Should you really keep HTTP to HTTPS redirections forever?

Why does Google insist on permanently maintaining redirections?

Google's stance on this issue is unequivocal: once the HTTPS migration is completed, HTTP to HTTPS 301 redirections must become a permanent component of your infrastructure. This recommendation is based on simple logic: even years after a migration, HTTP backlinks continue to exist in the nature of the web.

These links come from sources beyond your control: old articles, directories, user bookmarks, fossilized social shares. If you remove the redirections, every click on these links generates a 404 error. The result? Loss of referral traffic, dilution of PageRank, and negative signals sent to search engines.

What is the actual lifespan of an HTTP backlink?

Field data shows that HTTP backlinks remain active much longer than one might think. Sites that migrated 5, 7, or even 10 years ago still receive traffic via old HTTP URLs. These links can come from evergreen content, databases that are never updated, or archived PDFs.

Removing redirections means voluntarily forfeiting a part of your link profile. Even if the volume of affected traffic seems marginal, the cumulative impact on domain authority and link juice distribution can be significant. Let's be honest: why take that risk when maintaining a redirection costs nothing?

Do permanent redirections impact performance?

A recurring objection: does maintaining thousands of 301 redirections slow down the site? The technical answer is nuanced. A well-configured server-side redirection (Apache, Nginx) or via a CDN adds about 20-50ms of latency. It’s measurable, but rarely critical.

The real problem arises when redirections are poorly implemented: multiple redirection chains, greedy regex rules, or redirections managed in PHP instead of server-level. In these cases, yes, performance impact exists. But the solution is not to remove the redirections - it's to properly optimize them.

• Keep HTTP → HTTPS redirections permanently to preserve backlink equity
• Implement redirections at the server level (not via PHP or JavaScript) to minimize latency
• Avoid redirection chains: each HTTP URL should point directly to its final HTTPS version
• Regularly monitor logs to identify HTTP URLs that are still being accessed and verify that redirections are functioning properly
• Document redirection configuration to prevent a future developer from removing them due to lack of knowledge

Is this recommendation consistent with field observations?

In principle, yes absolutely. Fifteen years of hands-on experience confirm that removing redirections after a migration is a classic mistake that can be costly. The documented cases are numerous: sites that lost 15-30% of their organic traffic in the months following the removal of redirections deemed "obsolete".

The problem is that the impact is not always immediate. Rankings may hold for a few weeks thanks to Google's caching, then gradually degrade. By the time the diagnosis is made, months have passed, and isolating the cause becomes complex. Mueller's recommendation is thus perfectly aligned with observed best practices.

Are there cases where removing redirections can be justified?

Theoretically, if you have absolute certainty that no HTTP links exist anywhere on the web - which is practically impossible to verify - you could technically do without them. But even in this hypothetical scenario, what is the real benefit of removing them?

The only edge case concerns sites with very specific technical architectures where every millisecond counts (high-frequency trading, real-time bidding). But even there, the optimization should focus on the redirection method, not their removal. [To verify]: Google has never documented a threshold beyond which a massive volume of redirections would become problematic for crawling or indexing.

What nuance should be added to this Google directive?

Mueller speaks about HTTP → HTTPS redirections, but the logic extends to all permanent structural redirections. URL redesign, domain migration, content consolidation: as long as the old URL generated traffic and backlinks, the redirection must persist. The term "indefinitely" should be understood as "as long as the site exists".

A crucial nuance: this rule does not apply to temporary 302 redirections or one-off tactical redirections. If you created a redirection to manage a limited-time campaign, it can be removed once it becomes obsolete. But for any URL that has had a lasting public presence, the 301 redirection becomes a permanent commitment.

What should you immediately check on a migrated HTTPS site?

Your first reflex: audit your current redirection rules. Use a tool like Screaming Frog in "list" mode with a sample of HTTP URLs from your old sitemap to verify that they properly redirect in 301 to their HTTPS equivalents. Also, test a few deep URLs, not just the homepage.

Next, check your server logs: how many HTTP requests are still received daily? If you find significant volumes (even at 2-5% of total traffic), it’s proof that these redirections are actively working. Removing them would be a total loss.

How can you optimize these redirections so they don't impact performance?

Configuration should be done at the server level, ideally in the .htaccess (Apache) or Nginx config file. Absolutely avoid redirections via PHP or JavaScript which add latency and may not be correctly followed by bots. A simple, global rule typically suffices: all HTTP redirects to their HTTPS equivalent.

If your site uses a modern CDN (Cloudflare, Fastly, Akamai), set up the redirections at that level. They will be processed at the edge, even before reaching your origin server, minimizing latency. Test the added latency with WebPageTest: it should remain under 50ms in 95% of cases.

What mistakes should be avoided when maintaining these redirections?

The classic mistake: creating redirection chains. If an HTTP URL first redirects to an intermediate version, and then to the final HTTPS version, you double the latency and dilute PageRank. Each redirection should point directly to its final destination in a single hop.

Another common pitfall: defaulting redirections to the homepage. If a specific HTTP URL (example.com/product-page) does not have a dedicated rule and redirects to the HTTPS homepage, you lose link granularity. Each URL should redirect to its exact equivalent in HTTPS.

• Audit all old HTTP URLs with a crawler to verify 301 redirections
• Configure redirections at the server or CDN level, never in application
• Eliminate all redirection chains (HTTP → HTTPS should be done in a single hop)
• Document the configuration in a reference technical file accessible to the dev team
• Monthly monitor logs to identify any potentially active HTTP URLs
• Regularly test a sample of URLs with tools like httpstatus.io or redirect-checker.org