thetrainline.com

Checked 22 October 2026, 11:03 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 6 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2026-12-06

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
7 December 1998
Last changed
2 December 2025
Expires
6 December 2026
Status
client transfer prohibited
Registry nameservers
chuck.ns.cloudflare.com, journey.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 2026-12-06 #3
    The registration is valid until 2026-12-06 (44 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

chuck.ns.cloudflare.com, journey.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
chuck.ns.cloudflare.com, journey.ns.cloudflare.com
NS in the zone
chuck.ns.cloudflare.com, journey.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
chuck.ns.cloudflare.com108.162.193.86 173.245.59.86 172.64.33.86 2a06:98c1:50::ac40:2156 2803:f800:50::6ca2:c156 2606:4700:58::adf5:3b56AS13335 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., US108.162.193.86 172.64.33.86 173.245.59.86 2606:4700:58::adf5:3b56 2803:f800:50::6ca2:c156 2a06:98c1:50::ac40:2156
journey.ns.cloudflare.com108.162.194.3 172.64.34.3 162.159.38.3 2a06:98c1:50::ac40:2203 2803:f800:50::6ca2:c203 2606:4700:50::a29f:2603AS13335 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., US108.162.194.3 162.159.38.3 172.64.34.3 2606:4700:50::a29f:2603 2803:f800:50::6ca2:c203 2a06:98c1:50::ac40:2203

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: chuck.ns.cloudflare.com, journey.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
chuck.ns.cloudflare.com 108.162.193.86NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
chuck.ns.cloudflare.com 173.245.59.86NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
chuck.ns.cloudflare.com 172.64.33.86NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
chuck.ns.cloudflare.com 2a06:98c1:50::ac40:2156NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
chuck.ns.cloudflare.com 2803:f800:50::6ca2:c156NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
chuck.ns.cloudflare.com 2606:4700:58::adf5:3b56NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
journey.ns.cloudflare.com 108.162.194.3NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
journey.ns.cloudflare.com 172.64.34.3NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
journey.ns.cloudflare.com 162.159.38.3NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
journey.ns.cloudflare.com 2a06:98c1:50::ac40:2203NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
journey.ns.cloudflare.com 2803:f800:50::6ca2:c203NOERROR, 9 ms, authoritativenoyes / yesrefused2026.10.2
journey.ns.cloudflare.com 2606:4700:50::a29f:2603NOERROR, 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: chuck.ns.cloudflare.com: "2026.10.2"; journey.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 2417914272 · primary chuck.ns.cloudflare.com

Found

Primary (MNAME)
chuck.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417914272
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
chuck.ns.cloudflare.com (108.162.193.86)2417914272
chuck.ns.cloudflare.com (173.245.59.86)2417914272
chuck.ns.cloudflare.com (172.64.33.86)2417914272
chuck.ns.cloudflare.com (2a06:98c1:50::ac40:2156)2417914272
chuck.ns.cloudflare.com (2803:f800:50::6ca2:c156)2417914272
chuck.ns.cloudflare.com (2606:4700:58::adf5:3b56)2417914272
journey.ns.cloudflare.com (108.162.194.3)2417914272
journey.ns.cloudflare.com (172.64.34.3)2417914272
journey.ns.cloudflare.com (162.159.38.3)2417914272
journey.ns.cloudflare.com (2a06:98c1:50::ac40:2203)2417914272
journey.ns.cloudflare.com (2803:f800:50::6ca2:c203)2417914272
journey.ns.cloudflare.com (2606:4700:50::a29f:2603)2417914272

Checks

  • ✓ Serial 2417914272 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 chuck.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 2417914272 is a Unix timestamp (2046-08-15 02:51 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
23 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
2371ECDSAP256SHA256 (13)SHA256 2A92C4F1A7DFE64A…yes

DNSKEY in the zone

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

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 2371 (SHA256).
  • ✓ 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 10:03 UTC and expires at 2026-10-23 12:03 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

warn

36 records at the apex

Found

Read from
108.162.193.86:53
TypeValueTTL
SOAchuck.ns.cloudflare.com. dns.cloudflare.com. 2417914272 10000 2400 604800 18001800
NSchuck.ns.cloudflare.com.86400
NSjourney.ns.cloudflare.com.86400
A52.222.214.12854
A52.222.214.554
A52.222.214.2854
A52.222.214.11354
MX0 thetrainline-com.mail.protection.outlook.com.3600
TXT"2548c894-e9d4-4c0e-b2eb-662fa4cef489"300
TXT"CKO=cli_d3f5bogcmyburfc2k2kxg7vws4"300
TXT"MS=ms71298604"300
TXT"O7AQVjfEUlP7/KfKARHZCWvCvxEIPHeO6DtkRo+k4ig966IbIfvGZYvaG4JQcc0/hRfsNY9oG8v16htmYprIrA=="300
TXT"Trustpilot-Verification-kqvVskCm6JQ9Vg1qAmahpBSJ5tvZORbriFyVIk4E"300
TXT"_globalsign-domain-verification=WUfX3hsvixxhA-MyAYS2p1ydSYaX1ZjDPlEbmVhcfT"300
TXT"_globalsign-domain-verification=mTEzKXy-0xQSCiupoeH27RPKTkYIhFhEXTvtiZQF8U"300
TXT"anthropic-domain-verification-fnat0r=sDVQFAsNZ82jIkBOvkkcSDYT3"300
TXT"as=1483625869"300
TXT"atlassian-domain-verification=nrd7IY7RKQBPxk9ztZC7r2BqXiFFX0qsBcU9BQPVPvaaoGzRMY88lUSaOSB6pdri"300
TXT"dropbox-domain-verification=xmn5u2vbnn86"300
TXT"elevenlabs=E6sj7vZJ6jTvtLOrle7o3yTco85EyHi0Fsjib1S9m9I"300
TXT"facebook-domain-verification=xhmbtl18g0swqcz33xbvk0zcr9sfik"300
TXT"facebook-domain-verification=yxu4e5x57ifadqon3zme5jdzaosiww"300
TXT"globalsign-domain-verification=D0CEED975DCDB4A8F88A179D3A96310D"300
TXT"globalsign-domain-verification=FB54BE6DD544F85EEAA68B2C127423F5"300
TXT"globalsign-domain-verification=dLzusaPb1exavXBkEXpSYmqHIo5S6VYUGU-wxKlnf1"300
TXT"google-site-verification=8FiyJFUBzyPfjOojl1-tvoHwluWxmMBcY-zSuwXMK7A"300
TXT"google-site-verification=LnNQArC8rgeQ8pACZQbOJr8RWSgv4hlUSrFPknxNaaY"300
TXT"google-site-verification=d30_vV9AIjRvxczBWu0XZqo6MjWY6u5Z5U5VOvyQnSU"300
TXT"google-site-verification=mgqEaO42I0yq9FUr4asuuudI-JFOuZ6NfrbOsCkoSCY"300
TXT"jamf-site-verification=k23hwMD31hFVdMKApP7i9w"300
TXT"jetbrains-domain-verification=4000fd11geocn4cq3oumucmkb"300
TXT"miro-verification=725a6c92d301f7228f85f9ca5445979adb6e1838"300
TXT"notion-domain-verification=IYxCZuFdRqUIZ8b9U7HHHdJtkOgO0UFxAeTviGZRjHQ"300
TXT"openai-domain-verification=dv-duhUireEPXtqf08vSi0LE3Us"300
TXT"v=spf1 include:spf.protection.outlook.com include:mailgun.org ip4:168.245.67.115 include:authsmtp.com include:amazonses.com include:mail.zendesk.com ~all"300
TXT"vmware-cloud-verification-23710926-1698-4b13-8bb5-fe7019aa1b1c"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (54s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
    #32
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • 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