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Notes on metered proxies.

Comparisons, guides, and the occasional opinion on proxies, mobile IPs, and paying for the bytes you actually use.

October 4, 20269 min read

Cut Proxy Bandwidth 50 to 90%: 4 Developer Fixes That Map to Billing

Developer playbook to reduce proxy bandwidth 50 to 90% with four practical fixes: block images/fonts/media, prefer HEAD or API calls, cache, and match...

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October 3, 202611 min read

Measure Headless Browser Bandwidth: How Developers Avoid Paying Twice

Measure headless browser bandwidth, pinpoint costly requests, and cut bytes with request blocking, caching, concurrency limits, and proxy fixes. Includes...

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October 2, 202612 min read

One Week Test: VPN vs Proxy for Scraping When Geo or Anti Bot Matter

Engineering guide to VPN vs proxy for scraping. Practical checks for anti bot detection, EDPB compliance, and when mobile IPs are required.

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October 1, 20269 min read

City Level Scraping for Developers: Socrata, ArcGIS & EDPB 03/2026

For developers and researchers: detect Socrata or ArcGIS endpoints, build a four stage city level pipeline, and meet EDPB 03/2026 compliance.

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September 30, 202615 min read

7 Steps to Device Fingerprinting Evasion That Survive Browser Updates

Practitioner-first guide to reduce linkability: build and maintain coherent browser, TLS, and IP fingerprints, test after each browser update, and version...

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September 29, 202610 min read

Developers: Puppeteer Proxy Rotation Using Mobile IPs in 46 US Cities

Code-first walkthrough for developers: set up reliable Puppeteer proxy rotation with provider-managed gateways, BrowserContext auth, and mobile IPs across...

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September 28, 202611 min read

HTTP vs HTTPS Proxy: 5 Decision Rules for Network Admins

Practical guidance for network admins on CONNECT, TLS to proxy, and interception. Includes env var, libcurl and JVM flags, client behavior checks, and a 5...

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September 27, 20269 min read

Developers: 7 Robots.txt Checks to Avoid Legal Risk in AI Training

Robots.txt scraping for developers: parse per RFC 9309, follow up to five redirects, refresh rules within 24 hours. A 7-step checklist and legal notes on...

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September 26, 20269 min read

46 City Mobile IPs to Bypass Geo Blocks for Reliable Scraping

Playbook for developers to bypass geo restrictions using city level mobile or residential proxies, matching locale and fingerprints, session stickiness,...

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September 25, 202610 min read

Avoid Blocks: Rust Proxy Requests with 46 City Mobile IPs

Map reqwest and hyper-proxy APIs to production ready Rust proxy patterns. Learn client vs server choices, proxy auth, SOCKS5 quirks, and test with 46 city...

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September 25, 20265 min read

Masklabs Geolocation Proxy for Localized SERP Checks

Masklabs geolocation proxy helps teams run localized SERP checks with mobile proxies, API access, and browser automation.

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September 24, 202611 min read

Fix 407s in C# HttpClient Proxy for Developers with SocketsHttpHandler

Practical C# patterns to configure HttpClient proxies, stop 407 proxy authentication errors, and manage handlers using SocketsHttpHandler and...

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September 24, 20265 min read

Masklabs 5G Proxies for Fast Browser Automation Workflows

Masklabs 5G proxies power browser automation with mobile IPs, location-based sessions, API access, SDKs, and billing tools.

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September 23, 202610 min read

Three Checks for Engineers Verifying Geotargeted Proxies on Mobile IPs

Three verification checks engineers run to make geotargeted proxies reliable. Covers session handling, render and marker assertions, plus mobile IP examples.

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September 23, 20266 min read

Masklabs Proxy API for Browser Automation Projects

Browser automation projects use Masklabs Proxy API for mobile proxies, location-based sessions, and scalable control with Playwright or Selenium.

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September 22, 20269 min read

Engineers: Reliable Automated Browsing and Scraping from $30

Developer guide to Playwright, Puppeteer, Selenium, and Scrapy. Covers mobile proxy rotation, sticky sessions, scaling, and long-running scraping best...

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September 22, 20269 min read

8 Proxy API Features Data Teams Should Compare First

Compare proxy api features that matter first: auth, CONNECT/SOCKS5, sessions, geo routing, caching, browser support, and logs for teams.

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September 21, 202616 min read

3 Copy-Ready Configs for Java Proxy Scraping: Fix 407s & Pool Throttling

Copy-paste proxy configs for Java (HttpClient, OkHttp, Apache), the JVM HTTPS tunneling fix that stops 407s, connection-pool tuning to avoid silent...

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September 21, 20265 min read

Masklabs Rotating Proxies for Scalable Data Extraction

Masklabs rotating proxies help teams scale data extraction with mobile IPs, location-based sessions, API access, and browser automation.

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September 20, 202611 min read

Detect CGNAT in 5 Minutes: Carrier Grade NAT Explained for Engineers

RFC 6888 explainer for engineers: packet flows, five minute CGNAT checks, and fixes from PCP to VPNs and carrier IP proxies.

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September 19, 202611 min read

Copy-Paste Axios Proxy for Node.js — Masklabs Mobile IPs in 46 Cities

Copy-paste Axios proxy examples for Node.js: inline proxy, HttpsProxyAgent, and SOCKS5. Includes interceptor-based rotation, troubleshooting, and Masklabs...

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September 18, 20269 min read

Fix 407s and Rotate Proxies for Java and Apache HttpClient

Code-first troubleshooting for java.net.http and Apache HttpClient. Set proxies, fix 407s and CONNECT tunnel failures, rotate without rebuilding, or use...

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September 18, 20269 min read

10 Headless Browser Tools for Proxy-Ready Workflows

Compare 10 headless browser tools for proxy-ready automation, scraping, and testing, with Playwright, Puppeteer, Selenium, and Chrome.

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September 17, 202614 min read

Fix TLS First to Avoid IP Blocks When Scraping for Engineers

A practical escalation ladder for engineers: diagnose TLS, rate limits, and IP reputation in order, then add residential or mobile proxies only when needed.

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September 17, 20265 min read

Masklabs Puppeteer Proxy for Scalable Browser Tasks

Scale browser automation with a puppeteer proxy from Masklabs using mobile IPs, sticky sessions, Proxy API, and dev-friendly setup.

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September 16, 202613 min read

Fix 407s: HTTP Proxy Authentication for Engineers With curl & RFCs

Understand the two header proxy auth flow, pick secure schemes, fix 407 errors, and test with curl. Includes Squid and Nginx notes, browser caveats, and...

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September 16, 202610 min read

10 Private Proxy Benefits for Secure Team Access Now

Discover how a private proxy boosts secure team access with centralized control, app-level security, cleaner logs, and safer automation.

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September 15, 202610 min read

Avoid DNS Leaks: 5 Tests to Pick SOCKS5 or HTTP Proxy for Engineers

A 5-test checklist engineers can run to choose between SOCKS5 and HTTP proxies. Compare DNS leakage, UDP/WebRTC, client support, and mobile-proxy trade-offs.

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September 15, 20269 min read

7 Datacenter Proxies vs Mobile Proxies Facts to Know

Learn 7 key facts about datacenter proxies vs mobile proxies, including IP origin, CGNAT, detection risk, costs, and best-use cases.

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September 14, 202613 min read

Engineers: 5 Copy Paste curl Proxy Commands to Debug DNS

Copy paste curl proxy commands and protocol notes on DNS, CONNECT, SOCKS, and proxy auth. Quick examples, diagnostics, and mobile proxy validation included.

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September 14, 20269 min read

8 CAPTCHA Solver Options for Proxy-Based Automation

Captcha solver options for proxy automation: compare compliant workflows, stable sessions, reCAPTCHA scoring, and human review.

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September 13, 202610 min read

Ship Python Scrapers Faster With Proxies, Rotation, and MaskLabs

Python production examples using Requests and aiohttp for rotating proxies, retries, and sticky sessions. Benchmark hundreds of calls to compare MaskLabs...

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September 12, 202614 min read

Build a 0–100 Score to Verify Proxy Geolocation for Engineers

Developer workflow to verify proxy geolocation: run multiple DB lookups, ASN/WHOIS and traceroute checks, test for browser leaks, and produce a 0–100...

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September 11, 202619 min read

US, EU, UK Web Scraping Rules for 2026: EDPB Guidance and Key Cases

2026 jurisdiction aware update on web scraping law: US cases, EDPB and CNIL guidance, plus practical engineering safeguards to lower legal risk.

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September 11, 20267 min read

User Agent Rotation and Fingerprints Explained Clearly

User agent rotation helps only when browser, headers, UA-CH, and fingerprints stay consistent across sessions and network signals.

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September 10, 202610 min read

Avoid IP Bans: Mobile Proxies, Rotating vs Sticky Sessions for Engineers

Technical explainer for engineers on mobile proxies: how CGNAT, PDN‑GW/UPF and rotating vs sticky sessions affect block risk, costs, and trial validation.

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September 10, 20264 min read

Masklabs LTE and 5G Proxies for Location Testing at Scale

LTE and 5G proxies from Masklabs provide real carrier-network mobile IPs in 46 U.S. cities for scalable testing, SEO, automation, and AI.

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September 9, 202614 min read

Copy Paste Wiring for Developers: Scrapy Proxy Rotation and MaskLabs

Developer-first Scrapy proxy rotation: copy paste middleware wiring, ban detection, and concurrency tuning. When to escalate to MaskLabs mobile IPs.

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September 9, 20264 min read

Masklabs US Mobile Proxies for Local Search Testing

Use a us proxy from Masklabs to test local search by city with real mobile IPs, rotating or sticky sessions, and API access.

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September 8, 20264 min read

Masklabs Playwright Proxies for Reliable Geo Testing

Improve geo testing with playwright proxy sessions from Masklabs, combining mobile proxies, geolocation, locale, and timezone for real regional checks.

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September 7, 20269 min read

Session Management Tips for Stable Proxy Workflows

Session management keeps proxy workflows stable by aligning cookies, sticky sessions, and auth rotation to prevent drift and login failures.

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September 4, 20266 min read

Masklabs Selenium Proxy for Automated Testing Teams

Use a selenium proxy with Masklabs to route WebDriver traffic through location-based mobile proxies for reliable, developer-friendly testing.

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September 4, 20269 min read

9 Residential Proxy Use Cases for Market Research Teams

Explore 9 residential proxy use cases for market research, from local search and pricing analysis to reviews, ads, and competitor tracking.

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September 4, 202610 min read

12 Browser Fingerprint Facts Teams Should Know Today

Browser fingerprint signals combine browser, device, and network traits to identify sessions, affecting privacy, fraud, and automation.

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September 4, 20265 min read

Masklabs Sticky Session Proxy for Account Workflows

Masklabs sticky session proxy keeps account workflows stable with mobile proxies, location-based sessions, and developer-ready automation.

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September 4, 202610 min read

11 Proxy Checker Tools to Test Rotation and Speed Now

Find the best proxy checker tools to test speed, rotation, DNS, latency, jitter, and routing accuracy across HTTP and SOCKS5 proxies.

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September 4, 20265 min read

Masklabs Secure Proxy for Online Brand Protection

Strengthen brand protection with Masklabs mobile proxies to verify phishing, counterfeit listings, and domain abuse by region.

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September 4, 202610 min read

10 Best Mobile Proxy Providers for Developer Teams

Find the best mobile proxy for developer teams with this guide to top providers, session control, compliance, testing, and automation.

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September 4, 20265 min read

Masklabs Proxy Service for Price Monitoring Teams

Masklabs supports price monitoring with mobile proxies, geo-targeted sessions, and browser automation for reliable retailer data collection.

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September 4, 20265 min read

Masklabs Mobile Proxy API for Data Collection Teams

Masklabs offers a mobile proxy API for data collection, SEO, AI, and ad verification with location-based sessions, SDKs, and docs.

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September 4, 202610 min read

10 Bot Detection Signals Scrapers Must Handle Well

Learn the top bot detection signals scrapers must handle, from headers and TLS fingerprints to session realism and browser consistency.

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September 4, 20268 min read

How Rate Limiting Affects Large-Scale Web Automation

Rate limiting shapes large-scale web automation, affecting speed, retries, concurrency, and durable access for crawlers and APIs.

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August 12, 20265 min read

Ad verification: check placements from the city you targeted

Ads render differently by location and network. Learn how to verify creative, landing pages, and geo match the city and carrier your campaign targets.

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August 12, 20265 min read

Local rank tracking: why one search result page lies to you

Search, map, and shopping results shift by metro and network type. Here is how to collect rankings from real markets without distorting the data.

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August 12, 20266 min read

Building AI training and RAG datasets with mobile proxies

Datacenter crawlers get served blocked pages and altered content. Mobile IPs see what real readers see. Here is how to crawl clean, metered training data.

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August 12, 20266 min read

Why your AI agent keeps getting blocked (and how to fix it)

Autonomous agents browsing from datacenter IPs hit CAPTCHAs and geofences constantly. A real US mobile IP fixes that. Here is how to wire it up.

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August 12, 20265 min read

Why the same fare or room shows a different price by location

Flights, hotels, and rental cars quote different prices by location. Here is how to check what shoppers actually see in each city, not just your own.

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July 1, 20266 min read

Masklabs vs Oxylabs: which proxy fits how you actually work?

A practical comparison of Masklabs and Oxylabs on pricing model, data refills, per-byte metering, and onboarding, so you can pick the proxy network that matches your workload instead of the other way around.

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June 18, 20265 min read

Rotating vs sticky sessions: which one does your job actually need?

A fresh IP on every request isn't always the right call. Here's how rotating and sticky sessions work on Masklabs, the suffix that switches between them, and how to pick per job.

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April 9, 20266 min read

From credential to first request: a Masklabs quickstart

Provision a proxy credential and make your first proxied request in under five minutes. Covers the connection string format, rotating vs sticky, location targeting, and both HTTP and SOCKS5.

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