Specialized Applications

Web Crawlers & Scrapers

Build ethical web scraping tools for data collection and market research. Includes crawler configuration, rate limiting, proxy rotation, HTML parsing, data cleaning, and storage with scheduling capabilities for regular data updates.

Complexity: Medium 8-13 effort units 2-3 weeks

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Project Milestone & Feature Breakdown

3

Project Milestones

7

Features

13

Total Effort Units

1

Crawler Infrastructure

Set up scraping framework with rate limiting and proxy support

5 pts 1 week 3 Features

Scraping Framework Setup

2 pts Simple

Configure Scrapy, Puppeteer, or Playwright for crawling

Rate Limiting

2 pts Simple

Implement respectful rate limiting and delays

Proxy Rotation

1 pts Simple

Set up proxy rotation to avoid IP blocks

Deliverables

Crawler framework
Rate limiting
Proxy configuration

2

Data Extraction & Parsing

Extract and parse structured data from web pages

5 pts 1 week 2 Features

HTML Parsing

3 pts Medium

Extract data using CSS selectors or XPath

Data Normalization

2 pts Simple

Clean and normalize extracted data

Deliverables

Parsing logic
Data extractors
Normalization scripts

3

Storage & Scheduling

Store scraped data and schedule regular updates

3 pts 3-5 days 2 Features

Data Storage

2 pts Simple

Store data in database or files

Job Scheduling

1 pts Simple

Schedule crawls with cron or task queue

Deliverables

Data storage
Scheduling system
Change detection

Technical Stack

Scrapy/Puppeteer Beautiful Soup Selenium Playwright PostgreSQL/MongoDB Redis Celery

Key Considerations

Respecting robots.txt and website terms of service

Rate limiting to avoid overwhelming servers

Handling dynamic content (JavaScript rendering)

IP rotation to avoid blocks

Legal and ethical scraping practices

Success Criteria

Successfully scrapes target websites without blocks

Data extracted accurately and completely

Respects rate limits and ethical guidelines

Handles website changes gracefully

Scheduled crawls run reliably

Related Use Cases

View All Use Cases

Complex

ETL Pipeline Development

21-34 effort units 5-8 weeks

Medium

Real-Time Analytics Dashboards

13-21 effort units 3-5 weeks

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