DNS monitoring tools fall into two categories: general uptime monitors that include DNS as a feature, and dedicated DNS monitoring services built specifically for record-change detection. Both have their place, but they solve different problems.
General uptime monitors tell you when your domain is unreachable. Dedicated DNS monitors tell you when your DNS records change — which is often what caused the outage in the first place. This comparison covers both.
| Tool | Starting price | DNS change alerts | Record types | Best for |
|---|---|---|---|---|
| DNS Made Easy | $29.95/mo | ✅ Yes | All types | Enterprise DNS + monitoring |
| UptimeRobot | Free / $7/mo | ⚠️ Limited | A record only | Basic HTTP + DNS uptime |
| HetrixTools | $10/mo | ✅ Yes | A, AAAA, MX, TXT | Server + infrastructure monitoring |
| Pingdom | $15/mo | ❌ No | Uptime only | Website performance + uptime |
| DNSWatch | $9/mo (early access) | ✅ Yes | All types | Indie devs, startups, simple setup |
DNS Made Easy is primarily a managed DNS provider — you host your DNS zones there — but it includes real-time DNS monitoring as part of the package. It watches all record types across multiple anycast locations and sends alerts when a record changes or resolves incorrectly.
Pros: comprehensive monitoring across all record types, enterprise-grade reliability, integrated with their DNS hosting so changes and alerts are in one place.
Cons: you have to migrate your DNS hosting to use it, which is a significant commitment. Overkill for smaller sites. Minimum $29.95/month.
Best for: teams that already use or plan to use DNS Made Easy for DNS hosting and want monitoring as a built-in feature.
UptimeRobot is the most widely used uptime monitor for indie developers and small teams. The free tier checks up to 50 HTTP endpoints every 5 minutes. It includes a "DNS monitor" type, but this only checks whether a domain resolves to an expected IP — it's resolution uptime, not record-change monitoring.
Pros: excellent free tier for basic HTTP uptime; very simple setup; integrates with Slack, email, webhook; large community with good documentation.
Cons: the DNS monitor is limited to A record resolution checks. It won't detect MX, TXT, CNAME, or NS changes. It's uptime monitoring, not change monitoring.
Best for: teams that need HTTP uptime monitoring and want basic "is my domain resolving?" checks. Not suitable as a primary DNS change monitor.
HetrixTools is a solid mid-tier infrastructure monitoring platform. Its DNS monitoring checks A, AAAA, MX, and TXT records from multiple locations and alerts on changes. It's a good middle ground between basic uptime tools and enterprise DNS platforms.
Pros: covers the most important record types, reasonable pricing, good alert options including email and Slack, checks from multiple geographic locations so you catch propagation issues.
Cons: the interface is dense and requires some familiarity with infrastructure monitoring concepts. NS record monitoring requires a higher tier. Not focused exclusively on DNS — it's a general infrastructure tool that includes DNS monitoring.
Best for: developers who already need server monitoring and want DNS change alerts as part of the same platform. Good value if you're monitoring both servers and DNS.
Pingdom is a mature website performance and uptime monitoring platform. It's excellent at what it's designed for — page speed, uptime, and transaction monitoring. However, it doesn't include DNS record change monitoring. Its "DNS check" is a response-time measurement, not a record-change detector.
Pros: best-in-class for performance monitoring; global check locations; detailed root cause analysis; integrates with most alerting platforms.
Cons: DNS record change monitoring is simply not part of the product. If your MX record changes, Pingdom won't alert you. You'd need a separate tool for DNS change monitoring.
Best for: teams focused on website performance and uptime who need a complementary DNS change monitoring tool alongside Pingdom.
DNSWatch is a purpose-built DNS change monitor designed for indie developers and small teams. It monitors all record types (A, AAAA, MX, TXT, CNAME, NS) and sends email alerts the moment anything changes — including what the record changed from and to, and a timestamp. Setup is just adding a domain, no DNS migration required.
Pros: lowest price point for full-record-type coverage; change history shows exactly what changed; simple focused interface with no infrastructure overhead; companion free DNS checker tool for ad-hoc lookups.
Cons: still in early access — no Slack/webhook integration yet; up to 10 domains in the initial offering; newer service without years of track record.
Best for: indie developers and small teams that want dedicated DNS change monitoring at a low price, without committing to a full infrastructure monitoring platform.
If you need comprehensive uptime + performance monitoring and want to add DNS as one signal: HetrixTools gives the best DNS coverage within a general monitoring platform at a reasonable price.
If DNS monitoring is your primary need and you have a handful of domains to watch: DNSWatch at $9/month is the lowest-friction option focused specifically on this problem.
If you're on a tight budget and mainly need HTTP uptime: UptimeRobot free tier covers the basics, but add a separate DNS change monitor alongside it — UptimeRobot won't catch MX or TXT record changes.
If you're running enterprise DNS infrastructure on DNS Made Easy: their built-in monitoring is the most integrated option and the additional cost is worth it at that scale.
If you need Pingdom for performance: you'll want a second tool for DNS change monitoring since Pingdom doesn't cover it.
Monitor all your DNS records and get alerted the instant anything changes. $9/month for up to 10 domains — early access pricing locked in for founding customers.
Join the DNSWatch waitlist → Free DNS record checker