Website Due Diligence API

API ID 12319

Get a comprehensive trust and quality report for any website. Analyzes DNS health, SSL certificates, security headers, content quality, performance indicators, and overall trust score.

371 ms avg response

API Documentation

Endpoints

Request

Generates a comprehensive due diligence report for the given website.

Endpoint ID: 23146
GET https://pr213-testing.zylalabs.com/api/12319/website+due+diligence+api/23146/generate+due+diligence+report
INPUT PARAMETERS

Generate Due Diligence Report — Endpoint Features

Object Description
url Required The website URL to analyze

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

url
API EXAMPLE RESPONSE
JSON
{"url":"https://www.google.com","timestamp":"2026-04-09T15:30:36.836Z","summary":{"score":24,"grade":"E","trustLevel":"LOW","highlights":["Valid SSL/HTTPS","Missing HSTS header","Missing privacy policy","Missing terms of service"],"domain":"www.google.com"},"domainAge":null,"dns":{"hasARecord":true,"hasAaaaRecord":true,"hasMxRecord":false,"nameservers":[],"provider":null},"ssl":{"hasHttps":true,"hasHsts":false,"redirectsToHttps":false},"securityHeaders":{"score":0,"maxScore":6,"headers":{}},"content":{"title":null,"description":null,"language":null,"hasStructuredData":false,"structuredDataTypes":[],"hasFavicon":false},"trust":{"hasPrivacyPolicy":false,"hasTermsOfService":false,"hasContactInfo":false,"contactEmails":[],"hasCopyright":false,"socialLinks":{"twitter":null,"linkedin":null,"facebook":null,"instagram":null,"github":null,"youtube":null}},"technical":{"hasRobotsTxt":true,"hasSitemap":true,"serverHeader":null,"poweredBy":null},"recommendations":["Add Strict-Transport-Security header to enforce HTTPS connections.","Configure HTTP to HTTPS redirect to ensure all traffic is encrypted.","Add a <title> tag to improve SEO and user experience.","Add a meta description to improve search result appearance.","Add a lang attribute to the <html> tag for accessibility and SEO.","Add Schema.org structured data (JSON-LD) to enhance search result features.","Add a favicon to improve brand recognition and browser tab appearance.","Add a privacy policy page to build user trust and comply with regulations (GDPR, CCPA).","Add terms of service to clarify usage rules and protect against liability.","Add contact information (email, phone, or contact page) to build trust.","Add a copyright notice to establish content ownership.","Add social media links to increase credibility and engagement."]}
Generate Due Diligence Report — CODE SNIPPETS

curl --location --request GET 'https://pr213-testing.zylalabs.com/api/12319/website+due+diligence+api/23146/generate+due+diligence+report?url=https://www.google.com' --header 'Authorization: Bearer YOUR_API_KEY' 


    

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Website Due Diligence API simply include your bearer token in the Authorization header.

Headers
Header Description
Authorization Required Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

Simple Transparent Pricing

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🚀 Enterprise Plan
Custom Volume

  • Custom Rate Limit
  • Team & Access Management
  • SLA-backed Uptime
  • Specialized Customer Support
  • Real-Time API Monitoring
  • Enterprise Security & Compliance
Minimum annual contract: USD 10,000

Trusted by leading companies

Website Due Diligence API generates comprehensive trust and quality reports for any website.

  • DNS health and configuration analysis
  • SSL certificate validation and details
  • Security headers assessment
  • Content quality indicators
  • Performance metrics
  • Overall trust score with detailed breakdown

Perfect for investment due diligence, partnership vetting, lead qualification, and fraud detection.

Website Due Diligence API FAQs

The Website Due Diligence API provides data on domain registration details, SSL certificate status, hosting provider information, technology stack detection, social media presence, business legitimacy indicators, and an overall trust score.

The API typically returns data in JSON format, which is structured and easy to parse for integration into various applications.

The API can be used for investment due diligence, partnership vetting, lead qualification, and fraud detection, helping users assess the legitimacy and reliability of a website.

The reports include fields such as domain registration details, SSL certificate issuer and status, hosting provider and location, detected technology stack, social media presence metrics, business legitimacy indicators, and an overall trust score.

Businesses can integrate the API into their existing systems by making requests to retrieve website intelligence data, which can then be used to inform decision-making processes related to investments, partnerships, and risk assessments.

The "Generate Due Diligence Report" endpoint returns a comprehensive analysis of a website, including DNS health, SSL certificate status, security headers, content quality, performance metrics, and an overall trust score.

Key fields in the response include "url," "timestamp," "summary" (with score, grade, and trust level), "dns," "ssl," "securityHeaders," "content," "trust," and "technical" details, along with "recommendations" for improvement.

The response data is structured in a JSON format, organized into sections such as "summary," "dns," "ssl," "securityHeaders," "content," "trust," and "technical," allowing for easy parsing and integration.

The endpoint provides information on DNS configuration, SSL certificate validation, security headers, content quality indicators, performance metrics, and an overall trust score, offering a holistic view of the website's reliability.

Users can customize their requests by specifying the target website URL in the API call. Additional parameters may be supported in future versions to refine the analysis, but currently, the primary input is the website URL.

The data is sourced from various public and proprietary databases, including DNS records, SSL certificate authorities, and web crawlers that assess website content and security features, ensuring a comprehensive analysis.

Data accuracy is maintained through regular updates and validation checks against authoritative sources, ensuring that the information provided reflects the current status of the website being analyzed.

Typical use cases include assessing website trustworthiness for investments, vetting potential business partners, qualifying leads, and detecting fraudulent websites, helping users make informed decisions.

General FAQs

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