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.
Are subdomains bad for SEO? ›
As long as you use them correctly, subdomains are fine for your SEO performance.
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) DNS enumeration.
What is the best tool to find subdomains? ›
The Best Subdomain Enumeration Tools
- 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 many subdomains is too many? ›
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.
Does Google like subdomains? ›
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.
What is better, a subdomain or a subdirectory? ›
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).
Can subdomains rank in Google? ›
Subdomains can rank well on Google, but it depends on various factors such as the quality and relevance of the content, the authority and popularity of the domain, and the competition in the specific search terms you are targeting.
Do I own a subdomain if I own a domain? ›
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.
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.
Do subdomains need their own DNS record? ›
Within the same domain, you can create one or more subdomains. This allows you to organise the structure of your website, or group different websites on the same server. By default, the domain and its subdomains are part of the same DNS zone, i.e. they are hosted on the same web server.
Are subdomains searchable? ›
YES. Search engines index subdomains – this has been established.
Who owns the subdomain? ›
Create subdomains for specific users or clients
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.
How do I find all the subsites of a website? ›
You can usually locate it in the root or footer section of the website. For example, the XML sitemap URL could be “www.example.com/sitemap.xml“. Once you click on the sitemap, you will find all pages & subpages of a website. You can use different sitemap generation tools if you don't have an existing sitemap.
How to search subdomains in Google? ›
By search engines
Search engines like Google supports various advanced search operators to refine search queries. These operators are often referred to as Google Dorks. We can use site: operator in Google search to find all the Subdomains that Google has found for a Domain. Lets take an example on “site:vulnweb.com”.
What search phrase can be used to find subdomains of a website? ›
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.
Can Nmap scan subdomains? ›
While Nmap is primarily used for network mapping, it can also be used for subdomain hunting. Nmap uses various techniques, such as port scanning, to identify active subdomains and gather information about them.