Your work is extremely important. Thank you for fighting for an open and free internet – for everyone.

Quad9 is a free, recursive, anycast DNS resolver providing end users robust security protections, high performance, and privacy.

Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high performance, and privacy.

Security: Quad9 blocks against known malicious domains, preventing your computers and IoT devices from connecting to malware or phishing sites. Whenever a Quad9 user clicks on a website link or types in an address into a web browser, Quad9 checks the site against a list of domains combined from 20+ different threat intelligence partners. Each threat intelligence partner supplies a list of malicious domains based on their heuristics which examine such factors as scanned malware discovery, network IDS past behaviors, visual object recognition, optical character recognition (OCR), structure and linkages to other sites, and individual reports of suspicious or malicious behavior. Based on the results, Quad9 resolves or denies the lookup attempt, preventing connections to malicious sites when there is a match.

Performance: Quad9 systems are distributed worldwide in over 200 locations in 90 nations, with more coming online daily. These servers are located primarily at Internet Exchange points, meaning that the distance and time required to get answers is lower than almost any other solution. These systems are distributed worldwide, not just in high-population areas, meaning users in less well-served areas can see significant improvements in speed on DNS lookups. The systems are “anycast,” meaning that queries will automatically be routed to the closest operational system.

Quad9

Education

Discover nonprofits supporting science and technology.

Join us in supporting science and technology nonprofits.

Science & Technology

1279515062

148788709

1524399316

control

167058366

1873740264

188270313

2052641908

2088874155

We are a nonprofit, so instead of charging fees we rely on the generosity of donors like you.

Choose a donation for Every.org

2140519340

2183212369

2269066361

2310049938

2477281247

2551237796

2774030336

2880853031

2883383521

2899462032

316638097

3323783059

3381177838

338811242

3545345297

3705164611

3842241318

3934974605

4167807122

506613571

1287028958

1858760411

2104603717

225261647

2407957277

2729980760

2939442496

3440869557

4143568784

434649596

671754822

87081813

99361

1014384873

1112422858

153399038

2028390811

220342792

2266630408

2519810400

2539558839

2826465835

2843798242

2898624300

3259439560

339774024

3642494300

3902459442

4250940449

472232120

585491400

641510716

91682487

Quad9

Join Jakob to support Quad9

Join Jakob to support Quad9

Quad9

Donors

Become a supporter!

Become a supporter!

Turn this donation into a movement

Quad9

.css-1o4xpbk-UserDonationPage--css{width:100%;}.css-eiin6b-UserDonationPage--css{display:inline-block;--textSize:1.25rem;--lineHeight:1.5rem;line-height:var(--lineHeight);font-size:var(--textSize);width:100%;}Quad9

Join Jakob to support Quad9

Join Jakob to support Quad9

Quad9

Donors

Become a supporter!

Become a supporter!

Turn this donation into a movement

Quad9

Quad9