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+--- Thread: [b]"What’s the best way to build a reliable node.js website scraper?"[/b] or [b]"Need help optimizing my node.js w (/thread-b-what%E2%80%99s-the-best-way-to-build-a-reliable-node-js-website-scraper-b-%0A%0Aor-%0A%0A-b-need-help-optimizing-my-node-js-w)
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[b]"What’s the best way to build a reliable node.js website scraper?"[/b] or [b]"Need help optimizing my node.js w - TorVoyager99 - 20-12-2024
"Need help optimizing my node.js website scraper—any tips?"
Hey folks! So I’ve got a node.js website scraper that’s *kinda* working, but it’s slower than my grandma’s dial-up. 😅
Using Cheerio + Puppeteer right now, but it feels clunky. Anyone got tricks to speed things up?
Also, how do you handle rate limits without getting banned? My scraper keeps getting throttled after like 20 requests.
And what’s the deal with dynamic content? Some sites load stuff *after* the initial page load, and my scraper just nopes out.
Would love any hacks or lib recommendations. Thx in advance!
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*(or if you prefer one of the other titles, lmk and I can tweak!)*
“” - CloudStorm99 - 07-02-2025
Hey! For speeding up your node.js website scraper, try using `puppeteer-cluster` to parallelize tasks. It’s a game-changer for handling multiple pages at once.
Also, for rate limits, rotate user agents and use proxies (like BrightData or ScraperAPI).
Dynamic content? Puppeteer’s `waitForSelector` or `waitForFunction` can help.
Hope this helps!
“” - ghostLurk99 - 10-03-2025
Dude, Cheerio + Puppeteer is solid, but yeah, it can feel slow. Try ditching Cheerio for lighter sites—Puppeteer alone might be faster.
For rate limits, space out requests with `setTimeout` or use a library like `bottleneck` to throttle automatically.
And for dynamic stuff, `page.evaluate()` is your friend.
“” - AnonCircuitX - 23-03-2025
If your node.js website scraper is getting throttled, you might wanna check out `axios-retry` for auto-retries. Also, some sites block headless browsers—try `puppeteer-extra` with stealth plugins.
For speed, cache responses if possible. Redis works great for this.
Dynamic content? Yeah, Puppeteer’s `waitForNetworkIdle` can help, but it’s not perfect.
“” - fastVoy_77 - 25-03-2025
Rate limits are the worst! I use `proxy-chain` + random delays between requests. Also, respect `robots.txt`—some sites are cool if you play nice.
For speed, try `playwright` instead of Puppeteer. It’s newer and sometimes faster for scraping.
Dynamic content? `page.waitForXPath()` is clutch.
“” - cloakRun99 - 27-03-2025
Honestly, your node.js website scraper might just need better error handling. Use `try-catch` blocks everywhere and log errors to see where it’s failing.
For speed, disable images/styles in Puppeteer (`page.setRequestInterception(true)`).
Rate limits? Rotate IPs and use residential proxies.
“” - TorVoyager99 - 01-04-2025
Wow, thanks for all the tips! Tried `puppeteer-cluster` and it’s way faster already.
Still hitting rate limits though—gonna test `scrapeops.io` next.
Quick Q: Anyone know if Cloudflare bans are avoidable with these tricks? My scraper keeps getting blocked after a while.
Also, `playwright` looks interesting—might switch if Puppeteer keeps being a pain.
Thanks again, y’all are lifesavers!
“” - HoodedShadow99 - 04-04-2025
Puppeteer’s slow because it loads the whole page. Try `page.goto(url, { waitUntil: 'domcontentloaded' })` instead of `'load'`.
For rate limits, check out `scrapeops.io`—they handle throttling for you.
Dynamic content? Sometimes you gotta trigger clicks with `page.click()`. Annoying but works.
“” - StealthGlider99 - 04-04-2025
If you’re scraping heavy sites, split your node.js website scraper into smaller chunks. Too many requests at once = insta-ban.
Use `user-agents` npm package to randomize headers.
For dynamic stuff, `page.waitForResponse()` is gold if you know the API calls.
“” - darkXpert99 - 04-04-2025
Try `apify.com` if you wanna skip the hassle. They’ve got built-in proxies and scaling for node.js website scrapers.
Otherwise, for speed, pre-render pages with `prerender.io` (kinda pricey tho).
Rate limits? Back off exponentially with `p-retry`.
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