301 and 302 redirects are indispensable tools in the world of the web and search engine optimisation (SEO). They send users, visitors and search engines from one URL to another. If you manage a website, it is essential to understand these redirects and their impact on your SEO strategy (especially in the case of a redirect plan).
In this article we will explore everything you need to know about 301 and 302 redirects.
What is a 301 redirect?
A 301 redirect, or “301 Moved Permanently”, is a permanent redirect from one URL to another. It tells search engines, such as Google, that the original page has been moved for good. Here are a few typical use cases:
- Changing a page’s URL: during a website redesign or a restructuring of the site architecture.
- Merging several web pages: when you combine several pages into one for better optimisation.
- Handling 404 errors: fixing broken links or sending users to a working page.
A 301 redirect passes on up to 90-99% of the SEO “link juice” from the old URL to the new one, which makes it a valuable tool for maintaining or improving your rankings.
The difference between 301 and 302 redirects
While a 301 redirect is permanent, a 302 redirect is temporary. This distinction is crucial:
- 301 redirect (permanent): suitable when the old URL will no longer be used. Search engines update their indexes to reflect the change.
- 302 redirect (temporary): used for temporary changes, such as a page under maintenance. Search engines don’t pass on link juice.
For SEO, it is important to choose the right redirect to avoid problems such as indexing errors or a loss of traffic.
How to set up a 301 redirect
Using the .htaccess file (Apache servers)
The .htaccess file makes it easy to configure 301 redirects on an Apache server. Here is a simple example:
Redirect 301 /old-page.html https://www.yoursite.com/new-page.html
For advanced configurations, such as URL rewriting with mod_rewrite, use a syntax like this:
RewriteEngine On
RewriteRule ^old-page.html$ /new-page.html [R=301,L]
Redirects via cPanel
Many hosting providers offer a graphical interface in cPanel to set up 301 redirects without having to edit the .htaccess file.
Managing redirects with popular CMSs
The main CMSs have plugins or modules to manage 301 redirects easily:
- WordPress: use plugins such as “Redirection” or “Yoast SEO”.
- PrestaShop: set up redirects in the SEO & URLs tab.
- Shopify: manage redirects from the admin panel.
- Magento, Drupal and Joomla: specific extensions are available to automate redirects.
Best practices for 301 redirects
Keep a clean hierarchy
Make sure each redirect points straight to the final target page, avoiding redirect chains. Complex chains can slow down loading time and harm the user experience.
Test your redirects regularly
Use tools such as Screaming Frog or Google Search Console to run technical audits, identify any remaining 404 errors and check that all redirects work properly.
Communicate with search engines
Back up your redirects with an up-to-date XML sitemap to help Google understand the changes and optimise your crawl budget.
Optimise the target content
Once the redirect is in place, make sure the target page offers a quality experience and meets users’ expectations.
Impact of 301 redirects on SEO
1. Preserving your rankings
By correctly redirecting an old URL to a new one, you avoid losing the SEO link juice you have built up. This is essential during a website redesign.
2. Fewer 404 errors
301 redirects let you fix 404 errors, which improves the user experience and avoids lost traffic.
3. Signalling to search engines
Google reads a 301 redirect as a sign that the original page is obsolete. This lets search engines update their indexes quickly.
4. Better responses to requests
A correctly configured redirect ensures that browsers and search engines respond efficiently to users’ requests, avoiding potential errors.
Common mistakes with 301 redirects
- Redirect loops: they happen when the redirect rules are not configured properly, causing an endless cycle.
- Wrong targets: a 301 redirect must point to a relevant page to avoid a poor user experience.
- Multiple chains: too many successive redirects slow down page loading.
- Incorrect HTTP response configuration: make sure the 301 response is actually sent to the browser to guarantee predictable behaviour.
301 redirects on specific platforms
WordPress
Use plugins such as “Redirection” or “Yoast SEO” for a quick setup. They also let you monitor 404 errors.
PrestaShop, WooCommerce and Magento
These platforms offer dedicated modules to manage redirects and optimise ecommerce SEO.
Shopify, Drupal and Joomla
These CMSs have tools to set up redirects and avoid indexing problems.
Why use redirects?
301 redirects are an essential part of managing websites and SEO. Used well, they maintain your rankings, improve the user experience and fix errors. Whether you use WordPress, PrestaShop, Shopify or other platforms, it is crucial to understand how they work and to follow best practices.
Don’t hesitate to test your redirects and monitor their impact on your SEO strategy.
