Top Subdomain Discovery API alternatives in 2025

Top Subdomain Discovery API Alternatives in 2025

As the digital landscape continues to evolve, the importance of effective subdomain discovery and management cannot be overstated. With numerous APIs available for this purpose, developers and security professionals are often on the lookout for the best alternatives to traditional subdomain discovery APIs. In this blog post, we will explore some of the top alternatives to the Subdomain Discovery API, detailing their features, capabilities, pricing, pros and cons, ideal use cases, and how they differ from one another. By the end, you will have a comprehensive understanding of which API best suits your needs.

Subdomain Explorer API

The Subdomain Explorer API is designed to enhance web security through effective subdomain discovery and management, thereby strengthening brand protection and cybersecurity measures. In today's digital landscape, managing and securing online assets is paramount, especially for organizations with extensive Internet presence.

This API simplifies the discovery, evaluation, and management of subdomains, making it an essential tool for web administrators and security experts. Users can enter a domain name, triggering a meticulous process that systematically detects and catalogs associated subdomains.

Key Features and Capabilities

The Subdomain Explorer API offers several key features:

• Subdomains: To use this feature, you must specify a domain in the parameter. The API employs advanced scanning techniques and domain enumeration methodologies to provide a comprehensive and accurate listing of subdomains.

Example Response:

["0.55.channel.facebook.com", "0.65.channel.facebook.com", "0.channel03.facebook.com", "1-act.channel.facebook.com"]

This response includes a list of detected subdomains, which can be utilized for security assessments, brand protection, and asset management.

Frequently Asked Questions

Q: What are the sources of the data?
A: The data is sourced through advanced scanning techniques and domain enumeration methodologies, ensuring a comprehensive and accurate listing of subdomains.

Q: How can users effectively utilize the returned data?
A: Users can analyze the list of subdomains to identify potential security vulnerabilities, monitor for unauthorized subdomains, and maintain an updated inventory of web assets.

Want to try Subdomain Explorer API? Check out the API documentation to get started.

Subdomain Finder API

The Subdomain Finder API streamlines web security by discovering and managing subdomains efficiently, protecting brands and enhancing cybersecurity measures. This API simplifies the process of discovering, evaluating, and managing subdomains, ultimately bolstering web security and operational efficiency.

Users can initiate a scan by providing a domain URL, which allows the API to return information about subdomains associated with the parent domain.

Key Features and Capabilities

• Get Subdomains: To use this feature, you must specify the URL of a domain in the parameter. The API provides information about subdomains associated with a parent domain, including their IP addresses and whether they are routed through Cloudflare.

Example Response:

{"scan_date":"2024-08-29 00:35:23","subdomains":[{"subdomain":"api.instagram.com","ip":"157.240.252.63","cloudflare":false},{"subdomain":"beta.instagram.com","ip":null,"cloudflare":false}]}

This response includes the scan date and a list of subdomains with their respective IP addresses and Cloudflare status, aiding in security assessments and asset management.

Frequently Asked Questions

Q: What types of information are available through the endpoint?
A: The endpoint provides information on all subdomains associated with a given domain, including their IP addresses and whether they are routed through Cloudflare.

Need help implementing Subdomain Finder API? View the integration guide for step-by-step instructions.

Domain Searcher API

The Domain Searcher API is your gateway to a world of digital possibilities! This API allows users to explore 341 top-level domains on Google Domains with just a keyword, swiftly unveiling domain availability and empowering online ventures.

By entering a keyword, users can discover available domain names that align with their brand identity, making it an essential tool for businesses, developers, and entrepreneurs.

Key Features and Capabilities

• Search Domains: Pass the search term of your choice and receive all the related domains. The response data is organized in a JSON format, making it easy to parse and utilize.

Example Response:

{"status":"OK","request_id":"b9290dc8-9627-4291-b449-7118a537aad4","parameters":{"query":"zylalabs.com","available_only":false,"currency":"USD"}}

This response includes the status of the request, a unique request ID, and the parameters used for the search, allowing users to track their queries effectively.

Frequently Asked Questions

Q: What are the sources of the data?
A: The data is sourced from Google Domains, ensuring a comprehensive and up-to-date selection of available domain names across 341 top-level domains.

Want to use Domain Searcher API in production? Visit the developer docs for complete API reference.

Similar Domain Finder API

The Similar Domain Finder API is a cutting-edge tool designed to simplify the process of locating similar domains or websites within a given niche or industry. This API leverages advanced algorithms and in-depth data analysis to help users discover domains that match specified criteria.

By providing input criteria that define the domain of interest, users can explore the web more effectively, gaining insights into competitors and potential partnership opportunities.

Key Features and Capabilities

• Similar Domains: To use this feature, you must indicate the URL of a domain in the parameter. The API returns a list of domains that share similarities in content, structure, or audience.

Example Response:

{"company":"google.com","competitors":["facebook.com","twitter.com","bing.com","instagram.com"]}

This response includes the analyzed company and a list of its competitors, providing valuable insights for market research and competitive analysis.

Frequently Asked Questions

Q: What are the sources of the data?
A: The Similar Domain Finder API utilizes a comprehensive dataset derived from web crawling and analysis of domain content, structure, and audience metrics to ensure relevant results.

Ready to test Similar Domain Finder API? Try the API playground to experiment with requests.

Domain Insights and Metrics API

The Domain Insights and Metrics API empowers users to input a domain name and access a trove of in-depth information about the associated company. This API offers a comprehensive suite of insights, reminiscent of data found on platforms like Crunchbase, LinkedIn, and Semrush.

With this API, users can uncover funding statistics, website traffic analysis, founder backgrounds, social media connections, and much more, providing a holistic view of a company's digital footprint.

Key Features and Capabilities

• Get Data: To use this feature, you must indicate the URL of a domain in the parameter. This endpoint fetches and consolidates information commonly available on LinkedIn, Crunchbase, and the website itself.

Example Response:

{"data":{"cb":{"properties":{"identifier":{"uuid":"05554f65-6aa9-4dd1-6271-8ce2d60f10c4","value":"Amazon"},"short_description":"Amazon is an e-commerce website for consumers, sellers, and content creators."}}}}

This response includes detailed information about the company, including its identifier and a short description, which can be leveraged for investment analysis and marketing strategies.

Frequently Asked Questions

Q: What types of information are available through each endpoint?
A: The POST endpoint provides insights into funding, website traffic, founder backgrounds, and social media presence.

Need help implementing Domain Insights and Metrics API? View the integration guide for step-by-step instructions.

Domain Name Availability API

The Domain Name Availability API swiftly checks domain name availability, streamlining online presence management and securing the right virtual addresses. This API simplifies the process of selecting and securing domain names, which is crucial for establishing an online presence.

In a competitive digital landscape, finding an available domain name that aligns with your brand is often the first step to success. This API transforms the way users search for and manage domain names.

Key Features and Capabilities

• Check Domain: To use this feature, you must indicate the URL of a domain in the parameter. This feature allows users to check the availability of a domain name quickly.

Example Response:

{"status":"Available","timeElapsed":10}

This response indicates the availability status of the domain and the time taken to check, enabling users to make informed decisions about domain registration.

Frequently Asked Questions

Q: What are the sources of the data?
A: The data is sourced from a comprehensive database of registered domain names, ensuring users receive accurate and up-to-date availability information.

Want to try Domain Name Availability API? Check out the API documentation to get started.

Domain Suggestion API

The Domain Suggestion API is designed to help users generate domain name suggestions that are not only available but also fit their brand identity. This API simplifies the process of finding the perfect web address for websites, businesses, or personal projects.

By leveraging advanced algorithms and linguistic analysis, this API generates domain name suggestions that go beyond simple availability checks, ensuring that users find memorable and relevant domain names.

Key Features and Capabilities

• Generate Domain Name: To use this feature, you must specify a keyword in the parameter. The API returns a list of available domain names based on the provided keyword.

Example Response:

["ballkick.com"]

This response includes a list of suggested domain names that are available for registration, helping users to quickly secure their desired web address.

Frequently Asked Questions

Q: What are typical use cases for the Domain Suggestion API?
A: Common use cases include generating domain names for new websites, creating SEO-optimized URLs, and crafting memorable links for marketing campaigns.

Want to use Domain Suggestion API in production? Visit the developer docs for complete API reference.

Domain Search Availability API

The Domain Search Availability API is a comprehensive tool that allows users to check the availability of domain names. This API provides essential information about domain availability, expiration dates, pricing, and WHOIS data.

With this API, users can validate domain availability and explore various quality aspects of the domain, assisting them in making informed decisions about domain registration and management.

Key Features and Capabilities

• Search Domain: This feature allows users to check domain availability, including validation, expiration, prices, and quality aspects.

Example Response:

{"status":"OK","request_id":"4b1d2437-0ef3-4d43-98fa-1345eb2f58b9","data":{"domain":"example-domain-123.com","available":true,"register_price":"0","transfer_price":"12","renew_price":"12","currency":"USD"}}

This response provides detailed information about the domain's availability, registration price, and other relevant data, enabling users to make strategic decisions.

Frequently Asked Questions

Q: What types of information are available through the API?
A: The API provides information on domain availability, expiration dates, pricing, WHOIS data, and quality aspects such as SEO relevance and branding potential.

Want to use Domain Search Availability API in production? Visit the developer docs for complete API reference.

Daily Domain Detection API

The Daily Domain Detection API identifies phishing and squatting domains among newly registered ones, bolstering cybersecurity and trust online. This API serves as a vigilant sentinel against phishing and domain spoofing, which are serious cybersecurity issues.

By analyzing newly registered domain records, this API helps users detect potentially malicious domains that could exploit unsuspecting users.

Key Features and Capabilities

• Detect Fake Domains: To use this feature, you must indicate the name of a company in the parameter. The API analyzes newly registered domains for characteristics commonly associated with phishing and domain squatting.

Example Response:

{"response": "success", "keyword": "google", "count": 36, "domains": ["118924-google.com", "bestgoogleresults.com"]}

This response indicates the number of potentially malicious domains detected and provides a list of those domains, allowing users to take necessary actions to protect their brand.

Frequently Asked Questions

Q: What are the sources of the data?
A: The Daily Domain Detection API sources its data from newly registered domain records, analyzing them for phishing characteristics.

Want to try Daily Domain Detection API? Check out the API documentation to get started.

Referral Domain Checker API

The Referral Domain Checker API provides users with the ability to retrieve referral domains of a website, along with backlink counts and ranks. This API empowers users to gather essential information about a website's referral domains, enabling analysis and optimization of their online presence.

By leveraging this API, users can gain valuable insights into the sources of traffic and backlinks that contribute to a website's visibility and performance in search engine rankings.

Key Features and Capabilities

• Get Referral: This feature allows users to retrieve a comprehensive list of referral domains associated with a particular website, along with backlink counts.

Example Response:

{"referrers":[{"refdomain":"www.dealsourcing.co","backlinks":112121},{"refdomain":"www.thestartupfounder.com","backlinks":78997}]}

This response includes a list of referral domains and their respective backlink counts, providing insights into the sources of incoming traffic.

Frequently Asked Questions

Q: What parameters can be used with the endpoint?
A: The primary parameter for the endpoint is the domain name you wish to analyze, allowing users to customize their requests.

Ready to test Referral Domain Checker API? Try the API playground to experiment with requests.

Conclusion

In conclusion, the landscape of subdomain discovery APIs is rich with alternatives that cater to various needs and use cases. The Subdomain Explorer API and Subdomain Finder API excel in security and management, while the Domain Searcher API and Domain Suggestion API focus on domain availability and suggestions. For those concerned with cybersecurity, the Daily Domain Detection API is invaluable, while the Referral Domain Checker API provides insights into backlink strategies.

Ultimately, the best alternative depends on your specific needs—whether it's enhancing security, finding the perfect domain name, or analyzing referral traffic. By understanding the features and capabilities of these APIs, you can make informed decisions that align with your goals.