What are the importance of ! doctype and tag in webpage.

Subject Web Engineering
NU Year Set: 1.(c) Marks: 4 Year: 2017

In HTMLThe doctype declaration is not an HTML tag. it is an instruction to the web browser about what version of the markup language the page is written in. It helps the other programmer to identify the version of HTML. The doctype declaration should be the very first thing in an HTML document before the tag doesn't need to use! doctype but in HTML 5 there is necessary to use in! doctype tags.

Meta Tags have been one of the most basic elements of SEO. It is a must to know for every SEO practitioner. Are meta tags a factor in Google page rank? Is it important? What effect does it have in your site’s SEO?

Meta tags have been around since… Since I can remember. They have been a big part in search engine history. They were valued as a factor in rankings before – until people started abusing their use in getting on top of the SERPs. After that, Google opted for meta tags out of the ranking factors. But that doesn’t mean they’re not important anymore. Meta tags still play quite a big role in your site’s SEO.

Meta tags are the words that are hidden in your code. People browsing your site will just not be able to see them. 
Meta tags are located inside your html’s head area.
<head>Meta tags are located here</head>
1. Title – The title tag is the title text that is shown in search engine listings. I know that this is not necessarily a meta tag, but it similarly functions like one.
<title>Title text here</title>
2. Description – The meta description tag is where you would want to put your site’s summary. This is where you put what your site is all about and what you are offering people. It should not be too long because the search engines only read up to a certain number of words.
<meta name=”description” content=”This is where you put your site’s summary”/>
3. Keywords – The meta keywords tag is where you put all of the keywords you use in your site. This is basically where you want the words which will take you to the top of the SERPs page to be. Your keywords are important – even if you take away all of the other words, the user should be able to know what your site is all about when they read your keywords.
<meta name=”keywords” content=”SEO, Hacker, Google, Search, etc”/>
These three things make up your meta tags.



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Fahim Ahmed on 8 months ago

Answer is too long . Please make answer to the point.