Lead Scorer

Score leads 0-100 by analyzing a domain's website, DNS, sitemap, and social presence. Uses customizable JSON scoring profiles so users can define what signals matter for their brand. Use when qualifying leads, prioritizing outreach lists, or evaluating potential partners. Supports single domains, multiple domains, and CSV batch mode.

Analyze a domain and return a 0-100 lead score with detailed breakdown. The key feature is customizable scoring profiles — JSON configs that define which signals matter and their weights.

How It Works

1. DNS Analysis — MX records (Google Workspace/M365 = real business), SPF/DMARC
2. Sitemap Parsing — URL count, last modified dates, content volume
3. Website Scraping — Blog detection, tech stack, meta tags, social links, contact info
4. Signal Scoring — Each signal scored against the profile weights
5. Grade Assignment — A (80-100), B (60-79), C (40-59), D (20-39), F (0-19)

Dependencies

bash

pip3 install dnspython

Usage

Single domain (default profile)

bash

python3 scripts/score_lead.py example.com

With custom profile

bash

python3 scripts/score_lead.py example.com --profile clearscope.json

Multiple domains

bash

python3 scripts/score_lead.py domain1.com domain2.com domain3.com

Batch from CSV

bash

python3 scripts/score_lead.py --csv leads.csv --domain-column "Website"

Options

• --profile FILE — Scoring profile JSON (default: default.json, resolved from scripts/profiles/)
• --csv FILE — CSV file with domains
• --domain-column NAME — Column name for domains in CSV (default: domain)
• --scrape-delay SECONDS — Delay between HTTP requests (default: 0.5)
• --output FILE — Write results to file instead of stdout

Output

JSON to stdout with overall score, per-signal breakdown, raw data, and summary:

json

{
  "domain": "example.com",
  "score": 72,
  "grade": "B",
  "profile": "default",
  "signals": {
    "has_blog": {"score": 20, "max": 20, "evidence": "Blog found at /blog; 234 URLs in sitemap"},
    "business_legitimacy": {"score": 15, "max": 20, "evidence": "MX: Google Workspace; SPF configured"}
  },
  "raw_data": {
    "sitemap_urls": 234,
    "mx_provider": "Google Workspace",
    "tech_stack": ["WordPress", "Cloudflare"]
  },
  "summary": "Strong in: has blog, business legitimacy. Good lead, worth pursuing."
}

Scoring Profiles

Profiles are the key differentiator. They let you define what matters for YOUR use case.

Profile format

json

{
  "name": "my-profile",
  "description": "What this profile scores for",
  "signals": {
    "signal_name": {
      "weight": 25,
      "description": "What this signal measures",
      "keywords": ["optional", "keyword", "list"]
    }
  }
}

Built-in signals

Signal	What it checks
has_blog	Blog/content section existence + sitemap volume
business_legitimacy	MX provider, SPF/DMARC, about page, meta tags
content_velocity	Sitemap dates — recency and frequency of updates
tech_stack	CMS, analytics, chat tools detected in page source
audience_size	Social media links (Twitter, LinkedIn, YouTube, Facebook)
contact_findability	Contact page, emails on site, LinkedIn link
seo_tools	Keyword matching in homepage text (requires keywords array)

Custom keyword signals

Any signal with a keywords array will match those terms against the homepage text. This is how you detect competitors, tools, or industry terms:

json

{
  "name": "crm-seller",
  "signals": {
    "uses_crm": {
      "weight": 30,
      "description": "Already uses a CRM",
      "keywords": ["salesforce", "hubspot", "pipedrive", "zoho crm", "close.io"]
    },
    "has_sales_team": {
      "weight": 25,
      "description": "Mentions sales roles or team",
      "keywords": ["sales team", "account executive", "sdr", "business development"]
    }
  }
}

Shipped profiles

• default.json — Generic scoring for any SaaS/content company
• clearscope.json — Example profile for SEO tool partnership leads

Create your own in scripts/profiles/ or pass any path with --profile.

Rate Limiting

The script is polite by default:

• --scrape-delay 0.5 — 500ms between HTTP requests (default)
• Each domain makes ~5-8 requests (homepage, blog, about, contact, sitemap, DNS)
• For batch mode, there's an additional delay between domains
• Increase delay for large batches: --scrape-delay 2
• All requests use a generic User-Agent string

Recommended delays

Batch size	Delay	Est. time
1-10	0.5s (default)	~30s-2min
10-50	1.0s	~5-15min
50+	2.0s	~30min+

Error Handling

If a signal can't be gathered (site down, DNS timeout, etc.), it scores 0 with an explanation in the evidence field. The script never crashes on a single domain failure — it logs the issue to stderr and continues.

Tips

• Start with default profile, review results, then customize
• Weights should sum to 100 for intuitive scoring (not required — auto-normalizes)
• Keywords are powerful — add competitor names, industry terms, technology mentions
• Pipe to jq for quick filtering: python3 scripts/score_lead.py domain.com | jq '.score'
• Batch + sort: Score a CSV, then sort by score to prioritize outreach