Subfinder Online (2024)

FAQs

What is Subfinder used for? ›

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.

Subfinder is an open source tool for discovering subdomains.It can find subdomains using various search engines including Google, Yahoo, Bing, etc. Additionally, it can discover subdomains using passive DNS and other sources.

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.

One of the critical features of a subfinder is that it uses only the passive method of subdomain enumeration. It does not actively connect to the target domain. Instead, it simply gathers information from publicly available sources and presents it to the user.

SubDomz is an automation tool for finding the subdomains passively of the given target or targets. It uses multiple tools and various online search engines and services in parallel to find subdomains effectively and sort and save them in an organised way.

However, Google treats subdomains as separate sites.

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

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.

Subdominator is a dependable and fast open-source command-line interface tool to identify subdomain takeovers.

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.

What are common URL subdomains? ›

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.

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. At Hostinger, we provide subdomains on every hosting plan.

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

This package contains a subdomain discovery tool that discovers valid subdomains for websites by using passive online sources. It has a simple modular architecture and is optimized for speed. subfinder is built for doing one thing only - passive subdomain enumeration, and it does that very well.

Subdomain enumeration is the process of listing out all the valid subdomains that are part of the larger domain.

A subdomain takeover occurs when an attacker gains control over a subdomain of a target domain. Typically, this happens when the subdomain has a canonical name (CNAME) in the Domain Name System (DNS), but no host is providing content for it.

Use the -nW flag to exclude wildcard subdomains: Wildcard subdomains are subdomains that match any subdomain name. They can make it difficult to find actual subdomains. You can exclude wildcard subdomains using the -nW flag.