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
Australia
123.100.147.201
United States of America
162.243.12.37
India
172.232.76.111
Canada
172.99.156.65
Brazil
200.231.34.18
Netherlands
37.17.213.60
South Africa
41.23.234.245
Ukraine
45.140.123.250
Russia
46.138.240.213
94.140.15.15
2606:4700:4700::1001
2001:4860:4860::8888
NextDNS
2a07:a8c0::53:54e9
A 13 4 86400 20260402193947 20260303192842 53469 upenn.edu. AuFXWa9CJfTKO9b+kDy3nV2uCDVvbt+oGNVeFru53/7wAKS3KseJEUw+P1okObcFAWdu5V8h/fHzfKaelrl8lg==
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 20260417140035 20260318133616 53469 upenn.edu. Uzs9eCOfVflT1RZ5Ks7aJZPLWHETxK6ftc4PEgoprZINZ6Qp/zGnSL2TogjuNt9bt1wPsMzlIqpmWyWjvnU7jw==
A 13 4 86400 20260402193947 20260303192842 53469 upenn.edu. AuFXWa9CJfTKO9b+kDy3nV2uCDVvbt+oGNVeFru53/7wAKS3KseJEUw+P1okObcFAWdu5V8h/fHzfKaelrl8lg==
No RRSIG records found