What is a DNS checker?

A DNS checker queries the Domain Name System for every record type of a domain — the addresses it points to (A, AAAA), its mail servers (MX), name servers (NS), verification strings (TXT) and security policies (CAA) — and reports exactly what is published.

Why can't I see a CNAME record for my domain's root?

DNS does not allow a CNAME on the zone apex (example.com itself) — the root must use A/AAAA records. CNAME records only appear on subdomains like www.example.com.

How long do DNS changes take to show up?

Each record carries a TTL (time to live) that tells resolvers how long to cache it — from seconds to days. After editing a record, public resolvers keep serving the old answer until its TTL expires, so propagation can take as long as the previous TTL.

Hubiyaha DNS - Raadinta DNS bilaashka ah (A, AAAA, MX, TXT, NS Records)

Diyaarinta hubinta…

Waa maxay nooc kasta oo diiwaanka DNS ka dhigan tahay

Nidaamka Magaca Domainku wuxuu kaydiyaa wax ka badan cinwaanka domainka. Hubiyahani waxa uu si toos ah u waydiinayaa DNS-ka sir ah ee DNS-over-HTTPS wuxuuna ka warbixiyaa nooc kasta oo rikoodh ah oo boggu daabaco:

A / AAAA - IPv4 / IPv6 waxay wax ka qabataa dhibcaha domain-ka. La'aanteed ugu yaraan mid ka mid ah kuwan, domain ma martigelin karo degel.
CNAME - magac ku tilmaamay magac kale. Lama ogola aagga ugu sarreeya, sidaas darteed example.com sida caadiga ah midna ma muujin doono.
MX - server-yada boostada ee hela iimaylka domainka, mid kastaa wuxuu leeyahay mudnaanta. Maya MX badanaa macnaheedu waa iimayl ma jiro.
NS - Adeegayaasha magaca awoodda leh ee ka jawaabaya aagga.
TXT Qoraal-qaab bilaash ah: SPF siyaasadaha ka-hortagga xasadka, saxeexa DKIM (ku saabsan subdomains), calaamadaha xaqiijinta lahaanshaha.
CAA - kuwaas oo maamulka shahaadada loo ogol yahay inay bixiyaan shahaadooyinka TLS ee domainka.
SOA - xogta badan ee maamulka ee aagga: server-ka aasaasiga ah, xidhiidhka iyo saacadaha kaydinta.

Waa maxay sababta loo hubiyo diiwaanada DNS?

Kadib guuritaanka ama wax ka beddelka DNS - Xaqiiji in diiwaannada cusubi ay ku nool yihiin xal-u-helayaasha dadweynaha, ma aha oo keliya kaydka kombiyuutarkaaga.
gaarsiinta iimaylka - Xaqiiji in gelitaanka SPF/MX ay sax yihiin ka hor inta aysan farriimaha billaabin.
Dib u eegista amniga - Baro isbeddellada TXT/NS ee lama filaanka ah, oo hubi in CAA ay liis garayso kaliya CA-yada aad isticmaasho.

Talo: Tafatirka DNS isla markiiba kama soo muuqdo meel kasta - diiwaan kasta oo TTL ah ayaa u sheega xaliyayaasha ilaa inta ay kaydinayaan jawaabtii hore. Hoos u dhig TTL ka hor isbeddel la qorsheeyay, ka dibna kor u qaad mar kale ka dib.

Helay cinwaanada? Eeg Domain ilaa IP si aad u hesho astaanta guud ee martigelinta cinwaanka, ku orod a jeeg liiska madow dusheeda, ama ku akhri DNS roga.

FAQ

Su'aalaha hubinta DNS

Waa maxay DNS checker?

Hubiyaha DNS wuxuu weydiiyaa Nidaamka Magaca Domain ee nooc kasta oo rikoor ah oo domain ah - cinwaannada ay tilmaamayaan (A, AAAA), adeegayaasha boostada (MX), server-yada magaca (NS), xargaha xaqiijinta (TXT) iyo siyaasadaha amniga (CAA) - oo waxay soo sheegaan waxa la daabacay.

Waa maxay sababta aanan u arki karin diiwaanka CNAME ee xididkayga domain?

DNS ma ogola CNAME aagga ugu sarreeya (example.com lafteeda) - xididku waa inuu isticmaalo diiwaannada A/AAAA. Diiwaanada CNAME waxay ka muuqdaan kaliya subdomains sida www.tusaale.com.

Intee in le'eg ayay isbeddellada DNS qaadanayaan si ay u muuqdaan?

Rikoor kastaa waxa uu wataa TTL (waqtiga la noolaan karo) kaas oo u sheegaya xaliyayaasha inta ay le'egtahay in la kaydiyo - min ilbiriqsi ilaa maalmo. Ka dib tafatirka diiwaanka, xaliyasha dadwaynuhu waxay sii wadaan u adeegaya jawaabtii hore ilaa TTL ka dhacayo, markaa faafintu waxay qaadan kartaa ilaa iyo inta TTL hore.