rackspace.com

Checked 22 October 2026, 10:24 UTC · via 8.8.8.8
!Passed with warnings
24 passed 3 warnings 0 failed 4 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-08-13

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
14 August 1998
Last changed
9 August 2026
Expires
13 August 2027
Status
client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
ns.rackspace.com, ns2.rackspace.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 2027-08-13 #3
    The registration is valid until 2027-08-13 (294 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

ns.rackspace.com, ns2.rackspace.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns.rackspace.com, ns2.rackspace.com
NS in the zone
ns.rackspace.com, ns2.rackspace.com
NameserverAddressesNetwork (AS)Glue
ns.rackspace.com69.20.95.4AS27357 RACKSPACE - Rackspace Hosting, US69.20.95.4
ns2.rackspace.com65.61.188.4AS33070 RMH-14 - Rackspace Hosting, US65.61.188.4

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.rackspace.com, ns2.rackspace.com.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns.rackspace.com, ns2.rackspace.com.
  • ✓ 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 2 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS27357 (RACKSPACE - Rackspace Hosting, US): 1 address; AS33070 (RMH-14 - Rackspace Hosting, US): 1 address.
  • 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.rackspace.com 69.20.95.4NOERROR, 88 ms, authoritativenoyes / yesrefused-
ns2.rackspace.com 65.61.188.4NOERROR, 17 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 2 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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

warn

serial 1792262181 · primary ns.rackspace.com

Found

Primary (MNAME)
ns.rackspace.com
Contact (RNAME)
hostmaster.rackspace.com
Serial
1792262181
Refresh / retry
300 s / 300 s
Expire
1814400 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns.rackspace.com (69.20.95.4)1792262181
ns2.rackspace.com (65.61.188.4)1792262181

Checks

  • ✓ Serial 1792262181 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 5m is outside 20m–1d; retry 5m should be shorter than refresh 5m. Current values: refresh 5m, retry 5m, expire 21d, negative TTL 5m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.rackspace.com is one of the listed nameservers.
  • ✓ Contact hostmaster@rackspace.com #25
    The SOA RNAME hostmaster.rackspace.com means hostmaster@rackspace.com.
  • ✓ Timestamp serial #26
    The serial 1792262181 is a Unix timestamp (2026-10-17 18:36 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

23 records at the apex

Found

Read from
69.20.95.4:53
TypeValueTTL
SOAns.rackspace.com. hostmaster.rackspace.com. 1792262181 300 300 1814400 300300
NSns2.rackspace.com.86400
NSns.rackspace.com.86400
A52.1.14.22186400
A3.227.192.22986400
MX10 rackspace-com.mail.protection.outlook.com.300
TXT"anthropic-domain-verification-rnrfy1=fE0MMW8vO1OD2IpIwnxg9PQpy"3600
TXT"google-site-verification=gOBmNq8zRo0Mwju8NhdJUBMXfMHmux-XzMQ3obObp0c"3600
TXT"v=spf1 include:spf_a.rackspace.com include:spf_b.rackspace.com include:spf.protection.outlook.com include:mailgun.org -all"3600
TXT"16600baa-c8cf-4ce6-88c0-fc9fa3f6fd19"3600
TXT"MS=ms45524193"3600
TXT"y/6lk4AhKuCVb+XZ3YJGfT1oBfIEKfl2AMuwfmcR5RWKHTC/QbiiFqaveJTsUlYmrAjXGQZyYKWZsgTAGuCgzQ=="3600
TXT"docusign=f39f54dd-4993-4be2-8861-eeb5c9941875"3600
TXT"google-site-verification=z2aDwPH4Lq9j_7Fj0U4Puz3hHk8wcpIuxMXZUI80kJc"3600
TXT"docusign=50d8be89-ad11-4aee-8e11-3c75e74aafc8"3600
TXT"apple-domain-verification=fSW4Mu2Rukg86QP4"3600
TXT"854ff9f7-193a-490d-a219-e559cd86c3ff"3600
TXT"montycloud=c3091adfd00e6377b9eac694aef5e616"3600
TXT"google-site-verification=hjn98i9hop-Qu_6JSTrV7MGqNMuPkHqxQejxjBdK_AQ"3600
TXT"openai-domain-verification=dv-dfuARwBMBJPw1QgYwuMhlNGN"3600
TXT"pexip-ms-tenant-domain-verification=1fdd6c26-e097-4616-931c-95fb8881efcd"3600
TXT"atlassian-domain-verification=jMtVkwHW7SnBUnyWkLXlgEOcJOy1tSD6QM1hcjebXdrl1MF536MQ9FgaMyI8JYAX"3600
TXT"sophos-domain-verification=33beaba7a58282a665eab1fd66d3b1e0b865f2828c02d09ff22786c2f5300828"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, 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.
  • 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