DNS Kit vs NetDebug Toolkit

DNS Kit helps developers, IT professionals and website owners investigate DNS and email configuration from their iPhone. DNS AND EMAIL DIAGNOSTICS Look up A, AAAA, CNAME, MX, TXT, SOA and PTR records. Inspect SPF and DMARC, discover common DKIM selectors, and review findings with explanations. A DKIM record that is not discovered is shown as unconfirmed, rather than proof that signing is broken. DNS PROPAGATION Compare answers from 35+ public resolvers, view captured responses on a map, and track an expected value or resolver agreement. Resolver locations identify the resolver services; checks are not independent probes running in each city. SAVED DOMAINS AND MONITORING Keep your domains together and see which findings need attention. Create health or propagation monitors, receive push alerts, and inspect the evidence from previous checks. Saving a domain and enabling monitoring are separate actions. FREE TO USE Manual tools and explanations remain free. Guest accounts include 2 monitors; signing in includes 5 monitors, hourly checks and the latest 11 checks per monitor. OPTIONAL DNS KIT PRO Upgrade to up to 100 monitors, checks as often as every 5 minutes, and the latest 100 checks per monitor. Choose a monthly or annual auto-renewing subscription. Prices and billing periods are shown before purchase. Timing can vary during outages or heavy load. Saved history builds from future checks. Subscriptions renew automatically unless cancelled in your Apple account settings. When Pro expires, retained monitors return to hourly checks and newer monitors beyond the free allowance pause. Monitor definitions are not deleted. Privacy: https://dnskit.dev/privacy Terms: https://dnskit.dev/terms Apple standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

NetDebug Toolkit is the all-in-one network diagnostics suite for developers, sysadmins, IT teams, and power users. 20 pro-grade tools on iPhone, iPad, and Apple TV. Fast. Focused. No account. No tracking. Diagnose connectivity, DNS, routing, ports, certificates, throughput, and local-network services from one clean interface: NETWORK CORE • Ping : ICMP or HTTP HEAD reachability with timing and packet-loss stats • Traceroute : hop-by-hop route inspection • HTTP(S) Check : status, redirect chain, headers, TLS summary • Speed/Latency Baseline : download/upload presets from 1 MB to 64 MB • iperf3 Client : TCP throughput against an external iperf3 server (upload or download) • Public IP + Geo / ASN / ISP : current WAN IP with carrier and location detail • Path MTU Discovery : largest packet a route carries, black-hole detection, the constricting hop, and safe inner MTU for VPN DNS & DOMAIN • DNS Lookup : forward (host to A/AAAA) and Reverse DNS (IP to PTR), auto-detected from input • DNS Record Explorer : A, AAAA, CNAME, MX, TXT, NS, SRV via DNS-over-HTTPS (custom resolver supported) • Whois : RDAP or IANA WHOIS mode, with chained referrals SECURITY & TLS • TLS Certificate Inspector : full chain, validity, SANs, signature algorithm, weak-cert signals • Subnet Calculator : IPv4 and IPv6, usable host range, broadcast, gateway hints PORTS & CONNECTIVITY • Port Scan : custom ports or ranges • TCP/UDP Connect : per-port reachability with built-in UDP profiles (DNS, NTP, SNMP, SIP, RADIUS, TFTP, memcached) • NTP Time Check : clock offset vs. any NTP server with delay, stratum, and leap details • External Port Check : "can the internet reach me?" TCP port-forwarding test from an outside server (open/closed/filtered) • Run History & Trends : every run is saved on-device with charts of latency, speed, and more over time (free; longer retention with a purchase) LOCAL NETWORK • LAN Scan : fast or deep subnet host discovery • mDNS / Bonjour Browser : AirPlay, HomeKit, Matter, printers, SMB, SSH, and more • UPnP / NAT-PMP Discovery : router gateway port-mapping introspection • Wake-on-LAN Sender : send magic packets to wake compatible devices POWER-USER WORKFLOW • Saved Hosts : store frequently used IPs, hostnames, and MAC addresses with per-host tool defaults • My Automation : chain multiple tools into one-tap workflows with a combined PDF, PNG, or text run report • Export & Import : portable JSON files for automations and saved hosts (iOS share sheet, tvOS QR-code download) • Universal Links & Deeplinks : open any tool from a URL with pre-filled inputs, auto-run, and auto-export, e.g. https://netdebug.developerinsider.co/open/ping?target=1.1.1.1&export=pdf • Copy Deeplink : every tool and saved automation can copy its own shareable Universal Link • Built-in tool docs : quick-reference markdown for every tool APPLE TV / tvOS • Full feature parity : every tool, Saved Hosts, My Automation, and all three in-app purchases ship on Apple TV • LAN-only QR-code export : Apple TV serves run reports and JSON exports over a one-shot HTTP server; scan the QR with your phone to download LOCALIZED IN 21 LANGUAGES English, Arabic, Bengali, Chinese (Simplified), Dutch, French, German, Hindi, Hinglish, Indonesian, Italian, Japanese, Korean, Polish, Portuguese (Brazil), Russian, Spanish, Thai, Turkish, Ukrainian, Vietnamese. OPTIONAL IN-APP PURCHASES One-time, non-consumable, with Family-Sharing support and a single Restore Purchases action: • Remove Ads : disable all banner and interstitial ads • Unlimited Automations : lift the free-tier limit • Remove Ads + Unlimited Automations bundle : discounted starter pack Important: Use only on systems and networks you are authorized to test. Results are best-effort and may vary by network conditions, target configuration, and third-party service availability. Questions or bug reports? https://netdebug.app/support.html