No-IP
- Free allowance
- 1 hostname on a No-IP shared domain, no credit card; the hostname must be confirmed every 30 days or it is deleted
- Verdict
- caveatusable, with a named limit or an unprobed read path
- Cost
- free tier
- Identity
- emailno card, no phone
- Binding limit
- retention-clampedconfirm every 30 days: active 23 days, 7-day confirmation window, 14-day redemption, then deletion
- Evidence
- documented26 sources; a first-party page was read and the sentence quoted
- Freshness
- stale on 2026-12-04checked 2026-11-03 (live); stale on 2026-12-04
| Free tier | 1 hostname on a No-IP shared domain, no credit card; the hostname must be confirmed every 30 days or it is deleted unit objects; metered on object-count |
|---|---|
| Price | none stated |
| Limits | |
| Binding | retention-clamped the 30-day manual confirmation is what decides; an update client keeps the address current but does not renew the hostname |
| Identity | email the sign-up form asks for an e-mail address and a password and a terms checkbox that states one free account; the free page says no credit card is required (https://www.noip.com/sign-up, https://www.noip.com/free); no phone field in the captured form text |
| Egress | no DNS query cap published on the pages read |
| Per-object cap | 1 hostname on the free plan, on one of 30+ No-IP shared domains; the zone belongs to No-IP, so the user holds no record count of its own; hostnames may be type A, AAAA or Port 80 Redirect |
| Retention | a free hostname is active for 23 days, may be confirmed in the next 7 days, stops resolving when it expires, sits 14 more days in redemption and is then deleted and open to anyone; an update from a client does not confirm it (30 days) |
| Interface | rest a dyndns2-style HTTP update request, GET https://dynupdate.no-ip.com/nic/update?hostname=HOST&myip=IP with HTTP Basic auth (the account e-mail address and password), on port 443 over HTTPS or on ports 80 and 8245 over HTTP; the response is a text code such as good, nochg or badauth; the pages read list a RESTful API only under the contact-sales Branded Remote Access plan |
| Tooling | the free No-IP Dynamic Update Client for Windows, macOS and Linux, any dyndns2-compatible client or router, and curl from cron; confirmation itself is a web or e-mail action with no documented API |
| Composes with | a name for a changing address and nothing else on the free plan; the domains are No-IP's, so the name cannot be a zone of its own, and the 30-day confirmation has to be done by hand |
| Reliability | a free hostname silently stops resolving if the 30-day confirmation is missed; the update endpoint answers HTTP 401 with the body badauth for a request without credentials; a client without an approved User-Agent can be rate-limited or blocked, and the badagent and abuse codes tell a client to stop updating |
| Notes | Free confirmation interval: 30 days (23 active, 7 to confirm, then 14 in redemption). The paid Enhanced plan, USD 2.50 a month billed annually for 5 hostnames, lists hostnames that never expire. |
| Evidence note | documented the free-plan page, the confirmation knowledge-base page, the FAQ, the sign-up page and the update protocol pages were read and quoted; the unauthenticated update endpoint was probed once and answered 401 badauth |
| Parsed numbers |
|
Evidence 26
| date | source | what it proved |
|---|---|---|
| 2026-11-03 | www.noip.com/free | the free plan lists 1 hostname |
| 2026-11-03 | www.noip.com/free | no credit card is required for the free plan |
| 2026-11-03 | www.noip.com/support/knowledgebase/confirm-my-hostname-free- | a free hostname must be confirmed every 30 days |
| 2026-11-03 | www.noip.com/support/knowledgebase/confirm-my-hostname-free- | the confirmation window opens after 23 days and lasts 7 days |
| 2026-11-03 | www.noip.com/support/knowledgebase/confirm-my-hostname-free- | after the 14-day redemption the hostname is deleted and anyone can claim it |
| 2026-11-03 | www.noip.com/support/knowledgebase/i-installed-your-update-c | an IP update does not confirm a free hostname |
| 2026-11-03 | www.noip.com/faqs | free hostnames are created on 30+ shared domains |
| 2026-11-03 | www.noip.com/faqs | free plans offer limited hostname and domain options |
| 2026-11-03 | www.noip.com/integrate/request | the update is an HTTP request to dynupdate.no-ip.com/nic/update |
| 2026-11-03 | www.noip.com/integrate/request | the hostnames updated may be A, AAAA or Port 80 Redirect |
| 2026-11-03 | www.noip.com/integrate/request | the update credential is the account e-mail address and password |
| 2026-11-03 | www.noip.com/integrate/request | a client without an approved User-Agent risks being rate-limited or blocked |
| 2026-11-03 | www.noip.com/integrate/response | badauth is the response code for a bad username and password |
| 2026-11-03 | www.noip.com/sign-up | the sign-up form carries a terms checkbox stating one free account |
| 2026-11-03 | probe: https://dynupdate.no-ip.com/nic/update | the update endpoint is live and answers HTTP 401 without credentials |
| 2026-11-03 | probe: body-noip | the body of that unauthenticated answer is the text code badauth |
| 2026-11-03 | www.noip.com/pricing | the paid Enhanced Dynamic DNS plan with 5 hostnames is USD 2.50 a month billed annually |
| 2026-11-03 | www.noip.com/pricing | the paid Enhanced plan lists hostnames that never expire |
| 2026-11-03 | www.noip.com/remote-access | a RESTful API is listed under the contact-sales Branded Remote Access plan |
| 2026-11-03 | www.noip.com/free | free dynamic DNS is the entry level service on names such as yourname.no-ip.info |
| 2026-11-03 | www.noip.com/free | no card is required for the free plan |
| 2026-11-03 | www.noip.com/support/knowledgebase/how-many-hostnames-can-i- | a free account has 1 hostname |
| 2026-11-03 | www.noip.com/support/knowledgebase/confirm-my-hostname-free- | free hostnames need confirmation every 30 days |
| 2026-11-03 | www.noip.com/support/knowledgebase/confirm-my-hostname-free- | an unconfirmed hostname is deleted after the Redemption period and anyone can claim it |
| 2026-11-03 | publicsuffix.org/list/public_suffix_list.dat | No-IP.com's suffixes (no-ip.info, no-ip.org and others) are entries 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 |