modernizr cdn

About CDNcontent distribution Network (contents delivery network or distribution network, abbreviated: CDN) refers to a computer network connected to each other via the Internet, using servers closest to each user, faster, More reliably send music, pictures, videos, applications, and other files to users to deliver high-performance, scalable, and low-cost network content to users. The total load capacity of the content distribution network can be lar

The past revisited A year ago for a well-known novel site to do SEO optimization, the project's biggest difficulty is not in the keyword optimization and processing, but in order to explain a variety of SEO phenomenon. The problem that comes out of one question bothers me so far. At that time found that there are many Web sites in Baidu included in the description, title is not the title of the Web page, in many times Baidu update is always a page this situation. When I shared this with several

jquery CDN LibraryOfficial website: http://jquery.com/? Microsoft CDN ?Supported version: 1.7.2 Baidu CDNSupported 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, 1.7. 0, 1.6.4, 1.6.3, 1.6.2, 1.6.1, 1.6.0, 1.5.2, 1.5.1, 1.5.0, 1.4.4, 1.4.3, 1.4.2, 1.4.1, 1.4.0, 1.3.2, 1.3.1, 1.3.0, 1.2.6, 1.2.3 Sina

1. What is a cache?Caching is an example of a space-time change that exists everywhere. By using extra space, we are able to get faster speeds.First, look at how the user's browser interacts with the server when no Web site is connected to the CDN:When users browse the website, the browser can save a copy of the pictures or other files in the site locally, so that when the user visits the site again, the browser will not have to download all the files, reducing the amount of download means that

With the rapid rise of nginx, more and more companies to replace Apache into Nginx. At the same time, more and more people use Nginx as load balancer, and the agent may also add CDN acceleration, but also encountered a problem: how to get the user's real IP address, if the backend is Apache, please jump to Instance environment:User IP 120.22.11.11CDN Front End 61.22.22.22CDN Transit 121.207.33.33Company Nginx front-end agent 192.168.50.121 (External n

ObjectivePlease refer to an online article:Http://c7sky.com/javascript-libraries-cdn.htmlThis article joins the various CDN to some library update situation. and response times.UpdateWhen the article was published, Bootstrap was updated to 3.2.0,But most of the CDN still offers the previous version number 3.0.3,In fact the difference between the two is still relatively large, here is the bootstrap version o

CDN is the abbreviation of Content Delivery Network, that is the meaning of "contents distribution network". Generally speaking of the Cdn acceleration, generally refers to the Web site acceleration or user download resources accelerated. The basic idea of CDN is to avoid the bottleneck and link that may affect data transmission speed and stability as far as pos

Read some of the introduction of CDN articles, I feel this is the most clear to speak.The use of CDN will greatly simplify the maintenance of the site system, site maintenance personnel only need to inject the site content into the CDN system, through the CDN deployed in each physical location of the server for the ful

Before introducing the website architecture, we will first introduce some of the most basic and common concepts in the website architecture, so that we can better understand the following technologies related to Server Load balancer and distributed storage. First, let's talk about CDN. 1. What is CDN?Content Delivery Network (CDN) is the Content Delivery Network

a critical value. If your website is opened for more than 8 seconds, most visitors will eventually leave you. According to some sample surveys, visitors tend to think that websites with faster access speed are of higher quality, more credible, and more interesting. Correspondingly, the slower the webpage is to open, the stronger the psychological frustration of visitors, and the doubt on the credibility and quality of the website. (Refer to the psychology of webpage opening speed) If such a poo

Requirements Description Website www.xxx.com, Environment WIN64 WAMP, distribution 3 Too server, main 1 units, 3 units. The images used in the/css/js are placed in the www.xxx.com/Public/directory. Requirements are introduced in the site/public directory js/css will automatically compress, facilitate the opening speed. Original plan Through Jsminify + htaccess, the request address of the JS/CSS in the Access/public directory is directed to PHP in Jsminify and then automatically compressed via th

has been using grunt, the total sense of Grunt parameter configuration method is very cumbersome, not a clearer flow, coupled with their own gulp flow operations more interested in the decision to go to gulp. Believe that the front-end ER in the release of their own code, if not using some of the front-end building tools, for frequent online projects, their own manual compression and packaging to replace the CDN prefix that is a terrible thing. So u

10 domestic and foreign jQuery CDN performance competitions, jquerycdn JQuery is the most common and popular javascript library in front-end development. How can we load it to improve the performance of our projects and ask what to use CDN? When users access their websites, they load files from the server. Each server can only download 2-4 files at the same time, which will reduce the file execution efficie

CDN Basic concepts and background For CDN, you can refer to the following terms: Content distribute network, which can be directly translated into a content delivery network or written into contentDelivery Network: Content Delivery network. Obviously, CDN completes the task of transferring content from the source station to the user end. Of course, we do not need

The CDN cache cannot be used for images generated by php files. The solution to the inability to use CDN cache for images generated by php files this article mainly introduces the solution to the inability to use CDN cache for images generated by php files, the PHP image generated here refers to the solution that the image generated by the s PHP file cannot be ca

请求状态 $bytes_sent 发送给客户端的总字节数。 $http_referer 记录从哪个页面链接访问过来的 $http_user_agent 记录客户端浏览器相关信息 $upstream_addr 后台upstream的地址，即真正提供服务的主机地址 $request_time 整个请求的总时间Below we are looking at the specific log: 115.45.71.215--[21/dec/2015:00:01:34 +0800] "get/bbs/sidebar/sidebar.php?t=1450627317853callback=cal48995 http/1.1 "313" http://www.xxxx.com.cn/bbs/viewthread.php?tid=25687628page=2 "" mozilla/5.0 (Windows NT 5.1) applewebkit/537.36 (khtml, like Gecko) chrome/31.0.1650.63 safari/537.3

example, our scientific Internet access is to use the forward proxy, in order to achieve the purpose of indirect access to the site, and reverse proxy on the server side, no active link , when we visit a Web site that has a reverse proxy, we actually access its reverse proxy server, not the actual server, and the reverse proxy server forwards the request to the server when the request arrives at the reverse proxy server. Reverse proxy is one of the mainstream means to achieve load balancing, us

How do I obtain all (cdn server) addresses of a website? I used several websites to resolve the dns and found that the IP addresses were not comprehensive. I didn't cover all cdn addresses. How can I find all cdn addresses? How do I obtain all (cdn server) addresses of a website? I used several website IP addresses af

Many sites are separated by static files. I recommend a way to handle static file separation.BundleExtensions.cspublic static class Bundleextensions {public static string Version = "1.0.0"; public static string Scriptspath = "Cdn"; public static bundle Production (the This bundle bundle, String CDN, String root, String minified, string full = "") { C6/>var transform

jquery is the most common and popular JavaScript library in front-end development, how to load it to make our projects more performance and ask what to use CDN? When users visit their own site loading files from the server, each server can only download 2-4 files, which will reduce the efficiency of the file execution, if more than a few servers, so that the number of simultaneous loading of files is (2-4) * The number of servers, So we put jquery on