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Home GlossaryRate Limiting

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What is Rate Limiting?

Capping how many requests an IP or user may send in a time window.

Rate limiting restricts how many requests a single IP, account, or API key can make within a time window, returning errors such as HTTP 429 (Too Many Requests) when the cap is exceeded. It is one of the most common obstacles in web scraping. The standard mitigation is IP rotation across a large proxy pool so that the per-IP request rate stays low while overall throughput remains high.

Related terms

Proxy Pool

The collection of available IP addresses a provider can route through.

CAPTCHA

A challenge designed to distinguish humans from automated traffic.

Web Scraping

Programmatically extracting structured data from websites.

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Fix 403 & 429 errorsRecover from forbidden and too-many-requests responses.403 / 429 solution guideRotation, backoff, and concurrency tuning.Premium residential proxiesCost-efficient rotating residential pool from €2.00/GB for bulk scraping and monitoring.Integrations hubCopy-paste proxy setup for Python, Node.js, Playwright, Scrapy, and 25+ developer tools.

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