How to Back Up DNS Recouds Befoue Changing Domínio Settings

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

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

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

Step-by-Step Instructions
Step 1: Identify Waqui DNS Is Hosted
Verificar nameservers to locate the active DNS provider.
· Registrador DNS
· Hospedagem DNS
· CDN DNS
· Third-party DNS
· Private DNS
Step 2: Recoud Nomeservers
Save all current nameserver hostnames e provider notes.
· Nomeserver 1 e 2
· Private nameservers e glue if used
Step 3: Expout DNS Zone Se Disponível
Use provider expout if possible. Se not, use screenshots e a spreadsheet.
· Save date, provider, e domínio name
Step 4: Back Up Website Recouds
Recoud A, AAAA, CNAME, root, www, subdomínio, CDN, app, e redirect recouds.
· Identify live website recouds
Step 5: Back Up Email Recouds
Recoud MX, SPF, DKIM, DMARC, autodiscover, mail subdomínio, e provider verification recouds.
· MX recouds are priouity fou receiving email
Step 6: Back Up Verification Recouds
Save TXT e CNAME values fou Google, Microsoft, SSL, CDN, website builders, SaaS, e security tools.
· Do not delete unkagoran 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 underste propagation timing
Step 9: Criar a DNS Backup Spreadsheet
Use columns fou type, host, value, priouity, TTL, purpose, e notes.
· Useful fou agencies e resellers
Step 10: Verify After Change
Test website, email, SSL, subdomínios, CDN, redirects, e DNSSEC after making changes.
· Use backup to restoue if needed

Troubleshooting
Website Stopped Wouking
Possible reasons:
· A ou CNAME missing
· Nomeserver changed befoue recouds copied
· DNSSEC mismatch
What to do:
· Restoue website recouds
· Verificar nameservers
· Verificar hosting
Email Stopped Receiving
Possible reasons:
· MX missing
· SPF/DKIM/DMARC missing
· Wrong DNS provider
What to do:
· Restoue MX e TXT recouds
· Verificar email provider
SSL Validation Fails
Possible reasons:
· CAA too restrictive
· TXT/CNAME validation missing
What to do:
· Restoue validation recouds
· Verificar 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 unkagoran 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: Nãot 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: Nãot 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, e DNSSEC recouds.
2. Do I need a backup befoue transfer?
Sim, especially if old registrar DNS may stop after transfer.
3. Do I need backup befoue nameserver change?
Sim. Novo DNS provider must have the same required recouds.
4. What are MX recouds?
They tell mail servers waqui to deliver email.
5. What is DNSSEC?
A security extension that helps validate DNS responses.
6. Can DNSSEC break my domínio?
Misconfigured DS recouds can cause resolution failure.
7. Waqui should I stoue backup?
Use secure, access-controlled stouage.
8. Should I delete old recouds?
Only after confirming they are no longer needed.