Most projects never scrape anything — so why a whole lecture on web scraping? Because nothing teaches you how the web actually works faster. To scrape a page, you have to catch it doing everything your browser normally hides: where the data really lives, how pagination works underneath the buttons, what status codes mean when they happen to you, and what tools like Playwright, Puppeteer and Selenium actually do.
In this session of the FlyRank backend internship track, we take web pages apart: the four places data can live, the DevTools Network panel trick that reveals a page's hidden API, the three-question triage that saves you from launching a browser you don't need, and the pipeline that separates a script from a system — fetch, extract, normalize, validate, store, report. Is scraping legal? Where the grey area really is, and the security lesson hiding inside it for anyone who builds their own backend.
Everything is demonstrated on public practice sandboxes built to be scraped — free, no signup, no credit card. The paired assignment is on the portal, where every step from this lecture becomes a stage you build yourself.
Chapters
0:00 Intro — what we've built so far & why scraping
4:02 Is scraping legal? The grey area
6:56 What a scraper is + the pipeline
11:43 Classify the target before you write code
14:13 The four places data lives on a page
20:22 Demo: finding the hidden API in the Network panel
22:13 Pagination — and the one rule of scraping it
26:16 The line: permission, security & secrets
31:15 Two ways to scrape + Playwright, Puppeteer, Selenium
36:09 Normalize, validate, status codes & the silent zero
49:02 Assignment + wrap-up
About the internship:
The FlyRank AI Internship is a free, global, self-paced program where you build real work with AI and graduate with a verifiable credential, an eligible recommendation letter, and a portfolio piece. Six tracks. First cohort, July 2026.
→ Apply: internship.flyrank.ai
→ Why we built it: internship.flyrank.ai/why
Practice targets from this session (free, built for scraping practice):
Questions? Reach out on the portal or on LinkedIn — I answer as quickly as I can.
#webscraping #backend #webdevelopment #devtools #playwright #selenium #internship