What is Typosquatting? And How to Avoid Getting Tricked

Learn how attackers trick users with fake URLs, why it's such a big risk, and how to stay safe with simple tools and smart browsing habits.

What Is DNS Rebinding (And Why Should You Care)?

Imagine this: you click on what seems like a normal website, but behind the scenes, it quietly opens a door into your private home or office network. That’s the basic idea behind DNS rebinding, a sneaky attack that turns your web browser into a tool for hackers. It sounds

Announcements

Control D Is SOC 2 Type II Compliant

Control D is now SOC 2 Type II compliant, proving our commitment to secure, private, and reliable internet control for all users.

Cloudflare vs. Zorus

Compare both to see which solution offers better performance, features, and protection for your business. Also, explore a third, better option.

How to Restrict Internet Access (Block Content): Step-by-Step Guide

Learn how to restrict internet access on any network. Compare tools, see pros & cons, and block content fast with this Control D guide.

ISP Filtering: What It Is, How It Works, and Why It's Not Enough

Learn what ISP filtering is, how it works, why it's not enough for security, and better alternatives for 2025.

DNSFilter vs. SafeDNS: What's the Better Choice?

Head-to-head comparison of each platform across features, pricing, performance, and more, as well as a third option worth considering.

How to Force Google Safe Search

Step-by-step guide on how to force Google Safe Search on all devices and browsers – perfect for homes, schools, and workplaces.

What is a DNS Error? What It Is, Why It Happens & How to Fix It

Learn what a DNS error means, why it happens, and how to fix it in under 5 minutes.

WebTitan vs. Cisco Umbrella

Compare Cisco Umbrella vs WebTitan on features, pricing, and performance to find the right DNS filtering solution for your business

How to Block Torrenting at Work, School, and on Public Wi-Fi

Learn how to block torrenting on your network with DNS filtering, firewall rules, and other proven methods.

DNS-over-TLS (DoT) vs DNS-over-HTTPS (DoH): What’s the Difference?

Learn which encrypted DNS protocol is best for security, compliance, and network control in 2025.

How Do Schools Block Websites? A Complete Guide for 2025

Discover the tools, methods, and reasons behind why schools block harmful or distracting websites, and why DNS filtering is the most effective.

DefensX vs. Cisco Umbrella

A head-to-head comparison of both across features, performance, and more, with insight into a third alternative that could be the best pick.

What is a Zero-Day Attack? Complete Guide to Prevention

Learn what a zero-day attack is, how it works, who’s behind it, and 8 proven ways to protect your business from these stealthy cyber threats.

What is DNS-over-TLS (DoT)?

Discover what DNS-over-TLS is, how it works, and why it protects your DNS privacy. Learn how to use DoT with Control D for full encryption and filtering.

Announcements

Updates – May 2025

May’s updates include a powerful DNS Leak Test tool, AI-generated Profiles, smarter analytics, faster rule management, and more.

Use Cases

How to Prevent Ransomware Attacks: 12 Proven Methods

Learn how to prevent ransomware attacks with this expert guide. Get step-by-step tips, DNS filtering advice, and threat prevention best practices.

What is DNS-over-HTTPS (DoH)?

Learn what DNS-over-HTTPS (DoH) is, how it works, and how to use it for secure, private internet browsing.

Cloudflare vs. WebTitan: What's the Better Choice?

Explore features, pricing, support, and analytics to see which DNS filtering solution fits your needs, as well as a better alternative to both.

Cloudflare vs. DefensX: Who Wins?

We compare features, analytics, support, and more to determine the best option for you, and introduce a third choice that outperforms both.

DNSFilter vs. NextDNS

See which DNS service wins in performance, features, analytics, pricing, and more – and why a third option may beat them both.

AdGuard DNS vs. Cisco Umbrella: What's the Better Choice?

Which solution offers superior pricing, features, support, and performance? We break it down and also explore a third contender worth considering.

Use Cases

How to Block Gambling Websites at Work, School, and on Public WiFi

Read a step-by-step guide of how to block gambling websites and content at your school, office, and public network.

Use Cases

What is DNS Hijacking? How to Detect & Prevent It

Read about DNS hijacking, how it works, ways to prevent it, and how Control D can help mitigate against DNS attacks.