Sergey Karpov — IMBA Blog Author

Sergey Karpov

I write about VPN protocols, eSIM, and paying for global services. Every guide I publish is tested on real devices — Windows, macOS, Android, iPhone, and Android TV. I track changes in censorship and blocking, and update articles when something stops working.

18
articles published
3
topics: VPN, eSIM, cards
5+
devices used for testing

All articles

VPN5 min read

How to Set Up a VPN on Windows and macOS (2026 Guide)

Step-by-step guide to installing IMBA VPN on Windows or macOS using the Happ app. VLESS Reality protocol, 5-minute setup, 7 days free.

July 11, 2026Read →
VPN7 min read

Best VPN Protocols in 2026: Which One Actually Works?

A complete breakdown of VPN protocols — from OpenVPN to VLESS Reality — and why some get blocked within seconds while others are invisible to DPI.

June 3, 2026Read →
eSIM5 min read

eSIM for International Travel: Everything You Need to Know

How to get local mobile data in any country without hunting for a physical SIM card — and why it costs 5-10x less than roaming.

May 28, 2026Read →
Card5 min read

How to Pay for Netflix, Spotify & Amazon from Any Country

A virtual card in USD, EUR, or AED lets you subscribe to any global service — even if your local card gets declined.

May 20, 2026Read →
VPN8 min read

VLESS Reality Explained: The Most Censorship-Resistant VPN Protocol

A technical deep-dive into VLESS with XTLS Reality — why it's invisible to DPI systems that block conventional VPNs.

May 15, 2026Read →
eSIM5 min read

eSIM in Turkey 2026: Best Plans and How to Stay Connected

Traveling to Turkey? Here's how to get affordable mobile data without paying roaming fees — and what to know about internet access there.

June 25, 2026Read →
eSIM4 min read

How to Set Up an eSIM on iPhone: Complete Step-by-Step Guide

Everything you need to know to install and activate an eSIM on your iPhone — from iPhone XS to iPhone 16.

June 10, 2026Read →
Card4 min read

How to Pay for ChatGPT Plus from Anywhere in 2026

Your card declined on OpenAI? A virtual card in USD solves the problem instantly — here's how to set it up.

July 1, 2026Read →
Card4 min read

How to Subscribe to Netflix from Any Country in 2026

Netflix blocks cards from certain countries and regions. A virtual card in USD or EUR solves this — with the right steps.

June 15, 2026Read →
VPN5 min read

VPN on Android TV: Setup in 10 Minutes

How to install IMBA VPN on an Android TV box or smart TV with Android OS — step by step, with the Happ app.

July 15, 2026Read →
VPN6 min read

How to Download and Set Up Happ for IMBA VPN

A complete guide to installing and configuring the Happ app on Android, iOS, Windows, and macOS to use IMBA VPN.

July 5, 2026Read →
VPN5 min read

VPN on Android in 2026: The Complete Setup Guide

How to install IMBA VPN on any Android phone in under 5 minutes — using the Happ app with VLESS Reality protocol.

July 15, 2026Read →
VPN4 min read

VPN on iPhone in 2026: 5-Minute Setup Guide

Install IMBA VPN on your iPhone with the Happ app and VLESS Reality protocol. Works where other VPNs get blocked.

July 15, 2026Read →
Privacy7 min read

EU Chat Control: What It Means for Your Privacy and Why You Need a VPN

The EU is pushing to scan every private message you send. Here's what Chat Control actually does, which countries oppose it, and how to protect yourself.

July 28, 2026Read →
VPN5 min read

Turkey Blocked Instagram Again: How to Get Access Back

Turkey has a long history of blocking social media platforms. Here's why Instagram keeps getting banned and how to bypass the block with a VPN.

July 25, 2026Read →
Privacy6 min read

UK Online Safety Act: How It Affects Your Internet and What You Can Do

The UK's Online Safety Act gives Ofcom power to order platforms to scan encrypted messages. Here's what it means for privacy in Britain.

July 22, 2026Read →
Privacy5 min read

Torrenting in France: HADOPI, Arcom, and Why You Need a VPN

France has the strictest anti-piracy enforcement in Europe. Arcom (formerly HADOPI) monitors torrents and sends fines. Here's how it works.

July 18, 2026Read →
Privacy6 min read

Why Germans Use VPNs More Than Anyone Else in Western Europe

Germany has the strongest privacy culture in Europe. Here's why millions of Germans use VPNs daily, and what the rest of Europe can learn.

July 15, 2026Read →