Skip to main content

301 vs 308 Redirects: Which is Best for Site Migration?

By January 2, 2024No Comments

When you’re moving your website to a new domain or restructuring URLs, you’re faced with a critical choice: 301 or 308 redirects? It’s not just about telling browsers and search engines where your content has moved; it’s about preserving your hard-earned SEO value.

I’ve navigated the tricky waters of site migrations more times than I can count, and I know the importance of choosing the right redirect. A 301 is the well-known classic for permanent redirects, but have you heard about the 308? It’s the new player in town, ensuring clients don’t switch request methods during a redirect.

Let’s dive into the nuances of 301 and 308 redirects, so you can make an informed decision for your site migration. After all, the right redirect can be the difference between a seamless transition and a ranking rollercoaster.

What are site migrations?

Understanding site migrations is crucial for website managers and SEO specialists. Essentially, a site migration is any event where a website undergoes substantial changes that can affect its search engine visibility. These changes could involve the site’s structure, platform, content, design, or location. For instance, if I decide to move my blog from one domain to another, that’s a classic case of a site migration.

Typically, a migration aims to improve the site’s performance or enhance the user experience. However, without careful planning, the transition can negatively impact a site’s SEO and user accessibility. That’s why it’s essential to use the proper redirects during a migration.

There are several types of site migrations:

  • Domain Change: Moving from one domain to another.
  • Site Location Change: Shifting from HTTP to HTTPS.
  • Structural Changes: Altering the architecture of a website, like its URL structure.
  • Platform Change: Switching from one website CMS to another.

Each type requires careful execution to retain the website’s search engine ranking and authority. Overlooking even minor details during a migration may lead to broken links and lost traffic. Redirections play an integral role in preserving the website’s existing SEO value and ensuring that users can still find what they’re looking for.

Redirects are like digital signposts that tell browsers and search engines where content has moved. They prevent 404 errors by guiding search bots and visitors to the correct page, even if it’s been relocated or renamed. By choosing the right type of redirect—301 or 308—you’re ensuring that the flow of traffic and the authority of your pages remain intact during and after the site migration process. This smooth hand-off is vital for maintaining the site’s visibility and ranking.

The importance of choosing the right redirect

When it comes to site migrations, I can’t stress enough how pivotal it is to select the correct type of redirect. Redirects serve as the lynchpin in preserving SEO authority and ensuring a seamless user experience. Search engines view redirects as indicators of where content has moved and I’ve found that implementing the right one directly influences the retention of a site’s search ranking and authority.

301 Redirect: The SEO Beacon

A 301 redirect signals that a page has been permanently moved to a new location. I often recommend it because it transfers the majority of the original page’s link equity to the new URL, which is critical for maintaining page ranking. For users, it means they’re deftly directed to the right content without hitting dead ends, which elevates user experience and retains traffic.

308 Redirect: The Permanent Successor

On the flip side, a 308 redirect is a newer alternative asserting a permanent move of resources. It’s less common but ensures that all requests are repeated using the same method, be it GET or POST. This is crucial for form submissions or when the method must not change – preserving data integrity across the redirection.

Timing and Execution

The timing and the execution of implementing these redirects cannot be taken lightly. I’ve observed that early adoption of proper redirects minimizes traffic disruption. It’s important to roll them out as soon as the new site structure is active to avoid any loss of ranking. This is particularly vital during:

  • Domain changes
  • URL restructuring
  • Platform migrations
  • Design overhauls

Redirects are essential tools in the digital toolbox. I ensure to use them strategically to keep both search engines and users informed. It’s about creating a bridge from the old to the new while safeguarding the site’s hard-earned SEO capital.

Mapping Redirects to Align with User Intent

Careful planning in the mapping of old URLs to their new counterparts is a prerequisite to a successful site migration. By thoroughly understanding user intent and the relationship between content, I’m able to align redirects so that they support the logical flow of information. This step is not merely technical, it’s also a strategic endeavor to enhance content discoverability and relevance.

Understanding 301 redirects

When I delve into the world of 301 redirects, I’m looking at one of the most common and powerful tools in my SEO arsenal. A 301 redirect signals to search engines that a page has permanently moved to a new location. This is essential when I’m reorganizing my site, changing domains, or consolidating content. It ensures that the link equity – the value passed from one site to another – isn’t lost. In my experience, preserving link equity is vital to maintaining organic rankings.

Here’s what happens technically: when a user or a search engine bot requests the original URL, the server responds with a 301 status code, indicating that the resource has permanently moved. The browser or bot is then automatically directed to the new URL. What’s great about a 301 redirect is its reliability. It’s recognized across all browsers, ensuring a consistent user experience.

Employing 301s also means safeguarding against content duplication issues. By pointing multiple URLs that could be considered duplicate content to one canonical version, I reduce the risk of confusion in search engines and focus the authority on one preferred page. For instance, if I’m merging two similar articles into a more comprehensive guide, I’ll use a 301 redirect to point the old URLs to the new combined resource.

Setting up 301 redirects isn’t overly complicated, but it does require access to the server or the use of a plugin if using a content management system like WordPress. In my setup checklist, I always ensure to:

  • Audit all existing URLs for relevancy and value
  • Create a mapping from old URLs to new ones
  • Implement the 301 redirects on a staging environment first to test them
  • Monitor traffic and rankings to ensure they remain stable post-migration

Mastering 301 redirects takes time, but once I got the hang of it, it drastically improved my site’s ability to adapt and grow without sacrificing hard-earned SEO gains.

Understanding 308 redirects

While 301 redirects are a go-to choice for many webmasters during site migrations, there’s another player in the game that’s worth paying attention to: 308 redirects. Similar to 301s, 308 redirects also indicate that a resource has moved permanently. However, they have a specific nuance that sets them apart – they maintain the request method from the original request to the new destination.

In simpler terms, if someone tries to post data to a page that’s been moved and a 308 redirect is in place, the data submission method, typically POST, will be used for the redirected request too. This feature makes 308 redirects particularly useful for API endpoints where it’s crucial to preserve the method to prevent data loss or unintended behavior.

Let’s delve into the technical side a bit. With a 301 redirect, browsers may change the request method from POST to GET, which can result in critical data not being forwarded to the server. When a 308 is used, this cannot happen – the method remains unchanged ensuring the full request reaches the new location as intended.

Numerical Comparison Between 301 and 308 Redirects

Type Request Method Preservation Main Usage
301 Changes POST to GET General resource relocation
308 Maintains original method Resource relocation for APIs and form submissions

In practice, implementing 308 redirects is akin to setting up 301s. You’ll want to access your server’s configuration file or utilize a plugin or module, depending on the platform you’re on. The syntax is usually straightforward, though you should always test carefully in a staging environment before pushing changes live.

With 308 redirects being HTTP/1.1 compliant and supported by modern browsers, the question isn’t about compatibility, it’s about the right tool for the job. If you’re managing a site migration and preserving the request method isn’t necessary for your URLs, then the 301 might be your pick. But if you’re working with forms, APIs, or any other scenario where data submission methods must be retained, 308 redirects are your allies.

Factors to consider when choosing between 301 and 308 redirects

When it’s time to select the appropriate redirect for your site migration, a few key factors come into play. 301 redirects have been the go-to for preserving SEO authority during a website’s relocation. However, the introduction of 308 redirects offers a nuanced approach, specifically when the preservation of the HTTP method is crucial.

Search Engine Handling is vital to understand. Although 308 redirects fulfill a similar purpose as 301s by signaling a permanent move, they’re not as widely recognized by all search engines. I always ensure to verify compatibility with search engine guidelines to prevent any unexpected indexing issues.

Consider the technical requirements of your site. If you’re migrating API endpoints or forms where maintaining the POST request is necessary, you can’t overlook the utility of 308 redirects. This is especially pertinent if you’re dealing with applications that need to ensure data is submitted via the correct method post-migration.

Consider user experience. Seamless redirection that maintains user expectations is paramount. If users are submitting information, a 308 redirect ensures the process continues without hiccups. For general page-to-page redirection, a 301 is typically sufficient and avoids confusion or error messages that might arise from method inconsistencies.

Future-proofing is another aspect I focus on. Adhering to the latest HTTP standards is a step towards longer-term compatibility. While 301s are currently more ubiquitous, 308s are gaining ground as developers and website architects recognize their benefits.

In terms of implementation, both 301 and 308 redirects are set up in a similar fashion. Adjusting .htaccess or nginx configuration files, or using plugins for content management systems like WordPress, are common methods to put these redirects into effect.

Always test your redirects thoroughly. Whether you opt for a 301 or 308, ensuring they work as intended across various devices and browsers is crucial for maintaining a professional online presence and a strong SEO profile.


Choosing the right redirect—301 or 308—is crucial for site migrations. I’ve seen firsthand the impact of each on SEO and user experience. Remember, 301s are your go-to for most situations, seamlessly transferring SEO value and preventing content duplication. But when it comes to maintaining specific data submission methods, 308s step up to the plate. They’re indispensable for APIs and forms where the request method must stay intact. Always weigh your technical needs and test meticulously. By doing so, you’ll ensure your site migration is as smooth and SEO-friendly as possible.

Leave a Reply