paessler.com

Checked 22 October 2026, 10:11 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 0 failed 6 info

Registration

info

.com generic · InterNetX GmbH · expires 2027-09-09

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
InterNetX GmbH
Registered
10 September 1997
Last changed
10 September 2026
Expires
9 September 2027
Status
client transfer prohibited
Registry nameservers
eric.ns.cloudflare.com, uma.ns.cloudflare.com
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2027-09-09 #3
    The registration is valid until 2027-09-09 (321 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

eric.ns.cloudflare.com, uma.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
eric.ns.cloudflare.com, uma.ns.cloudflare.com
NS in the zone
eric.ns.cloudflare.com, uma.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
eric.ns.cloudflare.com108.162.193.112 173.245.59.112 172.64.33.112 2803:f800:50::6ca2:c170 2606:4700:58::adf5:3b70 2a06:98c1:50::ac40:2170AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US108.162.193.112 172.64.33.112 173.245.59.112 2606:4700:58::adf5:3b70 2803:f800:50::6ca2:c170 2a06:98c1:50::ac40:2170
uma.ns.cloudflare.com172.64.32.146 108.162.192.146 173.245.58.146 2a06:98c1:50::ac40:2092 2606:4700:50::adf5:3a92 2803:f800:50::6ca2:c092AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US108.162.192.146 172.64.32.146 173.245.58.146 2606:4700:50::adf5:3a92 2803:f800:50::6ca2:c092 2a06:98c1:50::ac40:2092

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: eric.ns.cloudflare.com, uma.ns.cloudflare.com.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 6 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .com
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
eric.ns.cloudflare.com 108.162.193.112NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
eric.ns.cloudflare.com 173.245.59.112NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
eric.ns.cloudflare.com 172.64.33.112NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
eric.ns.cloudflare.com 2803:f800:50::6ca2:c170NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
eric.ns.cloudflare.com 2606:4700:58::adf5:3b70NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
eric.ns.cloudflare.com 2a06:98c1:50::ac40:2170NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
uma.ns.cloudflare.com 172.64.32.146NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
uma.ns.cloudflare.com 108.162.192.146NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
uma.ns.cloudflare.com 173.245.58.146NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
uma.ns.cloudflare.com 2a06:98c1:50::ac40:2092NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
uma.ns.cloudflare.com 2606:4700:50::adf5:3a92NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
uma.ns.cloudflare.com 2803:f800:50::6ca2:c092NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 12 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: eric.ns.cloudflare.com: "2026.10.2"; uma.ns.cloudflare.com: "2026.10.2". Hide or replace the version string.
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2417751775 · primary eric.ns.cloudflare.com

Found

Primary (MNAME)
eric.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417751775
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
eric.ns.cloudflare.com (108.162.193.112)2417751775
eric.ns.cloudflare.com (173.245.59.112)2417751775
eric.ns.cloudflare.com (172.64.33.112)2417751775
eric.ns.cloudflare.com (2803:f800:50::6ca2:c170)2417751775
eric.ns.cloudflare.com (2606:4700:58::adf5:3b70)2417751775
eric.ns.cloudflare.com (2a06:98c1:50::ac40:2170)2417751775
uma.ns.cloudflare.com (172.64.32.146)2417751775
uma.ns.cloudflare.com (108.162.192.146)2417751775
uma.ns.cloudflare.com (173.245.58.146)2417751775
uma.ns.cloudflare.com (2a06:98c1:50::ac40:2092)2417751775
uma.ns.cloudflare.com (2606:4700:50::adf5:3a92)2417751775
uma.ns.cloudflare.com (2803:f800:50::6ca2:c092)2417751775

Checks

  • ✓ Serial 2417751775 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver eric.ns.cloudflare.com is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2417751775 is a Unix timestamp (2046-08-13 05:42 UTC).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

26 records at the apex

Found

Read from
108.162.193.112:53
TypeValueTTL
SOAeric.ns.cloudflare.com. dns.cloudflare.com. 2417751775 10000 2400 604800 18001800
NSeric.ns.cloudflare.com.86400
NSuma.ns.cloudflare.com.86400
A104.19.148.45300
A104.19.149.45300
AAAA2606:4700::6813:952d300
AAAA2606:4700::6813:942d300
MX1 paessler-com.mail.protection.outlook.com.3600
TXT"ZOOM_verify_6IKiIQbURl2eEid7OLBJkg"300
TXT"anthropic-domain-verification-5pgxvm=cFHEHFyIZipm92dWY8jZS0R7W"300
TXT"apple-domain-verification=6KcQFLQIgdrXrkuR"300
TXT"atlassian-domain-verification=bxX5Udw6oJuQQ4BhHtBRzU1yByC5ZIyjAezBDuXV7rVArfJML67QC37x8r23KX0/"300
TXT"cursor-domain-verification-24t60a=KMtXZx9OL37ur7QkEqMl7eUYN"300
TXT"facebook-domain-verification=0bne4m6j9zw3a9lw27xzweec8c5hd6"300
TXT"google-site-verification=2NUIJ4wYcjUv_bPoTPp9Fvj3y7nleD7JxIA1tTkWFKg"300
TXT"google-site-verification=7IzD9GFjT1aHZ6Qui5pECY8Au3zK2e1ehXiJkm6p6ys"300
TXT"google-site-verification=Blq3-berfiFCU5aglwhImD0KyDbIW9w6X3RWRxBcD48"300
TXT"google-site-verification=oKnipiq8dWX5WoSbOODCVPchOfkE0s2gyRSniZlCdR0"300
TXT"google-site-verification=pytKUBZvcrpvMe01MyYc5VhFv5Vo6_f4D6IE6Uc_Jpo"300
TXT"have-i-been-pwned-verification=2142d908afd442e47633e778e5482b96"300
TXT"jamf-site-verification=Qtti28we8gIh5PTzbkrvXw"300
TXT"logmein-verification-code=ea9ddda9-4cb9-489c-a7cd-0e5b417b8ead"300
TXT"miro-verification=96e0acee03579368440ce856eb5112a224d1c88a"300
TXT"q86pbnj96zxpn630wjjnypwys9hk8xzn"300
TXT"sophos-domain-verification=44c1b0da6d18aa6c16efcccc475e940091773bad"300
TXT"v=spf1 ip4:62.146.75.210 ip4:62.146.75.212 include:sendgrid.net include:spf.protection.outlook.com include:2990530.spf10.hubspotemail.net ip4:91.250.95.71 ip4:92.51.187.64/27 ip4:83.169.51.224/27 ip4:80.237.187.32/28 ip4:91.250.74.128/27 ip4:87.230.74.128" "/28 ip4:91.250.95.64/26 ip4:85.25.89.0/24 include:fdspfus.freshemail.io include:fdspfeuc.freshemail.io ip4:147.160.167.0/26 ip4:52.49.201.246 ip4:52.49.235.189 ip4:23.21.109.197 ip4:23.21.109.212 ip4:88.99.206.140 ip4:40.68.36.243 include:_spf.salesforce." "com ip4:195.10.208.0/26 ip6:2001:67c:2050::/48 -all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 1h, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35