If you use Blogger or Blogspot, you may have noticed that some URLs end with ?m=1, particularly when pages are opened on mobile devices.
For example:
https://example.com/2026/09/sample-post.htmlmay also appear as:
https://example.com/2026/09/sample-post.html?m=1This often makes Blogger users worry about duplicate content, indexing problems and SEO. However, ?m=1 is generally part of Blogger's mobile URL handling and normally does not need to be removed.
What matters more is whether Google understands the clean URL as the canonical version of your page.
What Does ?m=1 Mean in Blogger?
The ?m=1 query parameter is associated with Blogger's mobile view or mobile URL handling.
The clean URL:
https://example.com/post.htmland the mobile variation:
https://example.com/post.html?m=1normally represent the same main content.
You may also occasionally see ?m=0, which can be associated with requesting the desktop version. Neither parameter should normally be treated as your preferred permanent post URL.
Does ?m=1 Affect Blogger SEO?
?m=1 is not automatically an SEO problem. Search engines regularly discover multiple URLs that lead to identical or very similar content.
Google uses canonicalization to determine which URL should represent that content in search.
For Blogger, your preferred URL should normally be:
https://example.com/post.htmlrather than:
https://example.com/post.html?m=1If your theme outputs the correct canonical URL, Google can understand that the clean URL is the main version.
For broader optimization, see our Blogger SEO settings guide.
Does ?m=1 Cause Duplicate Content?
The normal URL and its ?m=1 version can contain the same content, but this does not automatically mean your site has a harmful duplicate-content problem.
The important question is whether your clean URL is being treated as canonical.
Your goal should therefore be:
Make sure Google understands the preferred URL, rather than trying to make every ?m=1 URL disappear.
Should You Remove ?m=1 From Blogger URLs?
For most Blogger websites, no.
You may find JavaScript tutorials that detect ?m=1 and remove or redirect it. These scripts can make the browser address look cleaner, but they do not necessarily change Blogger's underlying mobile URL behavior.
Additional URL manipulation can also create unnecessary redirects, redirect loops or conflicting signals.
Similarly, you should not normally block ?m=1 URLs in robots.txt merely because you do not want them indexed. Robots.txt controls crawling; it is not a replacement for proper canonicalization.
What Does "Alternate Page With Proper Canonical Tag" Mean?
Blogger users often discover ?m=1 URLs under Alternate page with proper canonical tag in Google Search Console.
For example, Google may discover:
https://example.com/post.html?m=1while recognizing:
https://example.com/post.htmlas the canonical page.
If that is what Search Console reports, Google has generally understood that the ?m=1 URL is an alternate version. It does not need to be indexed separately.
What About ?m=1 Redirect Errors in Search Console?
Blogger's mobile URL handling can also result in Redirect error reports for some parameterized URLs.
Before changing anything, check whether:
- Your clean post URL opens normally.
- Your important posts are indexed.
- The canonical tag points to the clean URL.
- Your theme does not contain custom ?m=1 redirect scripts.
If your canonical posts are accessible and indexed correctly, an excluded mobile variation does not necessarily require a fix.
How to Check Your Blogger Canonical URL
Open one of your Blogger posts and view the page source. Search for:
rel="canonical"You should normally find a canonical URL similar to:
<link rel="canonical" href="https://example.com/2026/09/post.html">The URL should normally be the clean version without ?m=1.
You can also inspect the page in Google Search Console and compare the User-declared canonical with the Google-selected canonical.
Best SEO Practice for Blogger ?m=1 URLs
- Keep the clean post URL as the canonical URL.
- Use clean URLs in your internal links.
- Submit canonical URLs through your Blogger sitemap.
- Inspect important pages in Google Search Console.
- Avoid unnecessary JavaScript redirects.
- Do not block ?m=1 solely because it appears in Search Console.
A custom domain does not remove Blogger's underlying mobile URL behavior. If you are setting up your own domain, see our custom domain setup guide for Blogger.
Questions About Blogger ?m=1
What does ?m=1 mean in Blogger?
The ?m=1 parameter is associated with Blogger's mobile URL handling. It may appear when Blogger serves or redirects a page for a mobile device.
Is ?m=1 bad for Blogger SEO?
No. The parameter itself is not inherently bad for SEO. The important factor is whether Google correctly recognizes the clean URL as canonical.
Should I remove ?m=1 from Blogger URLs?
Usually, no. If your canonical URL is correct, there is generally no SEO reason to add JavaScript or redirects simply to hide ?m=1.
Does ?m=1 cause duplicate content?
The normal and ?m=1 URLs can display the same content, but correct canonicalization allows Google to identify the preferred version.
Should I request indexing for ?m=1 URLs?
No. Normally submit or request indexing for the clean canonical URL rather than its ?m=1 variation.
Why does Search Console show ?m=1 URLs?
Google can discover alternate Blogger URLs while crawling. Seeing ?m=1 under alternate or redirect reports does not automatically mean your canonical posts have an indexing problem.
Final Verdict
?m=1 is usually a normal Blogger URL behavior to understand, not an SEO error that must be removed.
If your clean URL is canonical, your important pages are indexable and Google recognizes the correct version, leave Blogger's mobile URL handling alone and focus on content, internal linking, page speed and overall technical SEO.