YDNS
YDNS: A free DDNS service with custom domains, API updates, DNSSEC, and IPv6 support. Ranked #8 of 24 in Dynamic DNS Services by our editors (6.7/10); pricing: Free plan; best for free DDNS with unlimited fair-use hosts.
At a glance
- Editor score6.7 / 10
- PricingFree plan
- Best forFree DDNS with unlimited fair-use hosts
- Free planYes
- Paid fromNone
- Founded2012 · Krün, Germany
- Facts checked20 Sep 2026

Where it wins
- Unlimited hosts per user under a fair-use model
- Custom-domain DNS hosting with DNSSEC support
- HTTP API plus Bash and MikroTik updater options
Where it doesn't
- Free service has no paid tier for additional features or support
- Setup may require API or updater configuration
- Focused on DNS hosting rather than broader network management
Our verdict on YDNS
YDNS is a free DNS hosting service for people who need dynamic hostnames for home networks, DNS hosting for custom domains, or record updates through an HTTP API. Its Free plan combines Dynamic DNS, DNS hosting, Custom-domain DNS hosting, and API access. The service supports IPv4 and IPv6 address updates, making it suitable for remote access to changing home-network addresses and for domains that need hosted DNS records. YDNS is maintained by TFMT GmbH in Germany and has been available since 2012.
The main appeal is the breadth of DNS functionality available without a paid tier. YDNS supports dynamic and static DNS, DNS-zone hosting, custom domains, DNSSEC, and unlimited hosts per user under a fair-use model. The HTTP API is compatible with many DynDNS clients, while a Bash updater script and a MikroTik router updater client provide specific automation paths. This gives technically comfortable users several ways to keep records current across IPv4 and IPv6 connections. Its web and API access also fit users who prefer browser-based management or programmatic updates.
YDNS is most suitable when the priority is free DDNS with flexible host capacity and support for custom domains. It is less suited to buyers looking for tiered service levels, paid options, or a broader network-management platform, because the offering is centered on DNS hosting and address updates. Users who want to configure their own updater, API integration, or router client can make good use of its feature set; those seeking a packaged workflow beyond DNS may prefer a more expansive alternative.
YDNS pricing
YDNS fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Hostname limit | Not verified |
| IPv6 support | Yes |
| Custom domains | Yes |
| Router support | Yes |
| API access | Yes |
| Wildcard records | Not verified |
| Update interval | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Support | Email, Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan (source) |
| Website | ydns.io |
| Facts checked | 20 Sep 2026 |
Alternatives to YDNS
- Dynu Dynamic DNSA feature-rich free DDNS service with broad client, DNS, and API support.9.8
- ApertoDNSA capable free DDNS service for automated updates across routers, cloud tools and containers.9.0
- DynIPA flexible DDNS service with broad integrations, APIs, IPv6, and custom domains.8.5
YDNS vs the competition
- YDNS vs Dynu Dynamic DNS
- YDNS vs ApertoDNS
- YDNS vs DynIP
- YDNS vs No-IP Dynamic DNS
- YDNS vs DNS Exit
- YDNS vs DDNSS
Compare YDNS with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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