Thursday, May 21, 2009
Google’s study on effectiveness of sitemaps
Google have given an insight into the effectiveness of sitemaps through a recent study.
Sitemaps are an easy way for web site owners to help search engines index pages on their web sites. Google initially announced sitemaps as an experiment back in 2005, with Yahoo! and Microsoft jumping on board not long after.
Until now, there has been little research to conclude how effective sitemaps really are, well until now that is.
The study was based around 3 website case studies - Amazon, CNN, and Pubmed.
Amazon’s sitemaps include around 20 million URLs. They also take effort to indicate the canonical, or best URL versions, of product pages in their XML sitemap.
CNN’s approach to XML sitemaps focuses upon helping a search engine find the many new URLs which are added daily, and also addressing canonical issues with their pages.
Pubmed has a huge archive of URLs listed in their XML sitemaps; however they don’t update these often (the change rate of URLs listed is monthly).
It was quite a detailed study with the final paper being 10 pages long. Knowing that your lives are no doubt too busy to read this, here is a rundown on some interesting facts:
* Approximately 35 million Sitemaps were published, as of October 2008.
* The 35 million Sitemaps include “several billion” URLs.
* Most popular Sitemap formats include XML (77%), Unknown (17.5%), URL list (3.5%), Atom (1.6%) and RSS (0.11%).
* 58% of URLs in Sitemaps contain the last modification date.
* 7% of URLs contain the change frequency field.
* 61% of URLs contain the priority field.
If you would really like to read the 10 page summary of the study, then you can find it here. Sitemaps Review. It's available in either PDF or powerpoint formats.
If you’re not using XML sitemaps on your web site, then this study highlights the need for you to consider adding them. If you would like some help with creating or using sitemaps, then please ask Dr Search the Principal Consultant at the Search Clinic.
Sitemaps are an easy way for web site owners to help search engines index pages on their web sites. Google initially announced sitemaps as an experiment back in 2005, with Yahoo! and Microsoft jumping on board not long after.
Until now, there has been little research to conclude how effective sitemaps really are, well until now that is.
The study was based around 3 website case studies - Amazon, CNN, and Pubmed.
Amazon’s sitemaps include around 20 million URLs. They also take effort to indicate the canonical, or best URL versions, of product pages in their XML sitemap.
CNN’s approach to XML sitemaps focuses upon helping a search engine find the many new URLs which are added daily, and also addressing canonical issues with their pages.
Pubmed has a huge archive of URLs listed in their XML sitemaps; however they don’t update these often (the change rate of URLs listed is monthly).
It was quite a detailed study with the final paper being 10 pages long. Knowing that your lives are no doubt too busy to read this, here is a rundown on some interesting facts:
* Approximately 35 million Sitemaps were published, as of October 2008.
* The 35 million Sitemaps include “several billion” URLs.
* Most popular Sitemap formats include XML (77%), Unknown (17.5%), URL list (3.5%), Atom (1.6%) and RSS (0.11%).
* 58% of URLs in Sitemaps contain the last modification date.
* 7% of URLs contain the change frequency field.
* 61% of URLs contain the priority field.
If you would really like to read the 10 page summary of the study, then you can find it here. Sitemaps Review. It's available in either PDF or powerpoint formats.
If you’re not using XML sitemaps on your web site, then this study highlights the need for you to consider adding them. If you would like some help with creating or using sitemaps, then please ask Dr Search the Principal Consultant at the Search Clinic.
Labels: Dr Search, Search Clinic, search engine marketing, Search Marketing
# posted by Dr Search- Principal Consultant at the Search Clinic : Thursday, May 21, 2009
0 Comments
Links to this post
Monday, May 18, 2009
SEO- will search engine optimisation still exist in 5 years?
SEO- will search engine optimisation still exist in 5 years? Mr Google, Matt Cutts was recently asked if SEO will still exist in 5 years.
Matt kindly put his answer in a short video which you can check out here:
Matt kindly put his answer in a short video which you can check out here:
The short answer from Matt is yes, SEO will definitely be around in another 5 years.
Matt used the analogy of SEO being like polishing your resume; you will continue to apply polishes to your website through SEO, especially through canonicalization.
The one thing that Google hopes to change within the 5 years is for black hat SEO (or “crap hat SEO” as Matt calls it) techniques to become less productive and eventually disappear altogether.
With so many white hat SEO techniques being used, I tend to agree with Matt, I can’t see SEO dying anytime soon. What do you think? Share your thoughts below.
Need some help with your website’s SEO? Check out our range of affordable SEO solutions here.
Labels: Search Engine Optimisation, Search Marketing, SEO Services
# posted by Dr Search- Principal Consultant at the Search Clinic : Monday, May 18, 2009
0 Comments
Links to this post
Subscribe to Posts [Atom]
