I changed the DNS servers for a given domain and still days after that change gTLD continue replying a set of NS records that include the old NS entries.
dig @g.gtld-servers.net. example.com ns
return six records, four are the new records and correct NS records for example.com and two are the oldest and staled NS records for that domain.
The registrar is DNC Holdings, Inc. and when I query its WHOIS service with:
whois example.com -h whois.directnic.com
the NS listed are correct, but if I run:
whois example.com
the first part of the reply show 6 NS records, including the two old NS records but in the last part of the reply (that one I suppose is returned by the whois.directnic.com server) just the 4 and correct NS records.
The effect of this situations is that when I add a record to the new NSs and to the old NSs and execute a query again publics DNS like 8.8.8.8, the returned value is the value I set on the old NSs.
How can I solve this problem? Exist a way to ask gTLD domains to purge its cache?
EDIT
Both, old and new NS set respond with the correct four records to the query like dig @NameServerOldOrNew example.com
dig @g.gtld-servers.net. MYDOMAON.COM ns
does.The result I got with the web you point me is the same,six NS records. 3. Is the only thing that remain, but is not simple cos domain was registered by another company than the company I'm supporting,even this last company "own" the domain 4. I will message you privately with the name.