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Do Search Engines Care About Valid HTML



L


ike most web developers,        current page you are on is valid  
I've heard a lot about the      html. It shows a green check when 
importance of valid html        the page is valid, an exclamation 
recently. I've read about how it      point when there are warnings,    
makes it easier for people with       and a red x when there are        
disabilities to access your site,     serious errors.                   
how it's more stable for                                                
browsers, and how it will make        I decided to use Yahoo! Buzz      
your site easier to be indexed by     Index to determine the top 5 most 
the search engines.                   searched terms for the day, which 
                                      happened to be "World Cup 2006",  
So when I set out to design my        "WWE", "FIFA", "Shakira", and     
most recent site, I made sure         "Paris Hilton". I then searched   
that I validated each and every       each term in the big three search 
page of the site. But then I got      engines (Google, Yahoo!, and MSN) 
to thinking - while it may make       and checked the top 10 results    
my site easier to index, does         for each with the validator. That 
that mean that it will improve my     gave me 150 of the most important 
search engine rankings? How many      data points on the web for that   
of the top sites have valid html?     day.                              
                                                                        
To get a feel for how much value      The results were particularly     
the search engines place on being     shocking to me - only 7 of the    
html validated, I decided to do a     150 resulting pages had valid     
little experiment. I started by       html (4.7%). 97 of the 150 had    
downloading the handy Firefox         warnings (64.7%) while 46 of the  
HTML Validator Extension              150 received the red x (30.7%).   
(http://users.skynet.be/mgueury/m     The results were pretty much      
ozilla/) that shows in the corner     independent of search engine or   
of the browser whether or not the     term. Google had only 4 out of 50 



results validate (8%), MSN had 3      validate, it had 6 errors!        
of 50 (6%), and Yahoo! had none.                                        
The term with the most valid          In perusing the web I also        
results was "Paris Hilton" which      noticed that immensely popular    
turned up 3 of the 7 valid pages.     sites like ESPN.com, IMDB, and    
Now I realize that this isn't a       MySpace don't validate. So what  
completely exhaustive study, but      is one to conclude from all of    
it at least shows that valid html     this?                             
doesn't seem to be much of a                                            
factor for the top searches on        It's reasonable to conclude that  
the top search engines.               at this time valid html isn't     
                                      going to help you improve your    
Even more surprising was that         search position. If it has any    
none of the three search engines      impact on results, it is minimal  
home pages validated! How             compared to other factors. The    
important is valid html if            other reasons to use valid html   
Google, Yahoo!, and MSN don't         are strong and I would still      
even practice it themselves? It       recommend all developers begin    
should be noted, however, that        validating their sites; just      
MSN's results page was valid          don't expect that doing it will   
html. Yahoo's homepage had 154        catapult you up the search        
warnings, MSN's had 65, and           rankings right now.               
Google's had 22. Google's search      

                              
results page not only didn't          






About the Author:

Adam McFarland owns iPrioritize - to-do lists that can be edited at any time from any place in the world. Email, print, check from your mobile phone, subscribe via RSS, and share with others.


Read more articles by: Adam McFarland

Article Source: www.iSnare.com


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