Subdomain Finder (2025)

1. Subdomain Finder

  • [2020-05-12] api.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.

3. 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.

4. 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.

5. Subdomains Lookup | Find all subdomains | WhoisXML API

6. 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.

7. Nmmapper Subdomain finder,Nmap online,theharvester

  • Subdomains · Nmap online port scanner... · theHarvester · Bing IP2Host

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

8. Subdomain Finder - RapidAPI

  • 6 mei 2024 · CODEROG Subdomain Finder API provides a simple and efficient way to discover subdomains associated with a given domain.

  • CODEROG Subdomain Finder API provides a simple and efficient way to discover subdomains associated with a given domain. It leverages advanced scanning techniques to uncover a comprehensive list of subdomains along with their corresponding IP addresses or CNAME records. Whether you're conducting security assessments, domain management, or market research, this API offers valuable insights into the online presence of any domain.

9. Subdomain Finder - OpenTunnel

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

10. VScanner's Subdomain Finder - #1 Subdomain Enumeration Tool

  • Uncover hidden subdomains with VScanner's Subdomain Finder. Ideal for security experts, it offers fast, comprehensive subdomain enumeration for better ...

  • Uncover hidden subdomains with VScanner's Subdomain Finder. Ideal for security experts, it offers fast, comprehensive subdomain enumeration for better attack surface understanding.

11. 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.

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

  • 15 aug 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…

13. Subdomain Finder Online - Security For Everyone

  • Subdomains often address different sections of a website. Each subdomain could be a new attack vector for you. Use our free and online tool to find ...

  • Subdomains often address different sections of a website. Each subdomain could be a new attack vector for you. Use our free and online tool to find subdomains.

14. How to Find Subdomains of a Domain? | BOTSTER.io

  • Subdomains Finder · In short · 1. Open the Launch bot form · 2. Enter the details · 3. Enter your domain. · one URL · 4. Set up notifications · 5. Start the bot!

  • Free to try! Find ALL subdomains of a domain online. No limits! Download data as an XLSX, CSV or JSON file.

15. Subdomain Finder - Pentest-Tools.com

  • Finding subdomains is an important step in the information gathering phase of a penetration test. Subdomains are interesting because they point to various (less ...

  • Discover subdomains and determine the attack surface of an organization.

Subdomain Finder (2025)

FAQs

How can I find subdomains? ›

There are several ways to find subdomains:
  1. Manually, by using the site:* operator in Google.
  2. By checking DNS records using the nslookup command.
  3. By using our online subdomain scanner or similar tools.

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

How do I 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.

What is Osint subdomain enumeration? ›

OSINT (Sublist3r)

Sublist3r is a popular open-source tool used for subdomain enumeration. It works by querying various search engines and DNS databases to identify subdomains associated with a particular domain name.

How does Google find subdomains? ›

Google discovers and prioritizes the indexation of URLs based on the links pointing to those URLs. These links can be from external domains or from other accessible subdomains on the same root domain.

Are subdomains free? ›

You don't have to pay for subdomains if you already have a domain name. However, you may have to pay extra for a hosting plan that includes subdomains.

What is a subdomain finder? ›

A Subdomain Finder is a subdomain enumeration tool that helps you discover subdomain hosts (aka subdomain FQDNs) which serve specific functions for your target (e.g. hosting public websites, private subdomains for testing web apps, URLs where you can find backups, etc.).

Where can I get a free subdomain? ›

When you first set up your Square Online site, you'll automatically get a free subdomain that's based on your business information.

Does Google index subdomains? ›

Google treats subdomains and URLs differently when indexing websites: Subdomains: Google may consider subdomains as separate entities, each with its own ranking potential and SEO factors. They can be treated as distinct websites. URLs: Individual URLs within a domain are typically treated as part of the same website.

What does a subdomain URL look like? ›

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 do I know if something is a subdomain? ›

Subdomains are the part of a domain that comes before the main domain name and domain extension. They can help you organize your website. For example, docs.themeisle.com . In this URL, docs is the subdomain.

Do subdomains have IP addresses? ›

Domains and subdomains do not have IP addresses. Domains and subdomains contain hosts (usually more than one) and they may have IP addresses (sometimes more than one). To change the IP address for a host in a domain, add or change an A or AAAA record (or both) for the host in that domain's zone file.

What is the dark side of OSINT? ›

The word originated from an abbreviation of the term “dropping documents.” Doxing is the dark side of OSINT. It is the act of compiling a dossier against the victim and publishing it online. Anyone can fall victim to doxing. The methods used to gather information are the same as those used in OSINT.

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 do hackers use OSINT? ›

Hackers use OSINT to find and exploit vulnerabilities in your organization. This information can come from many different sources, such as those under your own control, from your employees, from leaked/stolen data and from search engines that index devices connected to the open internet.

Are subdomains included with the domain? ›

A subdomain name is a piece of additional information added to the beginning of a website's domain name. It allows websites to separate and organize content for a specific function — such as a blog or an online store — from the rest of your website.

What is a subdomain in a URL? ›

A subdomain is a prefix added to a domain name to separate a section of your website. Site owners primarily use subdomains to manage extensive sections that require their own content hierarchy, such as online stores, blogs, job boards or support platforms. Subdomains function as a separate website from its domain.

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