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Definition
SEO redirects are instructions that send visitors and search engines from one URL to another. They are used when a page moves, a website is rebuilt, duplicate URLs are consolidated, or old content needs to point to a better destination.
Handled well, redirects help preserve user access, crawlability and search signals. Handled poorly, they can cause broken links, indexing confusion, redirect chains and traffic loss.
Key Takeaways
- Use a 301 redirect when a URL has permanently moved, and use a 302 redirect only when the move is genuinely temporary.
- Redirect old URLs to the most relevant new page, not automatically to the homepage.
- Good redirect planning is especially important during website rebuilds, domain changes, HTTPS migrations and site architecture changes.
Quick Explanation
How Redirects Affect SEO
301 vs 302 Redirects for SEO
The two most common redirect types are 301 and 302. Choosing the right one matters because it changes how search engines interpret the move.
| Redirect Factor | 301 Redirect | 302 Redirect |
|---|---|---|
| Meaning | The URL has permanently moved to a new location. | The URL has temporarily moved, and the original may return. |
| Typical SEO Use | Best for website migrations, renamed pages, merged content and permanent URL changes. | Useful for short-term campaigns, temporary maintenance pages or limited testing. |
| Indexing Signal | Tells search engines to treat the new URL as the preferred long-term destination. | Tells search engines to keep the original URL in mind because the move may not be permanent. |
Redirect Types
Which Redirect Type Should You Use?
Do Not Redirect Everything to the Homepage
Process
How to Handle Redirects During a Website Change
A good redirect process starts before URLs are changed. The aim is to protect important pages, preserve logical pathways and give search engines a clear map from the old structure to the new one.
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Audit the Existing URLs
Export current URLs from the website, sitemap, analytics, Google Search Console and crawling tools where available. Include pages that attract organic traffic, backlinks, enquiries or sales.
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Map Each Old URL to a Relevant New URL
Match every important old page to the closest new destination. If a page no longer exists, choose the most useful related page. Avoid broad redirects unless there is no better option.
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Test, Launch and Monitor
Test redirects before launch where possible. After launch, crawl the site, review 404 errors, check indexing signals and update internal links, sitemaps and canonical tags.
SEO Redirect Checklist
Use this checklist before launching a site with changed URLs, new page structures or removed content.
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Create a redirect map before launch
List old URLs, new URLs and redirect types. This helps prevent rushed decisions during deployment.
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Update internal links and XML sitemaps
Internal links should point directly to the final URL, not through a redirect. The sitemap should include the current canonical URLs.
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Check for redirect chains and loops
A redirect chain sends a user through multiple steps. A redirect loop sends the browser in circles. Both can waste crawl budget and create poor user experience.
Redirect Mapping Example
A redirect map does not need to be complicated. It simply needs to show what each old URL should do after the website changes.
Old URL: /services/web-design-old
New URL: /web-design
Redirect Type: 301
Reason: Permanent service page replacement
Old URL: /promo-winter
New URL: /current-promotion
Redirect Type: 302
Reason: Temporary campaign redirect
Old URL: /blog/outdated-guide
New URL: /learning-centre/updated-guide
Redirect Type: 301
Reason: Updated content replaces old articleIn practice, the exact redirect implementation depends on the server, CMS, hosting setup and application framework.
Common Redirect Mistakes That Hurt SEO
Redirect issues often appear after a website launch because the old URL structure was not reviewed early enough. These mistakes are avoidable with planning and testing.
Leaving old pages to return 404 errors
Do this instead
If an old URL had traffic, backlinks or business value, redirect it to the closest relevant live page.
Using temporary redirects for permanent moves
Do this instead
Use a 301 redirect when the old URL is not coming back. This sends a clearer long-term signal to search engines.
Forgetting canonical tags and internal links
Do this instead
After redirects are added, update canonical tags, navigation links, content links and XML sitemaps so they point directly to final URLs.
Redirect Troubleshooting
If traffic drops, pages disappear from search or users report errors after a launch, redirects should be one of the first technical areas reviewed.
Old URLs are showing 404 errors
Likely cause
The redirect map may be incomplete, or the redirect rules may not have been deployed correctly.
Solution
Review crawl data, server responses and Google Search Console coverage reports. Add relevant 301 redirects for valuable old URLs.
Pages redirect through several URLs before loading
Likely cause
Older redirects may have been left in place across multiple rebuilds or HTTPS changes.
Solution
Update rules so each old URL redirects directly to the final destination where possible.
Search engines are indexing the wrong URL
Likely cause
Redirects, canonical tags, internal links and sitemap entries may be sending mixed signals.
Solution
Align the redirect, canonical tag, internal links and sitemap so they all support the preferred URL.
SEO Considerations
How Redirects Fit Into Technical SEO
Redirecting Old Content Instead of Deleting It
Advantages
- Users who saved, shared or clicked an old URL can still reach useful content.
- Search engines receive a clearer signal about where the old page has moved.
- Backlinks to retired URLs may continue to support relevant new pages.
Considerations
- Redirects should not point to unrelated pages simply to avoid a 404 error.
- Too many legacy rules can become difficult to maintain if they are not documented.
- Redirects may not preserve performance if the replacement page does not match the old search intent.
Professional Support
When Should You Get Help With Redirects?
Our Approach
How We Approach Redirects During Website Projects
Redirects and SEO FAQs
These answers cover common questions about redirect types, migration risk and SEO impact.
Do 301 redirects pass SEO value?
How long should redirects stay in place?
Can too many redirects hurt SEO?
Planning a Website Change or Migration?
If your website structure is changing, redirects should be planned before launch. We can review your current URLs, identify SEO risks and help create a cleaner migration pathway.