Subdomain Finer (2024)

FAQs

Is there a way to find all subdomains? ›

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)

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.

Thus, it is best to choose subdomain names that are stable and unlikely to need changing. You can use either full words, such as manufacturing, or abbreviations, such as manf, as subdomain names, but it will confuse users if some subdomains are named with abbreviations and others with full names.

Optimize Your Subdomains & Subdirectories for SEO

The choice between subdomains and subdirectories largely depends on reasons outside of 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.

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.

A subdomain is an additional directory or location of a website that is typically used to distinguish content types or the type of information presented with each subdomain. Subdomain addresses can help improve a website's navigation, SEO, or even a website's organizational needs.

Are subdomains bad for SEO? Subdomains aren't directly bad for SEO, but they're not always the most strategic choice. Google states that subdomains and subdirectories are both fine, but subdomains are crawled and tracked separately.

What are good subdomain names? ›

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.

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.

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.

Find Subdomains of a Domain with NsLookup:

Replace “example.com” with the domain name you are interested in. This command will return a list of the authoritative name servers for the domain, which can often include the subdomains.