Subdomain Finder Professional

Overview

Professional subdomain discovery using open-source methods with export options.

SEO Guide for Subdomain Finder Professional This guide shows how to use the extension for SEO research, content governance, and technical audits. It focuses on lawful, passive discovery and safe validation. When to Use It - Site audits and migration prep - Detecting duplicate or thin content across subdomains - Mapping local or product subdomains - Monitoring brand and property sprawl Typical SEO Questions Answered - Which subdomains are live and should be indexed? - Are there forgotten hosts with legacy content? - Are staging or dev subdomains exposed to search? - Which hosts should be consolidated or redirected? 1. Start with passive sources only. 2. Export CSV and sort by subdomain pattern. 3. Validate DNS and HTTP to confirm live hosts. 4. Audit indexability and content quality per host. 5. Build a consolidation or redirect plan. - DNS OK + HTTP OK: likely active and reachable. - DNS OK + HTTP OPAQUE: reachable but response is blocked by browser policy. - DNS OK + HTTP empty: likely live but not responding on HTTPS. - DNS NO + HTTP empty: likely inactive or misconfigured. Export Formats CSV Columns - subdomain - dns - http - source

0 out of 5
No ratings
Learn more about results and reviews.

Details

Version
1.0.0
Updated
February 11, 2026
Flag concern
Offered by
imranniaz-dev
Size
13.18KiB
Languages
English
Developer
Email
mhussain.programmer@gmail.com
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

Subdomain Finder Professional has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Subdomain Finder Professional handles the following:

Web history

User activity

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

Support

AutoDNS | Domain Check & SEO Data

4.2

Get domain and site data & find similiar available domains

Mine.Organic: SEO Vision: Page Audit, Meta & Keyword Checker

5.0

One-click SEO audit: analyze meta tags, H1-H6, keywords, and technical SEO. Includes Page Score, schema validation, and CSV export.

SEO Website Audit Tool

0.0

Free SEO Analysis for your website. Use our simple but comprehensive SEO audit tool to find the gaps in your website's SEO.

DNS Lookup

3.7

Lookup DNS records for any domain name

Google Rank Checker

5.0

Check and track Google SERP rankings for any website directly from Chrome, with options to export and copy results.

Keyword Explorer

5.0

Uncover valuable keywords & optimize content for SEO! Use Keyword Explorer, the powerful Chrome extension

DomainTyper - Domain Search

5.0

Search for your Domain as fast as you can type. Instant Domain Name Search.

PrivacyRedirect+

5.0

Automatically redirects visits from known platforms to open-source, privacy-friendly alternatives via farside.link.

DA PA Checker

4.7

Check Domain Authority, Page Authority, Spam Score & Domain Rating with history tracking using FREE DA PA Checker SEO toolbar.

Webscrab

5.0

Professional OSINT toolkit for image, text, domain and archive intelligence.

OnPage.dev - Web Scraper Extension

0.0

Professional web scraping tool with element selection and data export capabilities

SEO-tools

4.6

SEO-tools - информация о доменах, аудит сайтов на SEO ошибки, а также технический аудит любой страницы. Свыше 100 онлайн сервисов