Lou: 9 factors that affect the speed of Web site opening

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Again good website, if open slow, 10 people will have 9 people choose to leave, I summed up about 9 major factors affecting the opening speed of the site, but the speed of the page display depends on a number of factors, including server performance, network transmission quality, Web site bandwidth, DNS resolution, Web content including the JS code involved, Picture and video size and so on various factors, such as incomplete, welcome to add and correct.

(Again good website, if open slow, 10 people will have 9 people choose to leave)

1: Network Minimum bandwidth

This is the main factor, in slow web sites with good bandwidth access speed as fast (that is, more money), the bandwidth of the network includes two locations on the server bandwidth and the user end, the point of contact is the outlet and the entrance (for example, the connection between Telecom and Netcom), and the other is the minimum bandwidth of the user. If the user is running 512K broadband, I can't help.

2:dns parsing time

DNS resolution includes the number of round-trip resolution and the time spent on each resolution, both of which are the amount of time that DNS resolution consumes, so many people ignore the DNS problem, in fact, DNS on the Web site resolution speed is also very important, such as Google recently launched page Speed Service and domestic dnspod such as free domain name to do DNS acceleration, we can try.

3: Configuration of the machine

Includes the level of hardware configuration on the server and client side, the same network environment, dual-core server computing power must be stronger, no doubt, the same network environment, you use a Celeron machine and Ben four duo processor computer, open the same Web page, speed, also certainly different.

4: Server Software

The amount of software, stability, and proper configuration of the software affect the server environment, which can affect the speed of the network. The server installs the software firewall, will sacrifice some network speed, therefore the VPS, or the independent server user installs a firewall to be sufficient.

5: Size of Web page content (important)

The size of the Web page file is whether the site can quickly open the most important factor, if the server and other hardware, we can not decide, I strongly recommend from here, whether the table or Div, the appropriate optimization code, can reduce the size of the page.

Try to optimize the code, with minimal code, such as Lou the blog template a few days ago, so that each page is reduced by more than 100 k, improve the speed of the site open, do not include the entire content in a box, in the "to the site to lose weight, let the site speed up" the article, I introduced in detail, Web code optimization methods. At the same time, a large number of errors, redundant code is slowed down one of the Web site.

6: A large number of database operations

Small web site in the execution of a large number of database operations, will also affect the speed of the site opened, where the asp+access structure of the site is particularly obvious, especially at the same time a large number of users submit comments, the operation of the database lock, resulting in the site can not open. For example, my blog in the release of the article will have a few minutes to the site speed greatly reduced.

7: With a lot of javascript

The use of a large number of JS Web site is taboo, not only the search engine can not be included, and will continue to submit requests to increase the server burden, such as mouse effects, column effects, status bar effects and so on. The principle of these effects is to download the server to your local machine, then run it on your local machine and then you can see it. Special effects do more, on your local machine will run for a long time to complete, and if your host configuration in general, it is more slow. Therefore, it is recommended to use less javascript effects.

8: On the page with large pictures and flash

We know that the picture is the most important factor in slowing down the speed, picture after processing, you can make the picture space smaller, Lou blog each of the pictures are processed, but led to a part of the picture clarity is not enough, otherwise a lot of pictures at the beginning will occupy a lot of space and make the site open speed becomes very slow, Also, Flash is a truth.

9: Too much reference to the content of other websites

Including your reference to other sites of pictures, video files, etc., if directly on the page to refer to other sites, and the speed of the site is slow, or the site of the page no longer exist, then you open the speed will be very slow.

Author: Lou This article address: http://lusongsong.com/reed/350.html