DFY Hub

Domain Intelligence

5 tools

Technology detection, WHOIS data, domain-by-technology lookups, HTML term search, and technology market stats.

Domain Technology Stack
3 credits per call

Detect the complete technology stack used by any website.

Identifies the technologies used by a domain including CMS, frameworks, analytics tools, advertising platforms, hosting providers, CDNs, payment processors, and more. Returns categorized technology detections with confidence levels.

Use cases

  • •Research competitor tech stacks to understand their capabilities
  • •Identify which CMS, analytics, and marketing tools competitors use
  • •Find potential customers by technology (e.g., all sites using WordPress)
  • •Audit your own site's technology footprint for security or consolidation
  • •Validate whether competitors use specific tools they claim to use

Data returned

technology_namecategoryversionconfidencefirst_detectedlast_detected

Example prompts

“What technology stack does competitor.com use?”

“Does competitor.com use Google Analytics, HubSpot, or Salesforce?”

“Show me the full tech stack for shopify.com”

Tips

  • Check competitor analytics and marketing tools — it reveals their measurement and marketing strategy
  • Use domain_domains_by_technology to find other sites using the same tools
WHOIS Domain Information
2 credits per call

Look up domain registration, expiration, and ownership details via WHOIS.

Returns WHOIS registration data for a domain including registrar, registration date, expiration date, nameservers, registrant information (when not privacy-protected), and domain status codes. Useful for domain research and due diligence.

Use cases

  • •Research domain age — older domains often carry more authority
  • •Check domain expiration dates for expired domain acquisition
  • •Verify domain ownership for due diligence on partners or vendors
  • •Find registrar information for domain transfer or dispute purposes

Data returned

domainregistrarcreation_dateexpiration_dateupdated_datenameserversstatusregistrant

Example prompts

“When was competitor.com registered and when does it expire?”

“Look up WHOIS info for this domain: [domain]”

“How old is this domain and who is the registrar?”

Tips

  • Domain age is a weak ranking factor but useful for trust assessment — very new domains may face a "sandbox" period
  • Check expiration dates on competitor domains — expiring domains sometimes become available for purchase
Domains Using a Technology
5 credits per call

Find all domains that use a specific technology (CMS, analytics, etc.).

Returns a list of domains that use a specified technology (e.g., WordPress, Shopify, HubSpot, Google Analytics). Includes domain rank, traffic estimates, and technology details. Powerful for lead generation, market sizing, and competitive landscape mapping.

Use cases

  • •Build lead lists of companies using specific technologies (prospecting for SaaS companies)
  • •Size the market for a technology — how many sites use WordPress, Shopify, etc.
  • •Research migration targets — find sites on outdated platforms
  • •Identify potential integration partners by technology stack

Data returned

domainrankorganic_traffictechnology_namecategorycountry

Example prompts

“Find domains that use Shopify and have significant organic traffic”

“How many websites use HubSpot CRM?”

“List high-traffic domains that run WordPress”

Tips

  • Combine with traffic filters to find only commercially significant websites using a technology
  • Use for B2B prospecting — find companies using a competitor's tool and pitch your alternative
Domains by HTML Terms
5 credits per call

Find domains containing specific HTML terms, meta tags, or code patterns.

Returns domains whose HTML source code contains specific terms, patterns, or meta tag values. Searches within page source, meta tags, headers, and structured data. A powerful prospecting tool for finding sites with specific code implementations.

Use cases

  • •Find websites mentioning specific brands, products, or services in their HTML
  • •Discover sites using specific meta tag patterns or schema markup
  • •Research sites with specific analytics or tracking code implementations
  • •Build prospect lists based on on-page content signals

Data returned

domainranktitledescriptionorganic_trafficmatch_context

Example prompts

“Find domains with "powered by Squarespace" in their HTML”

“Which sites have schema markup for "LocalBusiness" type?”

“Show me domains mentioning "affiliate program" in their meta tags”

Tips

  • Use specific, unique terms for better precision — generic terms will return too many results
  • Combine with domain_technologies for a more complete picture of found domains
Technology Usage Statistics
3 credits per call

Get market share and adoption statistics for any web technology.

Returns usage statistics and market share data for web technologies. Shows adoption trends, market share percentages, top domains using the technology, and category breakdowns. Useful for market research and technology trend analysis.

Use cases

  • •Research CMS market share (WordPress vs Shopify vs Wix)
  • •Track technology adoption trends for market reports
  • •Evaluate technology maturity before adopting for your own stack
  • •Benchmark technology choices against industry norms

Data returned

technology_nametotal_domainsmarket_sharecategorytop_countriestrend

Example prompts

“What's the market share of WordPress vs Shopify vs Squarespace?”

“Show me adoption statistics for Tailwind CSS”

“How many sites use React vs Vue vs Angular?”

Tips

  • Compare multiple technologies in the same category to understand the competitive landscape
  • Look at the trend direction — growing technologies may offer more community support and updates

Workflow guides using domain intelligence tools

Complete Competitor SEO Analysis

Full teardown of a competitor's SEO presence: organic traffic, keyword portfolio, backlink authority, and on-page optimization. Use this to understand exactly how a competitor is winning in search and where they're vulnerable.

26-31 creditsbeginner

Technical and Content Site Audit

Evaluate a website's technical health, content quality, and search authority. Combines on-page analysis, technology detection, backlink assessment, and organic performance to produce a holistic site health report.

22-27 creditsintermediate

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