- Short answer
- A DNS reset on a Shopify-managed domain deletes every record but the A, AAAA and CNAME record, each pointed back to Shopify; subdomain CNAMEs go too.
- Subdomains
- To keep them, skip the full reset: delete records by hand or reset A, AAAA and CNAME one by one
- Single-record reset
- Actions > Reset on that record; for the A record, which you can't remove, it restores the Shopify default
- Undo
- None of the Help Center pages we read on October 15, 2026 describes one
What does a full DNS reset delete and keep?
A Shopify-managed domain's DNS settings page edits six record types: A, CNAME, MX, TXT, AAAA and SRV. A full reset keeps three.
Resetting your settings deletes all your records except the A record, the AAAA record, and CNAME record, which are reset to point to Shopify.
That allows no other exceptions, so every MX, TXT and SRV record is deleted, and the page's caution adds subdomain CNAME records to the list.
Should you reset one record or all DNS settings?
- Reconnects a parked domain
- Keeps only Shopify's A, AAAA and CNAME
- Deletes subdomain CNAMEs
- Restores the A record's Shopify default
- Actions > Reset on one record
- Only A, AAAA and CNAME
To keep subdomains, the DNS settings page says to delete records manually; the parking page, for reconnecting a parked domain, says to reset A, AAAA and CNAME individually. Either way, skip the full reset.
What to save before you click Reset DNS settings
Shopify doesn't host email, so a mailbox provider other than Zoho Mail or Google Workspace needs custom records you add: Shopify says "typically MX records, TXT records, and CNAME records".
Email forwarding's SPF record is a TXT record, so it goes too.
- Settings
- Domains
- Your domain
- DNS settings
- Manage
- Advanced settings
- Reset DNS settings
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