Search engine optimization (SEO) cache overview

This process describes the SEO cache overview for a store that runs on the Transaction server, that is a store migrated from a previous release of WebSphere Commerce. For stores that run on the Store server, the SEO cache eliminates the REST queries for the Transaction server. SEO caching eliminates querying of database tables when deconstructing incoming SEO URLs, constructing SEO URLs via the wcf:url tag, and finding possible 301 redirect rules.

• SEOURLToken2URLKeywordCache (WCSEOURLToken2URLKeywordDistributedMapCache)
  This cache is used during the process of constructing the SEO URL to retrieve the URL keywords required.

• SEOURLKeyword2URLTokenCache (WCSEOURLKeyword2URLTokenDistributedMapCache)
  This cache is used during the process of parsing the incoming SEO URL to construct the matching dynamic URL.

• SEOURLCache (WCSEOURLDistributedMapCache)
  This cache is responsible for caching parsed SEO URLs. When an incoming SEO URL is parsed, the parser's result data is cached so that subsequent requests with the same URL can directly use the cached parser result instead of parsing the URL again.

• SEORedirectRulesCache (WCSEORedirectRulesDistributedMapCache)
  This cache is used to find the new URL keyword to be used, when an incoming URL being parsed contains an URL keyword that has been redirected.

Related tasks
Tuning the search engine optimization (SEO) cache