What AI data collection looks like
Training and evaluating models often means crawling large numbers of pages: documentation, forums, articles, product data, code and more. Compared with typical scraping, it's broad (many domains), heavy (lots of pages) and long-running. Background in AI training data proxies.
The proxy needs are:
- High throughput at low cost per page.
- Many IPs to spread load across domains politely.
- Residential access for the minority of sites that block datacenter traffic.
Why Webshare fits bulk crawling
Webshare's datacenter lists are cheap per IP and come with high bandwidth options, up to unlimited under a fair usage policy, and thread counts in the thousands. For broad crawls of lenient sites, a large datacenter list is usually the cheapest way to move a lot of data. See Webshare datacenter proxies and bandwidth and threads.
For the sites that block datacenter IPs, route them to rotating residential traffic, which is billed per GB.
Planning throughput
- Estimate pages per day and average page size.
- Set a per-domain rate that's polite for small sites (for example, one request every few seconds).
- Calculate concurrency: pages per second times average response time.
- Choose plan settings with headroom for threads and bandwidth.
Because broad crawls hit many domains, per-domain politeness rarely limits total throughput; your plan's threads and bandwidth usually do.
Data quality
- Deduplicate at URL and content level; near-duplicates waste storage and training compute.
- Detect block pages and soft errors so they don't end up in your dataset.
- Extract main content and drop boilerplate (menus, footers, cookie banners).
- Record provenance: URL, fetch time and licence signals for every document.
Responsible collection
AI crawling has drawn scrutiny, so be careful:
- Respect robots.txt and AI-specific opt-outs that sites publish.
- Honour rate limits and back off on errors.
- Avoid personal data unless you have a clear lawful basis.
- Check licences and terms for the content you collect.
- Identify your crawler where appropriate.
See ethical web scraping. Webshare also restricts some targets on its residential network; see restricted sites and KYC.
Budget tip: You can test most of this guide for free: Webshare gives every new account 10 datacenter proxies and 1 GB of bandwidth a month without a credit card. Move to a paid plan once the pilot works. See our complete Webshare guide.
Comparing providers
For managed extraction (rendered pages returned as Markdown, crawling and search APIs built for AI agents), Geonode offers Scraper, Crawl and Map APIs alongside its proxies. Compare in Webshare vs Geonode for AI training data.
Crawl pipeline outline
- Seed list: domains and URLs, filtered by licence and opt-out signals.
- Fetcher: HTTP client through a Webshare datacenter list, per-domain rate limits, residential for blocked domains.
- Parser: main content extraction and language detection.
- Filters: quality, duplicates, personal data and unsafe content.
- Storage: documents with provenance metadata.
- Monitoring: per-domain success, bandwidth and error rates.
Planning bandwidth
| Crawl | Pages | Avg size | Total |
|---|---|---|---|
| Documentation sites | 2 million | 80 KB | About 160 GB |
| Forums | 10 million | 120 KB | About 1.2 TB |
| News and articles | 5 million | 150 KB | About 750 GB |
At these sizes, datacenter plans with high or unlimited bandwidth are usually more economical than per-GB residential traffic for the bulk of the work.
Opt-out handling
Check robots.txt and any AI-specific directives before crawling a domain, record what you found, and re-check periodically. If a site opts out, stop crawling it and consider removing previously collected data according to your policy.
Proxy tip: If your residential usage goes up and down, compare Geonode: its per-GB residential bandwidth doesn't expire, so you only pay for what you use. See Geonode for AI training data.
Evaluation datasets
Evaluation data needs freshness and diversity more than volume. Smaller, targeted crawls (for example, recent articles across many languages) benefit from residential country targeting, so you see local versions of sites.
A real-world example
A startup building a domain-specific language model collects technical documentation from 3,000 public sites. A Webshare datacenter list with an unlimited bandwidth setting handles 2,900 of them within per-domain politeness limits. The other 100 block datacenter IPs; the team checks their robots.txt and terms, drops the 30 that disallow crawling, and routes the rest through rotating residential traffic. Every document is stored with its URL, fetch date and licence information.
Not sure this is the right proxy type for the job? The best proxies in 2026 guide compares residential, ISP, datacenter and mobile options, and our cheap proxies guide covers budget picks that still work.
Key takeaways
- Datacenter lists with high bandwidth settings are usually the cheapest way to crawl the open web.
- Route only sites that block datacenter IPs through residential traffic.
- Plan throughput from pages per day, page size and per-domain politeness.
- Deduplicate, detect block pages and record provenance for every document.
- Respect robots.txt, AI opt-outs and personal data rules.
FAQ
Are datacenter proxies enough for AI training data?
For most of the open web, yes. Use residential traffic for the sites that block datacenter IPs.
Is unlimited bandwidth really unlimited?
It's subject to a fair usage policy. For very large crawls, read the policy and talk to the provider.
Do I need proxies to crawl the web for AI?
Not always, but spreading load across IPs helps you stay polite and avoid per-IP limits at scale.
How do I respect AI opt-outs?
Check robots.txt and any AI-specific directives before crawling, and honour them.
Should I use residential IPs for all AI crawling?
No. Use datacenter IPs for the majority and residential only where needed.
How do I avoid duplicate documents?
Normalise URLs and use content hashing or near-duplicate detection.
Editorial note: Proxy providers change their pools, features and prices often, so treat any figures here as typical ranges at the time of writing and confirm current terms with the provider before you buy.