for older browsers will help as well in other situations..