# DNS change monitoring and alerting service

A subscription tool that watches DNS zones for changes and alerts the owner, keeping a revision history. Aimed at people who manage DNS for clients.

| Tag | Value | Confidence |
|---|---|---|
| Category | Software and apps | 89% |
| Earns from | Subscriptions | 96% |
| Startup cost (estimate) | $1k to $10k | 55% (low) |
| Time (estimate) | Hands-off | 60% (low) |
| Where | Online | 99% |
| Coding | Needs coding | 98% |

Source: [Ask HN: What was your best passive income in 2016?](https://news.ycombinator.com/item?id=13150224), Hacker News, tomschlick, 2016-12-11
Page: https://allsidehustleideas.com/ideas/dns-change-monitoring-and-alerting-service-974267

## About this data

- Sources are public, first-person accounts: interviews, podcasts and community threads.
- Cost, time and the other tags are machine estimates, each with a confidence score.
- Income figures are the owner's own claim. We don't verify them.
- Link the idea page and its source. Call income figures the owner's unverified claim, and cost and time estimates.