Saturday, July 28, 2018

Search Engine Optimization

SEO - What is SEO?

SEO stands for Search Engine Optimization. SEO is all about optimizing a website for search engines. SEO is a technique for:
  • designing and developing a website to rank well in search engine results.
  • improving the volume and quality of traffic to a website from search engines.
  • marketing by understanding how search algorithms work, and what human visitors might search.
SEO is a subset of search engine marketing. SEO is also referred as SEO copyrighting, because most of the techniques that are used to promote sites in search engines, deal with text.
If you plan to do some basic SEO, it is essential that you understand how search engines work.

How Search Engine Works?

Search engines perform several activities in order to deliver search results.
  • Crawling - Process of fetching all the web pages linked to a website. This task is performed by a software, called a crawler or a spider (or Googlebot, in case of Google).
  • Indexing - Process of creating index for all the fetched web pages and keeping them into a giant database from where it can later be retrieved. Essentially, the process of indexing is identifying the words and expressions that best describe the page and assigning the page to particular keywords.
  • Processing - When a search request comes, the search engine processes it, i.e. it compares the search string in the search request with the indexed pages in the database.
  • Calculating Relevancy - It is likely that more than one page contains the search string, so the search engine starts calculating the relevancy of each of the pages in its index to the search string.
  • Retrieving Results - The last step in search engine activities is retrieving the best matched results. Basically, it is nothing more than simply displaying them in the browser.
Search engines such as Google and Yahoo! often update their relevancy algorithm dozens of times per month. When you see changes in your rankings it is due to an algorithmic shift or something else outside of your control.
Although the basic principle of operation of all search engines is the same, the minor differences between their relevancy algorithms lead to major changes in results relevancy.

What is SEO Copywriting?

SEO Copywriting is the technique of writing viewable text on a web page in such a way that it reads well for the surfer, and also targets specific search terms. Its purpose is to rank highly in the search engines for the targeted search terms.
Along with viewable text, SEO copywriting usually optimizes other on-page elements for the targeted search terms. These include the Title, Description, Keywords tags, headings, and alternative text.
The idea behind SEO copywriting is that search engines want genuine content pages and not additional pages often called "doorway pages" that are created for the sole purpose of achieving high rankings.

What is Search Engine Rank?

When you search any keyword using a search engine, it displays thousands of results found in its database. A page ranking is measured by the position of web pages displayed in the search engine results. If a search engine is putting your web page on the first position, then your web page rank will be number 1 and it will be assumed as the page with the highest rank.
SEO is the process of designing and developing a website to attain a high rank in search engine results.

What is On-Page and Off-page SEO?

Conceptually, there are two ways of optimization:
  • On-Page SEO - It includes providing good content, good keywords selection, putting keywords on correct places, giving appropriate title to every page, etc.
  • Off-Page SEO - It includes link building, increasing link popularity by submitting open directories, search engines, link exchange, etc.

SEO - Tactics & Methods

SEO techniques are classified into two broad categories:
  • White Hat SEO - Techniques that search engines recommend as part of a good design.
  • Black Hat SEO - Techniques that search engines do not approve and attempt to minimize the effect of. These techniques are also known as spamdexing.

White Hat SEO

An SEO tactic is considered as White Hat if it has the following features:
  • It conforms to the search engine's guidelines.
  • It does not involve in any deception.
  • It ensures that the content a search engine indexes, and subsequently ranks, is the same content a user will see.
  • It ensures that a web page content should have been created for the users and not just for the search engines.
  • It ensures good quality of the web pages.
  • It ensures availability of useful content on the web pages.
Always follow a White Hat SEO tactic and do not try to fool your site visitors. Be honest and you will definitely get something more.

Black Hat or Spamdexing

An SEO tactic, is considered as Black Hat or Spamdexing if it has the following features:
  • Attempting ranking improvements that are disapproved by the search engines and/or involve deception.
  • Redirecting users from a page that is built for search engines to one that is more human friendly.
  • Redirecting users to a page that was different from the page the search engine ranked.
  • Serving one version of a page to search engine spiders/bots and another version to human visitors. This is called Cloaking SEO tactic.
  • Using hidden or invisible text or with the page background color, using a tiny font size or hiding them within the HTML code such as "no frame" sections.
  • Repeating keywords in the metatags, and using keywords that are unrelated to the website content. This is called metatag stuffing.
  • Calculated placement of keywords within a page to raise the keyword count, variety, and density of the page. This is called keyword stuffing.
  • Creating low-quality web pages that contain very little content but are instead stuffed with very similar keywords and phrases. These pages are called Doorway or Gateway Pages.
  • Mirror websites by hosting multiple websites - all with conceptually similar content but using different URLs.
  • Creating a rogue copy of a popular website which shows contents similar to the original to a web crawler, but redirects web surfers to unrelated or malicious websites. This is called page hijacking.
Always stay away from any of the above Black Hat tactics to improve the rank of your site. Search engines are smart enough to identify all the above properties of your site and ultimately you are not going to get anything.

SEO - Web Site Domain

When you start thinking of doing a business through internet, the first thing that you think about is your website domain name. Before you choose a domain name, you should consider the following:
  • Who would be your target audience?
  • What you intend to sell to them. Is it a tangible item or just text content?
  • What will make your business idea unique or different from everything else that is already avilable in the market?
Many people think it is important to have keywords in a domain. Keywords in the domain name are usually important, but it usually can be done while keeping the domain name short, memorable, and free of hyphens.
Using keywords in your domain name gives you a strong competitive advantage over your competitors. Having your keywords in your domain name can increase click-through-rates on search engine listings and paid ads as well as make it easier to use your keywords in get keyword rich descriptive inbound links.
Avoid buying long and confusing domain names. Many people separate the words in their domain names using either dashes or hyphens. In the past, the domain name itself was a significant ranking factor but now search engines have advanced features and it is not a very significant factor anymore.
Keep two to three words in your domain name that will be easy to memorize. Some of the most notable websites do a great job of branding by creating their own word. Few examples are eBay, Yahoo!, Expedia, Slashdot, Fark, Wikipedia, Google, etc.
You should be able to say it over the telephone once, and the other person should know how to spell it, and they should be able to guess what you sell.

Guru Mantra

Finally, you should be able to answer the following questions:
  • Why do you want to build your website?
  • Why should people buy off your site and not from other site?
  • What makes you different from others?
  • Who are your target audience and what do you intend to sell?
  • List 5 to 10 websites that you think are amazing. Now think why they are amazing.
  • Create 5 different domain names. Make at least 1 of them funny. Tell them to half a dozen people and see which ones are the most memorable. You will get more honest feedback if the people do not know you well.
  • Buy your domain name that is catchy, memorable, and relevant to your business.

SEO - Relevant Filenames

One of the simplest methods to improve your search engine optimization is to look at the way you name your files. Before writing this tutorial, we did a lot of research on file-names and found that search engines like Google give too much importance to file names. You should think what you want put in your web page and then give a relevant file name to this page.
Just try giving any keyword in Google search engine and you will find file names highlighted with the keyword you have given. It proves that your file name should have appropriate keywords.

File Naming Style

  • The filename should preferably be short and descriptive.
  • It is always good to use same keywords in a filename as well as in page title.
  • Do not use filenames such as service.htm or job.htm as they are generic. Use actual service name in your file name such as computer-repairing.htm.
  • Do not use more than 3-4 words in file names.
  • Separate the keywords with hyphens rather than underscores.
  • Try to use 2 keywords if possible.

File Name Example

Listed below are some filenames which would be ideal from the users' point of view as well as SEO.
slazenger-brand-balls.html
wimbledon-brand-balls.html
wilson-brand-balls.html
Notice that the keywords are separated by hyphens rather than underscores. Google sees good filenames as follows:
seo-relevant-filename as seo relevant filename(good)
Filenames with underscores are not a good option.
seo_relevant_filename as seorelevantfilename (not good)

File Extension

You should notice that .html, .htm, .php and any other extension do NOTHING for your visitors, and they are simply a means of offloading some of the work of configuring your webserver properly onto your visitor's. In effect, you are asking your site visitors to tell your webserver HOW to produce the page, not which one?
Many Web masters think that it is a good idea to use filename without using extension. It may help you, but not a whole lot.

URL Sub-Directory Name

From Search Engine Optimization point of view, URL sub-directory name hardly matters. You can try giving any keyword in any search, and you will not find any sub-directory name matching with your keywords. But from the user's point of view, you should keep an abbreviated sub-directory name.

Guru Mantra

Keep the following points in mind before naming your files:
  • Keep the web page filename short, simple, descriptive, and relevant to the page content.
  • Try to use a maximum of 3-4 keywords in your filename, and these keywords should appear on your web page title as well.
  • Separate all keywords with hyphen rather than with underscore.
  • Keep your sub-directories name as short as possible.
  • Restrict the file size to less than 101K because Google chops almost everything above that.

SEO - Design & Layout

The website design and layout gives the first impression about your site. There are sites which are too fancy and regular net surfers just reach those sites and come out even without creating a single click.
Search engines are very smart but after all, they are software and not human being, who can read the content of their interest. If you make your site too complicated, then the search engine would not be able to parse the content of your site properly, and finally indexing would not be efficient, which results in a low rank.
The actual page content should have a keyword density of about 10% and should weigh in at about 200 words - but there are as many opinions about this as there are SEO experts. Some say, keyword density should be 5% and some say it should be 20%. You can go with 10% which is good enough.
Here are a few guidelines that you should keep in mind while designing a web page.
  • You should have more text content than HTML elements.
  • No frames. They are the enemies of search engines, and search engines are enemies of frames.
  • No ads if possible. Because most of the ads use Java-Script which is not advised to be used.
  • No JavaScript. If you need JavaScript, call it from an external file rather than dumping the code in the HTML file. JavaScript drop-down menus prevent spiders from crawling beyond your homepage. If you use them, be sure to include text links at the bottom of the page.
  • Do not put anything in the page topic that does not fit perfectly.
  • No unnecessary directories. Keep your files as close to the root as possible.
  • No fancy stuff (Flash, Splash, Animated Gifs, Rollovers, etc.) unless absolutely necessary.

SEO - Optimized Keywords

A keyword is a term that is used to match with the query a person enters into a search engine to find specific information. Most people enter search phrases that consist of two to five words. Such phrases may be called search phrases, keyword phrases, query phrases, or just keywords. Good keyword phrases are specific and descriptive.
The following concepts related to keywords, help in optimizing the keywords on a web page.

Keyword Frequency

This is calculated as how often does a keyword appear in a website title or description. You do not want to go overboard with frequency, however, since on some engines if you repeat a word too many times, you are be penalized for "spamming" or keyword stuffing.
In general though, repeat your keyword in the document as many times as you can get away with, and up to 3-7 times in your list of metatags.

Keyword Weight

It refers to the number of keywords appearing on your web page compared to the total number of words appearing on that same page. Some search engines consider this while determining the rank of your website for a particular keyword search.
One technique that often works well is to create some smaller pages, generally just a paragraph long that emphasizes a particular keyword. By keeping the overall number of words to a minimum, you can increase the "weight" of the keyword you are emphasizing.

Keyword Proximity

It refers to the placement of keywords on a web page in relation to each other or, in some cases, in relation to other words with a similar meaning as the queried keyword.
For search engines, that grade a keyword match by keyword proximity, the connected phrase home loans will outrank a citation that mentions home mortgage loans assuming that you are searching only for the phrase "home loans".

Keyword Prominence

It is a measure of how early or high up on a page, the keywords are found. Having keywords in the first heading and in the first paragraph (first 20 words or so) on a page are best.

Keyword Placement

Where your keywords are placed on a page is very important. For example, in most engines, placing the keywords in the Title of the page, or in the Heading tags will give it more relevancy. On some engines, placing keywords in the link text, the part that is underlined on the screen in a browser, can add more relevancy to those words.

Best Places to Put Keywords

Here is a list of places where you should try to use your main keywords.
  • Keywords in the <title> tag(s).
  • Keywords in the <meta name="description">.
  • Keywords in the <meta name="keyword">.
  • Keywords in <h1> or other headline tags.
  • Keywords in the <a href=&quo
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Friday, July 27, 2018

Computer Glossary

Applet

A small Java application that is downloaded by an ActiveX or Java-enabled web browser. Once it has been downloaded, the applet will run on the user's computer. Common applets include financial calculators and web drawing programs.

Application

Computer software that performs a task or set of tasks, such as word processing or drawing. Applications are also referred to as programs.

ASCII

American Standard Code for Information Interchange, an encoding system for converting keyboard characters and instructions into the binary number code that the computer understands.

Bandwidth

The capacity of a networked connection. Bandwidth determines how much data can be sent along the networked wires. Bandwidth is particularly important for Internet connections, since greater bandwidth also means faster downloads.

Binary code

The most basic language a computer understands, it is composed of a series of 0s and 1s. The computer interprets the code to form numbers, letters, punctuation marks, and symbols.

Bit

The smallest piece of computer information, either the number 0 or 1. In short they are called binary digits.

Boot

To start up a computer. Cold boot means restarting computer after the power is turned off. Warm boot means restarting computer without turning off the power.

Browser

Software used to navigate the Internet. Google Chrome, Firefox, Netscape Navigator and Microsoft Internet Explorer are today's most popular browsers for accessing the World Wide Web.

Bug

A malfunction due to an error in the program or a defect in the equipment.

Byte

Most computers use combinations of eight bits, called bytes, to represent one character of data or instructions. For example, the word cat has three characters, and it would be represented by three bytes.

Cache

A small data-memory storage area that a computer can use to instantly re-access data instead of re-reading the data from the original source, such as a hard drive. Browsers use a cache to store web pages so that the user may view them again without reconnecting to the Web.

CAD-CAM

Computer Aided Drawing - Computer Aided Manufacturing. The instructions stored in a computer that will be translated to very precise operating instructions to a robot, such as for assembling cars or laser-cutting signage.

CD-ROM

Compact Disc Read-Only Memory, an optically read disc designed to hold information such as music, reference materials, or computer software. A single CD-ROM can hold around 640 megabytes of data, enough for several encyclopaedias. Most software programs are now delivered on CD-ROMs.

CGI

Common Gateway Interface, a programming standard that allows visitors to fill out form fields on a Web page and have that information interact with a database, possibly coming back to the user as another Web page. CGI may also refer to Computer-Generated Imaging, the process in which sophisticated computer programs create still and animated graphics, such as special effects for movies.

Chat

Typing text into a message box on a screen to engage in dialogue with one or more people via the Internet or other network.

Chip

A tiny wafer of silicon containing miniature electric circuits that can store millions of bits of information.

Client

A single user of a network application that is operated from a server. A client/server architecture allows many people to use the same data simultaneously. The program's main component (the data) resides on a centralized server, with smaller components (user interface) on each client.

Cookie

A text file sent by a Web server that is stored on the hard drive of a computer and relays back to the Web server things about the user, his or her computer, and/or his or her computer activities.

CPU

Central Processing Unit. The brain of the computer.

Cracker

A person who breaks in to a computer through a network, without authorization and with mischievous or destructive intent.

Crash

A hardware or software problem that causes information to be lost or the computer to malfunction. Sometimes a crash can cause permanent damage to a computer.

Cursor

A moving position-indicator displayed on a computer monitor that shows a computer operator where the next action or operation will take place.

Cyberspace

Slang for internet ie. An international conglomeration of interconnected computer networks. Begun in the late 1960s, it was developed in the 1970s to allow government and university researchers to share information. The Internet is not controlled by any single group or organization. Its original focus was research and communications, but it continues to expand, offering a wide array of resources for business and home users.

Database

A collection of similar information stored in a file, such as a database of addresses. This information may be created and stored in a database management system (DBMS).

Debug

Slang. To find and correct equipment defects or program malfunctions.

Default

The pre-defined configuration of a system or an application. In most programs, the defaults can be changed to reflect personal preferences.

Desktop

The main directory of the user interface. Desktops usually contain icons that represent links to the hard drive, a network (if there is one), and a trash or recycling can for files to be deleted. It can also display icons of frequently used applications, as requested by the user.

Desktop publishing

The production of publication-quality documents using a personal computer in combination with text, graphics, and page layout programs.

Directory

A repository where all files are kept on computer.

Disk

Two distinct types. The names refer to the media inside the container:
A hard disc stores vast amounts of data. It is usually inside the computer but can be a separate peripheral on the outside. Hard discs are made up of several rigid coated metal discs. Currently, hard discs can store 15 to 30 Gb (gigabytes).
A floppy disc, 3.5" square, usually inserted into the computer and can store about 1.4 megabytes of data. The 3.5" square floppies have a very thin, flexible disc inside. There is also an intermediate-sized floppy disc, trademarked Zip discs, which can store 250 megabytes of data.

Disk drive

The equipment that operates a hard or floppy disc.

Domain

Represents an IP (Internet Protocol) address or set of IP addresses that comprise a domain. The domain name appears in URLs to identify web pages or in email addresses. For example, the email address for the First Lady is first.lady@whitehouse.gov, whitehouse.gov, being the domain name. Each domain name ends with a suffix that indicates what top level domain it belongs to. These are : .com for commercial, .gov for government, .org for organization, .edu for educational institution, .biz for business, .info for information, .tv for television, .ws for website. Domain suffixes may also indicate the country in which the domain is registered. No two parties can ever hold the same domain name.

Domain name

The name of a network or computer linked to the Internet. Domains are defined by a common IP address or set of similar IP (Internet Protocol) addresses.

Download

The process of transferring information from a web site (or other remote location on a network) to the computer. It is possible to download a file which include text, image, audio, video and many others.

DOS

Disk Operating System. An operating system designed for early IBM-compatible PCs.

Drop-down menu

A menu window that opens vertically on-screen to display context-related options. Also called pop-up menu or pull-down menu.

DSL

Digital Subscriber Line, a method of connecting to the Internet via a phone line. A DSL connection uses copper telephone lines but is able to relay data at much higher speeds than modems and does not interfere with telephone use.

DVD

Digital Video Disc. Similar to a CD-ROM, it stores and plays both audio and video.

E-book

An electronic (usually hand-held) reading device that allows a person to view digitally stored reading materials.

Email

Electronic mail; messages, including memos or letters, sent electronically between networked computers that may be across the office or around the world.

Emoticon

A text-based expression of emotion created from ASCII characters that mimics a facial expression when viewed with your head tilted to the left. Here are some examples:
  • Smiling
  • Frowning
  • Winking
  • Crying

Encryption

The process of transmitting scrambled data so that only authorized recipients can unscramble it. For instance, encryption is used to scramble credit card information when purchases are made over the Internet.

Ethernet

A type of network.

Ethernet card

A board inside a computer to which a network cable can be attached.

File

A set of data that is stored in the computer.

Firewall

A set of security programs that protect a computer from outside interference or access via the Internet.

Folder

A structure for containing electronic files. In some operating systems, it is called a directory.

Fonts

Sets of typefaces (or characters) that come in different styles and sizes.

Freeware

Software created by people who are willing to give it away for the satisfaction of sharing or knowing they helped to simplify other people's lives. It may be free-standing software, or it may add functionality to existing software.

FTP

File Transfer Protocol, a format and set of rules for transferring files from a host to a remote computer.

Gigabyte (GB)

1024 megabytes. Also called gig.

Glitch

The cause of an unexpected malfunction.

Gopher

An Internet search tool that allows users to access textual information through a series of menus, or if using FTP, through downloads.

GUI

Graphical User Interface, a system that simplifies selecting computer commands by enabling the user to point to symbols or illustrations (called icons) on the computer screen with a mouse.

Groupware

Software that allows networked individuals to form groups and collaborate on documents, programs, or databases.

Hacker

A person with technical expertise who experiments with computer systems to determine how to develop additional features. Hackers are occasionally requested by system administrators to try and break into systems via a network to test security. The term hacker is sometimes incorrectly used interchangeably with cracker. A hacker is called a white hat and a cracker a black hat.

Hard copy

A paper printout of what you have prepared on the computer.

Hard drive

Another name for the hard disc that stores information in a computer.

Hardware

The physical and mechanical components of a computer system, such as the electronic circuitry, chips, monitor, disks, disk drives, keyboard, modem, and printer.

Home page

The main page of a Web site used to greet visitors, provide information about the site, or to direct the viewer to other pages on the site.

HTML

Hypertext Markup Language, a standard of text markup conventions used for documents on the World Wide Web. Browsers interpret the codes to give the text structure and formatting (such as bold, blue, or italic).

HTTP

Hypertext Transfer Protocol, a common system used to request and send HTML documents on the World Wide Web. It is the first portion of all URL addresses on the World Wide Web.

HTTPS

Hypertext Transfer Protocol Secure, often used in intracompany internet sites. Passwords are required to gain access.

Hyperlink

Text or an image that is connected by hypertext coding to a different location. By selecting the text or image with a mouse, the computer jumps to (or displays) the linked text.

Hypermedia

Integrates audio, graphics, and/or video through links embedded in the main program.

Hypertext

A system for organizing text through links, as opposed to a menu-driven hierarchy such as Gopher. Most Web pages include hypertext links to other pages at that site, or to other sites on the World Wide Web.

Icons

Symbols or illustrations appearing on the computer screen that indicate program files or other computer functions.

Input

Data that goes into a computer device.

Input device

A device, such as a keyboard, stylus and tablet, mouse, puck, or microphone, that allows input of information (letters, numbers, sound, video) to a computer.

Instant messaging (IM)

A chat application that allows two or more people to communicate over the Internet via real-time keyed-in messages.

Interface

The interconnections that allow a device, a program, or a person to interact. Hardware interfaces are the cables that connect the device to its power source and to other devices. Software interfaces allow the program to communicate with other programs (such as the operating system), and user interfaces allow the user to communicate with the program (e.g., via mouse, menu commands, icons, voice commands, etc.).

Internet

An international conglomeration of interconnected computer networks. Begun in the late 1960s, it was developed in the 1970s to allow government and university researchers to share information. The Internet is not controlled by any single group or organization. Its original focus was research and communications, but it continues to expand, offering a wide array of resources for business and home users.

IP (Internet Protocol) address

An Internet Protocol address is a unique set of numbers used to locate another computer on a network. The format of an IP address is a 32-bit string of four numbers separated by periods. Each number can be from 0 to 255 (i.e., 1.154.10.255). Within a closed network IP addresses may be assigned at random, however, IP addresses of web servers must be registered to avoid duplicates.

Java

An object-oriented programming language designed specifically for programs (particularly multimedia) to be used over the Internet. Java allows programmers to create small programs or applications (applets) to enhance Web sites.

JavaScript/ECMA script

A programming language used almost exclusively to manipulate content on a web page. Common JavaScript functions include validating forms on a web page, creating dynamic page navigation menus, and image rollovers.

Kilobyte (K or KB)

Equal to 1,024 bytes.

Linux

A UNIX - like, open-source operating system developed primarily by Linus Torvalds. Linux is free and runs on many platforms, including both PCs and Macintoshes. Linux is an open-source operating system, meaning that the source code of the operating system is freely available to the public. Programmers may redistribute and modify the code, as long as they don't collect royalties on their work or deny access to their code. Since development is not restricted to a single corporation more programmers can debug and improve the source code faster.

Laptop and notebook

Small, lightweight, portable battery-powered computers that can fit onto your lap. They each have a thin, flat, liquid crystal display screen.

Macro

A script that operates a series of commands to perform a function. It is set up to automate repetitive tasks.

Mac OS

An operating system with a graphical user interface, developed by Apple for Macintosh computers. Current System X.1.(10) combines the traditional Mac interface with a strong underlying UNIX. Operating system for increased performance and stability.

Megabyte (MB)

Equal to 1,048,576 bytes, usually rounded off to one million bytes (also called a meg).

Memory

Temporary storage for information, including applications and documents. The information must be stored to a permanent device, such as a hard disc or CD-ROM before the power is turned off, or the information will be lost. Computer memory is measured in terms of the amount of information it can store, commonly in megabytes or gigabytes.

Menu

A context-related list of options that users can choose from.
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