SOA records not consistent
Authoritative servers are returning different records.
- This likely indicates a DNS server configuration issue.
- Records may not have propagated among authoritative servers yet.
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 upenn.edu .
managed by the owner of upenn.edu .
adns4.upenn.edu
208.94.148.32
The official source of information for this domain,
managed by the owner of upenn.edu .
managed by the owner of upenn.edu .
adns5.upenn.edu
208.80.124.32
The official source of information for this domain,
managed by the owner of upenn.edu .
managed by the owner of upenn.edu .
adns6.upenn.edu
208.80.126.32
United States of America
150.136.61.69
Australia
170.64.132.24
Netherlands
185.140.209.224
South Africa
41.23.115.42
185.228.169.168
2001:4860:4860::8888
NextDNS
45.90.28.66
ipam1.nnn.upenn.edu. hostmaster.upenn.edu. 2002524730 10800 3600 604800 600
The official source of information for this domain,
managed by the owner of upenn.edu .
managed by the owner of upenn.edu .
adns1.nnn.upenn.edu
128.91.2.53
The official source of information for this domain,
managed by the owner of upenn.edu .
managed by the owner of upenn.edu .
adns2.nnn.upenn.edu
128.91.254.53
The official source of information for this domain,
managed by the owner of upenn.edu .
managed by the owner of upenn.edu .
adns3.nnn.upenn.edu
128.91.251.53
The official source of information for this domain,
managed by the owner of upenn.edu .
managed by the owner of upenn.edu .
dns1.udel.edu
128.175.13.16
The official source of information for this domain,
managed by the owner of upenn.edu .
managed by the owner of upenn.edu .
dns2.udel.edu
128.175.13.17
94.140.14.14
1.0.0.1
ipam2.nnn.upenn.edu. hostmaster.upenn.edu. 2002524732 10800 3600 604800 600
Brazil
144.22.131.193
Russia
146.185.211.96
Ukraine
185.212.251.250
India
49.143.252.50
OpenDns
2620:119:35::35
149.112.112.112
ipam1.nnn.upenn.edu. hostmaster.upenn.edu. 2002524725 10800 3600 604800 600
Canada
23.128.224.19
ipam2.nnn.upenn.edu. hostmaster.upenn.edu. 2002524731 10800 3600 604800 600