Subdomain Finder (2025)

1. Subdomain Finder - C99.nl

  • Subdomain Finder is a scanner that scans an entire domain to find as many subdomains as possible.

2. Free subdomain finder online 🛡️ find subdomains of domain

  • Use the free subdomain scanner to lookup and check all the subdomains of a domain. Check how many sub domains you can find to map your attack surface.

Free subdomain finder online 🛡️ find subdomains of domain

3. Subdomain finder - 9 Enumerating tools hosted online

  • Online subdomain finder, discovery and research tools to collect and gather DNS information about hosts · Knockpy · Sublist3r · DNSscan(Realtime) · Anubis ...

  • Nmmapper.com offers Online network penetration and mapping tool for penetration testers and System administrators.

Subdomain finder - 9 Enumerating tools hosted online

4. Free Subdomain Finder: Find all Subdomains of a Website

  • Free subdomain scanner can help find all website subdomains and get additional information like traffic share or the number of keywords.

Free Subdomain Finder: Find all Subdomains of a Website

5. Subdomains Lookup | Find all subdomains | WhoisXML API

  • Learn more · API · Database · Domains & Subdomains...

  • Find all the subdomains of a domain with our subdomain finder tools. Access 2.3+ billion subdomains from 10+ years of data crawling. Get started today.

Subdomains Lookup | Find all subdomains | WhoisXML API

6. DNSDumpster.com - dns recon and research, find and lookup dns records

7. Subdomain Finder Tool | Find all Subdomains of a Website

  • A Website Subdomain Finder by Sitechecker is a tool or software used to identify the subdomains of a given domain name. The tool provides a technical assessment ...

  • Optimize your website's SEO with our Subdomain Finder Tool, perfect for auditing, competitor analysis, and compliance.

Subdomain Finder Tool | Find all Subdomains of a Website

8. Top 10 Subdomain Finders for Great Website Reconnaissance in Bug ...

  • Aug 15, 2023 · Subdomain Finder is a useful tool to help discover website subdomains. They can be used for a variety of purposes, including website ...

  • Subdomain enumeration is the process of finding #subdomains of a particular domain. Subdomain Finder is a useful tool to help discover…

Top 10 Subdomain Finders for Great Website Reconnaissance in Bug ...

9. Top 10 Subdomain Finders for Great Website Reconnaissance - LinkedIn

  • Mar 11, 2023 · Subdomain Finder is a useful tool to help discover website subdomains. They can be used for a variety of purposes, including website ...

  • Subdomain enumeration is the process of finding #subdomains of a particular domain. Subdomain Finder is a useful tool to help discover website subdomains.

Top 10 Subdomain Finders for Great Website Reconnaissance - LinkedIn

10. Find site Subdomains and Mirrors Online - Free tool - SiteAnalyzer

  • Subdomain Scanner tool is designed to search for subdomains of an interesting website. Our online checker can find all subdomains of a target domain.

  • Subdomain search tool will find all subdomains and website mirrors indexed by the Google.

11. Kali linux most used subdomain finder | Ethical-tools

  • Dec 9, 2019 · Sublist3r is a python tool designed to enumerate subdomains of websites using OSINT. It helps penetration testers and bug hunters collect and ...

  • There are many subdomain finder tools out there on GitHub, if you search for subdomain finder you will find a backlog of repositories on GitHub all offering subdomain finder and enumerating tools.

Kali linux most used subdomain finder | Ethical-tools

12. SubDomainizer - Subdomain finder in Kali Linux - GeeksforGeeks

  • Jun 6, 2021 · SubDomainizer – Subdomain finder in Kali Linux ... SubDomainizer is a free and open-source tool available on GitHub. This tool is free means you ...

  • A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.

SubDomainizer - Subdomain finder in Kali Linux - GeeksforGeeks

13. Subdomain Finder - OpenTunnel

  • Subdomain Finder is a scanner that scans an entire domain to find as many subdomains as possible.

14. Nmmapper Subdomain finder,Nmap online,theharvester

  • Nmmapper offers nmap scans,9 subdomain finder tools,theHarvester,wappalyzer,whatweb online.

  • Nmmapper.com offers Online network penetration and mapping tool for penetration testers and System administrators.

Nmmapper Subdomain finder,Nmap online,theharvester

15. Subdomain finder | Devina.io

  • Subdomain finder. Find all the subdomains for a specific website. Lookup. Do you like Devina.io? Sharing Devina.io with your friends helps us grow and improve ...

  • Find all the subdomains for a specific website

16. Get a list of subdomains | WhoisXML API

  • Use Subdomains Lookup API in addition to Domain Research Suite to correlate WHOIS records with subdomain intelligence when doing in-depth investigations and ...

  • List all the subdomains of a website via API calls in JSON and XML. Each subdomain list contains the total count and timestamps. Get free access today.

Get a list of subdomains | WhoisXML API
Subdomain Finder (2025)

FAQs

How can I find subdomains? ›

The Deep scan uses multiple techniques to find subdomains fast and effectively:
  1. DNS records (NS, MX, TXT, AXFR)
  2. Enumeration using built-in wordlists, plus the option to use your own.
  3. External APIs search.
  4. Public search engine queries (Google search, Bing)
  5. Word mutation techniques.
  6. Searching in SSL certificates.

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.
May 13, 2024

Are subdomains bad for SEO? ›

Subdomains aren't directly bad for SEO, but they're not always the most strategic choice.

How to get a website subdomain? ›

To create a subdomain, please do the following:
  1. Go to your Domain List and click Manage next to the domain:
  2. Select the Advanced DNS tab:
  3. Find the Host Records section and click on the Add New Record button (not able to edit Host Records?):
  4. Select the way your subdomain will be connected from the list below:

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.

Does Google show 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.

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.

What is the best use of subdomains? ›

Typically, subdomains are used if there is content that is distinct from the rest of the site. For example, blog.examplesite.com and shop.examplesite.com are subdomains of www.examplesite.com.

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 I get subdomain for free? ›

If you don't already own a custom domain and aren't ready to buy one, you can create a free subdomain (like "mybusiness. square. site") for your Square Online site. This helps with getting you up and running quickly while you continue creating your website and building your brand.

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.

Can I create my own subdomain? ›

Rather than registering a new domain name, you can always create a subdomain using your existing domain name. A subdomain is an addon to your primary domain with its unique content. It is a separate part of your website that operates under the same primary domain name without you purchasing a new domain.

Where is the subdomain in a URL? ›

org, and the second-level domain (SLD) is the unique part of the domain name, often a business or brand name. In the hubspot.com example, com is the TLD and hubspot is the SLD. The subdomain is what goes before the SLD.

How do I get all DNS records for a domain including subdomains? ›

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.

Are subdomains still used? ›

People use subdomains for things like blogs, country-specific locations, or any time it feels like there are substantial resources on a topic, and they don't want to build out the main site. One example would be a help center like support.google.com. In all cases, subdomains help to organize the content by theme.

How do I find all the hosts of a domain? ›

Use ICANN Lookup

The Internet Corporation for Assigned Names and Numbers (ICANN) is a non-profit organization that collects domain information. Use the ICANN Lookup tool to find your domain host. Go to lookup.icann.org. In the search field, enter your domain name and click Lookup.

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