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Robert N. Gutierrez

I write about what actually goes wrong in production, scraping failures, silent data loss, monitoring gaps, and how to design systems that don’t lie.

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Stop Silent Scraper Failures: Using Pydantic for Instant Layout Change Detection
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Stop Silent Scraper Failures: Using Pydantic for Instant Layout Change Detection

#webscraping #webdev #python #devops
4
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5 min read
How to Build an AliExpress Price Tracker with Python and Playwright
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How to Build an AliExpress Price Tracker with Python and Playwright

#webdev #playwright #python #devops
1
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5 min read
How to Export Depop Listings to a Shopify CSV Using Python
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How to Export Depop Listings to a Shopify CSV Using Python

#shopify #webscraping #python #webdev
1
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4 min read
From Scrape to Feed: Building a Google Merchant Center CSV from Zappos Data
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From Scrape to Feed: Building a Google Merchant Center CSV from Zappos Data

#webscraping #devops #python #dataengineering
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4 min read
Bulletproof Data Pipelines: Adding Schema Validation to Nike Scrapers
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Bulletproof Data Pipelines: Adding Schema Validation to Nike Scrapers

#webdev #devops #webscraping #python
2
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5 min read
The 5-Minute Repair: A Workflow for Surviving Site Redesigns
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The 5-Minute Repair: A Workflow for Surviving Site Redesigns

#webdev #ux #webscraping #productivity
2
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4 min read
Automating Market Research on Dermstore: Scrape Categories and Monitor Inventory Trends
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Automating Market Research on Dermstore: Scrape Categories and Monitor Inventory Trends

#marketresearch #webscraping #node
2
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5 min read
Building a Costco Price Tracker with Python, Playwright, and Streamlit
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Building a Costco Price Tracker with Python, Playwright, and Streamlit

#python #webscraping #playwright #devops
2
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4 min read
Dynamic Selector Fallbacks: How to Scrape E-commerce Sites That Change Frequently
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Dynamic Selector Fallbacks: How to Scrape E-commerce Sites That Change Frequently

#webscraping #ecommerce #python #dataengineering
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5 min read
Building a 'Data-on-Demand' Microservice: Wrapping Alibaba Scrapers for Internal Tools
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Building a 'Data-on-Demand' Microservice: Wrapping Alibaba Scrapers for Internal Tools

#webscraping #scraper #python #dataengineering
3
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5 min read
The Waterfall Pattern: A Tiered Strategy for Reliable Data Extraction
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The Waterfall Pattern: A Tiered Strategy for Reliable Data Extraction

#webscraping #dataengineering #devops #dataextraction
1
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5 min read
Building a 'Living' Market Intelligence Dashboard with Python and Streamlit
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Building a 'Living' Market Intelligence Dashboard with Python and Streamlit

#webscraping #python #devops #dataengineering
1
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5 min read
How to Generate a Google Shopping Feed from Any Website Using Python
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How to Generate a Google Shopping Feed from Any Website Using Python

#webscraping #datascraping #googleshopping #python
1
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5 min read
The 99.9% Reliability Stack: Implementing Error Budgets in Web Scraping
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The 99.9% Reliability Stack: Implementing Error Budgets in Web Scraping

#webscraping #devops #dataengineering
1
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5 min read
Why Your Competitive Intelligence Scrapers Fail: A Deep Dive into Browser Fingerprinting
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Why Your Competitive Intelligence Scrapers Fail: A Deep Dive into Browser Fingerprinting

#webscraping #fingerprinting #reverseengineering #playwright
1
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6 min read
How to Use Competitor Out-of-Stock Data to Optimize Ad Spend
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How to Use Competitor Out-of-Stock Data to Optimize Ad Spend

#webscraping #datapipelines #marketing
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5 min read
Mitigating 'Scraping Shock': Engineering Cost-Aware Data Pipelines
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Mitigating 'Scraping Shock': Engineering Cost-Aware Data Pipelines

#webscraping #dataengineering #observability
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5 min read
The Hybrid Fallback Strategy: Combining Cheerio and Playwright for Maximum Reliability
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The Hybrid Fallback Strategy: Combining Cheerio and Playwright for Maximum Reliability

#webscraping #hybridscraping #javascript
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4 min read
Python vs. Node.js: I Used AI to Build the AppSumo Scraper in Both Stacks
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Python vs. Node.js: I Used AI to Build the AppSumo Scraper in Both Stacks

#webscraping #python #node
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5 min read
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