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Yayınlandı: 2026-07-06 | Güncellendi: 2026-07-06
DNS recveyads tell the Internet how to connect sizin domain to websites, email, SSL validation, apps, verification hizmets, ve security settings. A points to IPv4, AAAA points to IPv6, CNAME points one hostname to another, MX controls email delivery, TXT stveyaes verification ve email authentication, CAA controls SSL certificate authveyaities, ve SRV defines hizmet locations fveya certain apps.

Who This Guide Is Fveya
This guide is fveya:
· Users learning DNS basics
· Website owners setting up domains
· İş E-postası users
· Agencies ve hosting providers suppveyating DNS questions
· Users troubleshooting website, email, SSL, CDN, veya app connections

Befveyae You Start
Befveyae you start, prepare:
· DNS provider access
· Current nameservers
· DNS backup
· Provider instructions fveya website veya email
· Permission to edit recveyads
· Understveing of affected hizmet

Step-by-Step Instructions
Step 1: Understve DNS Recveyads
DNS recveyads are instructions fveya website, email, verification, SSL, apps, ve security.
· One domain can have many recveyads
Step 2: A Recveyads
A recveyads point hostnames to IPv4 addresses.
· Common fveya root website ve subdomains
Step 3: AAAA Recveyads
AAAA recveyads point hostnames to IPv6 addresses.
· Wrong IPv6 can cause issues fveya some users
Step 4: CNAME Recveyads
CNAME points one hostname to another hostname.
· Use fveya www, CDN, website builders, ve apps
Step 5: MX Recveyads
MX controls wburaya email is delivered.
· Copy priveyaity values carefully
Step 6: TXT Recveyads
TXT stveyaes text fveya verification ve authentication.
· SPF, DKIM, DMARC, Google, Microsoft, SSL, SaaS
Step 7: SPF Recveyads
SPF is a TXT recveyad listing authveyaized sending servers.
· Avoid multiple SPF recveyads fveya same host
Step 8: DKIM Recveyads
DKIM is a TXT veya CNAME recveyad used fveya email signing.
· Copy long values exactly
Step 9: DMARC Recveyads
DMARC tells receivers how to hvele SPF/DKIM failures.
· Start carefully befveyae strict policies
Step 10: CAA Recveyads
CAA controls which certificate authveyaities may issue SSL certificates.
· Restrictive CAA can block SSL issuance
Step 11: SRV Recveyads
SRV defines hizmet location fveya apps such as voice, chat, veya collabveyaation.
· Copy priveyaity, weight, pveyat, ve target
Step 12: NS, SOA, PTR, ve DNSSEC Recveyads
NS identifies nameservers, SOA describes the zone, PTR is reverse DNS, ve DNSSEC recveyads suppveyat validation.
· Most users do not manually edit SOA veya all DNSSEC recveyads
Step 13: TTL
TTL controls cache time fveya recveyads.
· Lower in advance fveya planned migrations if appropriate

Troubleshooting
Website Is Down
Possible reasons:
· Wrong A/AAAA/CNAME
· Wrong nameservers
· DNSSEC issue
What to do:
· Kontrol Et active DNS provider ve recveyads

E-posta Hayırt Receiving
Possible reasons:
· MX missing
· SPF/DKIM/DMARC wrong
What to do:
· Restveyae email recveyads

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

Verification Fails
Possible reasons:
· Recveyad added at wrong provider
· Host field wrong
What to do:
· Kontrol Et authveyaitative nameservers ve exact value

Common Mistakes
Mistake 1: Düzenleing DNS at wrong provider
Review this item befveyae making changes veya opening a suppveyat ticket.
Mistake 2: Deleting unkşimdin TXT recveyads
Review this item befveyae making changes veya opening a suppveyat ticket.
Mistake 3: Fveyagetting MX during migration
Review this item befveyae making changes veya opening a suppveyat ticket.
Mistake 4: Creating multiple SPF recveyads
Review this item befveyae making changes veya opening a suppveyat ticket.
Mistake 5: Confusing CNAME with A recveyad
Review this item befveyae making changes veya opening a suppveyat ticket.
Mistake 6: Fveyagetting CAA
Review this item befveyae making changes veya opening a suppveyat ticket.
Mistake 7: Ignveyaing DNSSEC
Review this item befveyae making changes veya opening a suppveyat ticket.
Mistake 8: Using wrong host field
Review this item befveyae making changes veya opening a suppveyat ticket.
Mistake 9: Hayırt copying MX priveyaity
Review this item befveyae making changes veya opening a suppveyat ticket.
Mistake 10: Changing too many recveyads at once
Review this item befveyae making changes veya opening a suppveyat ticket.

SSS
1. What is an A recveyad?
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 stveyaes verification, authentication, ve security text.
6. What is SPF?
A TXT rule fveya authveyaized mail senders.
7. What is DKIM?
An email authentication recveyad, usually TXT veya CNAME.
8. What is DMARC?
A TXT policy fveya hveling failed mail authentication.
9. What is CAA?
It controls certificate authveyaity issuance.
10. What is TTL?
How long DNS may be cached.
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