skift.com

Checked 22 October 2026, 10:43 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2031-07-16

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
16 July 2004
Last changed
17 July 2026
Expires
16 July 2031
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
joel.ns.cloudflare.com, rita.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 2031-07-16 #3
    The registration is valid until 2031-07-16 (1727 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

joel.ns.cloudflare.com, rita.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
joel.ns.cloudflare.com, rita.ns.cloudflare.com
NS in the zone
joel.ns.cloudflare.com, rita.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
joel.ns.cloudflare.com173.245.59.184 108.162.193.184 172.64.33.184 2606:4700:58::adf5:3bb8 2803:f800:50::6ca2:c1b8 2a06:98c1:50::ac40:21b8AS13335 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., US108.162.193.184 172.64.33.184 173.245.59.184 2606:4700:58::adf5:3bb8 2803:f800:50::6ca2:c1b8 2a06:98c1:50::ac40:21b8
rita.ns.cloudflare.com173.245.58.140 108.162.192.140 172.64.32.140 2606:4700:50::adf5:3a8c 2803:f800:50::6ca2:c08c 2a06:98c1:50::ac40:208cAS13335 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., US108.162.192.140 172.64.32.140 173.245.58.140 2606:4700:50::adf5:3a8c 2803:f800:50::6ca2:c08c 2a06:98c1:50::ac40:208c

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: joel.ns.cloudflare.com, rita.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
joel.ns.cloudflare.com 173.245.59.184NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
joel.ns.cloudflare.com 108.162.193.184NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
joel.ns.cloudflare.com 172.64.33.184NOERROR, 7 ms, authoritativenoyes / yesrefused2026.10.2
joel.ns.cloudflare.com 2606:4700:58::adf5:3bb8NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
joel.ns.cloudflare.com 2803:f800:50::6ca2:c1b8NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
joel.ns.cloudflare.com 2a06:98c1:50::ac40:21b8NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 173.245.58.140NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 108.162.192.140NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 172.64.32.140NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 2606:4700:50::adf5:3a8cNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 2803:f800:50::6ca2:c08cNOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
rita.ns.cloudflare.com 2a06:98c1:50::ac40:208cNOERROR, 6 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: joel.ns.cloudflare.com: "2026.10.2"; rita.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 2417997057 · primary joel.ns.cloudflare.com

Found

Primary (MNAME)
joel.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417997057
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
joel.ns.cloudflare.com (173.245.59.184)2417997057
joel.ns.cloudflare.com (108.162.193.184)2417997057
joel.ns.cloudflare.com (172.64.33.184)2417997057
joel.ns.cloudflare.com (2606:4700:58::adf5:3bb8)2417997057
joel.ns.cloudflare.com (2803:f800:50::6ca2:c1b8)2417997057
joel.ns.cloudflare.com (2a06:98c1:50::ac40:21b8)2417997057
rita.ns.cloudflare.com (173.245.58.140)2417997057
rita.ns.cloudflare.com (108.162.192.140)2417997057
rita.ns.cloudflare.com (172.64.32.140)2417997057
rita.ns.cloudflare.com (2606:4700:50::adf5:3a8c)2417997057
rita.ns.cloudflare.com (2803:f800:50::6ca2:c08c)2417997057
rita.ns.cloudflare.com (2a06:98c1:50::ac40:208c)2417997057

Checks

  • ✓ Serial 2417997057 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 joel.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 2417997057 is a Unix timestamp (2046-08-16 01:50 UTC).

DNSSEC

warn

Signed, but no DS at parent

Found

Validated by resolver
no
Denial of existence
NSEC
Signatures valid until
23 October 2026

DNSKEY in the zone

Key tagRoleAlgorithm
2371KSK (257)ECDSAP256SHA256 (13)
34505ZSK (256)ECDSAP256SHA256 (13)

Checks

  • !
    Signed but not delegated securely
    The zone is signed but the parent has no DS record, so the signatures are not used. Publish the DS record at your registrar.
    #27
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-21 09:43 UTC and expires at 2026-10-23 11:43 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

pass

29 records at the apex

Found

Read from
173.245.59.184:53
TypeValueTTL
SOAjoel.ns.cloudflare.com. dns.cloudflare.com. 2417997057 10000 2400 604800 18001800
NSjoel.ns.cloudflare.com.86400
NSrita.ns.cloudflare.com.86400
A172.66.135.209300
A172.66.139.129300
AAAA2606:4700:10::ac42:87d1300
AAAA2606:4700:10::ac42:8b81300
MX10 aspmx.l.google.com.300
MX20 alt1.aspmx.l.google.com.300
MX20 alt2.aspmx.l.google.com.300
MX30 aspmx2.googlemail.com.300
MX30 aspmx3.googlemail.com.300
MX30 aspmx4.googlemail.com.300
MX30 aspmx5.googlemail.com.300
TXT"apple-domain-verification=YY5MnL4Gm2zHry4apZo7eLv7l9laRcre0S_EGJ6kRPU"300
TXT"google-site-verification=WE1K-7i0cG66D2aYLHVIBb4h67O1F105VrQNQO-jDbg"300
TXT"google-site-verification=gQg2veFevA00irNA4E4v-FxSJZ46caw-yFMt3MSsE3g"300
TXT"mandrill_verify.k3DLhSmAlKMINXGJh-oRLw"300
TXT"v=spf1 include:449646.spf03.hubspotemail.net include:_spf.google.com"300
CAA0 issue "comodoca.com"3600
CAA0 issue "digicert.com; cansignhttpexchanges=yes"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "pki.goog; cansignhttpexchanges=yes"3600
CAA0 issue "ssl.com"3600
CAA0 issuewild "comodoca.com"3600
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"3600
CAA0 issuewild "letsencrypt.org"3600
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"3600
CAA0 issuewild "ssl.com"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 5m, 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.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com.