Subdomains Lookup | Find all subdomains | WhoisXML API (2024)

FAQs

Is there a way to find all subdomains? ›

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.

A subdomain is a prefix added to a domain name to separate a section of your website. Site owners primarily use subdomains to manage extensive sections that require their own content hierarchy, such as online stores, blogs, job boards or support platforms. Subdomains function as a separate website from its domain.

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) DNS enumeration.

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.

Subdomains can be more difficult to setup and sometimes there may be cross-domain tracking issues or complications when setting up web analytics. However, the advantages of subdomains neglect the disadvantages. Creating subdomains has some SEO benefits, like better keyword targeting, more backlinks and so on.

Google will not penalize international websites that exist on separate subdomains if they have duplicate content.

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.

Which subdomain is historically the most used? ›

As you can see, the most popular subdomain is by far "www" (the famous World Wide Web initials still in use today), followed by mail, forum, m, and blog. Other popular records are related to e-commerce (shop), and community and content-related stuff (forums, wiki, community).

Subdomains are often used when different sections of your site require separate servers and software. If, for example, your site has an international audience, separate subdomains allow for variations in content and language specific to the geographic region, all under the umbrella of the main site.

A hostname can consist of many sub-domains. For example, www.motorace.blogspot.google.com. In theory, a hostname could include 126 levels of subdomain.

Regular domains are your standard URLs like splashthat.com or splashthat. events. Subdomains are a unique URL that lives on your purchased domain as an extension in front of your regular domain like support.splashthat.com or blockparty.splashthat.com.

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.

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.

Search at Google

To find all available pages on a specific domain using Google, simply enter "site.com" into the Google search bar. This search query will return a list of indexed pages from that domain, helping you quickly identify the available content. Find website pages on Google.

Go to GA4 admin > Data Streams > Select your web data stream > Configure Tag Settings > Show More > List unwanted referrals and then enter your main domain there. For example, if your subdomains are subdomain1.example.com and subdomain2.example.com, then enter example.com in the settings of GA4.