Vendor Trust Snapshot API API ID: 12508

Instantly assess the trustworthiness of any vendor domain. Returns a scored JSON report covering domain age, email authentication, HTTPS, security signals, legal pages, and support availability — in a single API call.
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Every time a company onboards a new vendor, evaluates a supplier, or vets a potential partner, someone has to manually check a dozen different signals — domain age, email security records, SSL, legal pages, support availability, and more. That process is slow, inconsistent, and often skipped entirely.

The Vendor Trust Snapshot API automates all of it in a single call.

Send any domain and get back a structured JSON trust report with an overall score from 0 to 100, covering 13 individual signals across five categories.

WHAT IT CHECKS:

Domain Intelligence:
- Domain age in days and original registration date
- Sourced from public RDAP data

Email Authentication:
- SPF record presence and validity
- DMARC policy detection
- DKIM configuration check

Security Signals:
- HTTPS and SSL certificate validation
- security.txt file presence
- Trust center page detection

Legal Pages:
- Privacy policy detection
- Terms of service detection
- Cookie policy detection
- Refund/returns policy detection

Support Availability:
- Status page detection
- Contact page detection
- Support/help page detection
- Support email extraction

TRUST SCORE:
Every response includes a weighted trust_score from 0 to 100 and a trust_level label: low, moderate, high, or very high. Scores are calculated from all 13 signals using weighted criteria so you can rank and filter vendors programmatically.

WHO THIS IS FOR:
- Procurement teams automating vendor evaluation workflows
- Fintech and payment platforms vetting merchants before onboarding
- B2B marketplaces verifying seller legitimacy
- Compliance tools building automated vendor risk reports
- Developers building internal vendor dashboards or scoring tools

No manual research. No multiple tools. One domain in, one trust report out.

API Documentation

Endpoints


Accepts a domain name and returns a full vendor trust report covering 13 signals across five categories: domain age, email authentication (SPF, DMARC, DKIM), security signals (HTTPS, security.txt, trust center), legal page detection (privacy policy, terms, cookies, refund), and support availability (status page, contact, support email). Returns a weighted trust score from 0 to 100 and a trust level label.



                                                                            
GET https://pr189-testing.zylalabs.com/api/12508/vendor+trust+snapshot+api/23808/check
                                                                            
                                                                        

check - Endpoint Features

Object Description
domain [Required]

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

domain

API EXAMPLE RESPONSE

{"success":true,"domain":"stripe.com","checked_at":"2026-05-05T17:32:39.136Z","trust_score":92,"trust_level":"very high","domain_info":{"domain_age_days":11193,"domain_registered_date":"1995-09-12T04:00:00.000Z"},"email_auth":{"spf":true,"dmarc":true,"dkim":true},"security":{"https_enabled":true,"ssl_valid":true,"has_security_txt":false,"has_trust_center":true},"legal":{"has_privacy_policy":true,"has_terms_of_service":true,"has_cookie_policy":true,"has_refund_policy":false},"support":{"has_status_page":true,"has_contact_page":true,"has_support_page":true,"support_email":null},"signals_summary":{"total_signals_checked":13,"signals_passed":11,"signals_failed":2}}

Check - CODE SNIPPETS


curl --location --request GET 'https://zylalabs.com/api/12508/vendor+trust+snapshot+api/23808/check&domain=Required' --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 Vendor Trust Snapshot 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

No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.

🚀 Enterprise

Starts at
$ 10,000/Year


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Customer favorite features

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  • ✔︎ Comprehensive Error Handling
  • ✔︎ Developer-Friendly Docs
  • ✔︎ Postman Integration
  • ✔︎ Secure HTTPS Connections
  • ✔︎ Reliable Uptime

Vendor Trust Snapshot API FAQs

The API returns a comprehensive trust report for a given domain, including a trust score (0-100) and a trust level label. It covers 13 signals across five categories: domain intelligence, email authentication, security signals, legal pages, and support availability.

Key fields include `trust_score`, `trust_level`, `domain_info` (with `domain_age_days` and `domain_registered_date`), `email_auth`, `security`, `legal`, and `support`. Each category provides specific details about the vendor's trustworthiness.

The response is structured in JSON format, with a top-level object containing success status, domain checked, and a detailed breakdown of trust signals. Each category (domain, email, security, legal, support) is nested within the response for clarity.

The API provides information on domain age, email authentication (SPF, DMARC, DKIM), security features (HTTPS, SSL), legal compliance (privacy policy, terms of service), and support availability (contact pages, support emails).

Data accuracy is maintained through the use of public RDAP data for domain information and automated checks for email authentication and security signals. Regular updates and validation processes ensure the reliability of the information provided.

Typical use cases include procurement teams automating vendor evaluations, fintech platforms vetting merchants, B2B marketplaces verifying sellers, and compliance tools generating vendor risk reports, all benefiting from streamlined assessments.

Users can leverage the trust score and level to rank vendors programmatically, filter out low-trust options, and make informed decisions based on the detailed signals provided in the report, enhancing vendor management processes.

Users can expect a consistent structure in responses, with trust scores reflecting the cumulative assessment of signals. Common patterns include high scores for established domains with strong email and security practices, while newer or less compliant domains may score lower.

General FAQs

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.

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The free trial lasts for 7 days and allows you to make up to 50 API requests.

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API calls are deducted from your plan based on successful requests. Each plan comes with a specific number of calls that you can make per month. Only successful calls, indicated by a Status 200 response, will be counted against your total. This ensures that failed or incomplete requests do not impact your monthly quota.
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