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

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.
20 Jun 2025 9 min read
DNSFilter vs. SafeDNS

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.
13 Jun 2025 12 min read
how to force google safe search

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.
13 Jun 2025 8 min read
what is a dns error

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.
13 Jun 2025 7 min read
WebTitan vs. Cisco Umbrella

WebTitan vs. Cisco Umbrella

Compare Cisco Umbrella vs WebTitan on features, pricing, and performance to find the right DNS filtering solution for your business
06 Jun 2025 11 min read
How to Block Torrenting at Work, School, and on Public Wi-Fi

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.
06 Jun 2025 10 min read
DNS-over-TLS (DoT) vs DNS-over-HTTPS (DoH): What’s the Difference?

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.
06 Jun 2025 7 min read
How Do Schools Block Websites? A Complete Guide for 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.
30 May 2025 12 min read
DefensX vs. Cisco Umbrella

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.
30 May 2025 13 min read
What is a Zero-Day Attack? Complete Guide to Prevention

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.
30 May 2025 10 min read
What is DNS-over-TLS (DoT)?

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.
30 May 2025 9 min read
Control D updates may 2025
Announcements

Updates – May 2025

May’s updates include a powerful DNS Leak Test tool, AI-generated Profiles, smarter analytics, faster rule management, and more.
30 May 2025 4 min read
How to Prevent Ransomware Attacks: 12 Proven Methods
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.
29 May 2025 11 min read
What is DNS-over-HTTPS (DoH)?

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.
29 May 2025 11 min read
Cloudflare vs. WebTitan

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.
23 May 2025 12 min read
cloudflare vs defensx

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.
16 May 2025 12 min read
dnsfilter vs nextdns

DNSFilter vs. NextDNS

See which DNS service wins in performance, features, analytics, pricing, and more – and why a third option may beat them both.
16 May 2025 11 min read
AdGuard DNS vs. Cisco Umbrella: What's the Better Choice?

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.
16 May 2025 12 min read
How to Block Gambling Websites at Work, School, and on Public WiFi
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.
14 May 2025 4 min read
What is DNS Hijacking? How to Detect & Prevent It
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.
13 May 2025 4 min read
How to Block Porn & Adult Websites Across All Devices
Use Cases

How to Block Porn & Adult Websites Across All Devices

Learn how to block porn and adult websites across your office and corporate IT network. See how Control D prevents adult content from resolving.
13 May 2025 6 min read
nextdns vs. cloudflare

NextDNS vs. Cloudflare: How Do They Compare?

A deep dive into features, pricing, support, analytics, and performance, plus a look at a third option that might beat them both.
09 May 2025 11 min read
How to Secure Guest Wi-Fi Networks: A Complete Guide
Use Cases

How to Secure Guest Wi-Fi Networks: A Complete Guide

Learn how to secure your guest Wi-Fi network with DNS filtering, segmentation, captive portals, and encrypted traffic.
30 Apr 2025 8 min read
SMB Network Security Checklist: 11 Steps to Protect Your Business

SMB Network Security Checklist: 11 Steps to Protect Your Business

Protect your SMB with 11 actionable steps to secure devices, data, and users – including DNS-level protection with Control D.
30 Apr 2025 6 min read
DNS Filtering + CDN Strategy: How to Optimize Content Delivery and Security

DNS Filtering + CDN Strategy: How to Optimize Content Delivery and Security

Discover how DNS filtering enhances CDN performance, blocks malicious traffic, and ensures content reaches users faster.
30 Apr 2025 7 min read
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