The causes of duplicate content
Posted: Sat Apr 19, 2025 9:44 am
A page can be accessed with and without www.
Online shops with product variants: If each variant of the product (size, color, etc.) has its own URL, but the product descriptions are identical except for the variation, duplicate content can arise.
Very similar landing pages (e.g., for local SEO). If they differ complete cell phone number list only in the city name and are otherwise identical, this can cause problems.
Indexed URL parameters, such as those generated by session IDs, filters, or internal searches. The content on these URLs is then identical.
An article is assigned to several categories of a blog or online magazine and these categories are located in the path of the URL.
Prevent duplicate content with the canonical tag
You can prevent duplicate content in search engines by using the canonical tag. The canonical tag contains the URL of the "original" page and thus tells search engines which page should actually appear in the search results.
Online shops with product variants: If each variant of the product (size, color, etc.) has its own URL, but the product descriptions are identical except for the variation, duplicate content can arise.
Very similar landing pages (e.g., for local SEO). If they differ complete cell phone number list only in the city name and are otherwise identical, this can cause problems.
Indexed URL parameters, such as those generated by session IDs, filters, or internal searches. The content on these URLs is then identical.
An article is assigned to several categories of a blog or online magazine and these categories are located in the path of the URL.
Prevent duplicate content with the canonical tag
You can prevent duplicate content in search engines by using the canonical tag. The canonical tag contains the URL of the "original" page and thus tells search engines which page should actually appear in the search results.