Best Secure DNS Providers in 2026
Cloudflare 1.1.1.1, Google 8.8.8.8, Quad9, NextDNS, and Mullvad DNS — a comprehensive comparison for Hong Kong users seeking fast, private, and secure DNS resolution.
Cloudflare 1.1.1.1, Google 8.8.8.8, Quad9, NextDNS, and Mullvad DNS — a comprehensive comparison for Hong Kong users seeking fast, private, and secure DNS resolution.
Cloudflare's 1.1.1.1 DNS resolver is the most popular privacy-respecting DNS service in the world, serving hundreds of billions of queries daily. Launched in 2018, 1.1.1.1 was the first major DNS provider to offer both DNS-over-HTTPS and DNS-over-TLS with a strong, independently verified privacy commitment. Cloudflare commits to never logging querying IP addresses to disk, never selling DNS data, and wiping all transaction logs within 24 hours. This policy has been independently audited by KPMG, providing external verification that sets 1.1.1.1 apart from most DNS providers whose privacy claims are self-reported.
for Hong Kong Online Banking: What You Need to Know">for Hong Kong Online Banking: A Complete Guide">for Hong Kong SMEs: Where to Start">For Hong Kong users, the performance of 1.1.1.1 is exceptional. Cloudflare operates DNS servers in Hong Kong (in the HKIX internet exchange) and across the Asia-Pacific region, resulting in query response times typically between 1–5 milliseconds for HK-based users. This is significantly faster than many users' ISP DNS servers and dramatically faster than resolvers located outside Asia. Fast DNS resolution contributes to faster perceived page load times, as every new domain in a page — ad servers, CDN providers, third-party scripts — requires a DNS lookup before the Difference and the Connection">the connection can be established.
Cloudflare also offers 1.1.1.2 (malware blocking) and 1.1.1.3 (malware and adult content blocking) as variants of its base DNS service. These filtered variants use the same infrastructure and privacy guarantees as 1.1.1.1 but automatically block DNS resolution for domains in Cloudflare's threat intelligence database, preventing accidental connections to known malware distribution sites and phishing pages. For families and business users who want DNS-level security filtering alongside privacy, 1.1.1.2 is a strong choice that requires zero client-side configuration beyond changing the DNS server address.
Quad9 (9.9.9.9) is operated by the Quad9 Foundation, a Swiss non-profit organisation, with a mission specifically focused on improving internet security and privacy for all users. Unlike Cloudflare (a for-profit company) or Google (an advertising company), Quad9 has no commercial interests in DNS data — its non-profit status and Swiss jurisdiction provide additional structural protections against data commercialisation and are somewhat more insulated from US government data requests than US-based providers.
Quad9's distinguishing feature is its built-in threat intelligence filtering. On every DNS query, Quad9 checks the requested domain against a composite threat intelligence feed compiled from over 25 cybersecurity partners including IBM X-Force, ESET, Abuse.ch, and others. If the domain is found in these threat intelligence databases — as a malware distribution site, command-and-control server, phishing domain, or botnet infrastructure — Quad9 blocks the DNS resolution and returns no IP address, preventing the connection from being established. This blocking occurs transparently without any client-side software, protecting all devices on a network that uses Quad9 as its DNS server.
For Hong Kong businesses and organisations concerned about malware incidents, Quad9 provides enterprise-grade threat intelligence blocking at zero cost. The service blocks millions of malicious domain lookups per day across its global user base, and the threat intelligence feeds are continuously updated as new threats are identified. Quad9 also offers a non-filtering variant (9.9.9.10) for organisations that want Quad9's privacy protections without the security filtering. Both variants support DoH and DoT, with DoH available at https://dns.quad9.net/dns-query.
NextDNS is a cloud-based, configurable DNS filtering and privacy service that provides levels of customisation previously only available in self-hosted solutions like Pi-hole. Users can configure custom block lists from an extensive library including OISD, AdGuard DNS filter, Steven Black's hosts, and dozens of others. Parental controls allow time-based restrictions and content category blocking. Security filtering covers malware, phishing, and typosquatting domains. Per-device configuration enables different settings for children's devices versus adults' devices on the same network — all managed through a clean web interface.
The analytics dashboard is one of NextDNS's most compelling features for privacy-conscious users. It shows a real-time log of every DNS query made on your network or device, including which queries were blocked and why. This visibility into DNS activity across your household is unique among DNS providers and allows users to understand exactly what their devices are connecting to — including the surprising volume of background DNS queries made by smart TVs, gaming consoles, and IoT devices. Privacy-sensitive users can configure NextDNS to anonymise logs by country-level IP rather than full IP, or disable logging entirely.
NextDNS's free tier allows up to 300,000 queries per month, which is sufficient for most individual users. Paid plans start at approximately HK$38/month (USD $1.99/month) for unlimited queries with full features — a very reasonable price for the level of customisation and analytics provided. NextDNS supports DoH, DoT, and DNS over QUIC protocols, and provides native apps for iOS, Android, Windows, and macOS that make setup extremely straightforward. For power users and families who want to understand and control their DNS traffic, NextDNS provides capabilities that Cloudflare and Quad9 simply do not offer.
Google Public DNS (8.8.8.8 and 8.8.4.4) is the most widely used public DNS resolver in the world and provides excellent performance — often among the fastest available for HK users. However, it is fundamentally incompatible with privacy goals. Google logs DNS queries and associates them with users' Google accounts or, for non-logged-in users, with long-lived pseudonymous identifiers. This data is retained for 24–48 hours in full form and for longer in aggregated form. Given that DNS queries represent a complete map of your internet activity, providing this data to Google — whose business model is advertising — is directly contrary to the goal of reducing Google's surveillance of your behaviour.
Your ISP's default DNS resolver is the worst option from a privacy perspective. ISPs in Hong Kong routinely retain DNS query logs for extended periods and may be legally compelled to share this data. ISP DNS servers are also the most common target for DNS spoofing attacks because they handle high volumes of unencrypted queries from known customer IP addresses, making them a valuable target for attack. Switching away from your ISP's DNS server to any of the providers described in this article is a meaningful privacy improvement regardless of which one you choose.
For the highest level of privacy at the DNS level, Mullvad DNS (194.242.2.2) is worth considering — it is operated by the privacy-focused VPN provider Mullvad, supports DoH and DoT, and as of 2026 offers variants that block ads and trackers at the DNS level. Mullvad's operational security practices and explicit privacy mission make it a credible choice. Self-hosted DNS solutions like Pi-hole or AdGuard Home, combined with a private upstream resolver (Cloudflare or Quad9), provide the maximum level of control and transparency for users willing to invest the time in setup and maintenance. Ultimately, any of Cloudflare, Quad9, or NextDNS represents a substantial privacy improvement over Google or ISP DNS for Hong Kong users.
