Head-to-head · Secondary DNS Services
ClouDNS vs SecondDNS
ClouDNS leads on 1 check, SecondDNS on 0, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreClouDNS · 9.4/10
- Free planonly ClouDNS
- Free trialonly SecondDNS
ClouDNS scores higher on our rubric for secondary dns services: 9.4 against 8.6 out of 10; our editors rank them #1 and #7.
ClouDNS offers free plan; SecondDNS doesn't.
ClouDNS is the better fit for broad secondary DNS with automation. SecondDNS is the better fit for managed synchronization and monitoring.
- ClouDNS fits best
Broad secondary DNS with automation
- SecondDNS fits best
Managed synchronization and monitoring
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Side by side
| Feature | ClouDNS 9.4/10 Visit ↗ | SecondDNS 8.6/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 8.6 |
| Ranking | #1 in Secondary DNS Services | #7 in Secondary DNS Services |
| Best for | Broad secondary DNS with automation | Managed synchronization and monitoring |
| Pricing model | Free plan + paid | Paid |
| Starting price | $2.95/mo | €3/mo |
| Free plan | ✓ (best) | — |
| Free trial | — | 90 days |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Integrations | 4 integrations | 6 integrations |
| Features ClouDNS 2/4 · SecondDNS 2/4 | ||
| Health checks | ✓ | ✓ |
| DNSSEC support | Not checked yet | Not checked yet |
| API access | ✓ | ✓ |
| IPv6 support | Not checked yet | Not checked yet |
| Specs | ||
| Transfer protocols | Not checked yet | Axfr_and_ixfr |
| Zone limit | Not checked yet | 20 zones |
| Secondary nameservers | Not checked yet | Not checked yet |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | ClouDNS is a managed DNS platform for businesses and organizations that host and route domain traffic. It combines web-based DNS zone and record management with Anycast DNS, GeoDNS, DNS failover checks, DNSSEC, secondary DNS, monitoring,… Read the review → |
SecondDNS is a hosted secondary DNS service for developers, small businesses, agencies, hosting providers, and infrastructure teams. It keeps read-only copies of DNS zones synchronized from a primary server through AXFR, with IXFR… Read the review → |
Strengths and trade-offs
ClouDNS — where it wins
- Secondary DNS with Anycast, DNSSEC, monitoring, and backups
- GeoDNS, failover checks, and advanced traffic routing
- API access with WHMCS, Terraform, OctoDNS, and SAML SSO
Where it doesn't
- The Free DNS plan supports only 1 DNS zone and 50 DNS records
- Paid plans begin at Premium S, with 5 DNS zones and 1 failover check
- Plan capacity jumps from 400 zones on Premium L to unlimited on Enterprise
SecondDNS — where it wins
- AXFR and IXFR synchronization across paid tiers
- REST API, dashboard, health checks, and alerts
- Integrations for cPanel, Plesk, and monitoring tools
Where it doesn't
- No ongoing free plan after the three-month trial
- IXFR starts only on Pro and higher plans
- Premium support and custom SLA require the top tier
- ClouDNS9.4/10 · Free plan
A broad secondary DNS service with automation, routing, monitoring, and API access.
Visit ClouDNSFull verdict → - SecondDNS8.6/10 · 90-day trial
A focused secondary DNS service with monitoring, automation, and hosting-panel integrations.
Visit SecondDNSFull verdict →
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All secondary DNS services comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update






