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Introduction
To avoid duplicate content web sites can make use of the canonical link. When pages for different languages/regions come into play there you can use the href lang link in the HTML <head> section to indicate similar content for other languages/regions (e.g., on product detail pages, content pages, catalog pages). These links can be enabled/disabled in the channel specific preferences.
References
- Concept - URL Rewriting (from 7.10.5)
- Concept - URL Rewriting (7.8 - 7.10.3)
Special Link Rewriting: a short notation for creating storefront links to categories, products or other CMS pages.
Example
The United States product page under http://myshop.com/en/products/yellow_sweater (en-us) may have the same content as the British pendant (en-gb). It is a good practice to use the <link> element with a hreflang attribute set for all languages to avoid duplicate content. So search engines provide language/region specific results and content is not regarded as duplicated.
<head> .. <link rel="alternate" hreflang="en-us" href="http://myshop.com/us/product/yellow_sweater" /> <link rel="alternate" hreflang="en-gb" href="http://myshop.com/uk/product/yellow_sweater" /> <link rel="alternate" hreflang="de-de" href="http://myshop.com/de/produkt/gelber_pullover" /> </head>
Target
Link elements with the hreflang attribute are placed in the <head> section of HTML storefront pages. They are automatically created in all available languages on the following pages: product pages, catalog pages, content pages and the Store Finder page.
Configuration
- Log on to the Commerce Management application.
- Go to Channel Preferences.
- Go to the SEO Settings section.
- Here you can enable/disable the href lang feature.
Approach
Use the Custom Link Rewriting to create links like:
Page | Custom Link |
|---|---|
| Product Detail |
|
| Category Detail |
|
| Content Page |
|
| Any page |
pipeline://ViewStorefinder-Start?localeId=en_US&highlight=true
|
The appended parameter localeId determines the locale of the created link.
Technical
There are four pipelets supporting the href lang link generation:
CreateProductHRefLangListCreateCategoryHRefLangListCreatePageHRefLangListCreatePipelineHRefLangList
<islink link="#hreflang:link#> module. Currently they are used in ViewStandardCatalog-Browse/Refresh, ViewProduct-Start, ViewContent-Start and in ViewStoreFinder-Start/Search/Paging . The link element are currently rendered within the app_sf_responsive_cm/staticfiles/cartridge/templates/default/modules/cms/DefaultPageStructure.isml in dependence of the channel preference HRefLangEnabled is true or false.
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