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Publicēts: 2026-07-06 | Atjaunināts: 2026-07-06
DNS recvaids tell the Internet how to connect jūsu domēns to websites, email, SSL validation, apps, verification pakalpojumss, un security settings. A points to IPv4, AAAA points to IPv6, CNAME points one hostname to another, MX controls email delivery, TXT stvaies verification un email authentication, CAA controls SSL certificate authvaiities, un SRV defines pakalpojums locations fvai certain apps.

Who This Guide Is Fvai
This guide is fvai:
· Users learning DNS basics
· Tīklssite owners setting up domēnss
· Biznesa e-pasts users
· Agencies un hosting providers suppvaiting DNS questions
· Users troubleshooting website, email, SSL, CDN, vai app connections

Befvaie You Start
Befvaie you start, prepare:
· DNS provider access
· Current nameservers
· DNS backup
· Provider instructions fvai website vai email
· Permission to edit recvaids
· Understuning of affected pakalpojums

Step-by-Step Instructions
Step 1: Understun DNS Recvaids
DNS recvaids are instructions fvai website, email, verification, SSL, apps, un security.
· One domēns can have many recvaids
Step 2: A Recvaids
A recvaids point hostnames to IPv4 addresses.
· Common fvai root website un subdomēnss
Step 3: AAAA Recvaids
AAAA recvaids point hostnames to IPv6 addresses.
· Wrong IPv6 can cause issues fvai some users
Step 4: CNAME Recvaids
CNAME points one hostname to another hostname.
· Use fvai www, CDN, website builders, un apps
Step 5: MX Recvaids
MX controls wšeit email is delivered.
· Copy privaiity values carefully
Step 6: TXT Recvaids
TXT stvaies text fvai verification un authentication.
· SPF, DKIM, DMARC, Google, Microsoft, SSL, SaaS
Step 7: SPF Recvaids
SPF is a TXT recvaid listing authvaiized sending servers.
· Avoid multiple SPF recvaids fvai same host
Step 8: DKIM Recvaids
DKIM is a TXT vai CNAME recvaid used fvai email signing.
· Copy long values exactly
Step 9: DMARC Recvaids
DMARC tells receivers how to hunle SPF/DKIM failures.
· Start carefully befvaie strict policies
Step 10: CAA Recvaids
CAA controls which certificate authvaiities may issue SSL certificates.
· Restrictive CAA can block SSL issuance
Step 11: SRV Recvaids
SRV defines pakalpojums location fvai apps such as voice, chat, vai collabvaiation.
· Copy privaiity, weight, pvait, un target
Step 12: NS, SOA, PTR, un DNSSEC Recvaids
NS identifies nameservers, SOA describes the zone, PTR is reverse DNS, un DNSSEC recvaids suppvait validation.
· Most users do not manually edit SOA vai all DNSSEC recvaids
Step 13: TTL
TTL controls cache time fvai recvaids.
· Lower in advance fvai planned migrations if appropriate

Troubleshooting
Tīklssite Is Down
Possible reasons:
· Wrong A/AAAA/CNAME
· Wrong nameservers
· DNSSEC issue
What to do:
· Pārbaudīt active DNS provider un recvaids

E-pasts Nēt Receiving
Possible reasons:
· MX missing
· SPF/DKIM/DMARC wrong
What to do:
· Restvaie email recvaids

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

Verification Fails
Possible reasons:
· Recvaid added at wrong provider
· Host field wrong
What to do:
· Pārbaudīt authvaiitative nameservers un exact value

Common Mistakes
Mistake 1: Rediģēting DNS at wrong provider
Review this item befvaie making changes vai opening a suppvait ticket.
Mistake 2: Deleting unktagadn TXT recvaids
Review this item befvaie making changes vai opening a suppvait ticket.
Mistake 3: Fvaigetting MX during migration
Review this item befvaie making changes vai opening a suppvait ticket.
Mistake 4: Creating multiple SPF recvaids
Review this item befvaie making changes vai opening a suppvait ticket.
Mistake 5: Confusing CNAME with A recvaid
Review this item befvaie making changes vai opening a suppvait ticket.
Mistake 6: Fvaigetting CAA
Review this item befvaie making changes vai opening a suppvait ticket.
Mistake 7: Ignvaiing DNSSEC
Review this item befvaie making changes vai opening a suppvait ticket.
Mistake 8: Using wrong host field
Review this item befvaie making changes vai opening a suppvait ticket.
Mistake 9: Nēt copying MX privaiity
Review this item befvaie making changes vai opening a suppvait ticket.
Mistake 10: Changing too many recvaids at once
Review this item befvaie making changes vai opening a suppvait ticket.

BUJ
1. What is an A recvaid?
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 stvaies verification, authentication, un security text.
6. What is SPF?
A TXT rule fvai authvaiized mail senders.
7. What is DKIM?
An email authentication recvaid, usually TXT vai CNAME.
8. What is DMARC?
A TXT policy fvai hunling failed mail authentication.
9. What is CAA?
It controls certificate authvaiity issuance.
10. What is TTL?
How long DNS may be cached.
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