Here is an example to verify the canonical tag on a web page using Selenium GetLocation. The selenium script is written in C#

public int CheckCanonicalTag()
{
int resultcount = 0;
string URL = selenium.GetLocation();
if (selenium.IsElementPresent("//link[@rel='canonical' and @href='" + System.Web.HttpUtility.UrlDecode(URL) + "']"))
{
Console.WriteLine( "Canonical tags is present on the page :" + URL);
}
else
{
Console.WriteLine( "Canonical tags is not present on the page :" + URL);
resultcount++;
}
return resultcount;
}


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