On-Domain Event Fields

Complete reference for every field returned by the On-Domain Events API. Resolved events return up to 132 fields across contact, company, demographic, and behavioral categories.

Field Availability

When a visitor is resolved (identified), events are enriched with contact and company data from our identity graph. When a visitor is unresolved, only the core event fields are present.

Use has_valuable_data=true to filter to only enriched events with actionable contact or company data.

Core Event Fields

Present on every event, resolved or not.

Network and Page Fields

Raw request data captured with every event.

event_data Example

{
  "url": "https://www.yoursite.com/pricing",
  "title": "Pricing - Your Company",
  "timestamp": "2026-02-19T16:30:36.687Z",
  "referrer": "https://www.yoursite.com/",
  "screen": { "height": 800, "width": 1280 },
  "viewport": { "height": 592, "width": 1280 }
}

Identity Fields

Email hashes used for identity matching. Available on all resolved events.

Email Hashes

Multiple hash algorithms and case variants are available for matching against your own data:

Additional Elixir-sourced hashes (from the identity graph) are available with the emails_ prefix: emails_md5_lc_hem, emails_sha1_lc_hem, emails_sha256_lc_hem, and their _uc_ variants.

Person Fields

Contact-level data from the identity graph. Only populated on resolved events.

Name

Email

Email Validation

Phone Numbers

All phone fields use E.164 format (e.g., +15551234567). Multiple numbers are comma-separated. Each phone field has a matching DNC (Do Not Call) field with positionally-aligned y/n values.

DNC alignment example:

phones: "+15551234567, +15559876543"
phones_dnc: "n, y"

The first number is not on the DNC list; the second is.

Professional Profile

education_history Example

{
  "name": "Stanford University",
  "url": "https://www.linkedin.com/school/stanford-university",
  "extraction_order": 0,
  "extraction_date": "2025-05-04T16:41:23Z"
}

Social Profiles

Personal Address

Demographics

Company Fields

Firmographic data from the identity graph. Only populated on resolved events.

All Selectable Fields

Use these with the select parameter to return only the fields you need. Pass as a comma-separated list:

GET /api/v1/events?...&select=first_name,last_name,email,company_name,job_title

event_id, pixel_id, organization_id, event_type, timestamp, ts_millis, cookie_id, hem,
hems, user_agent, client_ip, ip, event_data, headers, referrer_url, extra_json, resolved,
address_id, age_range, business_emails, company_address, company_address2, company_city,
company_country, company_description, company_domain, company_employee_count,
company_employee_count_range, company_id, company_id_right, company_industry,
company_linkedin_url, company_naics, company_name, company_name_history, company_phones,
company_phones_dnc, company_related_domains, company_revenue_range, company_sic,
company_state, company_total_revenue, company_zip_code, current_business_email,
current_business_email_validation_date, current_business_email_validation_status,
department, department_2, department_raw, direct_numbers, direct_numbers_dnc, domain_lc,
dpv_code, education_history, email, email_last_seen, email_validation_status, emails,
emails_md5_lc_hem, emails_md5_uc_hem, emails_sha1_lc_hem, emails_sha1_uc_hem,
emails_sha256_lc_hem, emails_sha256_uc_hem, first_name, first_uuid_norm, flattened_uuids,
gender, has_children, headline, income_range_lc, inferred_gender, inferred_gender_unisex,
inferred_years_experience, invalid_emails, is_email_business, is_email_personal,
is_homeowner, is_international, is_married, is_profile_b2b, is_profile_b2c, job_functions,
job_title, job_title_history, job_title_normalized, last_name, last_updated, linkedin_url,
md5_lc_hem, md5_uc_hem, middle_name, mobile_phones, mobile_phones_dnc,
mobile_phones_validation_date, mobile_phones_validation_status, net_worth,
personal_address, personal_address_2, personal_city, personal_country,
personal_country_alpha2, personal_country_alpha3, personal_country_numeric,
personal_email, personal_email_validation_status, personal_emails, personal_phones,
personal_phones_dnc, personal_state, personal_state_code, personal_timezone, personal_zip,
personal_zip4, phones, phones_dnc, photo_url, primary_contact_emails, profile_pid_all,
seniority_level, seniority_level_2, seniority_level_raw, sha1_lc_hem, sha1_uc_hem,
sha256_lc_hem, sha256_uc_hem, social_connections, subdepartments, valid_emails, twitter_url,
github_url, facebook_url, job_title_normalized

Data Formatting Notes

• Text fields are lowercase. Names and most string values are stored in lowercase.
• Geographic fields are title-cased by the API. personal_city, personal_state, personal_country, and similar address fields are stored lowercase but returned title-cased (e.g., New York, United States). When filtering, the API matches case-insensitively.
• Boolean-like values are strings. Fields like has_children, is_homeowner, and is_married return "y" / "n" (not true / false). is_email_business and is_email_personal return "true" / "false".
• JSON fields are stringified. event_data, headers, and education_history are JSON encoded as strings. Parse them in your application.
• Null fields are omitted. If a field has no value for a given event, it is not included in the response object. Your code should handle missing keys.
• Dates use ISO 8601. Timestamps include microseconds: 2026-02-19T16:30:36.763024Z. Date-only fields use YYYY-MM-DD.

Common Select Recipes

Lead List (Contact + Company Basics)

select=first_name,last_name,email,current_business_email,job_title,seniority_level,company_name,company_domain,company_industry,linkedin_url

Account Identification (Company Only)

select=company_name,company_domain,company_industry,company_employee_count_range,company_revenue_range,company_city,company_state

Full Contact Export

select=first_name,last_name,email,personal_email,current_business_email,job_title,job_title_normalized,department,seniority_level,company_name,company_domain,company_industry,company_employee_count_range,phones,direct_numbers,mobile_phones,linkedin_url,personal_city,personal_state,personal_country

Privacy-Safe (Hashed Only)

select=hem,md5_lc_hem,sha256_lc_hem,company_name,company_domain,company_industry,seniority_level,department

Related

• On-Domain Events API -- Query events, filter, paginate, and deduplicate
• Field Catalog API -- Audience builder field metadata with picklist values
• Export Events to CSV -- Paginate and export to CSV
• Building Audience Filters -- Use fields in audience filter rules