Head-to-head · Dynamic DNS Services
Dynu Dynamic DNS vs YDNS
Dynu Dynamic DNS leads on 1 check, YDNS on 0, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreDynu Dynamic DNS · 9.8/10
- Free planboth
- Most featuresDynu Dynamic DNS · 5 of 5
Dynu Dynamic DNS scores higher on our rubric for dynamic dns services: 9.8 against 6.7 out of 10; our editors rank them #1 and #8.
Dynu Dynamic DNS offers wildcard records; YDNS doesn't publish it.
Dynu Dynamic DNS is the better fit for free DDNS with many hosts and clients. YDNS is the better fit for free DDNS with unlimited fair-use hosts.
- Dynu Dynamic DNS fits best
Free DDNS with many hosts and clients
- YDNS fits best
Free DDNS with unlimited fair-use hosts
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Side by side
| Feature | Dynu Dynamic DNS 9.8/10 Visit ↗ | YDNS 6.7/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.8 | 6.7 |
| Ranking | #1 in Dynamic DNS Services | #8 in Dynamic DNS Services |
| Best for | Free DDNS with many hosts and clients | Free DDNS with unlimited fair-use hosts |
| Pricing model | Free plan + paid | Free |
| Starting price | Not published | Not published |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud, Desktop, Mobile, Browser extension | Cloud |
| Platforms | Web, Windows, macOS, Linux, iOS, Android, Chrome extension | Web |
| Support | Email, Phone, Tickets, Community, Docs | Email, Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business |
| Features Dynu Dynamic DNS 5/5 · YDNS 4/5 | ||
| IPv6 support | ✓ | ✓ |
| Custom domains | ✓ | ✓ |
| Router support | ✓ | ✓ |
| API access | ✓ | ✓ |
| Wildcard records | ✓ (best) | Not published |
| Specs | ||
| Hostname limit | 200 hostnames | Not published |
| Update interval | 2 minutes | Not published |
| Our review | ||
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| Cons |
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| Our verdict | Dynu Dynamic DNS maps hostnames to changing IPv4 or IPv6 addresses for home servers, remote access, webcams, game servers, and other internet-connected devices. It suits users who need free dynamic DNS with multiple hostnames,… Read the review → |
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,… Read the review → |
Strengths and trade-offs
Dynu Dynamic DNS — where it wins
- Free service with up to 200 hostnames and unlimited DNS queries
- Supports IPv4, IPv6, custom domains, wildcard records, and broad DNS types
- Clients and integrations cover desktop, mobile, browsers, routers, and firewalls
Where it doesn't
- DNSSEC, logging, backup, and restore require a paid membership
- Advanced API and sub-accounts are limited to the Corporate tier
- The free plan does not include priority or dedicated support
YDNS — 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
- Dynu Dynamic DNS9.8/10 · Free plan · paid from $9.99/yr
A feature-rich free DDNS service with broad client, DNS, and API support.
Visit DynuFull verdict → - YDNS6.7/10 · Free plan
A free DDNS service with custom domains, API updates, DNSSEC, and IPv6 support.
Visit YDNSFull verdict →
More comparisons
- Dynu Dynamic DNS vs ApertoDNS
- Dynu Dynamic DNS vs DynIP
- Dynu Dynamic DNS vs No-IP Dynamic DNS
- Dynu Dynamic DNS vs DNS Exit
- Dynu Dynamic DNS vs DDNSS
- Dynu Dynamic DNS vs DuckDNS
- ApertoDNS vs YDNS
- DynIP vs YDNS
All dynamic DNS services comparisons → · Full ranking →
Guides on dynamic DNS services
Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
Last updated · How we research and update






