Today, no matter whether our webmaster users use domestic or foreign host products, they may consider using CDN acceleration to solve these problems because of the speed and stability of Internet access on various lines. Users with the ability and capital may choose paid products or build their own CDN acceleration services. However, for individual users, we must choose free
CDN stands for content delivery network (CDN. By adding a new network architecture to the existing Internet, the website content is published to the "edge" closest to the user's network, so that users can obtain the desired content nearby, solves Internet network congestion and increases the response speed for users to access websites. It comprehensively solves the problem of slow response speed caused by l
CDN Accelerator makes network operation accelerate Internet access experience will become perfect
June 29, the Ministry of Information, Li Yizhong, said the three networks (telecommunications network, Internet and television network) integration of the overall programme of the State Council has approved the announcement, the pilot program has been reported to the State Council, the pilot city work has started. According to experts, the realization of
If you don't want to download and store JQuery, you can also reference it through a CDN (content distribution network).The servers of Baidu, Google and Microsoft all have jQuery.JQuery Baidu CDN (domestic certainly choose Baidu or Sina)Load Address:
Not compressed:
Compression:Supported versions: 2.0.3, 2.0.2, 2.0.1, 2.0.0, 1.10.2, 1.10.1, 1.10.0, 1.9.1, 1.9.0, 1.8.3, 1.8.2, 1.8.1, 1.8.0, 1.7.2, 1.7.1, 1.
We can say that the development of the Internet is explosive, technology is always the innovation. With the development of Web applications, many international sites began to use Content distribution network technology in the site (hereinafter referred to as CDN Technology), the biggest feature of this technology is that the site is no longer the same as in the past just placed on a fixed server. Instead, the site content is distributed
, it is best to debug one after another, for example, you find 1.7.2 compatibility is good. This time you can discard the 1.6.2, you can use the 1.7.2 version of jquery to replace the 2.X new version.
Which jquery CDN library do you use?
jquery is too big! If your site is not fast, jquery will definitely affect your page loading speed. Fortunately, Baidu, Sina, Microsoft, Google and other companies have launched a public JS library, convenient websi
Brief introductionIf your host is abroad, or at home but because the north-South interoperability problem open speed is not ideal, or the bandwidth itself is very small open speed is not fast, we need to do some other aspects of optimization to improve the speed of website access.What is a CDN public library?CDN Public Library refers to the common JS inventory placed in the
. and the existing HTTP protocol also has a delay factor, according to the survey, the full download of a Web page, the user and the server need to round-trip 20~100 times.Finally, the existing routing technology is based on the historical data of the router's working state to determine the transmission path of the current packet, and cannot reflect the current routing and Network connection status. This often results in a path that passes through the data transfer and is not the best path curre
ideas
Defense methods against such traffic attacks include:
Set up a hard Firewall
Rent anti-DDoS nodes
Rent CDN to distribute target traffic
Disadvantages
Set up a hard firewall: the price of 2G hard defense on the market is about 10 W, and the cluster defense cost is even higher. Although the hardware-level defense performance is high, the traffic flood is also a hit, and the side effects cannot be underestimated.
Rent anti-DDoS nodes: Anti-
; proxy_set_header X-real-IP $ remote_addr; proxy_set_header X-forwarded-for $ proxy_add_x_forwarded_for; }
Pay attention to the red font. These configurations are related to the IP address in the following section.
-------------------------------
-- Level 1 | X-forwarded-for: background -- This is a field developed by squid, not the RFC standard. Abbreviation
XFF Header This option is added only when the HTTP proxy or Server Load balancer is passed. You can find the detailed des
Recently want to understand the next CDN, from the Internet to find some documents looked under, and some with dig command interpretation is quite complicated, but the total feeling lacks some image examples for beginners to master. First, there are several concepts to be clear:
1, GSLB Global load balancing and IDNs intelligent DNS is a meaning, not two things. In the implementation of the way, there are F5 GTM and other mature manufacturers of produ
Solution: PHP backend images cannot be cached by CDN. Solution: PHP backend images cannot be cached by CDN.
Today, I found that there is a problem online. an online image domain name has been added to the CDN cache on the front end. if it is not cached, I will use PHP to dynamically scale the image, however, after PHP processes the image output, it will be r
The CDN listed here (Content Delivery Network) is a free-to-use experience version, for more professional features and services please upgrade the paid version, each of the CDN price is different, not listed. Now let's look at a simple comparison of the various CDN that can be used for free:Discover that Freecdn (su.zhiduopc.com) is able to provide both DDoS defe
Recently started on the Ucloud cloud host site to see the function of Ucloud CDN, want to ask similar to PHP Dynamic Web site can be cached? Are there any heroes who have been useful on the Ucloud cloud host to answer this question?
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Recently started on the Ucloud cloud host site to see the function of Ucloud CDN, want to ask similar to PHP Dynamic Web site can be cached? Are there any he
Case:Web server: domain name www.abc.com IP: 192.168.21.129 China Telecom single line accessUsers: Telecom broadband users and mobile broadband usersProblem: telecom users can access www.abc.com normally. Mobile users can access www.abc.com very slowly or even not.Solution: place a CDN proxy server in the mobile data center. through intelligent DNS resolution, telecom users can directly access the Web server and mobile users can access the
How to Use DNS + geoip + nginx + varnish as a world-class CDN
How to use bind, geoip, nginx, and varnish to create your own efficient CDN network?CDN stands for content distrubtion Network, which is a content delivery network. In short, it refers to Server Load balancer in all regions. The concept of a whole region can be national or global. The unified DNS serve
CDN stands for Content Delivery Network (CDN. The purpose is to add a new network architecture to the existing Internet to publish website content to the "edge" closest to the user's network ", this allows users to obtain the desired content from the nearest node to solve the problem of Internet congestion and improve the response speed of users accessing the website. Technically, it solves the slow respons
The common double-line room can only solve the problem that Netcom and telecom have slow access to each other, but the problem of cross-region is still not solved. CDN is a visitor to the nearest data, and the CDN node spread across the ISP, so as to ensure that the site to any ISP access speed.Spend a lot of money to do Baidu promotion, advertising, Web page open slow, instant communication tools Total dro
Now the internet giants have provided some static resources public library for the vast number of developers to provide convenience;Because they have CDN nodes all over the place, using these repositories can speed up loading resources and save traffic.However, because there is a sacred wall of reason, I wait for the people living in the Celestial kingdom is not able to enjoy Google's resource pool;But Baidu's resource pool is also very good; recommen
Now the internet giants have provided some static resources public library for the vast number of developers to provide convenience;Because they have CDN nodes all over the place, using these repositories can speed up loading resources and save traffic.However, because there is a sacred wall of reason, I wait for the people living in the Celestial kingdom is not able to enjoy Google's resource pool;But Baidu's resource pool is also very good; recommen
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