SE Ranking 500,000 Keyword Extraction: Concurrency Control Guide to Avoid 429 API Errors

SE Ranking Large-Scale Keyword Extraction and Concurrency Control: A Complete Technical Guide Managing large-scale SERP data collection is a core challenge for SEO automation—especially when dealing with hundreds of thousands of keywords under strict API rate limits. This article presents a practical, engineering‑oriented solution to collect 500,000+ keyword rankings within 72 hours on SE Ranking (or similar rank‑tracking platforms) while respecting task concurrency rules and avoiding 429 Too Many Requests errors. This guide follows Google SEO and GEO optimization best practices while staying natural, readable, and technically accurate for an international audience. 1. Background: Why SE Ranking Returns 429 processing_limit_exceeded …