{"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."]}
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'
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.
| Header | Description |
|---|---|
Authorization
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Required
Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.
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No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.
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Trusted by leading companies
Website Due Diligence API generates comprehensive trust and quality reports for any website.
Perfect for investment due diligence, partnership vetting, lead qualification, and fraud detection.
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.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.
The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.
Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.
You can monitor your API usage through the response headers included with every request:
x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.
Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.
Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.
Please have a look at our Refund Policy: https://zylalabs.com/terms#refund