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Module 03 / Lesson 16 · Read, apply, check
Choose canonical signals, redirects or distinct pages according to the actual relationship between URLs.
Begin by comparing the purpose and substance of the URLs. Tracking parameters, print versions and alternate paths may expose substantially the same page. Different products or genuinely different customer tasks may deserve separate pages. Do not label every pair sharing a keyword as duplicate content or consolidate pages solely to simplify a spreadsheet.
A canonical declaration indicates a preferred representative among duplicate or very similar pages. It is a signal rather than an absolute command, and Google may select a different URL. Keep internal links, sitemaps and canonical declarations consistent. Do not point unrelated pages at a commercially attractive URL and expect their distinct value to transfer.
A redirect sends people and crawlers from an old URL to another location. For a permanent move, use an appropriate permanent redirect and map the old page to a relevant replacement. Avoid chains and mass redirects to an unrelated homepage. Update internal references so visitors can reach the final destination directly.
Check response behavior, final destinations, canonical information and the content actually shown. Test representative URLs rather than assuming a successful deployment covered every case. Monitor important pages after a migration and retain a mapping record. A technically valid redirect can still be a poor decision if it lands the visitor on irrelevant material.
Use an appropriate permanent redirect to a relevant replacement; update internal links.
Consider consistent canonical signals for the preferred representation.
Use the mechanism appropriate to a temporary move; do not label every move permanent.
Choose suitable removal handling instead of redirecting everything to an unrelated homepage.
Hypothetical example: a retailer’s camera category is available at a clean URL and at several tracking-parameter variants. The variants show the same content, so the team aligns canonical signals and internal links around the preferred category URL. Separately, an old camera buying guide has moved to a new path with equivalent updated advice. That old path receives a permanent redirect to the new guide, and internal references are updated. A distinct guide for professional video cameras remains separate because it serves a different decision. The team tests all three cases and records expected behavior. It has chosen mechanisms based on URL relationships rather than applying one canonical tag or homepage redirect everywhere.
Another retailer redirects every discontinued product to its homepage, including items with no equivalent replacement. Visitors who expected specific specifications arrive at a generic storefront with no explanation. Depending on the product and business need, an informative discontinued page, a genuinely relevant replacement or an appropriate unavailable response may be preferable. The best treatment follows the user’s need and actual content relationship.
Misconception: a canonical tag is the same as a redirect. Correction: a canonical signal concerns preferred representation in search; a redirect changes where the request goes. Confusing them can leave users on unwanted versions or remove pages that should remain accessible.
International variants, pagination and complex catalogs need more specialized analysis. A broad canonical rule can erase distinctions unintentionally. Preserve a reversible deployment plan and seek technical review for changes affecting many valuable URLs.
Do this today · 30 minutes
Classify six URL pairs as equivalent variants, permanent moves or genuinely distinct pages. Choose the appropriate treatment, then write the expected user destination and search representation for each pair.
Use an authorized page or campaign relevant to this lesson, or work entirely from the illustrative sample below. Record proposed changes as drafts until they are approved and implemented.
A tracking variant duplicates a guide; an old service URL moved permanently; a different service remains distinct.
Before: Redirect or canonicalize every similar-looking URL to one page.
After: Treat duplicates, moves and distinct resources according to their actual relationship.
Notes stay in this browser. Download a copy to keep them.
Inspect representative URLs after implementation and retain the mapping for future changes.
Before you move on
A guide has permanently moved to a new URL with equivalent content, while a tracking parameter creates duplicate versions of a category page. A separate specialist guide serves a different audience. Which treatment best matches these three relationships without removing useful distinctions?
Next lesson →Lesson edition 2 · References reviewed 14 October 2026 · Practical exercise reviewed 15 October 2026. Examples are illustrative teaching scenarios.
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