---
title: "Discussion on \"Scraped Data Quality Is a Runtime Contract, Not a Cleanup Task\" | Hashnode"
description: "Discussion on \"Scraped Data Quality Is a Runtime Contract, Not a Cleanup Task\". Web scraping data quality improves when teams validate fields at ingestion, quarantine suspicious records, and monitor schema drift as runtime failures."
url: "https://hashnode.com/posts/scraped-data-quality-is-a-runtime-contract-not-a-cleanup-task/6ace024d2180f13ea0681ef5"
---

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Discussion

# [Scraped Data Quality Is a Runtime Contract, Not a Cleanup Task](https://anakinwriters.hashnode.dev/scraped-data-quality-is-a-runtime-contract-not-a-cleanup-task?utm_source=hashnode&utm_medium=feed)

Web scraping data quality improves when teams validate fields at ingestion, quarantine suspicious records, and monitor schema drift as runtime failures.

Oct 13 · 8 min read · anakinwriters.hashnode.dev  
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-   [#web-scraping](https://hashnode.com/tag/web-scraping)
-   [#data-engineering](https://hashnode.com/tag/data-engineering)
-   [#data-quality](https://hashnode.com/tag/data-quality)
-   [#python](https://hashnode.com/tag/python)
-   [#monitoring](https://hashnode.com/tag/monitoring)

## Written by

[Anakin Tech](https://hashnode.com/@anakinwriters)

@anakinwriters

  
[View profile](https://hashnode.com/@anakinwriters)

One API. The whole web, agent-ready. Built for agents and workflows that need to search, interact, and extract at scale.

## Responses 1

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[OnlineProxy](https://hashnode.com/@onlineproxyio)

[Oct 14](https://hashnode.com/posts/scraped-data-quality-is-a-runtime-contract-not-a-cleanup-task/6ace024d2180f13ea0681ef5/comment/6acfdb2cde6f6a64a52b5217)

the main thing i’d flag is that normalized drops price\_text, so reviewers of quarantined records can’t see what the parser actually got, which goes against the article’s own advice

the locale handling could also use some work, since the euro and pound signs don’t get stripped and comma decimals can silently turn into the wrong number. empty price\_history skips the plausibility check entirely, which is exactly where new products tend to hide bugs. a per-identity MAD check might help, but it’d need testing on real data first