Freedom251 › DNS Monitoring Software
OneDollarDNS
What OneDollarDNS is
OneDollarDNS is a web service that monitors domain DNS records and alerts you when they change. It checks A, AAAA, CNAME, MX, NS, TXT, CAA, and SRV records, comparing snapshots over time and recording additions, removals, and modifications in alert history. Domains are checked hourly by default, while a Frequent Monitoring add-on enables five-minute checks for up to 50 Priority Hosts per domain. Queries go directly to authoritative nameservers. You can import hostnames through Cloudflare, DigitalOcean, GoDaddy, Namecheap, or Porkbun, or load a BIND-format zone file up to 512 KB. Alerts use email, with Slack, Discord, HTTPS webhooks, and extra verified email addresses available through Team Notifications. Domain monitoring costs $1 a month per active domain. Frequent Monitoring costs $1 a month per domain, and Team Notifications costs $5 a month per account. A 14-day, no-card trial covers up to three domains; there is no free plan.
Who it suits
It suits developers, indie SaaS owners, small businesses, and agencies that need recurring DNS change and nameserver monitoring. It is accessed through the web.
What it does well
- Monitors eight listed DNS record types
- Hourly checks with optional five-minute monitoring
- Queries authoritative nameservers directly
- Supports Slack, Discord, webhooks, and email
- Imports hosts from five DNS providers
What to know first
- No free plan
- Does not host or manage DNS
- Five-minute checks require an add-on
- Zone file imports capped at 512 KB
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Domain monitoring | Per active domain; charged at the start of each billing period. · Hourly checks · As many domains as needed · No per-host billing | $1 a month |
| Frequent Monitoring add-on | Per domain, added to domain monitoring price. · Up to 50 Priority Hosts per domain · Checks every 5 minutes | $1 a month |
| Team Notifications add-on | Flat account-level charge, regardless of monitored domain count. · Slack · Discord · Webhooks · Additional email recipients | $5 a month |
As onedollardns.com lists them, read 8 Oct 2026. The maker's own page has the final word.
Verdict
OneDollarDNS focuses on detecting DNS changes and checking authoritative nameservers rather than managing DNS. Its hourly baseline, optional faster checks, provider imports, and multiple alert channels fit teams that need ongoing visibility into domain records.
Facts from OneDollarDNS's own pages
- Alert integrations
- The Team Notifications add-on routes alerts to Slack, Discord, HTTPS webhooks, and additional verified email addresses. · onedollardns.com, 8 Oct 2026
- Authoritative DNS checks
- Monitoring queries authoritative nameservers directly rather than relying on cached resolvers. · onedollardns.com, 8 Oct 2026
- Change history
- DNS snapshots are compared over time, and detected additions, removals, and modifications are recorded in alert history. · onedollardns.com, 8 Oct 2026
- Check frequency
- Domains are checked hourly by default, with 5-minute checks available for up to 50 Priority Hosts per domain through the Frequent Monitoring add-on. · onedollardns.com, 8 Oct 2026
- DNS provider integrations
- Provider Sync supports Cloudflare, DigitalOcean, GoDaddy, Namecheap, and Porkbun for importing hostnames. · onedollardns.com, 8 Oct 2026
- Intended customers
- The maker describes the service as intended for developers, indie SaaS owners, small businesses, and agencies monitoring DNS changes. · onedollardns.com, 8 Oct 2026
- Payments
- Stripe processes payments, and OneDollarDNS says it does not store full card details. · onedollardns.com, 8 Oct 2026
- Provider credentials
- The service recommends scoped or read-only provider tokens, and says stored provider credentials are encrypted at rest and used to read DNS records. · onedollardns.com, 8 Oct 2026
- Purpose
- OneDollarDNS monitors domain DNS records and alerts customers when records change; it does not host or manage DNS. · onedollardns.com, 8 Oct 2026
- Record types
- It monitors A, AAAA, CNAME, MX, NS, TXT, CAA, and SRV records. · onedollardns.com, 8 Oct 2026
- Security
- The security page says connections use HTTPS, sensitive data is encrypted at rest, passwords are hashed, and two-factor authentication is available. · onedollardns.com, 8 Oct 2026
- Support
- The documentation directs customers to email support for help. · onedollardns.com, 8 Oct 2026
- Trial limits
- The 14-day trial requires no credit card and supports up to three domains. · onedollardns.com, 8 Oct 2026
- Zone file import
- Customers can import hosts from BIND-format zone files, which must be no larger than 512 KB. · onedollardns.com, 8 Oct 2026
Where OneDollarDNS stands on Freedom251
- DNS Monitoring Software#37 of 39