trustburn.com

Checked 22 October 2026, 11:13 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 6 info

Registration

info

.com generic · Internet Domain Service BS Corp · expires 2027-08-25

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Internet Domain Service BS Corp
Registered
25 August 2020
Last changed
14 July 2026
Expires
25 August 2027
Status
client transfer prohibited
Registry nameservers
chad.ns.cloudflare.com, rachel.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 2027-08-25 #3
    The registration is valid until 2027-08-25 (307 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

chad.ns.cloudflare.com, rachel.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
chad.ns.cloudflare.com, rachel.ns.cloudflare.com
NS in the zone
chad.ns.cloudflare.com, rachel.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
chad.ns.cloudflare.com108.162.193.82 172.64.33.82 173.245.59.82 2803:f800:50::6ca2:c152 2a06:98c1:50::ac40:2152 2606:4700:58::adf5:3b52AS13335 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., US108.162.193.82 172.64.33.82 173.245.59.82 2606:4700:58::adf5:3b52 2803:f800:50::6ca2:c152 2a06:98c1:50::ac40:2152
rachel.ns.cloudflare.com108.162.192.215 172.64.32.215 173.245.58.215 2803:f800:50::6ca2:c0d7 2a06:98c1:50::ac40:20d7 2606:4700:50::adf5:3ad7AS13335 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., US108.162.192.215 172.64.32.215 173.245.58.215 2606:4700:50::adf5:3ad7 2803:f800:50::6ca2:c0d7 2a06:98c1:50::ac40:20d7

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: chad.ns.cloudflare.com, rachel.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
chad.ns.cloudflare.com 108.162.193.82NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
chad.ns.cloudflare.com 172.64.33.82NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
chad.ns.cloudflare.com 173.245.59.82NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
chad.ns.cloudflare.com 2803:f800:50::6ca2:c152NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
chad.ns.cloudflare.com 2a06:98c1:50::ac40:2152NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
chad.ns.cloudflare.com 2606:4700:58::adf5:3b52NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
rachel.ns.cloudflare.com 108.162.192.215NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
rachel.ns.cloudflare.com 172.64.32.215NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
rachel.ns.cloudflare.com 173.245.58.215NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
rachel.ns.cloudflare.com 2803:f800:50::6ca2:c0d7NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
rachel.ns.cloudflare.com 2a06:98c1:50::ac40:20d7NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
rachel.ns.cloudflare.com 2606:4700:50::adf5:3ad7NOERROR, 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: chad.ns.cloudflare.com: "2026.10.2"; rachel.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 2416947442 · primary chad.ns.cloudflare.com

Found

Primary (MNAME)
chad.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2416947442
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
chad.ns.cloudflare.com (108.162.193.82)2416947442
chad.ns.cloudflare.com (172.64.33.82)2416947442
chad.ns.cloudflare.com (173.245.59.82)2416947442
chad.ns.cloudflare.com (2803:f800:50::6ca2:c152)2416947442
chad.ns.cloudflare.com (2a06:98c1:50::ac40:2152)2416947442
chad.ns.cloudflare.com (2606:4700:58::adf5:3b52)2416947442
rachel.ns.cloudflare.com (108.162.192.215)2416947442
rachel.ns.cloudflare.com (172.64.32.215)2416947442
rachel.ns.cloudflare.com (173.245.58.215)2416947442
rachel.ns.cloudflare.com (2803:f800:50::6ca2:c0d7)2416947442
rachel.ns.cloudflare.com (2a06:98c1:50::ac40:20d7)2416947442
rachel.ns.cloudflare.com (2606:4700:50::adf5:3ad7)2416947442

Checks

  • ✓ Serial 2416947442 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 chad.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 2416947442 is a Unix timestamp (2046-08-03 22:17 UTC).

DNSSEC

warn

Signed, but no DS at parent

Found

Validated by resolver
no
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 10:13 UTC and expires at 2026-10-23 12:13 UTC.

Records

info

17 records at the apex

Found

Read from
108.162.193.82:53
TypeValueTTL
SOAchad.ns.cloudflare.com. dns.cloudflare.com. 2416947442 10000 2400 604800 18001800
NSchad.ns.cloudflare.com.86400
NSrachel.ns.cloudflare.com.86400
A188.114.96.3300
A188.114.97.3300
AAAA2a06:98c1:3120::3300
AAAA2a06:98c1:3121::3300
MX1 aspmx.l.google.com.3600
MX10 alt3.aspmx.l.google.com.3600
MX10 alt4.aspmx.l.google.com.3600
MX5 alt1.aspmx.l.google.com.3600
MX5 alt2.aspmx.l.google.com.3600
TXT"adsy-site-verification=fjr982ryoiiui4932pr444"300
TXT"google-site-verification=AZ5BGuQHxtLn0mcBVBn5qUTWX1tqMp_PX3QGaXfFLpo"300
TXT"google-site-verification=YHyvg6ML6eBRDBYjJlqCb21s47fXFLvuYNsTWzmhx60"300
TXT"lh-verification=c176feb20951f894c57b"300
TXT"v=spf1 +a +mx +ip4:93.190.138.175 include:_spf.google.com ~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