DNS change dry-run
A small change in the DNS panel can stop email or the website. This tool reads your plan line by line, fetches the live records for the names involved and works out the state after the change. You see problems such as a CNAME clashing with other records, a second SPF record or an MX deleted entirely before you touch anything.
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How to use it
- Enter the domain and your plan with one change per line (e.g. + @ TXT "v=spf1 …").
- Press the run button. Results are listed separately as definite problems, possible issues, unverifiable and passed; each finding shows what was found, what it means, the fix and the limits of the check.
- Apply the suggested fix and run the tool again to confirm. Use “Copy result” to add the report to a support ticket.
Example
If you try to add a new SPF record next to the existing one at the apex, the tool reports that two SPF records would exist as a definite problem. The “Example” button in the form fills in a scenario like this and shows the result immediately.
Scope and limits
Nothing is changed; the current state is read from public resolvers and compared with your plan. Records only present under other names (DKIM, subdomains) are not considered unless they are part of the plan.
Your inputs are not added to the address bar or passed to analytics, and result pages are not indexed by search engines.
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