Difference Wiki

OpenDNS vs. Cloudflare: What's the Difference?

Edited by Harlon Moss || By Janet White || Published on November 26, 2023
OpenDNS provides DNS resolution services and cybersecurity options, while Cloudflare offers a broader range of services including CDN, DNS, DDoS protection, and internet security.

Key Differences

OpenDNS specializes in DNS services with a focus on security and reliability. Cloudflare, while also offering DNS services, is more diverse, including content delivery network (CDN) services, DDoS mitigation, and website security.
OpenDNS is known for its advanced threat protection and phishing prevention through DNS. However, cloudflare offers a wider range of security services, such as DDoS protection, web application firewalls, and secure access services.
OpenDNS is recognized for its fast and reliable DNS resolution services. Whereas, cloudflare enhances website performance and speed through its global CDN and optimized routing.
OpenDNS caters to users seeking enhanced DNS security and parental controls. On the other hand, cloudflare targets a broader audience, including businesses needing website protection, performance enhancement, and reliable DNS services.
OpenDNS, founded in 2005, was acquired by Cisco in 2015. Meanwhile, cloudflare, established in 2009, has grown rapidly and offers a wide range of internet security and performance services.

Comparison Chart

Primary Service

DNS resolution and security
CDN, DNS, DDoS protection, security

Security Features

Advanced threat protection, phishing prevention
DDoS protection, web application firewalls


Fast DNS resolution
Website speed enhancement, global CDN

Target Audience

Individual users, families, small businesses
Businesses, website owners, developers

Company History

Founded in 2005, acquired by Cisco in 2015
Founded in 2009, independent company

OpenDNS and Cloudflare Definitions


A platform for parental control settings on internet access.
Parents use OpenDNS to filter inappropriate content online.


A provider of distributed DNS services.
Cloudflare's DNS service ensures our website is always accessible.


A service offering customizable DNS filtering.
OpenDNS allows businesses to block access to certain websites.


A web infrastructure and website security company.
Cloudflare provides DDoS protection for our website.


A DNS resolution service provider.
OpenDNS offers faster and more reliable internet browsing.


An internet services company enhancing online performance.
Cloudflare helps optimize our website's performance globally.


A cloud-based internet security service.
OpenDNS enhances security for remote workers.


A platform offering web application firewalls and security.
Cloudflare secures our web applications from cyber threats.


A company providing cybersecurity solutions.
OpenDNS's security features protect against phishing attacks.


A service offering content delivery network (CDN).
Cloudflare's CDN improves our website's loading speed.


Is OpenDNS suitable for individual users?

Yes, OpenDNS is well-suited for individuals and families for safer browsing.

What is OpenDNS?

OpenDNS is a DNS service provider offering internet security features.

What services does Cloudflare provide?

Cloudflare offers CDN, DNS, DDoS protection, and web security services.

How does OpenDNS enhance internet security?

OpenDNS provides threat protection and phishing prevention through DNS filtering.

Can Cloudflare improve website speed?

Yes, Cloudflare's CDN can significantly improve website loading speed.

Can OpenDNS filter content for kids?

Yes, OpenDNS provides parental controls for filtering internet content.

Does Cloudflare offer DNS services?

Yes, Cloudflare provides fast and secure DNS resolution services.

What is the Cloudflare CDN?

Cloudflare CDN is a network of servers that speeds up and protects websites.

How does Cloudflare protect against DDoS attacks?

Cloudflare mitigates DDoS attacks by distributing traffic across its global network.

Can Cloudflare services be customized?

Yes, Cloudflare offers customizable solutions for different business needs.

Who uses Cloudflare's services?

Cloudflare's services are used by businesses, website owners, and developers.

How does OpenDNS support remote work?

OpenDNS secures internet access for remote workers with its cloud-based security.

What type of support does OpenDNS offer?

OpenDNS provides customer support and resources for its users.

Is Cloudflare a global service?

Yes, Cloudflare operates globally with data centers around the world.

What security services does Cloudflare offer?

Cloudflare offers DDoS protection, secure web gateways, and firewall services.

Can OpenDNS block specific websites?

Yes, OpenDNS allows users to filter and block access to certain websites.

Who can benefit from using OpenDNS?

OpenDNS benefits individual users, families, and small businesses focused on internet safety.

Is OpenDNS free to use?

OpenDNS offers both free and premium subscription plans.

What makes OpenDNS unique in DNS services?

OpenDNS's focus on security and content filtering distinguishes it in DNS services.

Does Cloudflare have a firewall?

Yes, Cloudflare offers a web application firewall for online security.
About Author
Written by
Janet White
Janet White has been an esteemed writer and blogger for Difference Wiki. Holding a Master's degree in Science and Medical Journalism from the prestigious Boston University, she has consistently demonstrated her expertise and passion for her field. When she's not immersed in her work, Janet relishes her time exercising, delving into a good book, and cherishing moments with friends and family.
Edited by
Harlon Moss
Harlon is a seasoned quality moderator and accomplished content writer for Difference Wiki. An alumnus of the prestigious University of California, he earned his degree in Computer Science. Leveraging his academic background, Harlon brings a meticulous and informed perspective to his work, ensuring content accuracy and excellence.

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