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Product hunt launch

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Timo Knuth
2026-05-27 14:33:58 +02:00
parent 4774f4d51e
commit 09f5859af2
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tasks/lessons.md
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@@ -3,3 +3,9 @@ For lead scraping, do not rely only on pre-enrichment dedupe. Website crawling c
Lesson:
Large API scraping runs should write incremental output or use smaller controlled batches. A long Overpass workflow can hang or rate-limit without producing files, making it hard to recover useful partial results.
Lesson:
For bulk email pre-validation, avoid synchronous per-domain PowerShell DNS checks because slow domains can stall the whole run. Use a concurrent DNS checker with explicit per-query timeouts and write separate valid, unknown, and invalid reports.
Lesson:
DNS/MX-valid is not enough for Smartlead-quality lead uploads. Calibrate high-confidence exports against Smartlead feedback by domain; in the first two batches, gmail.com-style domains were far more reliable than large hotel-chain domains even when both had valid MX records.