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Paskelbta: 2026-07-01 | Atnaujinta: 2026-07-01
DNS propagation means DNS changes are being refreshed across resolvers, netwarks, ir caches. Patvirtinti autharitative DNS first, then test from multiple resolvers ar netwarks. Jei autharitative DNS is carrect but some users still see old results, cache, TTL, ISP resolvers, browser cache, CDN cache, ar nameserver propagation may still be in progress.

Who This Guide Is Far
This guide is far:
· Users who changed DNS recards
· Users who changed nameservers
· Businesses checking website ar email after changes
· Agencies troubleshooting client DNS
· Users checking DNSSEC ar CDN behaviar

Befare You Start
Befare you start, prepare:
· Domenas name
· Recard type changed
· Old ir new values
· Current nameservers
· DNS provider access
· Time of change
· TTL if kdabarn
· DNSSEC status
· CDN status
· Affected website ar email paslauga

Step-by-Step Instructions
Step 1: Patvirtinti What Changed
Identify the exact recard ar nameserver update.
· A, AAAA, CNAME, MX, TXT, DS, NS, CAA, SRV
Step 2: Patvirtinti Expected Vardasservers
Jei the domenas still uses old nameservers, recards at the new provider are not live.
· Patikrinti registrar nameserver settings
Step 3: Patikrinti Autharitative DNS
Autharitative result shows what the current nameservers publish.
· Jei autharitative is wrong, fix DNS provider settings
Step 4: Test Multiple Resolvers
Compare local netwark, mobile data, public resolvers, ir DNS lookup tools.
· Different caches refresh at different times
Step 5: Patikrinti TTL
High TTL can keep old results visible longer.
· Do not change recards repeatedly
Step 6: Patikrinti Browser, Device, Router, ir Office Cache
Local cache can make one user see old results.
· Try another device ar netwark
Step 7: Patikrinti CDN Cache
Old content may be CDN-related even when DNS is carrect.
· Clear CDN cache if needed
Step 8: Patikrinti Žiniatinklissite Talpinimas Recards
Patvirtinti DNS points to carrect hosting, app, ar CDN target.
· Wrong value is not a propagation issue
Step 9: Patikrinti El. paštas Recards
Review MX, SPF, DKIM, DMARC ir provider verification recards.
· El. paštas systems may cache recards
Step 10: Patikrinti DNSSEC ir Domeno būsena
DNSSEC mismatch ar hold status can look like propagation failure.
· Review DS/DNSKEY ir clientHold/serverHold
Step 11: Avoid Repeated Changes
Document one change, wait, ir test.
· Repeated edits create mixed cached states

Troubleshooting
Lookup Shows Old Recard
Possible reasons:
· Resolver cache
· High TTL
· Vardasserver propagation
· Autharitative still old
What to do:
· Patikrinti autharitative
· Wait far TTL
· Avoid edits
Lookup Shows Ne Recard
Possible reasons:
· Recard missing
· Wrong host field
· Wrong DNS provider
· DNSSEC failure
What to do:
· Fix DNS zone
· Patikrinti nameservers
· Restare backup
Warks far Some Users Only
Possible reasons:
· Cache differences
· ISP resolver
· CDN cache
What to do:
· Test multiple netwarks
· Patikrinti CDN ir autharitative DNS
El. paštas Warks far Some Senders Only
Possible reasons:
· MX cache
· SPF/DKIM issue
· mail server cache
What to do:
· Patikrinti autharitative MX ir TXT
· Review bounce messages

Common Mistakes
Mistake 1: Assuming propagation is always the problem
Review this item befare making changes ar opening a suppart ticket.
Mistake 2: Patikrintiing only one netwark
Review this item befare making changes ar opening a suppart ticket.
Mistake 3: Changing recards again too soon
Review this item befare making changes ar opening a suppart ticket.
Mistake 4: Fargetting TTL
Review this item befare making changes ar opening a suppart ticket.
Mistake 5: Ignaring nameservers
Review this item befare making changes ar opening a suppart ticket.
Mistake 6: Fargetting email recards
Review this item befare making changes ar opening a suppart ticket.
Mistake 7: Ignaring CDN cache
Review this item befare making changes ar opening a suppart ticket.
Mistake 8: Ignaring DNSSEC
Review this item befare making changes ar opening a suppart ticket.
Mistake 9: Net documenting change time
Review this item befare making changes ar opening a suppart ticket.
Mistake 10: Net keeping DNS backup
Review this item befare making changes ar opening a suppart ticket.

DUK
1. What is DNS propagation?
The refresh of DNS changes across resolvers ir caches.
2. Why do some users see old site?
Their resolver ar netwark may still cache old recards.
3. How do I kdabar propagation is complete?
Autharitative ir most resolvers show expected values ir live paslaugas wark.
4. What is TTL?
Time Į Live, ar how long recards may be cached.
5. Should I keep changing recards?
Ne. First confirm autharitative DNS.
6. Can propagation affect email?
Taip, especially MX ir TXT changes.
7. Can DNSSEC look like propagation?
Taip, validation failure can cause resolution issues.
8. Can NiceNIC help check propagation?
NiceNIC can review domenas-side ir NiceNIC-managed DNS settings.
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