Every website changes over time. You redesign pages, move content to new URLs, swap out landing pages between campaigns, or migrate to a new domain entirely. When that happens, old URLs don't just update themselves. They break, and anyone who clicks one hits a dead end while search engines lose track of your content.
That's not a rare edge case. Pew Research Center found that 38% of webpages that existed in 2013 were gone by October 2023, and a quarter of all pages it tracked over that decade had gone dark by the time researchers checked. A url redirect is how you keep your own links from becoming part of that statistic.
A url redirect automatically sends visitors and search engines from an old address to the correct new one, so traffic keeps flowing and your SEO stays intact.
This guide explains url redirects in practical terms: how they work, which types to use, and how to build a redirect strategy that holds up as your site and campaigns evolve.
Key takeaways
- A URL redirect automatically forwards visitors and search engines from an old web address to a new one, keeping links functional and SEO signals intact.
- 301 redirects (permanent) pass ranking authority to the new URL. 302 and 307 redirects (temporary) generally don't, and search engines keep indexing the original address.
- Nearly 40% of webpages from 2013 were inaccessible by 2023, according to Pew Research Center, which is why redirect strategy matters, especially for any site that's been live more than a few years.
- Google recommends keeping a 301 redirect live for at least a year to make sure it's been fully processed and passed along.
- Link management platforms like Rebrandly let you update redirect destinations directly, without touching server code or waiting on a developer.
What is a URL redirect?
A url redirect is an automated instruction that sends browsers and search engines from an old web address to a new one. Think of it as a signpost: it tells anyone (or anything) looking for the old page exactly where the content lives now.
From the visitor’s perspective, redirects are invisible. You click a link and land on a page, while the redirect happens in the background, usually in a fraction of a second, with no visible interruption.
How redirects work
When a browser encounters a redirect, the website's server responds with instructions pointing to a new URL, and the browser automatically requests that new location.
You'll sometimes see "redirect" and "forward" used interchangeably, but they're not quite the same thing:
- Redirects send you to a new URL and update the address shown in the browser.
- Forwarding typically keeps the original URL visible and is often used at the domain level.
For SEO clarity, analytics accuracy, and user experience, redirects are the better choice.
Types of URL redirects
Different redirect types serve different purposes, depending on whether the change is permanent or temporary.
301 redirects (permanent)
A 301 redirect signals that a URL has permanently moved. Search engines transfer most ranking signals from the old URL to the new one, preserving your visibility and authority. Use 301 redirects for permanent page moves, website restructures, and domain changes. Your SEO equity moves with you.
302 redirects (temporary)
A 302 redirect indicates a temporary move. Search engines keep the original URL indexed, since the change isn't permanent. Use 302 redirects for short-term promotions, temporary landing pages, and maintenance windows. Using a 302 for a permanent change can hurt SEO performance on the redirected page, since ranking signals stay parked on the old URL instead of moving with you.
303 redirects (temporary)
A 303 redirect tells the browser to fetch the new location with a GET request, regardless of the original request method. It's most common after a form submission, since it stops the browser from resubmitting the form if someone refreshes the page.
307 redirects (temporary)
A 307 redirect indicates a temporary move while preserving the original HTTP request method. This matters mainly in technical or API-driven environments where the request method affects functionality, such as login pages. For most marketing use cases, the difference between a 302 and a 307 is negligible.
308 redirects (permanent)
A 308 redirect indicates a permanent move while preserving the original HTTP request method, making it the permanent counterpart to a 307. Like 307s, it's mostly relevant in technical or API-driven contexts rather than everyday marketing links.
Meta refresh and JavaScript redirects
Meta refresh redirects use HTML meta tags and run on the client side. JavaScript redirects rely on browser scripts. Both are generally discouraged because they create poor user experiences, send weak SEO signals, and are unreliable.
Which type of redirect should I use?
Here's how the main redirect types compare at a glance and examples of when to use each:
When and why you need URL redirects
URL redirects solve real problems across both website management and marketing. Here's what happens when you implement them correctly:
- Preserve SEO during site changes. When you restructure your website, change your domain, or consolidate pages, redirects signal the move to search engines and transfer ranking authority from old URLs to new ones, which matters most during migrations, rebrands, or structural updates.
- Protect traffic from broken links. Broken links erode trust and kill traffic. Redirects recover visitors from outdated URLs and send them to relevant content instead of 404 errors.
- Reduce duplicate content confusion. When the same content is accessible at multiple URLs, search engines struggle to rank it. Using 301 redirects consolidates variations into one authoritative version, strengthening your SEO signals.
- Keep marketing campaigns flexible. Campaign requirements change constantly, so you can update landing page destinations, refresh offers, or test new messaging without recreating links. That flexibility matters for A/B testing, seasonal updates, and real-time optimization.
- Simplify URL management. Typos, capitalization inconsistencies, trailing slashes, and formatting variations confuse both users and search engines. Redirects automatically normalize these variations to the correct URL.
- Fix URL mistakes without losing traffic. When you discover errors in published links, like wrong landing pages or expired offers, a url redirect lets you fix them instantly without reissuing new links.
How to set up URL redirects
You can implement a url redirect in several ways. The approach you choose affects SEO performance, site speed, and long-term sustainability.
Server-level redirects (.htaccess, nginx)
Server-level redirects are configured directly on your web server using files like .htaccess (Apache) or Nginx configuration rules. They're fast, reliable, and preferred by search engines, which makes them a good fit for permanent structural changes.
The tradeoff: they require technical access and careful implementation. Poorly managed rules can create redirect chains (where one URL redirects to another, which redirects to another, and so on) or conflicts.
Here's what a single 301 redirect looks like in an .htaccess file:
Redirect 301 /old-page https://www.example.com/new-page
Best practices:
- Keep redirects direct and avoid unnecessary hops.
- Maintain documentation of every rule to prevent conflicts over time.
- Use a 301 for permanent changes and a 302 for temporary ones.
CMS-based redirects (WordPress plugins, etc.)
Content management systems offer redirect plugins or built-in tools, which makes it easier for non-technical teams to manage redirects. The downside is that at scale, CMS-based redirects can introduce performance issues and increase the risk of redirect chains.
Best practices:
- Regularly audit and remove outdated redirect rules.
- Update internal links to point directly to final URLs instead of relying on redirects.
- Monitor performance to make sure redirects aren't slowing page loads.
DNS-level redirects
DNS redirects forward traffic at the domain level rather than the page level. They work best for full domain changes, like rebrands or platform migrations, and aren't ideal for granular use cases like campaign landing pages.
Best practices:
- Use DNS redirects only for broad, domain-wide changes.
- Pair them with page-level redirects where necessary to preserve SEO signals.
Link management platforms
Link management tools like Rebrandly handle redirects at the link level, giving you direct control without developer dependency.
Because these redirects operate outside your website infrastructure, you can update destinations quickly across campaigns, QR codes, and anywhere else you can't easily swap out the link itself (printed on signage, mailers, emails you’ve already sent, etc.).
Three Rivers Park District put this to work at scale using Rebrandly. As Amanda Huber, the district's GIS administrator, put it: "Being able to update destination URLs on the fly while keeping the URL the same is essential, especially with signage in the field."
When a vendor server migration unexpectedly changed hundreds of destination URLs, the team updated every affected redirect through Rebrandly's API without changing the short links themselves, saving more than 300 physical park signs from replacement.
Best practices:
- Use a single branded link as your source of truth across channels.
- Update destinations directly instead of stacking redirects.
- Use built-in analytics to monitor performance early.
URL redirects and SEO
Redirects directly affect how search engines crawl, index, and rank your content. Done correctly, they preserve authority and visibility, but done poorly, they can erase years of optimization work.
Permanent vs. temporary redirects. 301 redirects pass ranking signals to the new URL. 302 redirects generally don't. That difference matters most during migrations or restructures, where preserving authority is critical.
Chains dilute everything. Redirect chains slow page loads and divide SEO signals across multiple hops. A direct path is always better.
Editable links simplify the problem. Branded short links resolve in a single step, avoiding layered redirect logic entirely. That approach works especially well for campaigns and long-lived marketing assets.
How marketing teams use URL redirects
For marketing teams, url redirects are less about site infrastructure and more about campaign flexibility.
Marketing campaigns change constantly. Landing pages rotate with A/B tests, offers expire, and messaging evolves, but the links you've already shared in ads, emails, and social posts stay live. A url redirect lets you update where those links point without republishing them.
A common example: you run a webinar and share the registration link everywhere, in email, on social, in ads. Once the event ends, you don't want that link to dead-end, so you just update the redirect destination to the on-demand recording, and every link you've already published starts sending people to the right place automatically.
Branded short links take this a step further. Each one functions as a clean, single-step redirect that you control directly, with no server access or developer support needed. When campaigns shift, editable destinations let you refresh offers, fix mistakes, or adapt to seasonal changes without reissuing links or losing attribution data.
URL redirect-based routing also enables geographic and device-based experiences, automatically sending people to the most relevant destination. A single branded short link can live across email, SMS, social, ads, and QR codes, and you can update what's behind it anytime.
Common URL redirect mistakes to avoid
Most redirect problems come down to a handful of repeat offenders. Watch for these:
- Redirect chains. Layers of redirects slow load times and weaken SEO signals. Each hop introduces latency and divides authority.
- Using temporary redirects for permanent moves. A 302 redirect signals "come back later," which prevents search engines from transferring authority correctly. Use a 301 for permanent changes.
- Not documenting your strategy. Undocumented redirects lead to conflicts, confusion, and duplicate rules. Keep records.
- Failing to test. Always verify that your redirects work before you publish them.
Take control of your URL redirects
URL redirects are core infrastructure, for your website and for every campaign link you publish. Start by auditing your existing links: identify where URLs have changed or will change, and pick a redirect strategy that holds up today and stays flexible tomorrow.
If you want to manage redirects without relying on developers or server access, Rebrandly, a link intelligence platform, gives you direct control over your links. Create branded short links, update destinations anytime, and track performance across every channel.
Start your free trial and see how branded link management makes URL redirects easier to manage at scale.
