GuidesCrawlee proxy setup: rotation, sessions, tiers and SOCKS5
Crawlee proxy setup for Node and Python: ProxyConfiguration, how sessions pin proxies, the browser trap where proxyInfo lies, tiers, SOCKS5 and 407 loops.13 min read→GuidesDetect AI browser agents: signals, signatures and tests
How to detect AI browser agents: declared identity, Web Bot Auth signatures, browser and behaviour signals, why IP checks fail, and a test you can run.13 min read→GuidesMASQUE proxy: how HTTP/3 tunnels UDP and IP traffic
A MASQUE proxy tunnels UDP and IP traffic over HTTP/3 with CONNECT-UDP and CONNECT-IP. How it works, who runs it today, and what it means for proxy users.11 min read→GuidesMCP proxy server: bridges, gateways and web egress
What an MCP proxy server does: stdio to HTTP bridges, aggregators and gateways, what the 2026-07-28 spec changed for them, security risks and web egress.12 min read→Newsrobots.txt AI training opt out: one token, four companies
One robots.txt AI training token asks OpenAI, Google, Microsoft and Anthropic not to train on your site. How to add it, when each honours it, how to test it.5 min read→GuidesPay per crawl: how HTTP 402 lets sites charge AI crawlers
How Cloudflare pay per crawl uses HTTP 402, the crawler-price headers and Web Bot Auth, what sites and crawler operators set up, and where proxies fit.10 min read→Newssshole OpenSSH vulnerability: check Alpine and OpenWrt
sshole lets long passwords into OpenSSH on musl without PAM. Who is affected, the fixed Alpine and OpenWrt packages, and how to check your logs.5 min read→GuidesISP proxy pricing: the per-IP unit and how to size it
ISP proxy pricing explained: why static ISP IPs bill per IP per month, what moves the bill, terms and refunds, a sizing method, and the jobs ISP fits best.9 min read→GuidesWeb Bot Auth explained: signed requests, keys and proxies
Web Bot Auth lets bots sign HTTP requests with a published key. How the three headers work, who verifies them in 2026, and what a proxy changes.11 min read→GuidesIP reputation score: what it measures and how to read it
An IP reputation score rates how risky an address looks from blocklists, abuse reports and network type. How each scale works and how proxy IPs score.11 min read→GuidesProxies for market research: seeing each market as locals do
Which market research jobs need residential exits, where datacenter is enough, how to design a multi-market collection, and a sized 5-country weekly run.11 min read→GuidesWeb scraping architecture: components, patterns and proxies
Web scraping architecture splits a scraper into scheduler, fetcher, parser, storage and monitoring layers. How it changes with scale, and where proxies belong.12 min read→GuidesHow many proxies do I need? A sizing formula by job
How many proxies you need depends on the job: requests per hour, concurrent sessions, accounts or GB. Formulas, a pilot test and a worked example for each job.10 min read→Best PracticesCheap datacenter proxies: billing, sizing and where they fit
Cheap datacenter proxies are billed per IP or per GB, but value is set by how many requests return data. How to measure it, size an order and pick the tier.10 min read→GuidesIPv6 proxies: when they work and where they fail
IPv6 proxies reach only targets that serve IPv6, and many rate limiters count a whole /64 as one client. How to check both, and when IPv4 or residential fits.9 min read→Guidescurl proxy: -x, auth, SOCKS5, timing and exit codes
Run curl through a proxy with -x: credentials and encoding, socks5 vs socks5h, env vars, --noproxy, timing with -w, and what exit codes 5, 7 and 97 mean.12 min read→ComparisonsBest language for web scraping: Python, Node, Go and Java compared
Python, Node, Go and Java compared for scraping by parsing tools, concurrency, headless browsers and proxy support, with a verified proxy snippet for each.12 min read→Best PracticesProxy performance tuning: concurrency, reuse and timeouts
Proxy performance is mostly decided on the client. Tune connection reuse, concurrency and timeouts in order, then measure each phase with curl.12 min read→GuidesAre free proxies safe? What a free list actually delivers
What studies of free proxy lists found: dead proxies, leaked IPs, injected scripts and swapped certificates, what HTTPS hides, and when free is fine.13 min read→GuidesProxies for AI training data: throughput, sizing and rules
How to size proxies for AI training data: why datacenter ports carry most of the crawl, where residential fits, opt-out rules and a sized 10M page job.12 min read→ComparisonsISP vs datacenter proxies: which job each one fits
ISP vs datacenter proxies: both run on servers and hold one IP for the term. Which job each one fits, how speed compares, and how each is billed.10 min read→GuidesPHP cURL proxy: CURLOPT_PROXY, auth, SOCKS5 and errors
PHP cURL proxy setup that works: CURLOPT_PROXY and PROXYUSERPWD, special characters, SOCKS5 and socks5h, env variables, reuse, rotation and the 407 errors.9 min read→GuidesJava proxy setup: HttpClient, Authenticator and SOCKS5
Java proxy setup that works: system properties, java.net.Proxy, HttpClient, a scoped Authenticator, the 407 fix for Basic over CONNECT, SOCKS5, OkHttp, Apache.13 min read→GuidesUSA datacenter proxies: which US targets accept them
USA datacenter proxies are fast US server IPs. Which US targets accept hosting networks, which filter them, how to test one exit and when another tier fits.10 min read→GuidesHow to scrape Amazon: Python, the law and official APIs
Scrape public Amazon product and price data with Python: what the terms and courts say, the official API routes, polite rate limits and where proxies fit.16 min read→ComparisonsDatacenter vs residential proxies: which fits the target
Datacenter vs residential proxies compared on ASN, speed, location and billing model, with a 100,000-request job sized in GB and a test to pick per target.11 min read→ComparisonsDedicated vs shared proxies: who else uses your IP
Dedicated vs shared proxies compared: who else sends traffic from your IP, how each is billed, which tiers can be dedicated and when a pool wins.10 min read→GuidesPay as you go proxies: per-GB billing, no subscription
Pay as you go proxies bill per GB with no renewal. How to estimate GB, how per-GB rates scale, whether GB expire, and when a per-IP subscription fits better.7 min read→GuidesHow to use a proxy: system, browser, phone and code
How to use a proxy on Windows, macOS, iPhone, Android, Chrome, Firefox, curl and Python: what the details mean, where they go, and how to check it works.10 min read→GuidesWhat are datacenter proxies? Uses, limits and pricing
Datacenter proxies use IPs owned by hosting companies. What they are used for, why strict sites block them, how to test a target, and IPv4 port pricing.11 min read→GuidesBest proxies for web scraping: match the proxy to the job
The best proxies for web scraping depend on the target. Datacenter, residential, ISP and mobile compared by job, with billing models and a test to run first.13 min read→