Why duplicates happen
A shop may show the same product through a category path and a campaign URL. A test copy of a website might remain publicly accessible. Other duplicates arise after a move when both old and new addresses continue to serve the same content.
Google explains that some duplication is normal and not itself a spam-policy violation. Its canonicalisation documentation describes how it selects a representative URL from similar pages.
Compare purpose as well as wording
Imagine a stationery retailer with one page describing a notebook and another explaining how to choose paper for fountain pens. The pages may share a paragraph about paper weight, but they answer different questions.
Compare the main content, intended reader and next step. Repeated navigation, contact details or a short service condition does not automatically make two whole pages interchangeable.
Do not rewrite accurate specifications into awkward synonyms merely to make wording look different. Distinct pages need a distinct purpose, not artificial variation.
Choose the appropriate treatment
- Accidental copies: Decide which address should represent the content.
- Old page replaced: Consider a relevant permanent redirect.
- Variants that must stay accessible: Review canonical settings and consistent internal links.
- Different useful pages: Clarify their individual scope and keep the information accurate.
Our canonical URL guide explains the preference signal. The redirect guide covers moving visitors to a replacement.
Avoid combining unlike services
A repair company may offer installation and maintenance. Both pages mention the same equipment, but customers need different details. Pointing both at one canonical simply because they share vocabulary would misrepresent their relationship.
Instead, explain what each service includes and link between them where helpful. If two maintenance pages truly duplicate one another, keep the stronger complete explanation and plan the old route carefully.
Review the result
- Record the affected URLs and why they exist.
- Compare their main content.
- Agree which versions customers need.
- Align links, canonical information and sitemap entries.
- Recheck live pages and search reports after processing.
Fix the cause as well as the visible symptom. If a template keeps generating unintended copies, changing one page will not prevent more from appearing.