dynv6
dynv6.com/Free dynamic subdomaindomains-dns/dynv6JSONcomparereport an errorprovider JSON
- Free allowance
- A free hostname for dynamic IPv4 and IPv6 addresses, or delegation of the user's own domain to dynv6, free for everyone; no zone or hostname count is published
- Verdict
- caveatusable, with a named limit or an unprobed read path
- Cost
- free tier
- Identity
- emailno card, no phone
- Binding limit
- noneno named constraint binds
- Evidence
- documented7 sources; a first-party page was read and the sentence quoted
- Freshness
- stale on 2026-12-05checked 2026-11-04 (live); stale on 2026-12-05
| Free tier | a free hostname for dynamic IPv4 and IPv6 addresses, or delegation of the user's own domain to dynv6, free for everyone; no zone or hostname count is published unit objects; metered on none |
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| Price | none stated |
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| Binding | none no count, expiry or review is published, so no limit binds on the pages read; the stated exposure is that the service has no enterprise DDoS protection and no SLA |
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| Identity | email the sign-up form has an email, a password of at least 8 characters and a password confirmation; no phone and no card field |
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| Egress | no query cap published |
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| Per-object cap | unverified: no hostname, zone or record count is published on the pages read |
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| Retention | unverified: no expiry, inactivity or confirmation rule is stated on the pages read |
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| Interface | rest five ways to update a zone: a REST API, an update API, a DynDNS-compatible API, SSH with public key authentication, and DNS updates signed with TSIG keys; the DynDNS-style API updates the IPv4 address only; webhooks fire when the address changes |
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| Tooling | curl, nsupdate or any software that speaks RFC 2136 with a TSIG key, a router's DynDNS client, or lego for certificate challenges |
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| Composes with | a free name with a full update API; a zone under the vendor's suffix is not the registrant's, and the user's own domain can instead be delegated to dynv6 |
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| Reliability | the vendor says it offers no enterprise-grade DDoS protection and no SLA and asks that it not be used for critical services; the suffix is on the Public Suffix List, so the TLS limit counts per name |
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| Notes | Nothing published binds: no count, expiry or review. The unknowns are the withdrawal rule and the count, and the vendor disclaims an SLA. The zone is the vendor's; delegating the user's own domain is the other offer. The TLS limit does not bind, because dynv6.net is listed. |
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| Evidence note | documented the home page, the API page and the sign-up form were read and quoted; no count, expiry or suffix list was read; the TLS statement is an inference from the Let's Encrypt registered-domain rule and the Public Suffix List entry |
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| Parsed numbers | |
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Evidence 7
| date | source | what it proved |
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| 2026-11-03 | dynv6.com/ | a free hostname, or delegation of the user's own domain, is free for everyone |
| 2026-11-03 | dynv6.com/ | no enterprise DDoS protection or SLA, and not for critical services |
| 2026-11-03 | dynv6.com/ | several update interfaces exist (REST, update API, DynDNS, SSH, TSIG DNS updates) |
| 2026-11-03 | dynv6.com/users/sign_up | the sign-up form asks for an email, a password and its confirmation |
| 2026-11-03 | publicsuffix.org/list/public_suffix_list.dat | dynv6.net is an entry of the private section of the Public Suffix List |
| 2026-11-03 | letsencrypt.org/docs/rate-limits/ | Let's Encrypt finds the registered domain with the Public Suffix List |
| 2026-11-04 | dynv6.com/ | a free hostname or delegation is offered; the page states no count or quota, so 'unlimited' is not stated |