Detecting Silent Data Quality Issues in Web ScrapingDetecting Silent Data Quality Issues in Web Scraping
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Unpopular opinion: the hardest part of web scraping in 2026 isn't getting past anti-bot walls. It's knowing when your data is quietly wrong.
A scraper that crashes is easy to fix because you notice. The dangerous one keeps running after a site changes its layout, filling your database with empty fields or stale prices for weeks before anyone spots it.
The fix is boring but works: check every run for row counts, missing fields and values that don't make sense, and get an alert when something drifts.
What's the sneakiest data bug you've shipped without noticing?
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