Email LinkedIn Lookup, Reverse Email Lookup & Domain Finder

seamless.ai, cognism, snov.io, Clearbit, Bulk Website Lookup & B2B Company Website Enricher. Extract emails, phone numbers, social profiles, and company metadata from domains.

---

1. Architecture & Extraction Pipeline

• Extraction Mechanism: Direct structured extraction pipeline for Email LinkedIn Lookup, Reverse Email Lookup & Domain Finder with flat JSON output schema and deterministic Pay-Per-Event billing.
• Proxy Overhead: None required for standard runs. Requests execute directly against structured JSON/SSR/API endpoints without headless Chromium spin-up delay.
• Output Normalization: Every extracted item is validated, deduplicated within the run window, and written as a flat JSON record to the default Apify Dataset (datasets/{defaultDatasetId}/items), allowing direct ingestion into PostgreSQL, BigQuery, Snowflake, n8n, Make, or Python/TypeScript ETL pipelines.
• Deterministic Execution: Prefilled default parameters allow immediate one-click verification via the Apify Console or synchronous REST execution (run-sync-get-dataset-items).

---

2. Verified Production Dataset Sample

The following JSON record was captured directly from a live production execution of vivid_astronaut/b2b-website-enricher on Apify Cloud:

[
  {
    "inputUrl": "apify.com",
    "finalUrl": "https://apify.com/",
    "httpStatus": 200,
    "companyName": "Apify",
    "metaDescription": "Thousands of tools to automate your business. Get real-time web data, track competitors, generate leads, and integrate your apps and AI agents.",
    "oneLineSummary": {
      "value": "Thousands of tools to automate your business. Get real-time web data, track competitors, generate leads, and integrate your apps and AI agents.",
      "status": "found_meta_description",
      "evidenceUrl": "https://apify.com/"
    },
    "whatTheySell": {
      "value": null,
      "status": "not_found",
      "evidenceUrl": null
    },
    "targetCustomer": {
      "value": null,
      "status": "not_found",
      "evidenceUrl": null
    },
    "industryTags": {
      "value": null,
      "status": "not_found",
      "evidenceUrl": null
    },
    "sizeSignals": {
      "careersPage": {
        "value": null,
        "status": "not_found",
        "evidenceUrl": null
      },
      "locationCount": {
        "value": null,
        "status": "not_found",
        "evidenceUrl": null
      },
      "yearsMentioned": {
        "value": null,
        "status": "not_found",
        "evidenceUrl": null
      }
    },
    "techStack": [
      {
        "name": "Next.js",
        "category": "Framework",
        "evidenceUrl": "https://apify.com/contact"
      },
      {
        "name": "HubSpot",
        "category": "CRM/marketing",
        "evidenceUrl": "https://apify.com/contact"
      },
      {
        "name": "Google Tag Manager",
        "category": "analytics",
        "evidenceUrl": "https://apify.com/contact"
      },
      {
        "name": "Google Analytics",
        "category": "analytics",
        "evidenceUrl": "https://apify.com/contact"
      },
      {
        "name": "Intercom",
        "category": "chat",
        "evidenceUrl": "https://apify.com/contact"
      }
    ],
    "contactPageUrl": "https://apify.com/",
    "publicEmails": [
      "hello@apify.com",
      "support@apify.com"
    ],
    "socialLinks": [
      "http://linkedin.com/company/apify/",
      "https://github.com/apify",
      "https://github.com/apify/crawlee",
      "https://www.linkedin.com/company/apify/",
      "https://www.tiktok.com/@apifyoffice",
      "https://www.tiktok.com/@apifytech",
      "https://www.youtube.com/apify",
      "https://x.com/apify"
    ],
    "languagesDetected": [
      "en"
    ],
    "lastUpdatedHint": null,
    "scrapedAt": "2026-10-29T07:42:43.782Z",
    "aiModelUsed": "deterministic_only",
    "aiTokenUsage": {
      "promptTokens": 0,
      "completionTokens": 0,
      "totalTokens": 0
    },
    "errors": [],
    "status": "success"
  },
  {
    "inputUrl": "github.com",
    "finalUrl": "https://github.com/",
    "httpStatus": 200,
    "companyName": "GitHub",
    "metaDescription": "Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.",
    "oneLineSummary": {
      "value": "Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.",
      "status": "found_meta_description",
      "evidenceUrl": "https://github.com/"
    },
    "whatTheySell": {
      "value": null,
      "status": "not_found",
      "evidenceUrl": null
    },
    "targetCustomer": {
      "value": null,
      "status": "not_found",
      "evidenceUrl": null
    },
    "industryTags": {
      "value": null,
      "status": "not_found",
      "evidenceUrl": null
    },
    "sizeSignals": {
      "careersPage": {
        "value": null,
        "status": "not_found",
        "evidenceUrl": null
      },
      "locationCount": {
        "value": null,
        "status": "not_found",
        "evidenceUrl": null
      },
      "yearsMentioned": {
        "value": null,
        "status": "not_found",
        "evidenceUrl": null
      }
    },
    "techStack": [],
    "contactPageUrl": "https://github.com/",
    "publicEmails": [],
    "socialLinks": [
      "https://cli.github.com/",
      "https://docs.github.com/",
      "https://docs.github.com/en",
      "https://docs.github.com/en/copilot/how-tos/copilot-on-github/customize-copilot/customize-copilot-overview",
      "https://docs.github.com/integrations/concepts/about-building-integrations",
      "https://docs.github.com/site-policy/github-terms/github-terms-of-service",
      "https://docs.github.com/site-policy/privacy-policies/github-general-privacy-statement",
      "https://github.com/",
      "https://github.com/AEPKILL/devtools-detector",
      "https://github.com/EvanLi/Github-Ranking",
      "https://github.com/Goochbeater/Spiritual-Spell-Red-Teaming",
      "https://github.com/Ko-kn3t/Ko-kn3t.github.io/commit/47b7c956c2dde17d4387082c0a98871f09ff8e5b",
      "https://github.com/LarsLrn/orcai/pull/162",
      "https://github.com/MemoryLeakersTeam/Documenti/pull/47",
      "https://github.com/Tuan-23880095/diemdanhsv/pull/99",
      "https://github.com/about",
      "https://github.com/about/diversity",
      "https://github.com/apps/desktop",
      "https://github.com/coollabsio/coolify",
      "https://github.com/customer-stories",
      "https://github.com/customer-stories/figma",
      "https://github.com/customer-stories/mercado-libre",
      "https://github.com/customer-stories/mercedes-benz",
      "https://github.com/customer-stories?type=enterprise",
      "https://github.com/education",
      "https://github.com/enterprise",
      "https://github.com/enterprise/premium-support",
      "https://github.com/enterprise/startups",
      "https://github.com/events/universe/recap?utm_source=homepage-eyebrow-banner-universe-recap&utm_medium=web&utm_campaign=universe-2026&locale=en-US",
      "https://github.com/f/prompts.chat",
      "https://github.com/farajfarook/paseo-ha-addon",
      "https://github.com/features",
      "https://github.com/features/actions",
      "https://github.com/features/ai",
      "https://github.com/features/code-quality",
      "https://github.com/features/codespaces",
      "https://github.com/features/copilot",
      "https://github.com/features/copilot/copilot-business",
      "https://github.com/features/copilot/plans",
      "https://github.com/get_started?with=enterprise",
      "https://github.com/git-guides",
      "https://github.com/github",
      "https://github.com/github-roadmap",
      "https://github.com/jellyfin/jellyfin",
      "https://github.com/lirantal/devrel-blog-utils/pull/98",
      "https://github.com/login",
      "https://github.com/mailcow/mailcow-dockerized",
      "https://github.com/marketplace",
      "https://github.com/mcp",
      "https://github.com/mobile",
      "https://github.com/nautechsystems/nautilus_trader",
      "https://github.com/newsletter",
      "https://github.com/nextcloud/all-in-one",
      "https://github.com/nordstjernen-web/southstar-browser/pull/155",
      "https://github.com/open-source/sponsors",
      "https://github.com/orgs/community/discussions",
      "https://github.com/oven-sh/bun",
      "https://github.com/partners",
      "https://github.com/platform",
      "https://github.com/pricing",
      "https://github.com/projectdiscovery/nuclei-templates",
      "https://github.com/red-cup-engineering/computer-documents-engineering-services-section/pull/5",
      "https://github.com/resources",
      "https://github.com/resources/articles/devops-tools-comparison",
      "https://github.com/resources/events",
      "https://github.com/rkchellah/MoMo-Sentry/commit/34f7d42cd8791fa200f087c5ef0e38d549456432",
      "https://github.com/saqibxiqbal-spec/SAQIIB-BOT/commit/5dbff8fb00aa3c73c811f8c63493a241d64118d2",
      "https://github.com/security/advanced-security",
      "https://github.com/security/advanced-security/code-security",
      "https://github.com/security/advanced-security/secret-protection",
      "https://github.com/services",
      "https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F&source=header-home",
      "https://github.com/sitemap",
      "https://github.com/solutions/executive-insights",
      "https://github.com/solutions/industry",
      "https://github.com/solutions/industry/financial-services",
      "https://github.com/solutions/industry/government",
      "https://github.com/solutions/industry/healthcare",
      "https://github.com/solutions/industry/manufacturing",
      "https://github.com/solutions/industry/nonprofits",
      "https://github.com/tailscale/tailscale",
      "https://github.com/team",
      "https://github.com/trending",
      "https://github.com/trust-center",
      "https://github.com/vitejs/vite",
      "https://github.com/why-github",
      "https://github.com/yt-dlp/yt-dlp",
      "https://help.github.com/",
      "https://help.github.com/request/landing",
      "https://learn.github.com/credentials",
      "https://learn.github.com/skills",
      "https://skills.github.com/",
      "https://socialimpact.github.com/",
      "https://support.github.com/?tags=dotcom-footer",
      "https://www.instagram.com/github",
      "https://www.linkedin.com/company/github",
      "https://www.tiktok.com/@github",
      "https://www.youtube.com/github",
      "https://x.com/github"
    ],
    "languagesDetected": [
      "en",
      "ja"
    ],
    "lastUpdatedHint": {
      "hint": "2026",
      "url": "https://github.com/"
    },
    "scrapedAt": "2026-10-29T07:42:45.981Z",
    "aiModelUsed": "deterministic_only",
    "aiTokenUsage": {
      "promptTokens": 0,
      "completionTokens": 0,
      "totalTokens": 0
    },
    "errors": [],
    "status": "success"
  }
]

---

3. Input Parameter Specification

Parameter	Type	Default	Technical Specification
websiteUrls	array	["apify.com", "github.com", "stripe.com", "cloudflare.com", "vercel.com", "linear.app", "supabase.com", "posthog.com"]	Public company website URLs or domains. One structured B2B intelligence record is produced per item.
maxPagesPerSite	integer	2	Starts at the supplied URL and follows same-site public links such as about, services, careers, and contact.
requestDelayMs	integer	1000	Minimum 1000 ms between same-site requests. 429 responses use exponential backoff.
language	string	"en"	Language used for optional AI-written fields.
enrichFields	array	["companyName", "metaDescription", "oneLineSummary", "whatTheySell", "targetCustomer", "industryTags", "sizeSignals", "techStack", "contactPageUrl", "publicEmails", "socialLinks", "languagesDetected", "lastUpdatedHint"]	Reserved for field selection in a future version. The current version returns all documented fields.
openAiApiKey	string	null	Optional: Bring your own API key to enable AI synthesis fields (whatTheySell, targetCustomer, industryTags). Without a key, deterministic HTML/meta/tech-stack/contact enrichment still runs in full.
openAiModel	string	"gpt-4o-mini"	Model name accepted by the configured OpenAI-compatible endpoint.
openAiBaseUrl	string	"https://api.openai.com/v1"	Optional endpoint base URL. Defaults to https://api.openai.com/v1.

Example Input Payload (application/json)

{
  "websiteUrls": [
    "apify.com",
    "github.com",
    "stripe.com",
    "cloudflare.com",
    "vercel.com",
    "linear.app",
    "supabase.com",
    "posthog.com"
  ],
  "maxPagesPerSite": 2,
  "requestDelayMs": 1000,
  "language": "en",
  "enrichFields": [
    "companyName",
    "metaDescription",
    "oneLineSummary",
    "whatTheySell",
    "targetCustomer",
    "industryTags",
    "sizeSignals",
    "techStack",
    "contactPageUrl",
    "publicEmails",
    "socialLinks",
    "languagesDetected",
    "lastUpdatedHint"
  ],
  "openAiModel": "gpt-4o-mini",
  "openAiBaseUrl": "https://api.openai.com/v1"
}

---

4. Measured Runtime & Unit Economics

Metric	Measured Value	Notes
Container Memory Allocation	256 MB	Lightweight Node.js 20 container (apify@^3.2.6)
Median Execution Latency	38.39 s	Cold start to dataset commit for default batch
External Proxy Requirement	$0.00	No residential proxy bandwidth surcharge required
Primary Billing Event	website-enriched	Charged strictly per committed dataset record
Unit Price (Pay-Per-Event)	$0.0050 / record	Equivalent to $5.00 per 1,000 records

---

5. Production Integration (cURL, Python, Claude Code MCP)

5.1 Synchronous REST Execution (cURL)

Run the Actor synchronously and return the extracted JSON dataset array in a single HTTP request:

curl -s -X POST \
  "https://api.apify.com/v2/acts/vivid_astronaut~b2b-website-enricher/run-sync-get-dataset-items?token=YOUR_APIFY_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"websiteUrls": ["apify.com", "github.com", "stripe.com", "cloudflare.com", "vercel.com", "linear.app", "supabase.com", "posthog.com"], "maxPagesPerSite": 2, "requestDelayMs": 1000, "language": "en", "enrichFields": ["companyName", "metaDescription", "oneLineSummary", "whatTheySell", "targetCustomer", "industryTags", "sizeSignals", "techStack", "contactPageUrl", "publicEmails", "socialLinks", "languagesDetected", "lastUpdatedHint"], "openAiModel": "gpt-4o-mini", "openAiBaseUrl": "https://api.openai.com/v1"}'

5.2 Python Pipeline Integration (urllib.request)

import json
import os
import urllib.request

APIFY_TOKEN = os.environ["APIFY_TOKEN"]
url = (
    "https://api.apify.com/v2/acts/vivid_astronaut~b2b-website-enricher/"
    f"run-sync-get-dataset-items?token={APIFY_TOKEN}"
)
payload = {
  "websiteUrls": [
    "apify.com",
    "github.com",
    "stripe.com",
    "cloudflare.com",
    "vercel.com",
    "linear.app",
    "supabase.com",
    "posthog.com"
  ],
  "maxPagesPerSite": 2,
  "requestDelayMs": 1000,
  "language": "en",
  "enrichFields": [
    "companyName",
    "metaDescription",
    "oneLineSummary",
    "whatTheySell",
    "targetCustomer",
    "industryTags",
    "sizeSignals",
    "techStack",
    "contactPageUrl",
    "publicEmails",
    "socialLinks",
    "languagesDetected",
    "lastUpdatedHint"
  ],
  "openAiModel": "gpt-4o-mini",
  "openAiBaseUrl": "https://api.openai.com/v1"
}

req = urllib.request.Request(
    url,
    data=json.dumps(payload).encode("utf-8"),
    headers={"Content-Type": "application/json"},
    method="POST",
)
with urllib.request.urlopen(req, timeout=120) as resp:
    records = json.loads(resp.read().decode("utf-8"))
    print(f"Extracted {len(records)} records from b2b-website-enricher")

5.3 Claude Code / Cursor MCP Configuration (.mcp.json)

Expose vivid_astronaut/b2b-website-enricher as a callable tool inside Claude Code, Cursor, or any Model Context Protocol client:

{
  "mcpServers": {
    "apify-b2b-website-enricher": {
      "command": "npx",
      "args": [
        "-y",
        "@apify/actors-mcp-server",
        "--actors",
        "vivid_astronaut/b2b-website-enricher"
      ],
      "env": {
        "APIFY_TOKEN": "YOUR_APIFY_TOKEN"
      }
    }
  }
}