Hash scraper technology blog

Why do crawlers keep breaking: the real reason websites change

Why do crawlers keep breaking: the real reason websites change

"It was working fine until yesterday." - Something anyone who has operated a crawler has said at least once Reading Time: 7 minutes | Last Updated: January 2026 The lifespan of a crawler is shorter...

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27 reasons why web scraping stops

27 reasons why web scraping stops

Blocking IP, CAPTCHA, structural changes... It is 10 times harder to preserve crawlers than to create them Reading time: 12 minutes | As of January 2026 Key Summary When you create a crawler, it ru...

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Developing a crawler yourself vs using a professional service: a difference of 200 million won after 3 years

Developing a crawler yourself vs using a professional service: a difference of 200 million won after 3 years

The truth about costs known only to those who have tried to make it themselves Reading Time: 8 minutes | January 2026 Key Summary Category In-house Development (3 years) Professional Service (3 yea...

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Comparison of web scraping APIs in 2026 — Firecrawl vs Crawl4AI vs Bright Data vs HashScraper

Comparison of web scraping APIs in 2026 — Firecrawl vs Crawl4AI vs Bright Data vs HashScraper

Which crawling API is right for your project? Reading Time: 15 minutes | As of January 2026 Key Summary With the era of AI agents, the crawling API market is explosively growing. The support for MC...

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Analyzing reactions to one's own and competitors' products through e-commerce review crawling.

Analyzing reactions to one's own and competitors' products through e-commerce review crawling.

Do you know what customers are saying about our products? There are hundreds of reviews on Coupang and Olive Young, but I can't read them all. When operating a beauty brand, you may have concerns l...

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How to manage global app quality through crawling app store reviews

How to manage global app quality through crawling app store reviews

How do you manage reviews from 40 countries? "The star rating suddenly dropped in the US App Store, but I don't know the reason." When operating global apps, situations like this arise. It is pract...

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Reasons why Naver crawling is blocked and solutions

Reasons why Naver crawling is blocked and solutions

Naver is not a single site. The blocking levels vary for each service. Reading Time: 14 minutes | As of January 2026 Key Summary Naver is the largest portal in the Korean search market, occupying a...

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Adding web crawling functionality to an AI agent - Complete tutorial on setting up on the MCP server

Adding web crawling functionality to an AI agent - Complete tutorial on setting up on the MCP server

If AI can directly fetch data from the web? Reading Time: 10 minutes | As of January 2026 Key Summary AI tools like ChatGPT, Claude, and Cursor are powerful, but they cannot directly access real-ti...

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Coupang Crawling 2026 Complete Guide - Everything About Akamai Bypass

Coupang Crawling 2026 Complete Guide - Everything About Akamai Bypass

"I used requests.get to fetch the Coupang product page, but only a blank page is showing up." — Question posted weekly on a developer community Reading Time: 15 minutes | As of January 2026 Key Sum...

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