If you’ve been using Blogger for a while, there comes a point when a simple blog URL just isn’t enough. Maybe you want a blog.yoursite.com, a store.yoursite.com, or even a news.yoursite.com. That’s where subdomains come in.
In this guide, I’ll walk you through how to add subdomain in Blogger the right way. Not the rushed way. Not the confusing way. But the way that actually works—and keeps your site stable, SEO-friendly, and AdSense-safe.
I’ve set up subdomains on Blogger multiple times over the years, across different domain providers. I’ll share practical steps, common mistakes, and small details most tutorials skip.
Let’s start from the basics and build up.
What Is a Subdomain?
A subdomain is a child version of your main domain.
Example:
- Main domain:
example.com - Subdomain:
blog.example.com - Another subdomain:
shop.example.com
Each subdomain can function as a separate website, even though it’s connected to the main domain.
In Blogger, a subdomain lets you:
- Run multiple blogs under one domain
- Organize content by topic
- Improve branding and structure
- Keep things clean without buying extra domains
Why Use a Subdomain in Blogger?
Before jumping into the setup, it helps to understand why subdomains are useful.
1. Better Content Organization
You can separate content types:
blog.example.comfor articleshelp.example.comfor tutorialsnews.example.comfor updates
This keeps everything focused and easier to manage.
2. Strong Branding
A subdomain looks professional. Much better than:
example.blogspot.com
It builds trust with readers and advertisers.
3. SEO Flexibility
Subdomains are treated as separate properties by search engines. That can be helpful if:
- You target different keywords
- You want content separation
- You manage multiple niches
SEO isn’t automatic magic, but it gives you options.
4. Easy to Manage in Blogger
Blogger handles subdomains surprisingly well once they’re configured correctly.
Things You Need Before Adding a Subdomain in Blogger
Make sure you have these ready:
- A custom domain (like
example.com) - Access to your domain’s DNS settings
- A Blogger account
- A clear plan for the subdomain name
If your main domain is already connected to Blogger, you’re halfway there.
How Blogger Handles Subdomains (Important to Know)
Blogger does not automatically create subdomains.
You must:
- Create the subdomain in your domain’s DNS
- Point it to Blogger
- Connect it inside Blogger settings
Skipping any step causes errors.
Step-by-Step: How to Add Subdomain in Blogger
Let’s go through the exact process.
Step 1: Decide Your Subdomain Name
Choose something simple and clear.
Good examples:
blog.example.comlearn.example.comsupport.example.com
Avoid:
- Long names
- Numbers
- Hyphens
- Random words
Once chosen, stick to it.
Step 2: Create a New Blog in Blogger
Each subdomain needs its own Blogger blog.
- Log in to Blogger
- Click Create New Blog
- Enter a temporary Blogspot address
Example:mysubdomain-temp.blogspot.com - Choose a title (you can change it later)
- Create the blog
This temporary address is important. Don’t skip it.
Step 3: Open DNS Settings of Your Domain
Now go to your domain provider.
Common providers:
- GoDaddy
- Namecheap
- Google Domains
- Cloudflare
- Hostinger
Look for:
- DNS Management
- DNS Zone Editor
- Manage DNS
Step 4: Add CNAME Record for the Subdomain
This is the most important step.
Add a New CNAME Record
Example for blog.example.com:
- Type: CNAME
- Name / Host: blog
- Value / Target: ghs.google.com
- TTL: Default or Auto
Save the record.
This tells the internet:
“Send blog.example.com traffic to Blogger.”
Step 5: (Optional but Recommended) Add A Records
This step improves reliability.
Add these A records (if not already present):
- 216.239.32.21
- 216.239.34.21
- 216.239.36.21
- 216.239.38.21
Name/Host: @
If your main domain already works on Blogger, these may already exist.
Step 6: Connect Subdomain Inside Blogger
Now go back to Blogger.
- Open your new blog
- Go to Settings
- Click Custom Domain
- Enter:
blog.example.com - Click Save
If DNS is correct, it will connect.
Step 7: Enable HTTPS
Very important.
- Go to Settings
- Find HTTPS
- Turn ON:
- HTTPS Availability
- HTTPS Redirect
This improves security and SEO.
Step 8: Wait for DNS Propagation
DNS changes are not instant.
Typical wait time:
- 10 minutes to 1 hour
- Sometimes up to 24 hours
If you see errors, wait before panicking.
Common Errors When Adding a Subdomain in Blogger
Let’s save you some frustration.
Error 1: “We have not been able to verify your authority”
Cause:
- Wrong CNAME record
- Typo in subdomain name
Fix:
- Double-check DNS entries
- Make sure there’s no extra dot or space
Error 2: Subdomain Opens But Shows Error Page
Cause:
- HTTPS not enabled
- DNS still propagating
Fix:
- Enable HTTPS
- Wait a bit longer
Error 3: Redirect Loop
Cause:
- Conflicting redirects
- Cloudflare proxy enabled
Fix:
- Turn off proxy (set to DNS only)
- Disable forced redirects temporarily
SEO Best Practices for Blogger Subdomains
Setting up is just step one. Optimizing matters.
Treat Subdomain as a New Website
- Submit it to Google Search Console
- Create a fresh sitemap
- Optimize meta titles and descriptions
Internal Linking Matters
Link between:
- Main domain and subdomain
- Related articles across sites
Do it naturally.
Avoid Duplicate Content
Don’t copy posts from:
- Main domain
- Other subdomains
Original content always wins.
Consistent Branding
Use:
- Same logo
- Similar theme
- Clear navigation
This builds trust.
Can You Use Multiple Subdomains in Blogger?
Yes. Absolutely.
You can run:
blog.example.comnews.example.comtech.example.com
Each needs:
- Its own Blogger blog
- Its own DNS CNAME
There’s no hard limit.
Subdomain vs Subdirectory: Which Is Better?
This question comes up a lot.
Subdomain
- blog.example.com
- Treated as separate site
- More control
Subdirectory
- example.com/blog
- Shares authority
- Not possible in Blogger
Since Blogger doesn’t support subdirectories, subdomains are the best option.
Google AdSense and Blogger Subdomains
Good news.
Subdomains are AdSense-friendly if:
- Content is original
- Policies are followed
- No misleading or restricted content
You don’t need a separate AdSense account for each subdomain. One account can cover all.
Just add the subdomain as a site in AdSense settings.
Security Tips for Blogger Subdomains
- Always use HTTPS
- Avoid third-party scripts from unknown sources
- Use strong Google account security
- Enable two-step verification
Simple steps, big protection.
Final Checklist Before Going Live
Before sharing your subdomain:
- ✅ DNS records added correctly
- ✅ Subdomain opens without errors
- ✅ HTTPS enabled
- ✅ Mobile view works
- ✅ Basic SEO settings done
Once these are checked, you’re good to go.
Frequently Asked Questions (FAQ)
How long does it take to add a subdomain in Blogger?
Usually between 10 minutes and a few hours. In rare cases, up to 24 hours due to DNS propagation.
Can I add a subdomain in Blogger without a custom domain?
No. Subdomains only work with custom domains, not Blogspot URLs.
Is a subdomain free in Blogger?
Yes. Blogger does not charge anything. You only pay for your domain.
Can I use the same theme on multiple subdomains?
Yes. You can reuse themes, but customize content and layout for better results.
Does a subdomain affect SEO negatively?
No, if done correctly. Poor content hurts SEO, not subdomains.
Can I move an existing blog to a subdomain?
Yes. Just connect the new subdomain to the existing blog instead of creating a new one.
Conclusion: Is Adding a Subdomain in Blogger Worth It?
Absolutely—when done for the right reasons.
Learning how to add subdomain in Blogger gives you:
- Better structure
- More flexibility
- Professional branding
- Room to grow
The process may look technical at first, but once you’ve done it once, it’s straightforward. Take your time. Double-check DNS settings. Follow best practices.
If you’re serious about blogging, subdomains are not just an option—they’re a smart upgrade.