DNS Spy vs Paessler PRTG Network Monitor
DNS Spy
dnsspy.io
Paessler PRTG Network Monitor
paessler.comSide by side
| Figure | DNS Spy | Paessler PRTG Network Monitor |
|---|---|---|
| Price from | $9/mo | $16.67/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 2 | 6 |
| Spec score · DNS Monitoring Software | 8.0 (#16) | 8.2 (#11) |
| API | The Enterprise REST API provides 50+ endpoints, bearer-token authentication, and 10,000 calls per month. | PRTG provides an API for accessing monitoring data and developing custom features. |
| Intended users | DNS Spy describes its product as suitable for individuals and small projects, and says Enterprise supports teams, organizations, MSPs, and agencies managing client domains. | Paessler describes PRTG Network Monitor as best suited to small and medium IT infrastructures, with features also for OT and IoT environments. |
| Purpose | DNS Spy monitors DNS records from worldwide resolvers, tracks domain and SSL expirations, audits security, and detects look-alike phishing domains. | PRTG Network Monitor monitors systems, devices, network traffic, applications, and other infrastructure metrics from an on-premises installation. |
Plans
Paessler PRTG Network Monitor
- Freeware EditionFree
- PRTG 500$200 a year
- PRTG 1000$358 a year
- PRTG 2500$742 a year
- PRTG 5000$1,300 a year
- PRTG 10000$1,642 a year
In their own words
Paessler PRTG Network Monitor
Paessler PRTG Network Monitor monitors systems, devices, network traffic, applications, and other infrastructure metrics from an on-premises installation. It runs on Windows servers and includes more than 250 preconfigured sensors, each measuring one or more aspects of a device. Monitoring tools include customizable alerts, scheduled reports, distributed monitoring, and dashboards with live status information. Paessler also lists adaptive AI-driven anomaly detection and smart sensor recommendations. PRTG provides an API for monitoring data and custom features, and can send webhook notifications to Slack and Microsoft Teams. Its free iOS and Android apps display monitoring data and send push notifications, but do not support cluster setups. The free plan covers up to 100 sensors; paid plans start at $200 per month paid annually. Each server accepts one license key, so license sizes cannot be combined on a server.