A records not consistent
Authoritative servers agree, but not all other servers do.
- This is normal for A records. They can be geo- or round-robin load-balanced.
- Some servers may have cached older records. Wait for their TTLs to expire.
DNS server
TTL
Time To Live
The amount of time a DNS record is cached for.
Records returned by these servers
The official source of information for this domain,
managed by the owner of udel.edu .
managed by the owner of udel.edu .
adns1.nnn.upenn.edu
128.91.2.53
The official source of information for this domain,
managed by the owner of udel.edu .
managed by the owner of udel.edu .
adns2.nnn.upenn.edu
128.91.254.53
The official source of information for this domain,
managed by the owner of udel.edu .
managed by the owner of udel.edu .
adns3.nnn.upenn.edu
128.91.251.53
The official source of information for this domain,
managed by the owner of udel.edu .
managed by the owner of udel.edu .
dns1.udel.edu
128.175.13.16
The official source of information for this domain,
managed by the owner of udel.edu .
managed by the owner of udel.edu .
dns2.udel.edu
128.175.13.17
South Africa
105.243.201.206
Brazil
144.22.131.193
United States of America
150.136.61.69
Russia
158.160.70.119
Australia
170.64.132.24
India
49.143.252.50
Netherlands
82.97.246.78
Ukraine
91.196.179.69
94.140.14.14
185.228.168.168
2606:4700:4700::1001
8.8.8.8
NextDNS
45.90.28.66
OpenDns
208.67.220.220
2620:fe::9
Canada
176.125.239.234
No A records found