cloudns.net

What is ClouDNS?

ClouDNS is a DNS hosting provider: it runs the name servers that answer queries for your domain, rather than selling you the domain itself. Its model is a free tier plus paid upgrades, with the paid tiers adding Anycast name servers, higher query limits and features such as DNSSEC and DNS failover.

What it actually does

• Free DNS hosting — four unicast name servers, one DNS zone, 50 records, 500K queries per month, one mail forward and one dynamic DNS hostname.
• Premium DNS — starts from $2.95/month, adding four Anycast servers, more zones and records, and query allowances up to 500M per month.
• DDoS Protected DNS — starts from $5.95/month, with protected Anycast servers and a higher query ceiling.
• GeoDNS — starts from $9.95/month, for answering queries differently depending on the visitor's location.
• Related services — dynamic DNS, secondary DNS, reverse DNS, DNSSEC, failover, backups, monitoring, email forwarding, SSL certificates and domain registration.

Who it suits

Trade-offs to weigh

The free tier is genuinely usable but narrow: one zone, 50 records and 500K queries per month will not carry a busy site or a portfolio of domains. Paid plans are subscription-based, so costs recur. The feature list is broad, which is convenient if you want DNS, monitoring and email forwarding from one account, but it also means more to configure than a minimal DNS host. Anycast and uptime guarantees appear only from the paid tiers upward.

Next step

Decide first whether you need one zone or many, and whether you need failover, DNSSEC or geo-routing. If the answer is "one zone, no extras", start on the free tier and watch the query counter; if you need any of those features, compare the Premium, DDoS Protected and GeoDNS tiers directly against your expected query volume. If you have not yet registered the domain, note that ClouDNS sells domain names too, but you can equally point a domain registered at Cloudflare or another registrar at ClouDNS name servers.

How does ClouDNS's free DNS hosting compare to its premium plans?

ClouDNS's free tier is a genuinely usable DNS host for a single small project; the premium tiers are about scale, resilience and geographic reach. The free plan covers one DNS zone with 50 records, four unicast nameservers, up to 500,000 queries per month, one mail forward and one dynamic DNS hostname, plus 24/7 live chat support. Premium adds Anycast nameservers, far larger zone/record/query allowances, DNS failover, DNSSEC, free zone migration and a free SSL certificate, with published uptime commitments that increase as you move up to DDoS-protected and GeoDNS tiers.

What actually changes

The practical difference is not "free vs paid features" so much as how much traffic and how many domains you can serve, and whether you get automatic failover when an origin goes down.

Who each fits

• Free: a personal domain, a side project, a lab or staging environment, or a small business site with modest traffic where a brief nameserver issue is tolerable. The single zone and 50-record cap is the real constraint — a domain with many subdomains, MX records and verification records can approach it.
• Premium: production sites, agencies managing client domains, or anyone needing failover between multiple origins. Anycast also matters if your users are spread across regions, since resolution is served from a nearby location.
• Higher tiers (DDoS-protected, GeoDNS): organisations that need attack absorption or want to return different answers by user location — for example routing European visitors to an EU endpoint.

How to decide

Count your zones and records first, then estimate monthly queries. If you are near or above one zone, 50 records or 500K queries, or if downtime during an origin failure is unacceptable, the paid tier is the sensible move rather than a luxury.

A useful next step: list every domain and subdomain you would host, add up the record count, and check your DNS query volume from your current provider's stats. That tells you whether free is sufficient or whether you need failover and Anycast. You can compare the published tiers at ClouDNS. If you are weighing alternatives, Cloudflare and Hurricane Electric are other well-known DNS hosts worth checking against the same criteria.

Can ClouDNS protect my website from DDoS attacks?

Yes, but only at the DNS layer. ClouDNS sells DDoS-protected DNS hosting, which keeps your domain resolving when someone floods your nameservers. It does not sit in front of your web server, so it will not absorb an attack aimed at your site's IP address.

What ClouDNS actually protects

• DNS infrastructure: Premium and DDoS Protected plans use Anycast networks, so query traffic is spread across multiple locations and scrubbed. This is the part ClouDNS explicitly markets as DDoS Protected DNS, listed separately from its free and Premium DNS tiers.
• Resolution during attacks: If an attacker targets your authoritative nameservers, visitors can still get your IP address. Without that, your site looks "down" even if the server is fine.
• Related resilience features: DNS Failover and DNSSEC appear in the paid tiers, which help with outages and spoofing rather than volumetric web attacks.

What it does not do

ClouDNS is not a CDN or reverse proxy. Traffic to yourdomain.com goes straight to your hosting provider, so a large flood against that IP will still hit your server and your host's network. For that layer you need a service that proxies HTTP traffic, such as Cloudflare or Fastly, or DDoS mitigation from your hosting provider.

A practical scenario

A small business runs its site on a VPS and its DNS at ClouDNS. An attacker sends a DNS amplification flood at the nameservers; ClouDNS's Anycast network absorbs it and the site stays reachable. The next week the same attacker hits the VPS IP directly with a traffic flood; ClouDNS has no role there, and the site goes down until the host filters it.

How to decide

Next step: check whether your hosting provider already includes DDoS protection for the web layer. If it does, ClouDNS's protected DNS plus your host's mitigation may be enough. If not, pair ClouDNS with a proxying CDN, and confirm which plan includes DNS Failover before you rely on it.

How does ClouDNS's GeoDNS feature improve website performance for global visitors?

GeoDNS improves global performance by answering each visitor's DNS lookup with an IP address chosen for their location, so users are sent to a nearby server instead of one on the other side of the world. That shortens the network path, which typically means faster page loads, fewer timeouts and more consistent speed for visitors outside your home region.

ClouDNS lists GeoDNS as a paid DNS service starting from $9.95/month, with 4 Anycast DNS servers. The free plan does not include GeoDNS: it offers 4 Unicast DNS servers, 1 DNS zone, 50 DNS records and 500K queries per month, so geo-routing is a step up in both price and capability.

What it does in practice

• Maps DNS answers to geographic regions, directing users to the closest or best-performing endpoint.
• Works with multiple server locations you already run, or with separate hosting providers per region.
• Pairs with the rest of ClouDNS's DNS toolkit — Anycast DNS, DNS Failover, DNSSEC and DDoS-protected DNS — so routing and resilience can be handled in the same place.
• Benefits from the broader Anycast network, which advertises the same address from multiple locations and lets the network itself route users to a nearby point of presence.

Who gets the most from it

Trade-offs to weigh

GeoDNS only helps if you actually have servers or endpoints in more than one region. Pointing every region at the same origin gains nothing. It also adds a layer to debug: a wrong region mapping can send users to a slower or unhealthy server, so keep health checks and failover configured. And because it is a premium feature, compare the monthly cost against the performance gain you expect — for a mostly local audience, that money may be better spent on caching or a CDN.

As a next step, list the regions where your visitors and servers actually are. If those lists overlap in at least two places, GeoDNS is worth testing; if not, start with the free plan and revisit later. For broader context on DNS and routing options, see ClouDNS.

What are the steps to set up dynamic DNS with ClouDNS?

ClouDNS treats Dynamic DNS as a core feature rather than an add-on. A free account includes one Dynamic DNS hostname, and paid plans raise that limit, so the practical setup is: create the hostname in the control panel, then point a client—router, server or updater script—at ClouDNS's update endpoint so the A or AAAA record follows your changing IP.

Typical setup steps

1. Create a free account at ClouDNS and sign in to the control panel.
2. Add or select a DNS zone you control. The free tier covers one zone, so use a domain you already own and set ClouDNS's nameservers at your registrar.
3. Create a Dynamic DNS hostname (for example home.example.com) and enable the dynamic option on that record.
4. Generate or note the update credentials the panel gives you for that hostname.
5. Configure your updater: many routers have a "custom DDNS" option where you paste the update URL; otherwise run a small scheduled script or a DDNS client on a always-on device.
6. Verify by checking the record resolves to your current public IP, then force an IP change (or wait for one) to confirm the update actually propagates.

Choosing how to update

Practical notes

• The update endpoint is HTTP-based, so anything that can make a scheduled web request can act as a client. Keep the update URL and credentials private—anyone with them can repoint your hostname.
• Set your updater to run at a sensible interval (every few minutes is usually enough) and to log failures, otherwise a silent error leaves you with a stale record.
• ClouDNS runs a global anycast network, so once the record updates, resolution should be quick across regions; propagation delay is rarely the bottleneck compared with how fast your client notices the new IP.
• If you later need failover, GeoDNS or DDoS-protected resolution, those sit on higher plans—check the plan comparison before committing, since Dynamic DNS limits scale with tier.

Next step: decide whether your router can send a custom update URL. If it can, you may be done in minutes; if not, plan for a small always-on device to run the updater.

How does ClouDNS ensure high uptime and reliability for DNS services?

ClouDNS addresses uptime through two main levers: a globally distributed Anycast network and tiered service-level guarantees that scale with the plan you buy.

Anycast network. ClouDNS runs its DNS across a global Anycast network, meaning the same DNS service is advertised from multiple locations at once. Queries are routed to a nearby (and typically healthy) node, so a single location's failure or congestion does not take the service down. This is the core architectural reason a DNS provider can stay reachable even when parts of the internet are having a bad day.

Tiered uptime SLAs. ClouDNS publishes different uptime commitments depending on the plan: the Free tier has no stated SLA, Premium DNS advertises a 1,000% Uptime SLA, and DDoS Protected DNS advertises a 10,000% Uptime SLA. The percentage is a service-credit multiplier, not a literal uptime figure — it defines how much compensation you receive if availability drops below the guaranteed threshold. Higher tiers therefore buy both more infrastructure (more Anycast servers, higher query limits) and stronger financial remedies.

DDoS protection. The DDoS Protected DNS tier adds Anycast Protected Servers specifically designed to absorb volumetric attacks. DNS is a common DDoS target, so this is a meaningful reliability feature rather than a marketing add-on.

Support and monitoring. ClouDNS offers 24/7 live chat across plans, and its service list includes DNS Failover, DNS backups, and a separate Monitoring product (HTTP, ping, TCP, SSL, keyword, and more). DNS Failover is the practical piece: it health-checks your origin and redirects traffic when it stops responding.

Practical takeaway. If you are running anything business-critical, the Free tier's 4 Unicast servers and 500K queries/month are fine for testing but not for production guarantees. The decision criterion is simple: choose Premium if you need a contractual SLA and more capacity, and DDoS Protected if your threat model includes volumetric attacks. For a concrete scenario — an e-commerce site with a single origin — enable DNS Failover to a backup host and pair it with a paid tier so you have both automatic failover and a credit-backed SLA.

Next step: check the plan comparison on ClouDNS and confirm which tier includes DNS Failover and DNSSEC, since those are the features that actually determine how gracefully you recover from an outage.