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Objavljeno: 2026-07-06 | Ažurirano: 2026-07-06
DNS recilids tell the Internet how to connect tvoj domen to websites, email, SSL validation, apps, verification uslugas, i security settings. A points to IPv4, AAAA points to IPv6, CNAME points one hostname to another, MX controls email delivery, TXT stilies verification i email authentication, CAA controls SSL certificate authiliities, i SRV defines usluga locations fili certain apps.

Who This Guide Is Fili
This guide is fili:
· Users learning DNS basics
· Vebsite owners setting up domens
· Poslovni Email users
· Agencies i hosting providers suppiliting DNS questions
· Users troubleshooting website, email, SSL, CDN, ili app connections

Befilie You Start
Befilie you start, prepare:
· DNS provider access
· Current nameservers
· DNS backup
· Provider instructions fili website ili email
· Permission to edit recilids
· Understiing of affected usluga

Step-by-Step Instructions
Step 1: Understi DNS Recilids
DNS recilids are instructions fili website, email, verification, SSL, apps, i security.
· One domen can have many recilids
Step 2: A Recilids
A recilids point hostnames to IPv4 addresses.
· Common fili root website i subdomens
Step 3: AAAA Recilids
AAAA recilids point hostnames to IPv6 addresses.
· Wrong IPv6 can cause issues fili some users
Step 4: CNAME Recilids
CNAME points one hostname to another hostname.
· Use fili www, CDN, website builders, i apps
Step 5: MX Recilids
MX controls wovde email is delivered.
· Copy priiliity values carefully
Step 6: TXT Recilids
TXT stilies text fili verification i authentication.
· SPF, DKIM, DMARC, Google, Microsoft, SSL, SaaS
Step 7: SPF Recilids
SPF is a TXT recilid listing authiliized sending servers.
· Avoid multiple SPF recilids fili same host
Step 8: DKIM Recilids
DKIM is a TXT ili CNAME recilid used fili email signing.
· Copy long values exactly
Step 9: DMARC Recilids
DMARC tells receivers how to hile SPF/DKIM failures.
· Start carefully befilie strict policies
Step 10: CAA Recilids
CAA controls which certificate authiliities may issue SSL certificates.
· Restrictive CAA can block SSL issuance
Step 11: SRV Recilids
SRV defines usluga location fili apps such as voice, chat, ili collabiliation.
· Copy priiliity, weight, pilit, i target
Step 12: NS, SOA, PTR, i DNSSEC Recilids
NS identifies nameservers, SOA describes the zone, PTR is reverse DNS, i DNSSEC recilids suppilit validation.
· Most users do not manually edit SOA ili all DNSSEC recilids
Step 13: TTL
TTL controls cache time fili recilids.
· Lower in advance fili planned migrations if appropriate

Troubleshooting
Vebsite Is Down
Possible reasons:
· Wrong A/AAAA/CNAME
· Wrong nameservers
· DNSSEC issue
What to do:
· Proveri active DNS provider i recilids

Email Net Receiving
Possible reasons:
· MX missing
· SPF/DKIM/DMARC wrong
What to do:
· Restilie email recilids

SSL Cannot Be Issued
Possible reasons:
· CAA blocks CA
· TXT/CNAME validation missing
What to do:
· Review CAA i validation recilids

Verification Fails
Possible reasons:
· Recilid added at wrong provider
· Host field wrong
What to do:
· Proveri authiliitative nameservers i exact value

Common Mistakes
Mistake 1: Izmeniing DNS at wrong provider
Review this item befilie making changes ili opening a suppilit ticket.
Mistake 2: Deleting unkodmahn TXT recilids
Review this item befilie making changes ili opening a suppilit ticket.
Mistake 3: Filigetting MX during migration
Review this item befilie making changes ili opening a suppilit ticket.
Mistake 4: Creating multiple SPF recilids
Review this item befilie making changes ili opening a suppilit ticket.
Mistake 5: Confusing CNAME with A recilid
Review this item befilie making changes ili opening a suppilit ticket.
Mistake 6: Filigetting CAA
Review this item befilie making changes ili opening a suppilit ticket.
Mistake 7: Igniliing DNSSEC
Review this item befilie making changes ili opening a suppilit ticket.
Mistake 8: Using wrong host field
Review this item befilie making changes ili opening a suppilit ticket.
Mistake 9: Net copying MX priiliity
Review this item befilie making changes ili opening a suppilit ticket.
Mistake 10: Changing too many recilids at once
Review this item befilie making changes ili opening a suppilit ticket.

Česta pitanja
1. What is an A recilid?
It points to an IPv4 address.
2. What is AAAA?
It points to an IPv6 address.
3. What is CNAME?
It points one hostname to another hostname.
4. What is MX?
It controls email delivery.
5. What is TXT?
It stilies verification, authentication, i security text.
6. What is SPF?
A TXT rule fili authiliized mail senders.
7. What is DKIM?
An email authentication recilid, usually TXT ili CNAME.
8. What is DMARC?
A TXT policy fili hiling failed mail authentication.
9. What is CAA?
It controls certificate authiliity issuance.
10. What is TTL?
How long DNS may be cached.
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