How to improve the speed of opening corporate website?

　　Cleanup Site Code
　　site due to irregularities lead to programming errors left a lot of redundant programming code on the website, these codes not only has no effect on the website but will also affect the speed of opening the site, especially some js code and front-end style code, the need for technical staff to streamline or delete, if you are a web application is downloaded from the internet rapid establishment cms system, this kind of problem would be more prominent.
　　IIS7 website monitoring
　　test whether the site was hijacked, if the domain name is the wall, DNS information pollution detection.
　　Website reduce image size
　　website to ensure the clarity of the picture, not excessive pursuit of high-definition picture, a Zhang Gaoqing picture can reach 5-6 trillion, if your site is very much the picture, imagine when reached tens of megabytes Home for the average user, due to the limited bandwidth, will open will be very slow, we generally Home size under 1 MB or less is best.
　　Page preloading
　　preloading is to say before the page fully loaded, some of the major content to load, reduce the waiting time, the entire contents of the site to avoid too large, causing the site to open a slow speed, which requires a technician to the site of the front-end code pre-load optimization.
　　CDN to accelerate
　　cloud computing era's most popular web acceleration technology, CDN mainly to solve the access to the site speed issues in different regions, using the CDN to accelerate web site can be the site content stored away from the user's most recent server, when different parts of the user access to the site directly call from the contents of the user's most recent server implementation acceleration required by enterprises can consider this a technical site visit different parts of the speed, especially doing the auction site to promote clients.