Stands for "Content Delivery Network." A CDN is a group of servers distributed in different locations. Small CDNs may be located within a single country, while large CDNs are spread across data centers around the world.
CDNs are used to provide content to users in different locations as quickly as possible. For example, a user in San Francisco may receive website content from a server in Los Angeles, while a user in England may receive the same content from a server in London. This is accomplished ...
All of those SEO practices that Google has put out have the ultimate goal to give your customers a better user experience on your website. So you have done your content right, you have chosen the right keywords and you have optimized all of the images on your website. How about the technical aspect. Technical SEO refers to the steps you need to take to optimize your website for the crawling bots that go to your website. If you haven’t done it yet, ...
Stands for "Extensible Markup Language." (Yes, technically it should be EML). XML is used to define documents with a standard format that can be read by any XML-compatible application. The language can be used with HTML pages, but XML itself is not a markup language. Instead, it is a "metalanguage" that can be used to create markup languages for specific applications.
For example, it can describe items that may be accessed when a Web page loads. Basically, XML allows you to ...
Stands for "Document Type Definition." A DTD defines the tags and attributes used in an XML or HTML document. Any elements defined in a DTD can be used in these documents, along with the predefined tags and attributes that are part of each markup language. The following is an example of a DTD used for defining an automobile:
<!DOCTYPE automobile [ <!ENTITY header "Car Details"> <!ELEMENT make (#PCDATA)> <!ELEMENT model (#PCDATA)> <!ATTLIST model doors (two | four) #required> <!ELEMENT year (#PCDATA)> <!ELEMENT engine (#PCDATA)> <!ATTLIST engine transmission (manual | automatic) #required>]>
The above DTD ...
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