Should you really maintain redirects for URLs that still generate traffic?

Why does Google emphasize redirects for URLs with residual traffic?

The reasoning is simple: each URL that receives direct visits or clicks from SERPs sends a signal to Google about the relevance of that page. When you remove a page without a redirect, these signals vanish into a 404 abyss.

The search engine interprets a 404 as a dead end. If the URL still generates organic traffic, it's because it maintains an active ranking in the index. Without a 301 redirect, Google eventually deindexes that URL, and you permanently lose that entry point.

What about backlinks pointing to outdated URLs?

Backlinks are votes of confidence. An outdated URL that retains incoming links loses all its link juice if it returns a 404. Worse, you waste an SEO asset that may have taken years to build.

External links don't update automatically when you restructure your site. If you've migrated a product page to a new structure, the old links remain. Without a redirect, this historic PageRank evaporates.

What level of traffic justifies maintaining a redirect?

Google remains vague on this point. The phrasing “if the traffic or links are significant” is deliberately ambiguous. In practice, even a few monthly visits can justify a redirect if the target URL is strategic.

The criterion isn't limited to traffic volume. A backlink from an authoritative domain is worth more than 100 visits from low-quality sources. The analysis should consider traffic volume, link quality, and thematic relevance of the destination URL.

• Permanent 301 redirect: mandatory for any URL with organic traffic or active backlinks.
• Link profile analysis: use Search Console and external tools to identify outdated URLs with residual link juice.
• Continuous monitoring: regularly check for 404s that still generate visits or crawl attempts.
• Semantic consolidation: redirect to the most thematically relevant page, not necessarily to the homepage.
• Redirect maintenance: never remove a 301 redirect without ensuring it no longer receives any signals.

Is this recommendation in line with what we observe in the field?

Yes, and it's one of the few cases where Google doesn't muddy the waters. Tests show that a 301 redirect transfers between 90% and 99% of PageRank depending on configurations. An URL with active backlinks that returns a 404 loses that equity permanently.

The problem is that many sites neglect low volume redirects. They consider that 10 visits per month do not justify the effort. Wrong: these visits could come from a niche query with a high conversion rate, or from a backlink from an influential industry media.

What nuances should we add to this directive?

Google doesn't specify how long to maintain a redirect. On sites with thousands of redirects, this can cause server performance issues. The rule of thumb: maintain for at least 12 months, ideally indefinitely for URLs with external backlinks.

Another point: the phrasing “reinstate redirects if traffic or links are significant” suggests that some sites remove redirects to clean up their infrastructure. This is a high-risk practice. [To be verified]: Google has never given a numerical threshold to qualify traffic or a backlink as “significant.” This gray area leaves room for interpretation.

In what cases can we afford not to redirect?

If an outdated URL has not generated any traffic for 6 months and has no identifiable external backlinks, you can leave it as a 404. But beware: tools do not detect all links. A backlink from a niche forum or a PDF hosted elsewhere may slip under the radar.

Another exception: temporary URLs (promotions, past events) that were never intended to persist. Even in this case, if they have generated traffic, a redirect to a similar contextual page is still preferable to a sudden 404.