myaddr.tools is an ultra-minimal dynamic DNS service. Users can claim a subdomain name in seconds without creating an account; the system returns a secret key, and whoever holds that key can control the name. It offers several equivalent suffixes: your-name.myaddr.tools, your-name.myaddr.dev, your-name.myaddr.io, and their subdomains, making it suitable for binding a dynamic public IP address to a stable domain name.
Its core feature is the HTTP Update API. The /update endpoint is designed to be flexible: GET, POST, and PUT can all be used for update requests, and parameters can be placed in the URL query, a form, or a JSON body. Users can update IPv4/IPv6 records using key and ip; ip=self automatically uses the source IP of the request, while ipv4.myaddr.tools or ipv6.myaddr.tools can be used to force a specific protocol family. It also supports the ACME dns-01 challenge, allowing TXT records to be created for TLS certificate issuance by CAs such as Let's Encrypt, with automatic deletion after a few minutes. IP records can be deleted with a DELETE request.
The page does not disclose any paid plans, and it explicitly states that there are no ads and no tracking. Note that IPv4 and IPv6 addresses must be updated at least once every 90 days to remain active; if a name receives no updates for 120 days, its registration will be deleted and released. If the secret key is lost, access to the name is lost as well, as there is no account system or recovery process.
The strengths are its extremely low barrier to entry, privacy-friendly design, simple API, and ACME support, making it very practical for self-hosted services. Its suffixes are included in the Public Suffix List, and myaddr.dev is also on the HSTS preload list, showing basic alignment with the modern web ecosystem. The downside is that the feature set is intentionally restrained: there is no apparent dashboard, SDK, rate-limit documentation, SLA, audit trail, team collaboration, commercial support, or self-hosting guidance, so enterprise use cases should be evaluated carefully.
It is well suited to home broadband, personal servers, temporary test environments, IoT, or lightweight self-hosted services. If you need more complex DNS management, permission controls, or integration with the domestic Chinese cloud ecosystem, alternatives include Cloudflare DNS API, Duck DNS, No-IP, or Alibaba Cloud/Tencent Cloud DNS APIs. The source text does not provide information about access from mainland China, payment methods, or availability, so actual connectivity should be verified through local network testing.
β This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on myaddr.io official site.
myaddr.io is an Unknown Dev Tools provider. TG4G tracks its product information, an overall rating of 7.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach myaddr.io directly.