Blog

Guides, Tutorials & Insights

Learn about residential proxies, web scraping, data collection strategies, and industry best practices from the Shifter team.

Knowledge
Knowledge 6 min read

Catching Cloaked and Geo-Targeted Ads Competitors Hide From You

Competitor ads you cannot see from your desk are not hidden by accident. Here is how cloaking and geo-targeting work, and how to see what real users are shown.

James Meadow James Meadow · September 1, 2026
Knowledge
Knowledge 7 min read

Verifying Ad Placements at Scale: A Playbook for AdTech Teams

A verification programme is a sampling strategy, an evidence standard, and an escalation path. Here is how to design all three so findings get acted on.

Matt Brown Matt Brown · September 1, 2026
Knowledge
Knowledge 7 min read

How to Detect Ad Fraud Across 195+ Countries in Real Time

You cannot detect fraud from the dashboard reporting it. Detection means checking placements from real user vantage points, in every market, continuously.

James Meadow James Meadow · September 1, 2026
Scraping
Scraping 7 min read

Automating Daily Keyword Position Monitoring with a SERP API

Scheduling the fetch is the easy part. Here is the pipeline that turns daily SERP calls into a rank series you can trust, alert on, and explain to a client.

Chris Collins Chris Collins · September 1, 2026
Scraping
Scraping 7 min read

Configuring Residential Proxies in Selenium and Playwright

The gateway is identical for both, but proxy authentication is not. Here is the same setup in each framework and the differences that shape your architecture.

Chris Collins Chris Collins · August 31, 2026
Knowledge
Knowledge 7 min read

Are Residential Proxies Legal? What You Need to Know

Using a proxy is legal in most places. What you do through it, and how the network sourced its addresses, is where the actual risk sits.

James Meadow James Meadow · August 31, 2026
Residential Proxies
Residential Proxies 8 min read

Common Residential Proxy Errors and How to Fix Them

Every proxy failure falls into one of eight patterns, and the status code usually tells you which. Start here, identify the symptom, then go to the fix.

Matt Brown Matt Brown · August 31, 2026
Residential Proxies
Residential Proxies 6 min read

Setting Up Residential Proxies in cURL and Postman

Both tools handle proxies well, and both have a setting that quietly breaks things. Here is the working configuration for each, and how to debug the rest.

Chris Collins Chris Collins · August 31, 2026