Subdomain Finder (2024)

FAQs

Is there a way to find all subdomains? ›

Subdomains aren't inherently bad for SEO, but they can impact your site's SEO strategy if not used wisely. Since subdomains are treated as separate entities by search engines, they may dilute the overall authority of your main site if not managed properly.

Subdomain Finder scans the DNS records and supplementary databases to analyze the domain's hierarchy. Our subdomain scanner checks: DNS records (NS, MX, TXT, AXFR)

If all else fails, you can use Google search to find all the pages on a website. Simply type “site:example.com” (replace “example.com” with the website's URL) into Google's search bar, and it will return a list of all the pages on that site that Google has indexed.

The short answer is yes, Google can and will index and rank subdomains unless you explicitly take steps to ensure they're excluded from its index. Google's entire business model is based on discovering content. The same goes for all search engines.

In general, subdomains can rank well on Google if they have high-quality content that is relevant to the user's search query. However, subdomains may have less authority than the main domain, which can make it harder for them to rank for competitive keywords.

Yes. You may need to check what your hosting provider will actually provide, and if there are costs involved, but for most, there are few limits, and most provide email service and subdomains as part of the bundle. Yes, it's your domain name. You can do what you want as far as creating sub domains and email addresses.

Subdomain hijacking, also known as dangling DNS, occurs when a threat actor gains control of a subdomain of a legitimate domain.

What is a common example of a subdomain? ›

While a subdomain will appear before your TLD, a subdirectory link will include the subdirectory name after the original TLD. For example: Subdomain example: mysubdomain.mywebsite.com. Subdirectory example: mywebsite.com/mysubdirectory.

Simply enter the subdomains, one per line. In the example below, Sitebulb would crawl https://blog.example.com and https://support.example.com and treat those subdomains as internal (but NOT https://community.example.com or any other subdomain).

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.

Subdomain stripping is the process of removing the subdomains from the main domain and delivering the emails to the main domain directly.

Ranking a subdomain is similar to ranking your main domain. Search engines still care about the subdomain's age, authority, keywords, and other ranking factors. But in practice, a subdomain can have a big impact on SEO. Search engines treat subdomains as completely separate websites.

Google Dorking

Google Dorks are one of the best ways to find extenstive information about a target. Google's search operators make it easy to narrow down the search to find more subdomains. We can use the "site" operator in the search bar to find all the subdomains that Google has indexed for a domain.

Using nslookup online is very simple. Enter a domain name in the search bar above and hit 'enter'. This will take you to an overview of DNS records for the domain name you specified.

Each domain name can have up to 500 subdomains. You can also add multiple levels of subdomains, such as info.blog.yoursite.com. A subdomain can be up to 255 characters long, but if you have multiple levels in your subdomain, each level can only be 63 characters long.

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.