Is your HTTPS migration failing in Search Console?

Why doesn’t Search Console automatically track your HTTPS migration?

Search Console treats HTTP and HTTPS as two distinct properties. This logic arises from Google's technical architecture: each protocol constitutes a different URL in the eyes of the search engine.

When you migrate to HTTPS without adding the new property in Search Console, you lose visibility on post-migration data. Traffic is indeed reaching your site, but impressions, clicks, and rankings no longer appear in your dashboard. You end up with a total blind spot regarding your organic performance.

What errors actually block crawling and indexing?

Incorrect 301 redirects are the first point of friction. Common issues: redirect chains, pages that redirect to the homepage instead of their HTTPS counterpart, or worse, temporary 302 redirects instead of permanent 301s.

The second trap concerns misconfigured canonical tags. If your canonicals still point to HTTP URLs after the migration, you're sending a conflicting signal to Google: asking it to index the old version while you've redirected to the new one.

How long does it take for Google to fully switch to HTTPS?

The migration duration depends on the crawl frequency of your site and its size. For an average site, expect 2 to 4 weeks. For a large site with millions of pages, it can take several months.

Google keeps pace with its crawl budget allocated to your domain. If you have sections that are crawled infrequently, they will migrate last. That's why verification in Search Console becomes critical: it allows you to track the actual progress of the switch in the index.

• Add the HTTPS property in Search Console right from the start of the migration, not later.
• Ensure that all your 301 redirects point to the correct HTTPS URLs, page by page.
• Audit your canonical tags: they must all point to the HTTPS versions.
• Monitor both properties (HTTP and HTTPS) for at least one month to detect anomalies.
• Use the coverage report to identify pages that remain stuck on HTTP.

Is this recommendation consistent with field observations?

Absolutely. I have witnessed dozens of failed HTTPS migrations for exactly these reasons. The client doesn’t configure the HTTPS property in Search Console, sees their traffic drop in the tool, panics, and thinks the migration has broken their SEO. In reality, the actual traffic hasn’t changed — it’s just that the data isn’t being reported anymore.

What’s worse is when both properties coexist in the index for weeks. Google crawls both HTTP and HTTPS, dilutes the crawl budget between the two, and some pages take forever to switch. The result is temporary duplicate content issues that Google eventually resolves, but not before your SEO has felt the strain.

What nuances should be added to this statement?

Mueller doesn’t mention the XML sitemap file, which must be updated with the HTTPS URLs. If your sitemap continues to submit HTTP URLs, you're slowing down the discovery of new URLs by Googlebot. [To verify]: does Google consider a sitemap with HTTP URLs a blocking error or just a weak signal?

Another missing point is internal linking. If your internal links still point to HTTP after the migration, you're forcing the bot to follow redirects at every click. This unnecessarily consumes crawl budget and slows down the migration. Cleaning up internal links post-migration is often neglected, even though it is a major acceleration factor.

In what cases does this migration pose specific problems?

Sites with multiple subdomains or complex architectures (multi-language e-commerce, UGC platforms) are particularly vulnerable. Each subdomain must be added as a distinct property in Search Console. If you forget one, you lose visibility on part of your traffic.

Sites with mixed content — HTTP resources loaded on HTTPS pages — will encounter security errors in the browser. Google may continue to crawl, but the user experience suffers, leading to an increased bounce rate, and thereby indirectly impacting SEO. This isn’t exactly a migration error, but it is a symptom of a rushed migration.

What practical steps should you take before and during the migration?

Before launching anything, configure the HTTPS property in Search Console. Create a separate property, verify it using the DNS method or the Google Analytics tag if you already have it. Never assume that Google will ‘figure it out’ on its own.

During the migration, test your 301 redirects in bulk. Use a crawler (Screaming Frog, Oncrawl, Botify) to ensure that every HTTP URL correctly redirects to its HTTPS equivalent, without any redirect chains. A redirect from HTTP to HTTPS to HTTPS with www is a waste of SEO juice and crawl budget.

What mistakes should you absolutely avoid after the switch?

Never let your canonical tags point to HTTP after the migration. Conduct a complete audit with a crawler to find residual canonicals. If Google sees a canonical HTTP on an HTTPS page, it may not index the HTTPS version, or it may do so with a significant delay.

Another classic trap is forgetting to update the XML sitemap. Submit the new HTTPS sitemap in Search Console as soon as redirects are in place. Remove the old HTTP sitemap, or at the very least, mark it as obsolete to avoid polluting the crawl.

How can you check if the migration is truly complete?

Monitor the index coverage report in Search Console (HTTPS property). You should see the number of indexed pages steadily increase on the HTTPS side, while decreasing on the HTTP side. When the curves cross and HTTP drops to zero, you're good.

Also check the server logs to confirm that Googlebot is mostly crawling HTTPS URLs. If you still see massive hits on HTTP several weeks after the migration, there’s likely a configuration issue or internal links keeping the old protocol alive.

• Add the HTTPS property in Search Console before the big day.
• Audit all 301 redirects to avoid chains and 404 errors.
• Check that 100% of the canonical tags point to HTTPS.
• Update the XML sitemap with HTTPS URLs and submit it.
• Clean up internal linking to eliminate residual HTTP links.
• Monitor both Search Console properties in parallel for 4 to 6 weeks.