FAQs
The Deep scan uses multiple techniques to find subdomains fast and effectively:
- DNS records (NS, MX, TXT, AXFR)
- Enumeration using built-in wordlists, plus the option to use your own.
- External APIs search.
- Public search engine queries (Google search, Bing)
- Word mutation techniques.
- Searching in SSL certificates.
Is a subdomain bad for SEO? ›
While subdomains can work well for some companies, depending on their goals, a subdirectory is often a better choice for SEO.
Is subdomain enumeration legal? ›
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.
How does subdomain finder work? ›
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)
What is the best tool to find subdomains? ›
Here are ten highly effective options.
- Google Dorking. Google Dorking is a passive subdomain enumeration technique using Google's advanced search operators, like "site:" to find information about a target, including subdomains. ...
- Sublist3r. ...
- Amass. ...
- Recon-ng. ...
- SubDomainizer. ...
- Pentest Tools Subdomain Finder. ...
- crt.sh. ...
- Shodan.
How do I find all subsites of a website? ›
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.
Do subdomains get indexed by Google? ›
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.
Do subdomains rank in Google? ›
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.
Do I own a subdomain if I own a domain? ›
1 Answer. Yes, you own and control the entire namespace below the domain you purchase, because DNS is hierarchical. Creating mail.example.com and blog.example.com is just a matter of adding entries to the DNS zone that you control. Since you asked about the name.
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.
Can you sell sub-domains? - Quora. Yes, you can do this sort of thing. Example: https://suntimes.chicago.com/searches/new where they sell email addresses and subdomains in various configurations. There are probably other examples as well, but this one is reasonably well know.
What is the alternative to a subdomain? ›
“The key alternative to a subdomain, when deploying and integrating other web content, is a subdirectory. A subdirectory would simply involve making a directory under your main website directory. An example is: http://www.joespopshop.com/members.
Are subdomains searchable? ›
Google bots can find and index pages on a subdomain in the same way they do on a subdirectory. Subdomains also have several advantages in terms of what Google looks for in an authoritative website.
Who owns a subdomain? ›
Let's say you are making a pitch to a client to create their new website. You can create a subdomain that is specifically intended for them to give an idea of what their new website might look like. This is hosted on your own main domain, while retaining ownership of the subdomain.
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.
How to search subdomains in Google? ›
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.
How to list all DNS records in nslookup? ›
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.
How many subdomains is too many? ›
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.
How do I find dangling subdomains? ›
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.