Can blocking a redirect page with robots.txt really stop PageRank from passing through?

Why would you want to block PageRank transmission through a link?

There's no shortage of scenarios. You sometimes have mandatory pages from a legal or functional perspective — dynamically generated legal notices, multiple login pages, geo-targeted redirects — that create unnecessary PageRank leaks.

Rather than let these URLs consume crawl budget and dilute your internal link budget, some practitioners have gotten in the habit of using blocked intermediate pages to cut off transmission. Google just confirmed that this practice actually works.

How exactly does this blocking technique work in practice?

The principle is straightforward: instead of pointing a link directly to the final destination, you route it through an intermediate redirect page. This intermediate page is then blocked in your robots.txt.

Result: Google follows the link, hits the intermediate page, sees it's blocked from crawling, and stops there. The redirect technically exists, but the bot doesn't follow it — so no signals pass through.

Does this method completely replace nofollow?

No, and it's crucial to understand the distinction. Nofollow (or ugc/sponsored) remains a signal to Google about the nature of the link. It's interpreted as a « suggestion » — Google can choose to follow it or not for discovery, but won't transmit PageRank.

The robots.txt technique is more radical: it prevents crawling altogether. Google doesn't even discover the final destination via that path. The two approaches have different use cases.

• Redirect via robots.txt-blocked page = complete signal transmission blocking
• Technique officially validated by John Mueller for preventing PageRank transmission
• Different from nofollow which remains a suggestion interpretable by Google
• Useful for isolating functional sections that consume budget without SEO value

Does this statement align with real-world observations?

Yes, unequivocally. SEOs have been testing this technique for years — particularly on massive e-commerce platforms with thousands of navigation facets or multi-parameter filter systems. Real-world results clearly show that a page blocked from crawling cuts the transmission chain.

What changes here is that Google explicitly confirms it. No more gray areas: you can now use this method with full knowledge and without fear of a manual penalty for « manipulation attempts ».

What risks does this approach present in practice?

The main danger is misconfiguration. If you accidentally block a page that should be transmitting PageRank — for example a legitimate 301 redirect after a redesign — you cut off a valuable signal flow. Let's be honest: on a large site, this kind of mistake happens more often than people admit.

Another point: this technique can seriously complicate your internal link architecture. Multiplying blocked intermediate pages makes tracking PageRank flow much more opaque. You risk losing visibility into what transits where. [To verify]: Google has given no indication of any threshold beyond which this practice could be interpreted as abusive.

In which cases is this method truly relevant?

Honestly? Real use cases are fairly limited. It becomes relevant in very complex architectures — marketplaces with thousands of vendors, multi-country sites with automatic geo-targeted redirects, SaaS platforms with dozens of functional entry points.

For a standard site — even a mid-sized e-commerce — you'll probably get better results by simply optimizing your internal linking and using nofollow where appropriate. No need to bring out heavy artillery if a Swiss Army knife will do the job.

How do you implement this technique without shooting yourself in the foot?

First step: precisely identify the pages you want to isolate. No gut-feel decisions — pull out your crawl analysis tools (Screaming Frog, OnCrawl, Botify depending on your budget) and pinpoint sections consuming budget without bringing SEO value.

Next, create your redirect intermediate pages. Technically, these are simple URLs that immediately redirect (301 or 302) to the final destination. Ideally group them in a dedicated directory — /redirect/ for example — to simplify robots.txt management.

Add the Disallow directive in your robots.txt to block that directory. Absolutely test with Google Search Console (URL inspection tool) to verify the blocking is properly applied. And most importantly: document your configuration. In six months, you'll have forgotten why these URLs are blocked.

What mistakes must you absolutely avoid?

NEVER block a redirect page that's part of a site migration or URL redesign. These redirects must imperatively transmit PageRank — blocking them is throwing away all the accumulated link equity.

Also avoid multiplying layers. Some are tempted to create redirect chains — A to B (blocked) to C to D — thinking they « better control » things. Result: an incomprehensible contraption that generates more problems than it solves.

How do you verify the configuration is working correctly?

Use Google Search Console to inspect your intermediate pages. If Google indicates « Blocked by robots.txt file », that's a good sign. Also verify that your final destination pages don't show crawl errors related to broken redirects.

Conduct regular audits — at least quarterly — to ensure no URL accidentally blocked cuts off important PageRank flow. A simple export of your robots.txt file combined with log analysis is enough to spot anomalies.

• Identify sections to isolate through thorough crawl analysis
• Create intermediate pages in a dedicated directory (/redirect/)
• Block that directory via robots.txt with Disallow directive
• Test configuration with Google Search Console
• Never block 301 redirects post-migration
• Document precisely each blocked page and its purpose
• Audit configuration every 3 months minimum