You can post and subscribe to the following groups to get updates on Google Public DNS, and to discuss the design and implementation of Google Public DNS and DNS infrastructure in general:
This is a forum for presenting and discussing new ideas, products, and initiatives that improve DNS infrastructure across the Internet. You can also use it to provide feedback on Google Public DNS features. This forum is moderated; your message only appears after it is approved. Do not use this to report security-related issues; report them on the Issue Tracker as noted below.
This is a read-only list where you can get information on new versions, releases, and features of Google Public DNS, as well as current status of the service.
If you encounter a problem with Google Public DNS, first please run the diagnostic tests. If the issue is that a specific domain cannot be resolved by Google Public DNS, check it with intoDNS and DNSViz for name server or DNSSEC problems. These cause most reported issues, and you can often solve them yourself.
If you are unable to resolve the problem, and would like to report an issue, you have two options:
Post to public-dns-discuss. This shares your report publicly, and allows you to get feedback from other Google Public DNS users. If your report is security-related, do not post it here; please use the Issue Tracker as noted below.
Open an issue in the Issue Tracker. Please use this option to report any security-related issues, such as Google Public DNS returning results that should fail DNSSEC validation. See the details section below.
In either case, please include the following information in your report:
- The date and time you encountered the problem
- Your location
- The platform on which you are noticing the problem (e.g. Mac, Windows, router, etc.)
- The hostname(s) for which you are having a problem
- Whether the problem is continuous or intermittent
- The links to the tools' name server diagnosis report page
- The output of the commands you ran in the diagnostic tests
Details on Issue Tracker
There are two components for Public DNS in the Issue Tracker. They have templates for common problems to help you provide the right information for us to investigate.
Public Trackers > Public DNS For issues with no confidential information. Available templates:
Public Trackers > Public DNS > Restricted For issues that may have confidential information related to an operator or domain. Also report security vulnerabilities here. This keeps your report private to yourself and Google Public DNS engineers. Available templates:
- Domain Problems: Problems with a domain that are specific to Google Public DNS.
- Rate Limit Request: Requests to increase rate limits for ISPs and network operators.
- Recursive Denial of Service: Authoritative nameservers receiving high-volume of DNS queries from Google Public DNS.
- Reflection Denial of Service: Receving large volume of DNS responses from Google Public DNS (220.127.116.11).
- Vulnerability Report
Filing an issue in either of the two components gives the issue a tracking number and a Google Public DNS engineer will be assigned to handle it. You can view the issue's history and status as it is updated. For more help with the Issue Tracker itself please see its documentation.