Subdomain Finder (2024)

FAQs

Is there a way to find all subdomains? ›

As long as you use them correctly, subdomains are fine for your SEO performance.

This type of subdomain enumeration is resource-intensive and may have legal and ethical implications since sending large requests to a target domain is required. Because of its intrusive nature, active subdomain enumeration may trigger security alerts.

Subdomain Finder scans the DNS records and supplementary databases to analyze the domain's hierarchy.

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.

Subdomains allow webmasters to organize their content, so they can maintain an ecommerce store on one domain, for example, and a blog on another. However, Google treats subdomains as separate sites.

Yes, subdomains can affect Google's indexing. They are typically treated as separate entities from the main domain, meaning they are indexed and ranked independently. This requires a distinct SEO strategy for each subdomain to ensure effective indexing and ranking.

According to Google, subdomains and subdirectories are seen as equal when it comes to indexing and ranking. That said, real-world case studies show that subdirectories tend to rank faster and more effectively than subdomains on the first page of the search engine results page (SERPs).

Yes. When you purchase the root domain, you can set up any subdomain you want on that root domain. Before you use Google Search Console (used to be Google Webmaster Tool), you should set up your site so that all traffic going to the root domain gets redirected to the www version.

What is subdomain hijacking? ›

It's a cyber threat executed when an attacker gains control of a legitimate subdomain that's no longer in use, then cleverly exploits the forgotten or misconfigured dangling DNS to host their own content on the previously used zone.

So, securing every subdomain is imperative. But the good news is, you don't have to buy separate SSL certificates for all your registered subdomains. A single wildcard certificate can secure your primary domain and all your first-level subdomains.

It means that subdomains are search engine indexable!

Only humans care if the content is on the hosting of the root domain. Search engine robots could not care less. If content is on a subdomain, it is spidered as part of the overall website.

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.

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. Google also supports the minus operator to exclude any subdomains we are not interested in.

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.

subfinder is a subdomain enumeration tool written in the Go programming language. Subfinder is used for discovering passive subdomains of websites by using digital sources like Censys, Chaos, Recon. dev, Shodan, Spyse, Virustotal, and many other passive online sources.