A crawler working through thousands of pages gets blocked fast when every request leaves from the same IP. Our residential, rotating, and datacenter proxy pools spread those requests across a wide IP pool, so your crawl runs uninterrupted while you keep to robots.txt.
A stable, unchanging IP for long-running crawl workers.
High bandwidth at low cost for sweeping large sitemaps.
Real user IPs that move unnoticed through aggressively guarded targets.
Carrier IPs with the highest trust score for the strictest anti-bot targets.
Low-ping static IPs behind DDoS-protected routing.
Hundreds of back-to-back requests from a single IP are exactly what a target server's security systems are built to catch. Spreading those requests across a wide IP pool removes the tell-tale pattern of abnormal traffic arriving from one point.
Most servers allow only a set number of requests per minute from the same IP. Crawl traffic distributed across different IPs keeps every address under that ceiling while your combined throughput climbs far higher.
The wait added between requests to avoid hammering a server — the politeness delay — slows a single-IP crawl to a standstill. Share the traffic across many IPs and each one keeps its own delay while your total crawl rate goes up.
Even a polite, low-intensity crawler that respects robots.txt can be blocked over another process's aggressive traffic if it goes out on a shared IP. Your own IP pool means your compliance is judged on your behavior, not somebody else's.
Turning up the concurrent request setting on a single IP invites an instant ban. With a large proxy pool you keep concurrency low per IP and high in aggregate, crawling thousands of pages in parallel.
Many sites change language, pricing, and content by country and even by city. Without a real IP in the target location, the page content your crawler stores can differ from what an actual visitor sees.
Your crawl traffic leaves through addresses in the proxy pool instead of your own server's IP. Your real infrastructure never appears in the logs of the sites you crawl.
For broad, lightly guarded sets of sites, datacenter proxies are far cheaper per GB or per IP. Switch to residential only on tightly guarded targets and your budget follows how sensitive each target actually is.
Scrapy, Apache Nutch, Puppeteer, and your own HTTP client all support the backconnect endpoint format natively. Enter a single host:port plus your credentials and you are on the proxy pool without touching your existing crawl logic.
A web crawler (spider bot) is a program that sets out from one or more starting addresses (seed URLs) and moves systematically across sites by following the links it finds on each page. The flow is always the same: the crawler starts at the seed URL, fetches the page (crawl), parses the HTML to pull out new links and data (parse), writes the result to a database or file (store), then adds the new links it found to the queue and keeps the loop running.
Why Do You Need a Proxy? Target servers recognize continuous, heavy crawl traffic arriving from a single IP; they apply rate limits and ban that IP temporarily or permanently. The risk climbs further when you want to crawl fast by keeping the politeness delay (the wait between requests) low. A proxy pool spreads your requests across many different IPs, so your crawl can run at high concurrency without stalling.
| Job type | Session mode | IP source | Billing |
|---|---|---|---|
| High-volume, lightly guarded targets (large sitemaps) | Rotating Proxy | Datacenter Proxy | Monthly per IP |
| Tightly guarded targets with heavy bot detection | Rotating Proxy | Residential Proxy | Per GB |
| The most heavily guarded, highest-trust-required targets | Rotating Proxy | Mobile Proxy | Per GB |
| Flows that need a login or session tracking | Sticky Proxy | Residential Proxy | Per GB |
Data scraping usually pulls pages from a known list, once or on a fixed schedule. A crawler's job is different: following a sitemap.xml end to end to discover hundreds of thousands of pages, or automatically finding and queuing the new product pages an e-commerce site adds every day — a continuous, scheduled workflow.
At that scale a single IP is never enough — a crawler trying to refresh a 500,000-page sitemap once a day sends tens of thousands of requests per hour, and the target server sees that as abnormal traffic from one source. Search engine indexing is built on exactly this principle: wide IP pools and distributed request timing.
The same principle applies when building your own crawler: use Rotating Proxy during discovery so every request exits from a different IP, and switch to Sticky Proxy when you need to follow a specific subsection with a stable identity — that way you stay robots.txt-compliant and keep your scheduled crawl running without interruption.
| Data scraper | Web crawler | |
|---|---|---|
| Target list | Fixed, already known | Expands itself by following links |
| Focus | Extracting specific fields (price, stock, title) | Systematic discovery, usually paired with extraction |
| Example | Tracking one product's price | Search engine indexing, sitemap discovery |
The seed URL → crawl → parse → store loop you follow when building a crawl workflow from scratch:
DOWNLOADER_MIDDLEWARES = {"myproject.middlewares.ProxynetProxy": 100}
CONCURRENT_REQUESTS_PER_DOMAIN = 50
DOWNLOAD_DELAY = 0.5 # secondsFrom SEO audits and e-commerce catalog sweeps to finance tracking and brand protection — the fields web crawlers power.
Walk every page of a site systematically and surface broken links, missing meta tags, and indexability problems exactly as search engine bots see them.
Start from a store's category pages and follow links through to every product page, discovering thousands of SKUs in a single crawl cycle.
Re-crawl catalog pages at regular intervals to track price, stock, and campaign changes from real location IPs.
Map a competitor's full page structure, product assortment, and regional content differences systematically with a crawler.
Crawl the web at scale to find counterfeit sellers and scam sites trading on your brand name, logo, or product photography.
Crawl public market and news sites at regular intervals to collect price, announcement, and company data in real time.
Rated 4.4 out of 5 — "Excellent" on Trustpilot.
When you take the quality of the proxies they sell together with pre-sales and after-sales support, I can say they are among the best on the market. I want to work with them for a long time — thank you.
Çağlar
Trustpilot · 5.0/5 · Aug 2022
I was using a proxy from another company and could not get support. I was already registered on proxynet.io before buying; when a customer-service email arrived on Saturday I decided to try. So far I can say their fast replies and problem-solving approach really impressed me.Read on Trustpilot
Kemal
Trustpilot · 5.0/5 · Sep 2023
Technical support is fast. I was very happy with the ISP proxies; you could make prices a bit more affordable, mobile is unfortunately expensive, but ISP speeds and subnet quality are solid.Read on Trustpilot
Andre James
Trustpilot · 5.0/5 · Dec 2023
Have a different question, or need high-volume crawl infrastructure? Our expert team is available 24/7.
A web crawler is a bot that starts from one or more seed URLs and moves systematically across sites by following the links it finds on each page. The loop is always the same: seed URL → crawl (fetch the page) → parse (break down the HTML and pull out new links and data) → store (save the result); every new link it discovers is added to the queue and the same cycle repeats.
A data scraper focuses on extracting specific fields from a fixed, already-known list of pages. A web crawler's target list is not fixed; it expands its own set of targets by following links — the way search engines index the internet. In practice most crawlers also extract data from the pages they find, so they behave like a scraper at the same time.
Politeness delay is the wait a crawler inserts between consecutive requests to the same server; it keeps you from overloading that server and getting blocked. Cutting it on a single IP earns a fast ban. Once you distribute requests across a proxy pool, every IP keeps its own politeness delay while your total crawl speed rises in proportion to the number of IPs.
Raising the concurrent request count on a single IP creates an immediate rate-limit or ban risk. Spread that concurrency across the IPs in your proxy pool instead: each IP sends requests at a low, polite rate, while the pool as a whole lets you crawl thousands of pages in parallel.
Before it starts crawling, your crawler should read the target domain's robots.txt file and exclude every path marked Disallow from its scope. Using a proxy pool does not exempt you from robots.txt; the pool only solves IP-based blocking, while scope and permission checks stay inside your own crawler logic.
For stateless work such as page discovery and link following, sending every request from a different IP (rotating) is the most efficient option, while a sticky proxy holds the IP steady for flows that need a login or cookie tracking. On the source side, residential suits tightly guarded sites with aggressive bot detection; the far cheaper datacenter pool is the economical choice for high-volume, lightly guarded crawling such as sweeping a large catalog or sitemap; and mobile comes in for the most heavily guarded, highest-trust-required targets.
Scrapy, Apache Nutch, Puppeteer, and your own HTTP client all support the backconnect endpoint format (host:port and username:password) natively. In Scrapy you set it through DOWNLOADER_MIDDLEWARES, and in other tools through the request or client settings; there is no need to maintain a proxy list or write rotation logic in your code.