Benefits of multiple domains pointing to the same site

Multi-domain

1. Static content and dynamic content sub-server storage, using a different server processing requests. Handling dynamic content only handles dynamic content, does nothing else, and improves efficiency, making CDN (content distribution network) caching more convenient

2. Breakthrough Browser concurrency limit (the number of concurrent requests in a browser is limited to the same domain name, and more than a limited number of requests will be blocked) you pick a G-Home url:https://lh4.googleusercontent.com/-si4dh2mypwk/ T81yksi__ai/aaaaaaaaq5o/llwbbrpp58q/w497-h373/img_20120603_163233.jpg, the front of the Lh4 replaced Lh3,lh6 what, all can still access, This is important for sites like maps that require a lot of concurrent downloads of images.

3. Cross-domain does not pass cookies, save bandwidth; For example: Twitter's main station, the user's every visit, will bring their own cookies, quite large. If the image of Twitter is placed under the master domain name, then each time the user accesses the picture, the request header will have its own cookie, the header of the cookie is not compressed, and the picture does not need to know the user's Cookie , So this part of the bandwidth is wasted. When writing the master program, Set-cookie also do not set to the domain name of the picture.

On small-traffic sites, this cookie doesn't actually save much bandwidth, and when it comes to Facebook Twitter, it saves a lot of money.

About multi-domain, is not the more the better, although the server can do a pan-interpretation, the browser to do DNS interpretation is also time-consuming, and too many domain names, if you want to go https, there is more to buy certificates and deployment issues

Benefits of multiple domains pointing to the same site