Subdomain Scan (2024)

1. 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.

2. Subdomain Finder -

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

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 ...

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

4. Find all Subdomains of a Website - SE Ranking

5. - dns recon and research, find and lookup dns records

  • More than a simple DNS lookup this tool will discover those hard to find sub-domains and web hosts. The search relies on data from our crawls of the Alexa Top 1 ...

  • Find dns records in order to identify the Internet footprint of an organization. Recon that enables deeper security assessments and discovery of the attack surface.

6. Subdomain Scanning 101: What You Need to Know - Medium

  • Jan 8, 2023 · Subdomain scanning is a process of identifying subdomains for a given domain. This can be useful for a number of reasons, ...

  • Subdomain scanning is a process of identifying subdomains for a given domain. This can be useful for a number of reasons, such as…

7. Subdomains Lookup | Find all subdomains | WhoisXML API

  • API · Database · Lookup · 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.

8. Subdomain Scanner - ️ ReconSage

  • Discover hidden subdomains and their associated IPs quickly and accurately with our fast subdomain scanner ... Instantly scan subdomains using our Fast Subdomain ...

  • Discover hidden subdomains and their associated IPs quickly and accurately with our fast subdomain scanner tool.

9. How to scan a specific subdomain of web site - Qualys Discussions

  • Jul 12, 2016 · Hi everyone- I'm brand new to Qualys, and I'm running into an issue. I need to scan a specific subdomain of a web site.

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10. Discover and scan all subdomains of my source domain

  • Apr 8, 2020 · That's right. Nessus is unable to enumerate subdomains by itself, external tools must be used to generate list of them. Expand Post.

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Subdomain Scan (2024)


What is subdomain scanning? ›

Subdomain scanning is a process of identifying subdomains for a given domain. This can be useful for a number of reasons, such as identifying subdomains that may be vulnerable to attack or finding subdomains that contain sensitive information.

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.).

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.

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. ...
  • ...
  • Shodan.
May 13, 2024

What is the purpose of a subdomain? ›

A subdomain is, as the name would suggest, an additional section of your main domain name. You create subdomains to help organize and navigate to different sections of your main website. Within your main domain, you can have as many subdomains as necessary to get to all of the different pages of your website.

What is an example of a subdomain? ›

In the Domain Name System (DNS) hierarchy, a subdomain is a domain that is a part of another (main) domain. For example, if a domain offered an online store as part of their website , it might use the subdomain .

What is the difference between a website and a subdomain? ›

The domain is the highest level in the website address hierarchy. Subdomains are secondary domains that are part of the primary domain. For instance, in "," "blog" is the subdomain of the "" domain. Subdomains allow you to divide sections of a website under the umbrella of the main domain.

What is the difference between a URL and a subdomain? ›

Regular domains are your standard URLs like or splashthat. events. Subdomains are a unique URL that lives on your purchased domain as an extension in front of your regular domain like or

What is the tool to scan a domain? ›

EasyDMARC's Domain Scanner is a free, powerful, easy-to-use online tool that allows you to check the health and security of your domain in one click. Simply enter your domain name and scan it.

What can hackers do with subdomains? ›

Here are just the 11 most common ways cybercriminals use hacked subdomains:
  • 1) Deface a website page and hurt a company's reputation. ...
  • 2) Steal user data. ...
  • 3) Create a “phishing” page on a credible subdomain. ...
  • 4) Put a redirect to a malicious website. ...
  • 5) Blackmail a company to get paid. ...
  • 6) Steal the source code of a website.
Jul 14, 2021

Is subdomain takeover illegal? ›

Subdomain takeover can have severe legal implications, as attackers may engage in illegal activities or host malicious content on compromised subdomains. It's crucial to report any such incidents to law enforcement authorities and take immediate steps to mitigate the risks to protect your reputation and users.

What is subdomain spoofing? ›

Attackers can impersonate legitimate domain names by creating similar domain names or subdomains that look similar to the real ones. For example, an attacker could create a fake domain name “” with three “o's” instead of two, making it difficult for the victim to distinguish it from the real Google website.

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 (*.

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.

Does Google show subdomains? ›

However, Google treats subdomains as separate sites.

While “” and “” may share a root domain, Googlebot will view them as distinct domains and crawl and index them accordingly.

What is subdomain phishing? ›

Termed “SubdoMailing” by Guardio, this series of attacks exploits the compromised subdomains of reputable companies to disseminate malicious emails. Investigations have revealed that this malicious campaign has been active since 2022.

Is a subdomain bad for SEO? ›

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

When should you use a subdomain? ›

Subdomains are used to segregate and organize different sections of a website for better navigation and content management. Here are some examples: Focuses on the blog, distinct from the main site.


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