Monday, November 5, 2018

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

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 19 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.

Featured Post

Per DNS specifications (RFCs), a domain cannot have a CNAME record and another DNS record of a different type if both records would share the same name.

DNS RFCs also require an MX record to correspond to a related A record and not a CNAME. This is problematic when you need a CNAME for your ...