softwareadvice.com

Checked 22 October 2026, 10:45 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-05-24

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
24 May 2005
Last changed
25 July 2025
Expires
24 May 2027
Status
client transfer prohibited
Registry nameservers
evan.ns.cloudflare.com, raphaela.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 2027-05-24 #3
    The registration is valid until 2027-05-24 (214 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

evan.ns.cloudflare.com, raphaela.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
evan.ns.cloudflare.com, raphaela.ns.cloudflare.com
NS in the zone
evan.ns.cloudflare.com, raphaela.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
evan.ns.cloudflare.com172.64.33.165 108.162.193.165 173.245.59.165 2a06:98c1:50::ac40:21a5 2803:f800:50::6ca2:c1a5 2606:4700:58::adf5:3ba5AS13335 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., US108.162.193.165 172.64.33.165 173.245.59.165 2606:4700:58::adf5:3ba5 2803:f800:50::6ca2:c1a5 2a06:98c1:50::ac40:21a5
raphaela.ns.cloudflare.com172.64.34.192 108.162.194.192 162.159.38.192 2606:4700:50::a29f:26c0 2a06:98c1:50::ac40:22c0 2803:f800:50::6ca2:c2c0AS13335 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., US108.162.194.192 162.159.38.192 172.64.34.192 2606:4700:50::a29f:26c0 2803:f800:50::6ca2:c2c0 2a06:98c1:50::ac40:22c0

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: evan.ns.cloudflare.com, raphaela.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
evan.ns.cloudflare.com 172.64.33.165NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
evan.ns.cloudflare.com 108.162.193.165NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
evan.ns.cloudflare.com 173.245.59.165NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
evan.ns.cloudflare.com 2a06:98c1:50::ac40:21a5NOERROR, 7 ms, authoritativenoyes / yesrefused2026.10.2
evan.ns.cloudflare.com 2803:f800:50::6ca2:c1a5NOERROR, 7 ms, authoritativenoyes / yesrefused2026.10.2
evan.ns.cloudflare.com 2606:4700:58::adf5:3ba5NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
raphaela.ns.cloudflare.com 172.64.34.192NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
raphaela.ns.cloudflare.com 108.162.194.192NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
raphaela.ns.cloudflare.com 162.159.38.192NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
raphaela.ns.cloudflare.com 2606:4700:50::a29f:26c0NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
raphaela.ns.cloudflare.com 2a06:98c1:50::ac40:22c0NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
raphaela.ns.cloudflare.com 2803:f800:50::6ca2:c2c0NOERROR, 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: evan.ns.cloudflare.com: "2026.10.2"; raphaela.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 2416883044 · primary evan.ns.cloudflare.com

Found

Primary (MNAME)
evan.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2416883044
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
evan.ns.cloudflare.com (172.64.33.165)2416883044
evan.ns.cloudflare.com (108.162.193.165)2416883044
evan.ns.cloudflare.com (173.245.59.165)2416883044
evan.ns.cloudflare.com (2a06:98c1:50::ac40:21a5)2416883044
evan.ns.cloudflare.com (2803:f800:50::6ca2:c1a5)2416883044
evan.ns.cloudflare.com (2606:4700:58::adf5:3ba5)2416883044
raphaela.ns.cloudflare.com (172.64.34.192)2416883044
raphaela.ns.cloudflare.com (108.162.194.192)2416883044
raphaela.ns.cloudflare.com (162.159.38.192)2416883044
raphaela.ns.cloudflare.com (2606:4700:50::a29f:26c0)2416883044
raphaela.ns.cloudflare.com (2a06:98c1:50::ac40:22c0)2416883044
raphaela.ns.cloudflare.com (2803:f800:50::6ca2:c2c0)2416883044

Checks

  • ✓ Serial 2416883044 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver evan.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 2416883044 is a Unix timestamp (2046-08-03 04:24 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

pass

32 records at the apex

Found

Read from
172.64.33.165:53
TypeValueTTL
SOAevan.ns.cloudflare.com. dns.cloudflare.com. 2416883044 10000 2400 604800 300300
NSevan.ns.cloudflare.com.86400
NSraphaela.ns.cloudflare.com.86400
A104.16.136.228300
A104.16.137.228300
MX1 aspmx.l.google.com.300
MX10 ALT3.ASPMX.L.GOOGLE.com.300
MX10 ALT4.ASPMX.L.GOOGLE.com.300
MX5 alt1.aspmx.l.google.com.300
MX5 alt2.aspmx.l.google.com.300
TXT"8ncg1dzbshnrxpwwsr5s6cqmx010dsfx"300
TXT"facebook-domain-verification=6sr3jfw5v0pmvov30ffrtimkkbozy1"300
TXT"google-site-verification=LWX-wSMEHWaTfYcjChj_gCrrYBK6R2LqKgJ1B0P96MQ"300
TXT"google-site-verification=Z1YXgQWRCBRG1_9OwE9XJvctWLAL38yhdXcSjkFBHwM"300
TXT"google-site-verification=uNiopzvU3hMmoYLZjo00AfKPddacUCh-OHu3pjBXp9I"300
TXT"ps-cd-verification=f3f0786d-f607-40db-a54b-b839afd5fbb2"300
TXT"v=spf1 include:spf1.softwareadvice.com include:spf2.softwareadvice.com ~all"300
CAA0 iodef "mailto:devops@softwareadvice.com"300
CAA0 issue "amazon.com"300
CAA0 issue "comodoca.com"300
CAA0 issue "digicert.com; cansignhttpexchanges=yes"300
CAA0 issue "letsencrypt.org"300
CAA0 issue "pki.goog; cansignhttpexchanges=yes"300
CAA0 issue "sectigo.com"300
CAA0 issue "ssl.com"300
CAA0 issuewild "amazon.com"300
CAA0 issuewild "comodoca.com"300
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"300
CAA0 issuewild "letsencrypt.org"300
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"300
CAA0 issuewild "sectigo.com"300
CAA0 issuewild "ssl.com"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 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: amazon.com, comodoca.com, digicert.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com.