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SEO – Basic Programming Guidelines




1. No HTTP Error:

A web document (HTML or PHP file) should not contain any script error, either on the client
side or on the server side. All web documents should return ‘200 Ok’ server header.

Make sure a web document doesn’t return any HTTP error like :
     •   URL not found (broken link)
     •   URL not followed
     •   URL time out
     •   URL Unreachable



2. Page Load Time:

A web document should not take more than 5 seconds to complete download on a 56 KBPS
modem



3. W3C Validation:

All web documents must be valid ‘XHTML 1.0 Transitional’ documents and must clear the
W3C Markup Validation Test (http://validator.w3.org/)


All web documents/ CSS files must contain a Valid CSS code and must clear the W3C CSS
Validation Test.



4. Check in different browsers:

All web documents should look good and must be functional on different browsers: Internet
Explorer, Mozilla firefox, Netscape Navigator and Opera etc.


All web documents must be tested on Lynx Text Browser. Make sure that JavaScript,
cookies, session IDs, DHTML or Flash don't keep you from seeing your entire web document
in a text browser. If this guideline is not followed then search engines may have trouble in
crawling the web document.
5. Check Screen Resolutions:

Make sure that your web documents look good on different screen resolutions (esp. 1024 *
768 and 800 * 600), fonts and brightness settings.




6. Name of files:

The names of your domain, sub-domain, web documents, folders, image files, CSS files,
java script files/functions or any other file must be descriptive. For e.g.

     • Folders’ name should be something like this: /pregnancy/baby-names.html. Choose
       that name for your folder which clearly specifies what the folder contains. Static
       URLs are must. Do not use dynamic URLs.

     • If an image displays a ‘Plasma Screen’ then name of the image file must be
       something like this: plasma-screen. jpg and not like img34.jpg

     • Similarly, we should have file names like keyword.css, keyword.js and descriptive
       names for JavaScript functions’ or other functions, which clearly specifies the
       objective of the functions.



7. Naming Conventions:

A domain, sub-domain, directory or file name if contains more than one word, should be
separated by a hyphen ‘-‘ and not by underscore ‘_’.



8. Use complete addresses:

Use complete addresses and not relative addresses for all the links to web document, image
file, java script file, CSS file or any other file. For e.g.
<img src=http://www.abc.com/abc-images/plasma-scree.jpg alt=”Click here to buy Plasma
Screen” /> and not


<img src=”abc-images/plasma-scree.jpg alt=”Click here to buy Plasma Screen” />

<a href=http://www.abc.com/about-us.html”>about us</a> and not
<a href=”about-us.html”>about us</a>
<script language='javascript' src='http://www.abc.com/includes/jscript.js ‘></script> and
not
<script language='javascript' src='includes/jscript.js'></script>
<link href="http://www.abc.com/style/style.css" rel="stylesheet" type="text/css"> and not
<link href="style/style.css" rel="stylesheet" type="text/css">




9. Internal Search Engine:


Use internal search engines for big websites. This will facilitate navigation of the website.

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Web Design India Web Development Company Mumbai Websites Designing Company india Web Outsourcing to India

  • 1. SEO – Basic Programming Guidelines 1. No HTTP Error: A web document (HTML or PHP file) should not contain any script error, either on the client side or on the server side. All web documents should return ‘200 Ok’ server header. Make sure a web document doesn’t return any HTTP error like : • URL not found (broken link) • URL not followed • URL time out • URL Unreachable 2. Page Load Time: A web document should not take more than 5 seconds to complete download on a 56 KBPS modem 3. W3C Validation: All web documents must be valid ‘XHTML 1.0 Transitional’ documents and must clear the W3C Markup Validation Test (http://validator.w3.org/) All web documents/ CSS files must contain a Valid CSS code and must clear the W3C CSS Validation Test. 4. Check in different browsers: All web documents should look good and must be functional on different browsers: Internet Explorer, Mozilla firefox, Netscape Navigator and Opera etc. All web documents must be tested on Lynx Text Browser. Make sure that JavaScript, cookies, session IDs, DHTML or Flash don't keep you from seeing your entire web document in a text browser. If this guideline is not followed then search engines may have trouble in crawling the web document.
  • 2. 5. Check Screen Resolutions: Make sure that your web documents look good on different screen resolutions (esp. 1024 * 768 and 800 * 600), fonts and brightness settings. 6. Name of files: The names of your domain, sub-domain, web documents, folders, image files, CSS files, java script files/functions or any other file must be descriptive. For e.g. • Folders’ name should be something like this: /pregnancy/baby-names.html. Choose that name for your folder which clearly specifies what the folder contains. Static URLs are must. Do not use dynamic URLs. • If an image displays a ‘Plasma Screen’ then name of the image file must be something like this: plasma-screen. jpg and not like img34.jpg • Similarly, we should have file names like keyword.css, keyword.js and descriptive names for JavaScript functions’ or other functions, which clearly specifies the objective of the functions. 7. Naming Conventions: A domain, sub-domain, directory or file name if contains more than one word, should be separated by a hyphen ‘-‘ and not by underscore ‘_’. 8. Use complete addresses: Use complete addresses and not relative addresses for all the links to web document, image file, java script file, CSS file or any other file. For e.g. <img src=http://www.abc.com/abc-images/plasma-scree.jpg alt=”Click here to buy Plasma Screen” /> and not <img src=”abc-images/plasma-scree.jpg alt=”Click here to buy Plasma Screen” /> <a href=http://www.abc.com/about-us.html”>about us</a> and not <a href=”about-us.html”>about us</a>
  • 3. <script language='javascript' src='http://www.abc.com/includes/jscript.js ‘></script> and not <script language='javascript' src='includes/jscript.js'></script> <link href="http://www.abc.com/style/style.css" rel="stylesheet" type="text/css"> and not <link href="style/style.css" rel="stylesheet" type="text/css"> 9. Internal Search Engine: Use internal search engines for big websites. This will facilitate navigation of the website.