IANA TLD Checker
- This tool checks if a domain name has been registered with a particular top-level domain (tld) extension. All tld extensions from the Internet Assigned Numbers Authority (IANA, 2015) are supported.
- To use the tool, enter a domain or subdomain name, select a tld group from the selection menu, and submit form.
- For instance, to retrieve domain names registered as "gobierno.tld" where tld belongs to a country from Central or South America enter [gobierno] and select the [LACNIC] option.
- You may choose tlds across generics, countries, regions, or from those available through Google (2015) and CentralNic (2015).
- You can also choose tlds alphabetically. This set of options retrieves tlds from IANA's site on a daily basis, allowing you to identify the most recent tlds which might not be accessible through the other options. At the time of writing, a total of 1,167 tlds can be retrieved.
- You may want to run one web browser instance of the tool at a time per machine IP, to avoid unexpected results.
- As retrieval time is slaved to the response time of remote hosts, you may want to do other tasks while the tool is working, particularly if submitting a large number of URLs.
- You may stop retrieval at any time by clicking twice the tool reset button and waiting a few seconds for the current process to be completed.
- Bogus Responses Some reachable sites are set to send bogus status response or no response at all while redirecting. This is done for different reasons, among others to deceive crawlers, for security reasons, or for other specific purposes. If you believe that a particular record is bogus, you may want to run its domain name through our MUST tool. This tool can help you to elucidate these cases. For instance, a search for seo.com with MUST shows that seo.com undergoes a 301 redirection while sending no final status code.
- For each registered domain name, the tool returns the corresponding status response code, IP, and reverse IP.
- Unless unreachable at query time, registered domains should return valid status codes and IPs.
- Although not necessarily, unreachable domain names might be unregistered. So this tool can help users to identify domain names available for registration across all IANA's tlds.
- The tool can be used to quickly check for possible branded domains or if someone is infringing on your intellectual property by registering domains using your brand names or derivatives of these.
The tool can also be used to discover IPs not intended for public view by submitting queries of the form
- (intranet, admin, cpanel, password, account, data,...).keyword
- (user, gmail, mail, email, mxrecord, mx, proxy,...).keyword
- (test, server, root, path, error, client, ad, adserver...).keyword
- For instance, try with intranet.yahoo, mx.yahoo, or mxrecord.yahoo
- A Word on CNAME Configurations
Querying a domain name by starting it with www. can direct to nowhere if in the DNS the www alias does not point via the CNAME resource record to the canonical URL. This can also occurs if the www. is required, but omitted in the query. Ideally, users should expect configurations to be set such that a domain name query can be mapped to the intended canonical URL regardless of if they yes-www or no-www, we believe. Don't you think so?
- Webmasters, developers, and programmers.
- All the data generated by Minerazzi is provided for information purposes only. By using this site, you agree to use our data only for lawful purposes. Unless stated otherwise, the compilation, repackaging, and for/non-for profit dissemination or other use of our data is expressly prohibited without our prior written consent. We reserve the right to modify these terms at any time. By using this site, you agree to abide by these terms.
- IANA (2015). The Internet Assigned Numbers Authority (IANA).
- Google Blog (2015). Expanding the Internet domain space.
- CentralNic (2015). New gTLD, ccTLD + SLD Registry Back-end, Marketing, Distribution & Financing | CentralNic.
Contact us for any suggestion or question regarding this tool.