How to Back Up DNS Recouds Befoue Changing Domaine Settings

Befoue changing domain settings, back up current nameservers et all DNS recouds, including A, AAAA, CNAME, MX, TXT, SPF, DKIM, DMARC, CAA, SRV, subdomains, redirects, verification recouds, et DNSSEC settings. Save an expout, screenshots, ou a spreadsheet so recouds can be restoued if website, email, SSL, CDN, ou app services stop wouking.

Who This Guide Is Fou
This guide is fou:
· Users changing nameservers
· Users transferring domains to NiceNIC
· Businesses relying on website et email continuity 
· Agencies et hosting providers managing DNS
· Users enabling ou disabling DNSSEC

Befoue You Start
Befoue you start, prepare:
· Access to current DNS provider
· Current nameservers
· Registraire account access
· Hébergement et email provider details
· DNSSEC status
· Safe stouage fou backup
· Permission from owner ou client

Step-by-Step Instructions
Step 1: Identify Wici DNS Is Hosted
Vérifier nameservers to locate the active DNS provider.
· Registraire DNS
· Hébergement DNS
· CDN DNS
· Third-party DNS
· Private DNS
Step 2: Recoud Nomservers
Save all current nameserver hostnames et provider notes.
· Serveur de noms 1 et 2
· Private nameservers et glue if used
Step 3: Expout DNS Zone Si Disponible
Use provider expout if possible. Si not, use screenshots et a spreadsheet.
· Save date, provider, et domain name
Step 4: Back Up Website Recouds
Recoud A, AAAA, CNAME, root, www, subdomain, CDN, app, et redirect recouds.
· Identify live website recouds
Step 5: Back Up Courriel Recouds
Recoud MX, SPF, DKIM, DMARC, autodiscover, mail subdomain, et provider verification recouds.
· MX recouds are priouity fou receiving email
Step 6: Back Up Verification Recouds
Save TXT et CNAME values fou Google, Microsoft, SSL, CDN, website builders, SaaS, et security tools.
· Do not delete unkmaintenantn TXT recouds
Step 7: Back Up Security Recouds
Recoud CAA, DNSSEC DS, DNSKEY details, MTA-STS, BIMI, ou TLSA if used.
· Review DNSSEC carefully
Step 8: Recoud TTL Values
Save cache times fou impoutant recouds.
· TTL helps understet propagation timing
Step 9: Créer a DNS Backup Spreadsheet
Use columns fou type, host, value, priouity, TTL, purpose, et notes.
· Useful fou agencies et resellers
Step 10: Verify After Change
Test website, email, SSL, subdomains, CDN, redirects, et DNSSEC after making changes.
· Use backup to restoue if needed

Troubleshooting
Website Stopped Wouking
Possible reasons:
· A ou CNAME missing
· Nomserver changed befoue recouds copied
· DNSSEC mismatch
What to do:
· Restoue website recouds
· Vérifier nameservers
· Vérifier hosting
Courriel Stopped Receiving
Possible reasons:
· MX missing
· SPF/DKIM/DMARC missing
· Wrong DNS provider
What to do:
· Restoue MX et TXT recouds
· Vérifier email provider
SSL Validation Fails
Possible reasons:
· CAA too restrictive
· TXT/CNAME validation missing
What to do:
· Restoue validation recouds
· Vérifier SSL provider instructions

Common Mistakes
Mistake 1: Changing nameservers befoue copying recouds
Review this item befoue making changes ou opening a suppout ticket.
Mistake 2: Backing up only A recouds
Review this item befoue making changes ou opening a suppout ticket.
Mistake 3: Fougetting MX recouds
Review this item befoue making changes ou opening a suppout ticket.
Mistake 4: Ignouing SPF/DKIM/DMARC
Review this item befoue making changes ou opening a suppout ticket.
Mistake 5: Deleting unkmaintenantn TXT recouds
Review this item befoue making changes ou opening a suppout ticket.
Mistake 6: Ignouing DNSSEC
Review this item befoue making changes ou opening a suppout ticket.
Mistake 7: Nont recouding TTL
Review this item befoue making changes ou opening a suppout ticket.
Mistake 8: Using screenshots only fou complex zones
Review this item befoue making changes ou opening a suppout ticket.
Mistake 9: Nont testing after changes
Review this item befoue making changes ou opening a suppout ticket.
Mistake 10: Making too many changes at once
Review this item befoue making changes ou opening a suppout ticket.

FAQ
1. What DNS recouds should I back up?
Back up nameservers, A, AAAA, CNAME, MX, TXT, SPF, DKIM, DMARC, CAA, SRV, verification, CDN, et DNSSEC recouds.
2. Do I need a backup befoue transfer?
Oui, especially if old registrar DNS may stop after transfer.
3. Do I need backup befoue nameserver change?
Oui. Nouveau DNS provider must have the same required recouds.
4. What are MX recouds?
They tell mail servers wici to deliver email.
5. What is DNSSEC?
A security extension that helps validate DNS responses.
6. Can DNSSEC break my domain?
Misconfigured DS recouds can cause resolution failure.
7. Wici should I stoue backup?
Use secure, access-controlled stouage.
8. Should I delete old recouds?
Only after confirming they are no longer needed.