NetToolkit Pro vs DNS Survey

NetToolkit Pro is a professional network toolbox for engineers and power users. Run multi-target Ping with real-time charts, detailed stats (min/avg/max, loss), and one-tap export for sharing or reports. Discover open services with a fast port scanner. Monitor host availability with ICMP/TCP/HTTP/HTTPS checks at custom intervals. Review Wi-Fi roaming as a clear timeline with dwell durations to track AP switching. Connect and troubleshoot devices using an SSH client with interactive terminal access for quick remote checks and maintenance. Explore nearby BLE devices with a Bluetooth scanner, view advertised services, and inspect GATT characteristics (read/notify/write) for debugging buttons, sensors, and peripherals. All data stays on-device for privacy. FEATURES • Multi-target Ping with visual line charts • Detailed stats and one-tap export for reporting • Fast smart port scanner • Scheduled uptime monitoring (ICMP / TCP / HTTP / HTTPS) • Wi-Fi roaming history with dwell analysis • SSH client with interactive terminal access • Bluetooth (BLE) scanner + GATT explorer (services/characteristics) • Clean, responsive UI with instant feedback • On-device data storage for privacy SUBSCRIPTION INFO • Title: Monthly Subscription — auto-renewable (1 month) • Title: Yearly Subscription — auto-renewable (1 year) • A one-time “Lifetime Unlock” is also available. • Payment is charged to your Apple ID at confirmation of purchase. • Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • You can manage or cancel your subscription at any time in your Apple ID settings. • Pricing varies by region. See in-app for current prices. Privacy Policy: https://privacy.dinghaishengshi.com/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

DNS Survey reads a domain's public DNS records and explains, in plain English, how that domain handles email. Type a domain and you get: • A plain-English summary — who hosts the mailboxes, whether sender authorisation (SPF) is published, whether an anti-spoofing policy (DMARC) is in place and how strict it is, and whether outgoing mail is signed (DKIM). • Third-party senders — the outside services allowed to send email as that domain, with the evidence for each. Shared sending platforms are labelled separately, because they prove mail is being sent without revealing which application sends it. • Vendors by category — products the domain shows evidence of using, from mailbox hosting and CRM to payments, security and developer tools, each shown with the record that identified it. • The raw records — SPF, DMARC, MX, NS, CNAME, A, TXT and DKIM, including SPF lookup-limit counting and DMARC policy warnings. Touch and hold to copy any value. Everything comes from public DNS. The app never connects to mail servers, sends email, or asks for credentials. Nothing is stored. No history, no cache, no account — a result exists only while you are looking at it. Detection is best-effort: a match on a verification token means the domain was verified with that service at some point, not that it is in use today.