Web Scraper

Extract structured data from websites using BeautifulSoup and requests - turn any webpage into usable data.

When to Use This Skill

• Competitor research - Scrape pricing, features, positioning

• Lead generation - Extract contact info from directories

• Content audit - Pull headings, links, meta data

• Price monitoring - Track competitor pricing changes

• Data collection - Gather research data from multiple sources

What Claude Does vs What You Decide

Claude Does You Decide

Structures analysis frameworks Strategic priorities

Synthesizes market data Competitive positioning

Identifies opportunities Resource allocation

Creates strategic options Final strategy selection

Suggests implementation approaches Execution decisions

Dependencies

pip install beautifulsoup4 requests pandas click lxml

Commands

Scrape Elements

python scripts/main.py scrape https://example.com --selector "h1,h2,p" python scripts/main.py scrape https://example.com --selector ".product-price"

Extract Links

python scripts/main.py links https://example.com python scripts/main.py links https://example.com --internal-only

Extract Emails

python scripts/main.py emails https://example.com python scripts/main.py emails https://example.com --depth 2

Extract Structured Data

python scripts/main.py structured https://example.com/article --schema article python scripts/main.py structured https://example.com/product --schema product

Examples

Example 1: Scrape Competitor Pricing

python scripts/main.py scrape https://competitor.com/pricing --selector ".price,.plan-name"

Output:

Extracted 6 elements

1. Starter - $29/mo

2. Pro - $99/mo

3. Enterprise - Contact us

Example 2: Extract Article Content

python scripts/main.py structured https://blog.example.com/post --schema article

Output: article_data.json

{

"title": "How to Scale Your Startup",

"author": "Jane Doe",

"date": "2024-01-15",

"content": "...",

"word_count": 1523

}

CSS Selector Reference

Selector Description Example

tag

Element type h1 , p , div

.class

Class name .price , .title

#id

Element ID #main-content

tag.class

Tag with class div.product

tag[attr]

Has attribute a[href]

parent > child

Direct child ul > li

tag1, tag2

Multiple h1, h2, h3

Ethical Scraping Guidelines

• Check robots.txt - Respect site's scraping policy

• Rate limit - Don't overload servers (1-2 req/sec)

• Identify yourself - Use descriptive User-Agent

• Cache requests - Don't re-scrape unchanged pages

• Terms of Service - Check if scraping is allowed

Skill Boundaries

What This Skill Does Well

• Structuring strategic analysis

• Identifying market opportunities

• Creating strategic frameworks

• Synthesizing competitive data

What This Skill Cannot Do

• Replace market research

• Guarantee strategic success

• Know proprietary competitor info

• Make executive decisions

Related Skills

• competitor-monitor - Monitor competitor changes

• pdf-extractor - Extract from PDFs

Skill Metadata

• Mode: centaur

category: automation subcategory: data-extraction dependencies: [beautifulsoup4, requests, pandas] difficulty: intermediate time_saved: 5+ hours/week