Professional Search Engine Optimization (Seo). Developer’s Guide to SEO

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Creating such a request programmatically is simple. For example, using the cURL library, the following

code would do the trick:

$sitemapUrl = SITE_DOMAIN . SITE_FOLDER . ‘/sitemap.xml’;

$pingUrl = “http://www.google.com/webmasters/sitemaps/ping?sitemap=” .

urlencode($sitemapUrl);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $pingUrl);

curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);

$result = curl_exec($ch);

Program logic can be implemented that executes the preceding code whenever changes occur to your

Google sitemap, such as whenever a product or content page is modified.

The Sitemaps.org Standard Protocol

At the time of writing, there is a brand new initiative in the works standardizing a search engine site

maps protocol for all search engine vendors. The standard and information is available at

http://

www.sitemaps.org/

. It adheres mostly to the Google standard, but its XML namespace is different:

becomes:

Also, using this sitemaps protocol does not require creating any account with the particular search

engine vendors. Rather, you must simply “ping” a URL in the following format with the location of

the sitemap at least once (and optionally more when there are updates):

<searchengine_URL>/ping?sitemap=sitemap_url

At this time, the only search vendor adhering to this standard is Google — recognizing requests such as:

http://www.google.com/webmasters/sitemaps/ping?sitemap=www.example.com/sitemap.xml

MSN hasn’t implemented this functionality yet, but Yahoo! supports sitemap notification using this

(non-standard) request:

http://search.yahooapis.com/SiteExplorerService/V1/updateNotification?appid=[YOUR_Y

AHOO_APPLICATION_ID]&url=http://www.example.com/sitemap.xml

To get a Yahoo Application ID visit

http://api.search.yahoo.com/webservices/

register_application

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Chapter 9: Sitemaps

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