infobip.com

Checked 22 October 2026, 09:20 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.com generic · CSL Computer Service Langenbach GmbH d/b/a joker.com · expires 2027-10-16

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSL Computer Service Langenbach GmbH d/b/a joker.com
Registered
16 October 2003
Last changed
22 January 2026
Expires
16 October 2027
Status
client transfer prohibited
Registry nameservers
ns-1008.awsdns-62.net, ns-1429.awsdns-50.org, ns-1844.awsdns-38.co.uk, ns-500.awsdns-62.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 2027-10-16 #3
    The registration is valid until 2027-10-16 (359 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

ns-1008.awsdns-62.net, ns-1429.awsdns-50.org, ns-1844.awsdns-38.co.uk, ns-500.awsdns-62.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1008.awsdns-62.net, ns-1429.awsdns-50.org, ns-1844.awsdns-38.co.uk, ns-500.awsdns-62.com
NS in the zone
ns-1008.awsdns-62.net, ns-1429.awsdns-50.org, ns-1844.awsdns-38.co.uk, ns-500.awsdns-62.com
NameserverAddressesNetwork (AS)Glue
ns-1008.awsdns-62.net205.251.195.240 2600:9000:5303:f000::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1429.awsdns-50.org205.251.197.149 2600:9000:5305:9500::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1844.awsdns-38.co.uk205.251.199.52 2600:9000:5307:3400::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-500.awsdns-62.com205.251.193.244 2600:9000:5301:f400::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.244 2600:9000:5301:f400::1

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1008.awsdns-62.net, ns-1429.awsdns-50.org, ns-1844.awsdns-38.co.uk, ns-500.awsdns-62.com.
  • ✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 8 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, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1008.awsdns-62.net 205.251.195.240NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1008.awsdns-62.net 2600:9000:5303:f000::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1429.awsdns-50.org 205.251.197.149NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1429.awsdns-50.org 2600:9000:5305:9500::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1844.awsdns-38.co.uk 205.251.199.52NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1844.awsdns-38.co.uk 2600:9000:5307:3400::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-500.awsdns-62.com 205.251.193.244NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-500.awsdns-62.com 2600:9000:5301:f400::1NOERROR, 9 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 8 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 1 · primary ns-1008.awsdns-62.net

Found

Primary (MNAME)
ns-1008.awsdns-62.net
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1008.awsdns-62.net (205.251.195.240)1
ns-1008.awsdns-62.net (2600:9000:5303:f000::1)1
ns-1429.awsdns-50.org (205.251.197.149)1
ns-1429.awsdns-50.org (2600:9000:5305:9500::1)1
ns-1844.awsdns-38.co.uk (205.251.199.52)1
ns-1844.awsdns-38.co.uk (2600:9000:5307:3400::1)1
ns-500.awsdns-62.com (205.251.193.244)1
ns-500.awsdns-62.com (2600:9000:5301:f400::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-1008.awsdns-62.net is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

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

38 records at the apex

Found

Read from
205.251.195.240:53
TypeValueTTL
SOAns-1008.awsdns-62.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1008.awsdns-62.net.172800
NSns-1429.awsdns-50.org.172800
NSns-1844.awsdns-38.co.uk.172800
NSns-500.awsdns-62.com.172800
A18.156.21.25560
A3.121.7.11760
MX10 mx1.hc221-54.eu.iphmx.com.305
MX10 mx2.hc221-54.eu.iphmx.com.305
TXT"8laxqpzlTEaygLnoeBrqJTm0KABVx3ZThe1cbJQrPRVDQ06DkUOdVXSj+dqI0ip3fhb0hTAC3bohdPgRUjqQDQ=="361
TXT"_bvf7m1cndd5tm9gwkfz5o8rs8yce541"361
TXT"airtable-verification=4f9fbf43a6d448b94b294ca48959a7f0"361
TXT"anthropic-domain-verification-fwd3h2=1acrfPLWjgb16Au3CZ344HDbS"361
TXT"apple-domain-verification=rbcF5FTLeCuKVSB1"361
TXT"asv=a5508d0ef1f6c8595254ee0d285a2fe0"361
TXT"atlassian-domain-verification=zaDreQpeZVAUXkgR79HpGrBEkgfP4VSV0C5lPvmP6KcfpJ/8DxE2dDs8S6IPaXNB"361
TXT"atlassian-sending-domain-verification=b89735bd-ea5f-4402-8ee4-77cd5d3e43df"361
TXT"cursor-domain-verification-97kkg5=RkMO8dKhH7cCyeTnjsJ4K3mM8"361
TXT"docusign=19be0ae7-7924-47f3-9562-13bf604f783e"361
TXT"google-site-verification=0T25QbvVgi5nmCox2D4gw1BJc_Xbpmq2rSJPm_0g7ho"361
TXT"google-site-verification=HNCCR8kDDLUl0gr1yhG5Lqpr93pTFHROKQKUCnUILy4"361
TXT"google-site-verification=LFR9xXxpma9IuFnBo3DEqE3iKn7FisMqGofHg1ocfC8"361
TXT"google-site-verification=U9yUhTW7WDiFonlqJZO_KiPMRwZwf52If3nvsGdLMbg"361
TXT"google-site-verification=uBOf46_P_rVWv04NMp-sS-BD7ta5hzwO66N8RMwdDxk"361
TXT"google-site-verification=waWTILy_V3RL_A86zrhWnbp-DvqeivG5z_ZXX6oAUfM"361
TXT"hubspot-developer-verification=YzQzZjgxOTItYzA3OS00MWJjLThlZWUtNTM2NDc2MzhhODIw"361
TXT"logmein-domain-confirmation=ajhnsfZ893Tpl"361
TXT"logmein-domain-confirmation=giegh4ahngeethae6rui7thohs9iezox1eK0eh2AhWezeefeisieboom5siwohF6ieTengahsoo1johphighouf1AyaegaeL0aiv"361
TXT"mFXKUeJnZAQqst1VwagXNw"361
TXT"mandrill_verify.qqUbJq9bFHmq31NGM3BbPw"361
TXT"miro-verification=431eb79990e90c45de058e90e156a1bcfb9ad053"361
TXT"neat-pulse-domain-verification-r6N62kN=88b7d318-df4e-437e-87b6-be6d1a2e0fb5"361
TXT"onetrust-domain-verification=117cb436d0d344318c89d118c58b92eb"361
TXT"openai-domain-verification=dv-uxZHXTCuw1LF1aLdxdEXwMeh"361
TXT"postman-domain-verification=57a0ef08a2f476edf361c687f7a3d121375c9caf117463c6078c5b743949c560"361
TXT"status-page-domain-verification=hfjk8hg83v90"361
TXT"uber-domain-verification=d4fffd92-2974-497e-9f24-087729e96b15"361
TXT"v=spf1 a mx exists:%{i}._spf.mta.salesforce.com include:spf.mandrillapp.com include:_spfblocks1.infobip.com include:_spfblocks2.infobip.com include:_spfblocks3.infobip.com include:_spfblocks4.infobip.com include:stspg-customer.com -all"361

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change.
    #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