ADFastDNS

ADFastDNS – DNS Proxy, Ad Blocker & Advanced Threat Detection

The only iOS app combining blazing-fast DNS acceleration, system-wide ad blocking, and a professional-grade network threat detection engine all processed entirely on your device. No accounts. No logs. No compromise.

Host Intrusion Detection System (HIDS)

-ADFastDNS goes far beyond DNS filtering with a multi-layer threat detection engine that analyses your network traffic in real time without decrypting or inspecting private content.

-Beacon Guard builds a persistent memory of connection patterns across sessions, detecting malware and spyware that communicate with remote servers at regular intervals even across network changes and IP rotations. A technique used by sophisticated implants that evades every other consumer iOS security tool.

-TLS Anomaly Detection scores every encrypted connection across fifteen independent indicators, correlating the TLS handshake with the server's response to identify suspicious negotiation patterns, cipher anomalies, and cryptographic fingerprints inconsistent with legitimate iOS apps.

-Hello Packet Anomaly Detection uses JA4 fingerprinting , a professional-grade cryptographic identification technique, to classify the TLS stack behind every connection and block known malicious fingerprints before any data is transmitted.

-Anti-Malware & Anti-Spyware protection with comprehensive blocking lists to defend against sophisticated threats.
-IP & Geo Firewall — blacklist any IP or set blocking rules per country, just like a professional network firewall.
-TLS-SNI Validation blocks connections where the TLS hostname mismatches the destination IP, stopping domain fronting and SNI spoofing attacks.
-DNS Tunnel Protection prevents attackers from using DNS queries to exfiltrate data or establish covert command-and-control channels.
-DNS Rebinding Protection stops malicious websites from using your browser to attack local devices on your network.
- DNS Exfiltration protection, detecting any connections attempting to smuggle data through malformed DNS queries, bypassing HTTP tracking detection
-JA4 Blocklist — industry-standard TLS fingerprint blocking updated continuously against known malware frameworks.

Advanced Anti-DPI Engine
Powerful censorship resistance built for the most restrictive networks.
Hello Packet Fragmentation intelligently splits TLS ClientHello packets at both TCP and TLS level to defeat SNI-based blocking. Enhanced obfuscation techniques work seamlessly alongside all DoH and filtering features.

Core Features

-DNS over HTTPS & DNS over QUIC (HTTP/3)
-Cloudflare, Google, AdGuard, NextDNS or any custom DoH endpoint
-System-wide ad & tracker blocking with your favourite filter lists
-On-device DNS cache for instant responses
-Per-domain HTTPS proxy routing with Fast Bypass
-WiFi whitelist exclude trusted SSIDs automatically
-Local DNS resolver works like a device-level hosts file
-Real-time statistics blocked queries, top domains, threat events
-iCloud sync of all rules and settings
-Zero logging · Zero data collection · Zero external servers
- Extend ADFastDNS filtering to any device on your network by directing its SOCKS5 proxy to your ADFastDNS device



Why ADFastDNS?
Unlike traditional VPNs that slow you down and drain your battery, ADFastDNS works at the DNS and transport layer, faster, lighter, and virtually invisible. The same threat detection capabilities found in enterprise network security tools, rebuilt from the ground up for the iOS sandbox.

Try free for 7 days — then unlock forever with a one-time purchase.
Download ADFastDNS and take back control of your network.