Blog

Guides on proxies, VPNs, IP addresses, and online privacy.

• Why Your Emails Go to Spam: Understanding IP Blacklists

  If your emails are silently landing in spam or getting rejected outright, your mail server's IP might be listed on a DNSBL. Here's what that means and how to check.

  October 10, 2026

• How Starlink Works: Satellites, Lasers, Gateways and the Path of a Packet

  A technical walkthrough of Starlink: low-Earth orbits, satellite generations, phased-array dishes, ground gateways, laser links, how traffic is routed, and where India's security rules meet the architecture.

  October 9, 2026

• Starlink India Delay: What Musk Said About Ambani, What the Government Replied, and What's Still Pending

  A sourced timeline of the Starlink India row of October 7-9, 2026: Musk's posts naming Ambani, the ministry's response, Rahul Gandhi's reply, and which approvals Starlink still needs.

  October 9, 2026

• How Sites Detect You're Using a Proxy or VPN

  Banking apps, streaming services, and e-commerce sites can often tell you're behind a proxy or VPN - even without you doing anything obviously suspicious. Here's how that detection actually works.

  October 8, 2026

• Who Owns That Domain? A Guide to WHOIS (and RDAP) Lookups

  Checking who registered a domain, when it expires, and which registrar manages it used to mean querying WHOIS. Here's how that lookup actually works today, and what's changed.

  October 6, 2026

• Why Is My Port Closed? Checking Open Ports the Right Way

  A closed port could mean nothing's listening, a firewall is blocking it, or the service isn't bound to a public interface - and they all look identical from the outside. Here's how to actually check.

  October 4, 2026

• IPv6 in India: Why Your Connection May Have Two IP Addresses

  About four in five Indian internet users can reach the web over IPv6, driven largely by mobile networks. Here's what that means for your own connection and how to check it.

  October 3, 2026

• CIDR Notation Explained: What /24 Actually Means

  Seeing an IP range written as 192.168.1.0/24 and not sure what the /24 means? Here's how CIDR notation actually works, and how to calculate it for any block.

  October 2, 2026

• Can Your ISP See What You Browse? DNS, HTTPS and SNI Explained

  HTTPS hides what you do on a site, but not everything. Here's exactly what your ISP can see, what encrypted DNS changes, and why this matters for how Indian ISPs block websites.

  October 1, 2026

• A, MX, TXT, NS: What All Your DNS Records Actually Do

  DNS records aren't just for pointing a domain at a server - MX handles mail, TXT verifies ownership and authenticates email, and NS controls who's authoritative at all. Here's a plain-English breakdown, plus how to check any domain's records.

  September 30, 2026

• How to Change DNS on Jio, Airtel, ACT or BSNL: Android, Windows and Router

  Step-by-step: switch from your ISP's default DNS to Google, Cloudflare or Quad9 on Android, iPhone, Windows, your browser, or your whole router - plus what changing DNS can and can't fix.

  September 29, 2026

• What's in a User-Agent String? Decode Yours in One Click

  Every request your browser makes carries a User-Agent string identifying your browser, OS, and device. Here's what's actually in it, and why it matters.

  September 28, 2026

• CGNAT on Indian ISPs: Why Port Forwarding Fails and What to Do

  If port forwarding, your home CCTV or a self-hosted server won't work from outside, your ISP may be sharing one public IP between many customers. Here's how to check, and what your options are.

  September 27, 2026

• 5G NSA vs SA: Why Your Phone's 5G Icon Might Be Lying to You

  Your phone shows a 5G icon, but the speed feels like 4G - and your 'unlimited 5G' data disappears fast. Here's the real reason, and how to check it yourself.

  September 26, 2026

• Why Do Banking Apps Ask You to Disable Developer Options or Wireless Debugging?

  Banking and UPI apps often refuse to run with Developer Options or wireless debugging enabled. Here's how they detect it and why it matters for fraud prevention.

  September 24, 2026

• Why Does My UPI or Banking App Block VPN?

  Banking and UPI apps often refuse to work over a VPN. Here's why they do it, how the detection actually works, and what to do about it.

  September 22, 2026

• How Accurate Is IP Geolocation, Really?

  IP geolocation is behind everything from currency defaults to content restrictions, but it's far less precise than people assume. Here's why.

  September 20, 2026

• 7 HTTP Security Headers Every Website Should Have

  HTTP security headers are one of the cheapest ways to reduce a website's attack surface. Here's what each one actually does.

  September 18, 2026

• What's a Good Ping? Understanding Network Latency

  Latency numbers get thrown around a lot, but what actually counts as good, and what makes it worse? A practical breakdown.

  September 16, 2026

• Is a Website Actually Down, or Just Blocked for You?

  A site not loading could mean it's down, or that something on your specific network is stopping you from reaching it. Here's how to tell the difference.

  September 14, 2026

• Best Proxy Providers for Web Scraping in 2026

  Choosing a proxy for web scraping depends on your target sites and budget, not just the biggest name. Here's how to match your project to the right provider.

  September 12, 2026

• Roundup

  India Telecom & Cloud Roundup: August 2026

  UPI hit a new record, Starlink still hasn't launched, and hyperscalers kept pouring billions into Indian data centers. Here's what actually happened in India's telecom and cloud space in August 2026.

  September 10, 2026

• Static vs Rotating Proxies: Which One Should You Use?

  Static proxies keep the same IP; rotating proxies change it automatically. Here's how to decide which one actually fits your use case.

  September 10, 2026

• Web Scraping 101: Do You Actually Need a Proxy?

  Not every scraping project needs a proxy. Here's how to tell when you actually need one, and which type fits the job.

  September 10, 2026

• How to Find Your Public IP Address (and Why It Matters)

  Your public IP address is what every site you visit sees by default. Here's how to find it, what it reveals, and when it's worth hiding.

  September 10, 2026

• Why Some Websites Don't Load on Jio or Airtel (and How to Check If Your Network Is Blocking Them)

  If a site works on WiFi but not your mobile data (or the other way around), your ISP may be blocking it. Here's how Indian ISPs block sites, and how to check your own network.

  September 10, 2026

• Online Privacy Basics: Simple Steps Anyone Can Take

  You don't need to be a security expert to meaningfully improve your online privacy. Here are the steps that actually matter, in order of effort.

  September 10, 2026

• How to Check If Your IP Address Is Leaking (WebRTC & DNS Leaks)

  A proxy or VPN can still leak your real IP address through WebRTC or DNS requests. Here's how these leaks happen and how to check for them.

  September 9, 2026

• Proxy vs VPN: What's the Difference and Which Do You Need?

  Proxies and VPNs both hide your real IP address, but they work differently and suit different jobs. Here's how to pick the right one.

  September 9, 2026

• Getting Started with Cloud Proxies: A Complete Guide

  Learn everything you need to know about cloud proxies, from basic concepts to advanced use cases for web scraping, privacy, and business applications.

  October 10, 2025