Google's Custom Search Engine (CSE) today received improvements to its on-demand indexing feature.
"First, a new On-Demand Indexing API is released, which'll allow to initiate indexing actions programmatically. Your content management systems can trigger these new APIs when new content is being published, so that changes on your website are reflected automatically in Custom Search results," informs Google.
Second, Google now allow to delete URLs from inclusion in search. "If a page on your site has been deleted, or has content that is inappropriate and you want to eliminate it from search results right away, you can list the URL in your sitemap and mark it for deletion by using an "expires" tag," explains Google.
"Based on the type of search engine you own, you have certain quotas for URL indexing and removal. You should be able to verify your quota usage in the control panel," google added.
For more information on delete URLs, and the new On-Demand Indexing API, please refer to this documentation.
[Source: Custom Search Blog]