roblox.com

Checked 22 October 2026, 10:32 UTC · via 8.8.8.8
!Passed with warnings
25 passed 4 warnings 0 failed 2 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-01-30

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
30 January 2004
Last changed
17 August 2026
Expires
30 January 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
nspx1.roblox.com, nspx2.roblox.net, nspx3.roblox.us, nspx4.roblox.co.uk
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 2027-01-30 #3
    The registration is valid until 2027-01-30 (99 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update 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

nspx1.roblox.com, nspx2.roblox.net, nspx3.roblox.us, nspx4.roblox.co.uk

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
nspx1.roblox.com, nspx2.roblox.net, nspx3.roblox.us, nspx4.roblox.co.uk
NS in the zone
nspx1.roblox.com, nspx2.roblox.net, nspx3.roblox.us, nspx4.roblox.co.uk
NameserverAddressesNetwork (AS)Glue
nspx1.roblox.com128.116.64.1AS22697 ROBLOX-PRODUCTION - Roblox, US128.116.64.1
nspx2.roblox.net128.116.64.65AS22697 ROBLOX-PRODUCTION - Roblox, US-
nspx3.roblox.us128.116.64.129AS22697 ROBLOX-PRODUCTION - Roblox, US-
nspx4.roblox.co.uk128.116.64.193AS22697 ROBLOX-PRODUCTION - Roblox, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to nspx1.roblox.com, nspx2.roblox.net, nspx3.roblox.us, nspx4.roblox.co.uk.
  • ✓ 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: nspx1.roblox.com.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • !
    Nameservers in one network
    all IPv4 addresses are in 128.116.64.0/24. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS22697 (ROBLOX-PRODUCTION - Roblox, US): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .com, .net, .uk, .us.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
nspx1.roblox.com 128.116.64.1NOERROR, 9 ms, authoritativenoyes / yesrefused-
nspx2.roblox.net 128.116.64.65NOERROR, 10 ms, authoritativenoyes / yesrefused-
nspx3.roblox.us 128.116.64.129NOERROR, 3 ms, authoritativenoyes / yesrefused-
nspx4.roblox.co.uk 128.116.64.193NOERROR, 5 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 4 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

pass

serial 1788382929 · primary nspx1.roblox.com

Found

Primary (MNAME)
nspx1.roblox.com
Contact (RNAME)
dns.roblox.com
Serial
1788382929
Refresh / retry
3600 s / 600 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
nspx1.roblox.com (128.116.64.1)1788382929
nspx2.roblox.net (128.116.64.65)1788382929
nspx3.roblox.us (128.116.64.129)1788382929
nspx4.roblox.co.uk (128.116.64.193)1788382929

Checks

  • ✓ Serial 1788382929 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver nspx1.roblox.com is one of the listed nameservers.
  • ✓ Contact dns@roblox.com #25
    The SOA RNAME dns.roblox.com means dns@roblox.com.
  • ✓ Timestamp serial #26
    The serial 1788382929 is a Unix timestamp (2026-09-02 21:02 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

warn

50 records at the apex

Found

Read from
128.116.64.1:53
TypeValueTTL
SOAnspx1.roblox.com. dns.roblox.com. 1788382929 3600 600 604800 3003600
NSnspx1.roblox.com.86400
NSnspx2.roblox.net.86400
NSnspx3.roblox.us.86400
NSnspx4.roblox.co.uk.86400
A128.116.44.360
MX1 aspmx.l.google.com.60
MX5 alt1.aspmx.l.google.com.60
MX5 alt2.aspmx.l.google.com.60
MX10 alt3.aspmx.l.google.com.60
MX10 alt4.aspmx.l.google.com.60
TXT"MS=ms35973480"600
TXT"ZOOM_verify_lMeKFSo1Tq22CpfWknKT3A"600
TXT"_a9cffqfxf1959e73i8s27rbks5e14gg"600
TXT"_nglrwy78ihfxn8jlvnzokktgjrh4d36"600
TXT"_x1vqsgw9maigoafo0bxuxi3rlobarzi"600
TXT"airtable-verification=76192b13c79bb96bc8dc2c6cc52931a9"600
TXT"anthropic-domain-verification-b6v3qb=ol0z6i5UA7OpwvvbwlyTmRdpz"600
TXT"apple-domain-verification=2K2yyRHWOTtsNXj8"600
TXT"asv=3196d2e734455753221e7819d1c081d4"600
TXT"atlassian-domain-verification=TRNSmfCcYn22IqU1Q7y4OOU8BMHhZJru/qaj1RRP09wybG/vli6QA/GlDy5DiHlC"600
TXT"awx-verification=RH4jLohK3QZtMAm_O01QlXn--RopUt_i5-vuqYCoc28"600
TXT"canva-site-verification=HqTNMHwVpwjaPKTDBYBeOQ"600
TXT"cursor-domain-verification-es113k=aRQcoJrZ8VAqlgehtPZpvqbNi"600
TXT"docker-verification=c4c1f9b2-ec67-4e81-932a-d0901bfe3ec8"600
TXT"docusign=87e6c56c-d05e-49fb-b9e4-44e893597e5a"600
TXT"docusign=f4bd74a3-5d72-4e08-beb5-e6936e0c08ee"600
TXT"dropbox-domain-verification=ek74bxiun7me"600
TXT"google-site-verification=BfkEEZ1dsSAEJIS1yV2prCFgO8zboMYioG1c9VITB5Y"600
TXT"hcp-domain-verification=4fe724b224f8665817b970b4cf9d41432119d0a8d7df547ab9d855405ed98df0"600
TXT"openai-domain-verification=dv-xsXfn7ITEPtbGzeIsvIE9ZsY"600
TXT"projectdiscovery-verification=849645bafc"600
TXT"rpaii9qhgu8k5o721gogq8h4b7"600
TXT"slack-domain-verification=tOXc1vdAStyaHLdFO66ghB9rtuFbMcMXaT3RviGB"600
TXT"spycloud-domain-verification=92156356-5b94-4b1a-8346-16360c74b060"600
TXT"stripe-verification=20b1c5cc2088de9c7ab305e2d1455be903a42175ffd8a69034b3a231665c1b66"600
TXT"stripe-verification=352a73068ad6747757692cb324fa82815c5d1aac0df46122bb292ee6e7a6a504"600
TXT"stripe-verification=b4b0304bd523728ef00a8a9701699dc781cb2733d29108637377e5c16e2bb2e6"600
TXT"stripe-verification=d9a22bf4ff3fa1e244325bc511ff7832423ea2312809396df010807307102d73"600
TXT"v=spf1 include:_spf.google.com ip4:50.232.73.154/32 ip4:64.124.125.0/26 ip4:208.185.173.0/24 ip4:208.185.116.0/25 ip4:64.125.149.0/24 ip4:8.42.96.0/24 ip4:216.200.230.0/24 ip4:8.42.100.0/24 include:_spf_20190122.roblox.com include:mail.zendesk.com -all"600
TXT"work-accounts-domain-verification=Vuq8HG6vYrBHHsgccu7oMzGiC7fMoJ"600
TXT"wrike-verification=Mzc5OTIyMTo2MjJkODg0ODc4ZGMzODM1OWUzZWY4NmNkZjRmN2JkNWQwMjQ3MjliYmQ5MjIyMGI2ZDBmY2E3NzJlNzdhMDE5"600
TXT"zendeskverification.roblox.com"600
CAA0 iodef "mailto:certs@roblox.com"3600
CAA0 issue "digicert.com"3600
CAA0 issue "sectigo.com"3600
CAA0 issue "amazon.com"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "pki.goog"3600
CAA0 issue "globalsign.com"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m). 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: digicert.com, sectigo.com, amazon.com, letsencrypt.org, pki.goog, globalsign.com.