DNS Check allows you to troubleshoot DNS issues by verifying that your DNS servers return the correct responses to DNS queries.
For example, if you have multiple DNS servers and suspect that there are replication issues, you could:
- Create a new DNS record group.
- Import your zone file(s).
- Test the imported records on each DNS server.
If there are replication errors, the above test exposes which records are impacted on which name servers.
You can also identify and troubleshoot intermittent DNS issues by viewing a DNS record's history and looking for patterns.
DNS Record History
To view the history for a DNS record, click its drop-down menu, then the History button. That loads a report showing the history of state changes (e.g., transitioning between passing and failing states) for that DNS record. Here's an example report for a DNS record that started in a passing state on November 10, then began failing on December 26 due to unexpected IP addresses being returned.
The failure entry shows both the expected IP address (1.2.3.4) and the IPs returned by the nameserver (104.18.26.120 and 104.18.27.120).
DNS Record History Retention
DNS Check accounts retain 7 to 365 days of DNS record history, depending on account type:
| Plan | History Retention |
|---|---|
| Basic | 7 days |
| Professional | 90 days |
| Enterprise | 365 days |
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