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SEO Canonicalisation


Canonicalisation in terms of SEO

Show Google which one is the Preferred URL or Main URL

Canonicalisation Code Implementation

<link rel="canonical" href="http://example.com" />

Similar Pages in the eyes of Google

All below pages are the same:


  • http://www.example.com/
  • http://example.com/

Apache Web Server

  • http://example.com/index.html
  • http://www.example.com/index.html
  • http://example.com/index.php
  • http://www.example.com/index.php

Microsoft Internet Information Services (IIS)

  • http://www.example.com/default.asp (or .aspx )
  • http://example.com/default.asp (or .aspx)

Use Redirection to the Preferred URL

This has to be considered if we have exactly same page with multiple URL’s as mentioned above.

  • 301 HTTP status code : Moved Permanently
  • 302 HTTP status code : Moved Temporarily

Canonicalisation for Various Parameters in the URL

  • http://example.com/
  • http://example.com/?track=123
  • http://example.com/?track=431

In this above example, the parameter “track” is being used for tracking, in which case the content of the page remains the same.

This has to be explained to Google in order prevent duplicate content issues

Hence canonicalisation is important in terms of On Page SEO

LSI Keywords


LSI Keywords ( or Latent Semantic Indexing Keywords ) is an SEO Term for related keywords or synonyms.


Lets say the keyword is “on page seo”

So the LSI Keywords are:

  • on page seo checklist
  • on site seo
  • on-page seo
  • on page seo techniques
  • on page seo service
LSI Keywords
LSI Keywords
LSI Keywords Example
LSI Keywords Example


Schema Website Markup in JSON-LD

<script type="application/ld+json">
{ "@context": "http://schema.org",
"@type": "WebSite",
"url": "[website url]",
"potentialAction": {
"@type": "SearchAction",
"target": "[website search url]={search_term}",
"query-input": "required name=search_term"

Schema Organisation Logo in HTML


Schema Organisation Logo Implementation in HTML

<div itemscope itemtype="http://schema.org/Organization">
  <a itemprop="url" href="http://www.example.com/">Home</a>
  <img itemprop="logo" src="http://www.example.com/logo.png" />

Schema Organisation markup as JSON-LD code



<script type="application/ld+json">
{ "@context" : "http://schema.org",
"@type" : "Organization",
"name" : "[organization name]",
"logo" : "[logo image url]",
"url" : "[website url]",
"sameAs" : [