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.
What is a subdomain finder? ›
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. SSL certificates.
How do I find subdomains of a domain using nslookup? ›
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.
How do I find the DNS record of a subdomain? ›
Using a terminal and the command nslookup is the most effective way to search a domain's DNS records. On almost all operating systems, this command works perfectly and displays all DNS records for the domain. To show how to use the command, here's a sample nslookup command for each record type.
What tool to use to find subdomains? ›
Top 10 Subdomain Finders for Great Website Reconnaissance
- Sublist3r. Sublist3r is a python-based tool for listing subdomains of a website. ...
- Amass. Amass is a command line tool that can find subdomains by crawling web pages, search engines, and passive DNS sources. ...
- Subfinder. ...
- Knockpy. ...
- Subbrute. ...
- Aquatone. ...
- Recon-ng. ...
- Subdomainizer.
What is a subfinder? ›
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.
What is all in one subdomain enumeration tool? ›
SubDomz is an automation tool for finding the subdomains of the given target or targets passively. It uses multiple tools and various online search engines and services in parallel to find subdomains effectively and sort and save them in an organized way.
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.
How do subdomain scanners work? ›
The Subdomain Scanner uses the target domain's DNS server (or any other DNS server specified) to scan the DNS records for possible subdomains. While scanning, the Subdomain Scanner will also automatically identify if the domain being scanned uses wildcards (*. example.com).
How many subdomains does a domain have? ›
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.
Subdomain enumeration is an important step in the reconnaissance phase of a penetration test or a security assessment. It involves identifying all the subdomains associated with a domain, which can reveal potential attack vectors. As the digital landscape evolves, so do the techniques for subdomain enumeration.
What is the FQDN of the associated subdomain? ›
The FQDN serves to show the exact location of a computing resource inside the Domain Name System (DNS) hierarchy. An FQDN is traditionally written as a list of domain labels: the top-level domain, the second-level domain name, a subdomain (if used), and the host domain, each separated by dots or periods.
Which DNS record for subdomain? ›
A subdomain is a type of DNS record that adds a prefix to your domain, such as blog.mycoolnewbusiness.com. You can create a subdomain that uses an IP address by adding an A record to your DNS zone file. If you need a subdomain that connects to another domain name, you'll need to add a CNAME record instead.
Do subdomains have separate DNS records? ›
2 Answers. Each name has its own DNS records – really, the whole point of subdomains is that each of them can have different records (and point to different IP addresses) than the main domain. Because of that, each name is cached independently.
How to find the IP address of a subdomain? ›
go to https://dnschecker.org/ and enter the subdomain, it will show the IP address for the subdomain.or just ping the subdomain and the IP address will show.
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.