DNS Report: uni-due.de

Generated: 2026-08-09T10:12:27-05:00

75/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 IPv6 address(es) detected.
OKName server redundancy20/203 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
ERRORDNSSEC chain0/15Both DS and DNSKEY are required.
ERRORCAA policy0/5Certificate authority restriction.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/203 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
ERRORDKIM0/20No tested DKIM selector responded.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/5596 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers8/352 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: www.uni-essen-duisburg.de
WARNINGIPv4 diversity20/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
OKHTTP response40/40HTTP/1.1 200 OK
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
134.91.197.147
AAAA
CNAME
MX
10 mx-serv4.uni-due.de.
10 mx-serv5.uni-due.de.
10 mx-serv3.uni-due.de.
TXT
"apple-domain-verification=t3JfgbmXeFvCVwKO"
"v=spf1 ip4:132.252.0.0/16 ip4:134.91.0.0/16 ip4:193.30.112.1 ip6:2001:638:501::/48 include:_spf.tivian.com include:_spf.zimpel.de include:spf.server-he.de mx ~all"
"google-site-verification=ao6bsU-PynQ0nGziXEU2rkcGKh1_DBnALmHLmdZv6uo"
"MS=D42AE4BAA7D47D587275500686025E3907354F80"
NS
ns2.uni-duisburg-essen.de.
dns-2.dfn.de.
ns1.uni-duisburg-essen.de.
SOA
ns1.uni-duisburg-essen.de. netadm.uni-duisburg-essen.de. 2026080600 14400 3600 1209600 10800
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP