Subdomainfinder (2024)

FAQs

Are subdomains bad for SEO? ›

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

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.

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

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.

Subdomains allow webmasters to organize their content, so they can maintain an ecommerce store on one domain, for example, and a blog on another. However, Google treats subdomains as separate sites.

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).

Subdomains can rank well on Google, but it depends on various factors such as the quality and relevance of the content, the authority and popularity of the domain, and the competition in the specific search terms you are targeting.

If you buy a domain you control all of its subdomains, but if you have no hosting then you will have nowhere to connect the subdomains to. So yes, you get access to all the domain's subdomains, and you could even forward the subdomain to any page you like for free if your registrar offers free domain forwarding.

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.

Can you sell sub-domains? - Quora. Yes, you can do this sort of thing. Example: https://suntimes.chicago.com/searches/new where they sell email addresses and subdomains in various configurations. There are probably other examples as well, but this one is reasonably well know.

How to 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.

Subdomain stripping is the process of removing the subdomains from the main domain and delivering the emails to the main domain directly.

SubScraper is a subdomain enumeration tool that uses a variety of techniques to find subdomains of a given target. Subdomain enumeration is especially helpful during penetration testing and bug bounty hunting to uncover an organization's attack surface.

You can usually locate it in the root or footer section of the website. For example, the XML sitemap URL could be “www.example.com/sitemap.xml“. Once you click on the sitemap, you will find all pages & subpages of a website. You can use different sitemap generation tools if you don't have an existing sitemap.

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.

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.

Using a dimension to filter by subdomain in GA4 reports

The default settings in GA4 allow you to see when users move between your domain and your subdomains. The fastest way is by using the Hostname dimension in the standard GA4 reports. You can, for example, use this in the Engagement report as follows.