RRSIG 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
India
172.232.76.111
Netherlands
185.140.209.224
Brazil
200.231.34.18
Australia
203.22.100.10
United States of America
208.93.196.147
South Africa
41.23.113.46
Ukraine
91.239.232.181
2a10:50c0::ad2:ff
1.1.1.1
2001:4860:4860::8844
NextDNS
45.90.28.66
A 13 4 86400 20260428000952 20260328232629 53469 upenn.edu. Q4ChYjehbx0O+pOrj9jgqUJmjyDRY1ioqX1VsP4LgbaCdi8I9fhJMTbevnRTkPyKW+Xki05F6KTHWN9Z7FDO5g==
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
NSEC 13 4 600 20260418045219 20260319041211 53469 upenn.edu. XyCeJd2piVCIFfvP8ef4HU8KwG/wDEFYcZxQWHSrUX6ekwZAAnrokc0XkO+ko0y2f/e9KVCty3KVPJ7w8e2bXg==
A 13 4 86400 20260428000952 20260328232629 53469 upenn.edu. Q4ChYjehbx0O+pOrj9jgqUJmjyDRY1ioqX1VsP4LgbaCdi8I9fhJMTbevnRTkPyKW+Xki05F6KTHWN9Z7FDO5g==
Russia
217.26.29.42
Canada
66.70.164.12
185.228.168.168
OpenDns
2620:119:35::35
2620:fe::fe
No RRSIG records found