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Head-to-head · DNS Monitoring Software

DNS Spy vs OneDollarDNS

  • Updated Nov 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score DNS Spy #3 in DNS Monitoring Software 9.1/10 7-day trial Free trial✓ 4 of 4 features Visit DNS Spy
OneDollarDNS #8 in DNS Monitoring Software 8.4/10 14-day trial Free trial✓ 3 of 4 features Visit OneDollarDNS

DNS Spy leads on 1 check, OneDollarDNS on 0, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreDNS Spy · 9.1/10
  • Free trialboth
  • Most featuresDNS Spy · 4 of 4

DNS Spy scores higher on our rubric for dns monitoring software: 9.1 against 8.4 out of 10; our editors rank them #3 and #8.

DNS Spy offers propagation checks; OneDollarDNS doesn't.

DNS Spy is the better fit for teams needing comprehensive DNS oversight. OneDollarDNS is the better fit for small portfolios needing inexpensive monitoring.

  • DNS Spy fits best

    Teams needing comprehensive DNS oversight

  • OneDollarDNS fits best

    Small portfolios needing inexpensive monitoring

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature DNS Spy 9.1/10 Visit ↗ OneDollarDNS 8.4/10 Visit ↗
At a glance
Editor score 9.1 8.4
Ranking #3 in DNS Monitoring Software #8 in DNS Monitoring Software
Best for Teams needing comprehensive DNS oversight Small portfolios needing inexpensive monitoring
Pricing model Paid Paid
Starting price — $1/unit/mo
Free plan — —
Free trial 7 days 14 days
Free trial length 7 days · no card needed 14 days · no card needed
Deployment Cloud Cloud
Platforms Web Web
Support Email Email, Docs
Compliance 2FA 2FA
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business
Features DNS Spy 4/4 · OneDollarDNS 3/4
Resolution checks ✓ ✓
Propagation checks ✓ (best) —
Record-change alerts ✓ ✓
Nameserver health checks ✓ ✓
Specs
Check interval Not checked yet 60 minutes
Query locations Not checked yet Not checked yet
Alert channels email, Slack, Discord, PagerDuty, webhooks, syslog email, Slack, Discord, webhook, additional email addresses
Our review
Pros
  • Monitors authoritative DNS records, changes, inconsistencies, and history
  • Combines expiration tracking, propagation checks, and 30+ security checks
  • Supports Cloudflare, Route 53, Slack, PagerDuty, APIs, and webhooks
  • Starts at $1 per domain per month with hourly checks
  • Before-and-after alerts cover major DNS record types
  • Automatic host discovery and BIND zone-file import support
Cons
  • No free plan; access begins with a paid Personal plan
  • Advanced audits, phishing protection, and team controls require Enterprise
  • The focus is DNS and domain oversight rather than general infrastructure monitoring
  • Propagation checks across multiple locations are not included
  • Five-minute checks require a separate paid add-on
  • Slack, Discord, and webhook alerts require another add-on
Our verdict

DNS Spy is a web and API service for monitoring DNS records across authoritative nameservers. It is designed for individual domain owners, small businesses, MSPs, agencies, infrastructure teams, and enterprises managing domain portfolios.…

Read the review →

OneDollarDNS monitors DNS records across multiple domains and alerts users when records are added, removed, or modified. It is aimed at small portfolios that need inexpensive oversight of authoritative DNS without per-host billing. The…

Read the review →
  1. DNS SpyDNS Monitoring Software 9.17-day trial
  2. OneDollarDNSDNS Monitoring Software 8.414-day trial

Strengths and trade-offs

  • DNS Spy — where it wins

    • Monitors authoritative DNS records, changes, inconsistencies, and history
    • Combines expiration tracking, propagation checks, and 30+ security checks
    • Supports Cloudflare, Route 53, Slack, PagerDuty, APIs, and webhooks

    Where it doesn't

    • No free plan; access begins with a paid Personal plan
    • Advanced audits, phishing protection, and team controls require Enterprise
    • The focus is DNS and domain oversight rather than general infrastructure monitoring
  • OneDollarDNS — where it wins

    • Starts at $1 per domain per month with hourly checks
    • Before-and-after alerts cover major DNS record types
    • Automatic host discovery and BIND zone-file import support

    Where it doesn't

    • Propagation checks across multiple locations are not included
    • Five-minute checks require a separate paid add-on
    • Slack, Discord, and webhook alerts require another add-on

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

Last updated · How we research and update