Check Subdomains Of A Domain (2024)

FAQs

Is there a way to find all subdomains? ›

There are some subdomains that are defined for virtually every domain name, such as www, and others that are very common, like shop or mail. But by going through and trying a DNS query using `dig`, `nslookup`, or `host` for as many possible subdomains, you might find some hidden ones.

Characteristics and Parameters of a Subdomain

A domain can have up to 500 subdomains. You can create multiple levels of subdomains such as store.product.yoursite.com, test.forum.yoursite.com, etc. Each subdomain can be up to 255 characters long, but for multi level subdomains, each level can only be 63 characters long.

There is a tool called HTTPX, which is used to check Subdomains are Active or Not and there are multiple methods to use this tool.

Optimize Your Subdomains & Subdirectories for SEO

Both can be SEO-friendly. Whether you decide to use subdomains or subdirectories, you need to optimize them for the best chance of ranking in search engines.

If you have a website with a subdomain, and the subdomain has content that Googlebot can read, Google should index that content. Content which is showing on google search results is content from pages that are already indexed by Google bots.

subfinder is a subdomain discovery tool that returns valid subdomains for websites, using passive online sources. It has a simple, modular architecture and is optimized for speed. subfinder is built for doing one thing only - passive subdomain enumeration, and it does that very well.

Yes. you can verify your subdomain to be used in Google Search Console by linking your account to Google Analytics. This way you avoid customizing the theme of your help center. Go to www.google.com/analytics and set up a property within your Google Analytics account for your subdomain.

Your subdomain reputation(s) can impact base domain reputation, but the impact between subdomains will be small. Subdomains are not a way to avoid a bad domain reputation. Instead, they will help differentiate your traffic while maintaining a clear relationship with your main domain.

What are the disadvantages of subdomains? ›

GoDaddy doesn't limit the number of subdomains you can have, but it does limit the total number of records in your zone file.

By search engines

Search engines like Google supports various advanced search operators to refine search queries. These operators are often referred to as Google Dorks. We can use site: operator in Google search to find all the Subdomains that Google has found for a Domain. Lets take an example on “site:vulnweb.com”.

Using a terminal and the command nslookup is the most effective way to search a domain's DNS records. On almost all operating systems, this command works perfectly and displays all DNS records for the domain. To show how to use the command, here's a sample nslookup command for each record type.

To identify DNS entries within your organization that might be dangling, use Microsoft's GitHub-hosted PowerShell tools "Get-DanglingDnsRecords". This tool helps Azure customers list all domains with a CNAME associated to an existing Azure resource that was created on their subscriptions or tenants.

PSA: Remember that subdomains are not a secret and should not be used to hide or secure services.

Yes, a quick way is to type "site:YOURDOMAIN.com filetype:xml" in the Google search bar, replacing "YOURDOMAIN.com" with the website's domain. The search results may yield a list of indexed XML files linked to the website, including the sitemaps.

To identify DNS entries within your organization that might be dangling, use Microsoft's GitHub-hosted PowerShell tools "Get-DanglingDnsRecords". This tool helps Azure customers list all domains with a CNAME associated to an existing Azure resource that was created on their subscriptions or tenants.