Incorrect Canonical URL Causing Indexing Issues for Our Domain

A canonical URL is a crucial SEO element that helps search engines understand the preferred version of a webpage. However, when implemented incorrectly, it can cause serious indexing issues, leading to lower rankings, decreased traffic, and duplicate content confusion for search engines.

If your website is facing indexing issues due to an incorrect canonical URL, this guide will help you identify, fix, and prevent these problems effectively.

How an Incorrect Canonical URL Affects Indexing?

Deindexing of Important Pages – If your canonical URL points to the wrong page (or a non-existent one), Google may ignore the actual page and remove it from search results.
Duplicate Content Issues – Misconfigured canonicals can confuse search engines, making them treat valid pages as duplicates, leading to poor ranking performance.
Loss of Link Equity – When multiple URLs should consolidate ranking signals to a single page, a wrong canonical tag can split link authority and reduce ranking potential.
Crawling Inefficiency – Googlebot may waste crawl budget on unnecessary pages while ignoring the actual page you want indexed.

How to Identify Incorrect Canonical URLs?

To diagnose incorrect canonical implementation, follow these steps:

Use Google Search Console

Navigate to Pages → Not Indexed → Alternate Page with Proper Canonical Tag.
If a page you expect to be indexed appears here, check its canonical tag.

Inspect the Page Source Code

Open your webpage in a browser.
Right-click and select View Page Source.
Look for the rel=”canonical” tag inside the <head> section:<link rel="canonical" href="https://www.example.com/correct-page/">
Ensure the canonical URL matches the preferred page version.

How to Fix Incorrect Canonical URLs?

1. Correct the Canonical Tag

If the canonical tag points to an irrelevant or broken URL, update it to the correct version:<link rel="canonical" href="https://www.example.com/preferred-page/">

2. Ensure Consistency Across Variants

All variations of a page (HTTP vs. HTTPS, www vs. non-www) should have the same canonical URL.
Example:
- Wrong: http://example.com/page/ canonicalizes to https://example.com/another-page/
- Right: http://example.com/page/ canonicalizes to https://example.com/page/

3. Fix Redirect Chains and Loops

Avoid redirecting a canonical URL to another redirected page.
Example:
- Wrong: Page A → Canonical to Page B → Page B redirects to Page C
- Right: Page A → Canonical to Page C

4. Check for Conflicting Canonical Directives

Ensure you do not use both a canonical tag and a noindex tag on the same page. This sends mixed signals to Google.<meta name="robots" content="noindex">
- Solution: Remove the noindex tag if you want the page indexed.

5. Use Canonicals for Pagination Properly

If you have paginated content (page-2, page-3), do not point all to Page 1.<link rel="canonical" href="https://www.example.com/page-2/">

Preventing Canonical URL Mistakes in the Future

Automate Canonical Tag Generation – Ensure CMS templates automatically insert the correct canonical URLs.
Review Canonicals Regularly – Use Google Search Console & SEO tools to monitor changes.
Properly Configure Redirects – Ensure 301 redirects align with the correct canonical pages.
Use hreflang Tags for International Sites – If your site has multiple language versions, implement hreflang correctly alongside canonicals.

Incorrect canonical tags can severely impact your website’s indexing and search visibility. By diagnosing and fixing these issues, you can restore your pages’ ranking potential and improve search performance.

Regular audits and proper canonical implementation will keep your site SEO-friendly and Google-compliant. If you’re still facing issues, consider consulting an SEO professional or using Google’s support forums.

Would you like a detailed case study or examples on this issue? Let me know in the comments!