Table of Contents

Upstream DNS Providers

Your CSB uses an external “upstream” DNS servers to resolve DNS queries.

Several of these offer privacy by never logging your IP address or any other personal identifiable information (PII).

Several of these also offer Malware and Adult content blocking. They typically are not as encompassing as CSB for these categories, but they are excellent for adding an additional layer of protection.

🆓 All of these are free to use.

We strongly recommend Quad9 for use as your CSB upstream DNS server.


Quad9 ( Our #1 Pick) ⭐️⭐️⭐️

Quad9 is secure and fast, however they do not offer adult content filtering. If you do not care about the upstream DNS server blocking adult content, we recommend Quad9. Otherwise we recommend using the CloudFlare Malware and Adult Content option.

Filtered DNSSEC

Malware blocking, secure DNSSEC
⭐️ We recommend these settings for general use

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
9.9.9.9149.112.112.1122620:fe::fe2620:fe::9

Open

Not Filtered, no DNSSEC or EDNS

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
9.9.9.10149.112.112.10620:fe::10620:fe::fe:10

Filtered EDNS, DNSSEC

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
9.9.9.11149.112.112.11620:fe::11620:fe::fe:11

CloudFlare DNS (Our #2 Pick) ⭐️

CloudFlare will never log your IP address and are rated as the fastest DNS service in the world. If extra adult content blocking is important to you for your upstream DNS server, we recommend using the CloudFlare Malware and Adult Content option.

❗️Please note, we have encountered several false positives using the CloudFlare malware blocking version. One of these was eBay! If you experience website blocking, it may actually be blocked by Cloudflare and not your CSB.

Open - No Blocking

🚫 We recommend you use one of the filtered options below.

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
1.1.1.11.0.0.12606:4700:4700::11112606:4700:4700::1001

Malware Blocking Only

⭐️ We recommend these settings for general use

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
1.1.1.21.0.0.22606:4700:4700::11122606:4700:4700::1002

Malware and Adult Content

⭐️ We recommend these settings for kids and families.

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
1.1.1.31.0.0.32606:4700:4700::11132606:4700:4700::1003

Google DNS

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
8.8.8.88.8.4.42620:119:35::35 2620:119:53::53

OpenDNS Home (Cisco)

Open

Includes a phishing filter.

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
208.67.222.222208.67.220.2202620:119:35::352620:119:53::53

FamilyShield

Includes pornography, tasteless, and sexuality filters categories, as well as proxies and anonymizers, phishing and some malware.

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
208.67.222.123208.67.220.123 - -

Level3 DNS

No filtering - Redirects mistyped URLs to a search.

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
4.2.2.14.2.2.2 - -

Comodo Secure DNS

Filters “harmful” websites.

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
8.26.56.268.20.247.20 - -

DNS.WATCH

No filtering

Primary IPv4 Secondary IPv4 Primary IPv6 Secondary IPv6
84.200.69.8084.200.70.402001:1608:10:25::1c04:b12f 2001:1608:10:25::9249:d69b (IPv6)