Web Scraping & API Glossary

Blocking at the scraper level is usually triggered by the shape of individual requests, not overall traffic volume — a m...

Scraped data fails silently. A selector that grabs the wrong element, a currency symbol left in a number field, or a dat...

Pagination is where scrapers silently lose data: a job that "works" but only returns page one, or a loop that never term...

On a JavaScript-heavy site, the HTML your scraper fetches with a plain request and the DOM a visitor actually sees are d...

Crawling answers "what pages exist." Scraping answers "what's in them." A crawler walks links to build a URL list; a scr...

Scraping itself — an HTTP request to a public URL — isn't illegal. What creates legal exposure is what you do with the d...

The right scraping tool depends on one question: does the data you need exist in the raw HTML, or does it only appear af...

Ethical scraping is about what happens to the data after extraction, not just how politely you fetch it. A scraper can r...

A 429 is the server telling your scraper "too many requests, slow down" — not "you're banned." It's a rate-limit signal,...

Answer The best format depends on how you plan to use the data. CSV is simple and works well for tabular data and quick ...

Web scraping is the process of pulling specific fields out of a web page — a price, a title, a review count — and turnin...