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canonical

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更新日2026年3月20日 12:19

Use this to manage URL authority and prevent duplicate content issues across the storefront

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decocms

decocms/storefront-skills

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Canonicalization Strategy

Use a self-referential canonical tag on every unique product, category, and CMS page (the "clean" URL should point to itself).
Use absolute URLs (including https:// and the full domain) to avoid ambiguity between environments, protocols (HTTP vs HTTPS), or subdomains.
Ensure the canonical target is indexable: it must return a 200 OK status and must not have a noindex tag.

E-commerce Specific Scenarios

Faceted Navigation & Filters: - Point the canonical to the main category for URLs created by sorting (?sort=price), view toggles (?view=grid), or tracking parameters (e.g., ?utm_source=...).
- Only allow a unique canonical if the filter creates a distinct, high-value landing page (e.g., a specific "Brand + Category" combination with high search volume).
Product Variations: - If a product has multiple URLs for different colors/sizes but the content is nearly identical, point the canonical to the primary product version.
- If each variation is a distinct marketing asset with its own unique description and SKU, use a self-referential canonical for each.
Cross-Categorization: When a product lives in multiple categories (e.g., /sale/product and /electronics/product), pick the most relevant or original path as the canonical to avoid splitting authority.

Technical Rules

Single Tag Policy: Ensure only one <link rel="canonical"> exists in the <head>. Multiple tags cause search engines to ignore the instruction entirely.
Sitemap Alignment: The URL defined as canonical must match the URL listed in the sitemap.xml. Discrepancies send conflicting signals to crawlers.
Pagination: For paginated results (e.g., ?page=2), use a self-referential canonical. Do not point page 2 to page 1, as this prevents search engines from discovering products deeper in the catalog.

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name	canonical
description	Use this to manage URL authority and prevent duplicate content issues across the storefront

Canonicalization Strategy

Use a self-referential canonical tag on every unique product, category, and CMS page (the "clean" URL should point to itself).
Use absolute URLs (including https:// and the full domain) to avoid ambiguity between environments, protocols (HTTP vs HTTPS), or subdomains.
Ensure the canonical target is indexable: it must return a 200 OK status and must not have a noindex tag.

E-commerce Specific Scenarios

Faceted Navigation & Filters: - Point the canonical to the main category for URLs created by sorting (?sort=price), view toggles (?view=grid), or tracking parameters (e.g., ?utm_source=...).
- Only allow a unique canonical if the filter creates a distinct, high-value landing page (e.g., a specific "Brand + Category" combination with high search volume).
Product Variations: - If a product has multiple URLs for different colors/sizes but the content is nearly identical, point the canonical to the primary product version.
- If each variation is a distinct marketing asset with its own unique description and SKU, use a self-referential canonical for each.
Cross-Categorization: When a product lives in multiple categories (e.g., /sale/product and /electronics/product), pick the most relevant or original path as the canonical to avoid splitting authority.

Technical Rules

Single Tag Policy: Ensure only one <link rel="canonical"> exists in the <head>. Multiple tags cause search engines to ignore the instruction entirely.
Sitemap Alignment: The URL defined as canonical must match the URL listed in the sitemap.xml. Discrepancies send conflicting signals to crawlers.
Pagination: For paginated results (e.g., ?page=2), use a self-referential canonical. Do not point page 2 to page 1, as this prevents search engines from discovering products deeper in the catalog.