How to spot redirect issues using Webmaster data | Lillian Purge

How to spot redirect issues using Webmaster data

I want to start with something I have learned the hard way over many years of SEO audits. Redirect issues almost never announce themselves loudly. They do not usually crash a site or throw obvious errors. Instead they quietly drain visibility over time. Rankings soften. Traffic dips slightly. Pages that used to perform well no longer do. And because nothing looks obviously broken these issues can sit undetected for months.

In my opinion redirect problems are one of the most underestimated technical SEO risks, especially after site changes, redesigns migrations or platform updates. The good news is that Google gives you the tools to spot these problems early. What many people still call Google Webmaster Tools, now known as Google Search Console, is one of the best places to find redirect issues if you know what you are looking for.

This article explains how to spot redirect issues using Webmaster data in a practical real-world way. Not theory. Not checklists for developers. But how I actually investigate redirect problems using Search Console data, what patterns matter and how to interpret them without jumping to the wrong conclusions.

Why redirect issues matter more than most people think

Redirects tell Google how your site has changed.

They explain which pages have moved, which pages have replaced others and which URLs should now be considered the main versions. When redirects are implemented incorrectly Google becomes uncertain. Uncertainty leads to caution. Caution leads to reduced visibility.

From experience redirect problems often show up as:

• Gradual traffic decline rather than sudden drops

• Old pages still appearing in search results

• New pages failing to rank as expected

• Indexing reports that look messy or inconsistent

Redirect issues are not just technical. They affect trust flow authority transfer and how Google understands your site structure.

Why Search Console is the best starting point

Search Console shows you how Google actually experiences your site.

Unlike crawling tools which simulate a bot Search Console reports what Google has crawled indexed and classified. That makes it invaluable for diagnosing redirect issues that affect real search performance.

From experience many redirect problems are invisible in browser testing but obvious in Search Console once you know where to look.

Making sure you are looking at the right property

Before you analyse anything confirm that your Search Console setup is correct.

Ideally you should be using a domain property rather than a URL prefix property. A domain property shows all versions of your site including http https www non www and subdomains.

If you only have a URL prefix property you may be missing redirect behaviour happening across versions.

From experience analysing redirect issues without full domain coverage leads to false conclusions.

The Pages report is where most redirect clues live

In modern Search Console the Pages report is the primary place to investigate redirects.

This report categorises URLs into:

• Indexed

• Not indexed

• Pages with specific reasons for exclusion

Redirect related issues usually appear under Not indexed.

Do not panic when you see large numbers here. The key is understanding which categories are normal and which indicate problems.

Understanding “Page with redirect” status

One of the most common redirect related statuses is “Page with redirect”.

This means Google tried to index a URL but found it redirects elsewhere.

In isolation this is not a problem. Redirected URLs are expected to appear here.

The question you should ask is why Google is still encountering these URLs.

From experience large numbers of “Page with redirect” entries often indicate:

• Old URLs still linked internally

• Sitemaps containing redirected URLs

• External links pointing to outdated pages

• Inconsistent internal linking

Redirects work best when they are a temporary bridge not a permanent crutch.

When “Page with redirect” becomes a red flag

This status becomes concerning when:

• The same URLs appear months after a migration

• High value pages show up here unexpectedly

• The redirected URLs still receive impressions in the Performance report

From experience this usually means Google has not fully transferred authority to the destination pages or is confused about canonical relationships.

Checking redirect destinations indirectly

Search Console does not always show you the destination URL directly.

However you can infer redirect destinations by:

• Clicking the example URL

• Inspecting it with the URL Inspection tool

• Looking at the “Indexing” and “Page indexing” details

The URL Inspection tool often shows the final indexed URL.

From experience this is where you confirm whether redirects point where you expect them to.

Using URL Inspection to diagnose redirect chains

Redirect chains are a common hidden problem.

This is when:

• URL A redirects to URL B

• URL B redirects to URL C

• Sometimes URL C redirects again

Search Console will often classify these URLs as “Page with redirect” but will not explicitly warn you about the chain length.

Using URL Inspection on each step reveals how many hops exist.

From experience redirect chains slow crawling reduce authority transfer and increase the chance of indexing issues.

Spotting redirected URLs in your sitemap

One of the first places I check is the sitemap report.

Your sitemap should never contain redirected URLs.

In Search Console go to:

• Sitemaps

• Click the submitted sitemap

• Look for errors or warnings

If redirected URLs are listed here Google is being told to crawl pages that no longer exist.

From experience this is one of the most common causes of lingering redirect issues long after a site change.

Performance report reveals redirect pain points

The Performance report is an underused tool for redirect diagnosis.

Set the report to:

• Pages tab

• Compare two time periods

Look for pages that:

• Used to receive impressions but now do not

• Have impressions but no clicks

• Appear under old URLs unexpectedly

From experience these patterns often indicate redirects that have not transferred visibility properly.

Identifying old URLs still getting impressions

If an old URL still appears in the Performance report months after a redirect that is a signal.

It means Google still associates search queries with that URL rather than the new one.

This can happen when:

• Redirects were added late

• Internal links still point to old URLs

• Canonical signals conflict with redirects

From experience this is a clear sign that Google has not fully processed the change.

Comparing page level performance before and after changes

One of the most effective techniques is comparison.

Export page level data from Search Console before a known site change and compare it with current data.

Look for:

• Pages that lost impressions but whose replacements did not gain them

• Drops isolated to certain directories or page types

From experience these patterns almost always map back to redirect or canonical problems.

Redirect issues often hide inside “Alternate page with proper canonical”

This status often causes confusion.

“Alternate page with proper canonical” means Google found a canonical pointing elsewhere and respected it.

This is not automatically bad.

However if a page is both redirected and canonically pointing somewhere else inconsistencies arise.

From experience conflicting signals slow down trust transfer.

Canonical and redirect conflicts are common

A classic mistake is:

• Page A redirects to Page B

• Page A also has a canonical pointing to Page C

Google must decide which signal to trust.

From experience this confusion delays consolidation and weakens rankings.

Search Console often shows these pages bouncing between different statuses.

Soft 404s caused by bad redirects

Soft 404s occur when a page technically exists but does not satisfy user intent.

Redirecting many old pages to a generic page such as the homepage can cause this.

Search Console may classify these as:

• Soft 404

• Crawled but not indexed

From experience mass homepage redirects after a migration are a major SEO risk.

Redirecting to irrelevant destinations hurts trust

Redirects should be logical.

Redirecting a service page to a category or homepage may seem convenient but it weakens relevance.

Google expects topical continuity.

From experience irrelevant redirects reduce authority transfer and can cause pages to drop entirely.

How redirect loops appear in Search Console

Redirect loops happen when:

• URL A redirects to URL B

• URL B redirects back to URL A

Search Console may show:

• Redirect error

• Page with redirect with crawl issues

These are serious problems.

From experience redirect loops can block crawling entirely and must be fixed quickly.

Crawl stats reveal excessive redirect crawling

The Crawl stats report is another useful tool.

High numbers of redirected responses indicate inefficiency.

If a large portion of Google’s crawl budget is spent following redirects less time is spent on valuable pages.

From experience excessive redirects correlate with slower indexing and weaker performance.

Redirect issues after CMS updates

CMS updates often change URL behaviour silently.

Trailing slashes index.php parameters and pagination can all introduce new redirects.

Search Console often shows new redirect patterns shortly after updates.

From experience monitoring after updates prevents long-term damage.

Spotting mixed http and https redirects

Although most sites use https issues still occur.

Search Console may show http URLs as “Page with redirect”.

This is normal initially but should decline over time.

If http URLs persist months later it often means:

• Internal links still use http

• External references dominate

• Canonical issues exist

From experience cleaning up internal links speeds consolidation.

Subdomain redirects often go unnoticed

Sites that use blog subdomains or shop subdomains often have complex redirect behaviour.

Search Console domain properties reveal this.

From experience subdomain redirects are frequently misconfigured leading to lost authority.

International sites and hreflang redirects

For sites using hreflang incorrect redirects break language targeting.

Search Console may show:

• Hreflang errors

• Alternate pages not indexed

From experience redirecting between language versions without preserving hreflang signals causes confusion.

When redirects delay indexing of new pages

Sometimes new pages fail to index because Google is still prioritising old URLs.

Search Console shows new pages as “Discovered but not indexed” or “Crawled but not indexed”.

From experience lingering redirects often contribute to this by diluting crawl focus.

Redirect issues after site restructuring

Large restructures are high risk moments.

Search Console often lights up with:

• Page with redirect

• Soft 404

• Alternate page with canonical

From experience a careful review of these reports in the weeks after a restructure is essential.

Why redirect problems are rarely one single error

Redirect issues usually come in clusters.

One mistake creates knock-on effects.

From experience solving redirect problems requires looking at patterns not individual URLs.

Avoiding panic when you see many redirect entries

It is normal to see redirect entries.

Do not attempt to eliminate all of them.

Focus on:

• High value pages

• Pages still receiving impressions

• Pages in your sitemap

From experience prioritisation matters more than perfection.

Using Search Console exports effectively

Exporting data allows pattern recognition.

Sorting by impressions reveals which redirected URLs still matter.

Sorting by status reveals which issues dominate.

From experience spreadsheet analysis often reveals problems hidden in the interface.

Redirect issues versus indexing delays

Not every delay is a redirect problem.

Search Console helps you distinguish between:

• Crawl issues

• Indexing delays

• Redirect confusion

From experience diagnosing correctly prevents unnecessary changes.

Redirect problems often explain slow recovery

After a site change recovery may take longer than expected.

Redirect issues are often the reason.

Search Console shows this if you look at the right reports over time.

From experience patience combined with targeted fixes works better than constant tweaking.

How long redirects should stay in place

Redirects should remain long term.

Removing them too early breaks the authority bridge.

From experience redirects should stay indefinitely or at least for several years.

Search Console will continue to encounter old URLs through external links.

Avoiding redirect chains when updating content

When updating pages always redirect the original URL directly to the final version.

Do not stack redirects.

Search Console does not warn you explicitly but the performance impact is real.

Why testing redirects in a browser is not enough

Browser tests show human experience.

Search Console shows Google experience.

A redirect that works in a browser may still cause SEO issues due to headers canonical tags or inconsistent signals.

From experience Search Console data is the definitive check.

Redirect issues and AI search visibility

AI driven search relies on clear canonical signals.

Confused redirect structures increase the risk of misrepresentation.

From experience clean redirect architecture improves AI summary accuracy.

Monitoring redirect issues as an ongoing practice

Redirect issues can appear at any time.

From experience adding Search Console checks to regular SEO reviews prevents long-term damage.

Common redirect mistakes I still see

• Redirecting everything to the homepage

• Forgetting to update sitemaps

• Leaving redirect chains after multiple redesigns

• Conflicting canonical tags

• Removing redirects too early

Each one quietly reduces visibility.

Knowing when to involve technical help

Some redirect issues require developer input.

Loops server level redirects and CMS rules often need deeper access.

From experience involving help early saves time and rankings.

Final reflections from experience

I think redirect issues are one of the most misunderstood SEO problems because they are silent.

Search Console is your early warning system.

When you know where to look it shows you exactly how Google is interpreting your site changes.

From experience businesses that learn to read redirect signals in Webmaster data protect their visibility far better than those relying on guesswork.

If there is one takeaway it is this. Redirects are not just technical plumbing. They are trust signals. Use Search Console to listen carefully to how Google responds to them and your SEO decisions become far more confident and effective.