java.com

Checked 22 October 2026, 09:23 UTC · via 8.8.8.8
!Passed with warnings
24 passed 3 warnings 0 failed 4 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-06-05

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
6 June 1996
Last changed
4 May 2026
Expires
5 June 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
a1-250.akam.net, a11-64.akam.net, a13-65.akam.net, a20-65.akam.net, a22-66.akam.net, a24-67.akam.net
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 2027-06-05 #3
    The registration is valid until 2027-06-05 (225 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

a1-250.akam.net, a11-64.akam.net, a13-65.akam.net, a20-65.akam.net, a22-66.akam.net, a24-67.akam.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
a1-250.akam.net, a11-64.akam.net, a13-65.akam.net, a20-65.akam.net, a22-66.akam.net, a24-67.akam.net
NS in the zone
a1-198.akam.net, a11-64.akam.net, a13-65.akam.net, a2-67.akam.net, a20-65.akam.net, a22-64.akam.net, a24-65.akam.net, a24-67.akam.net, a3-66.akam.net, a9-67.akam.net
NameserverAddressesNetwork (AS)Glue
a1-198.akam.net (zone only)193.108.91.198 2600:1401:2::c6AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a1-250.akam.net (parent only)193.108.91.250 2600:1401:2::faAS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a11-64.akam.net84.53.139.64 2600:1480:1::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a13-65.akam.net2.22.230.65 2600:1480:800::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a2-67.akam.net (zone only)95.100.174.67 2600:1480:7000::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a20-65.akam.net95.100.175.65 2a02:26f0:67::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a22-64.akam.net (zone only)23.211.61.64 2600:1480:7800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a22-66.akam.net (parent only)23.211.61.66 2600:1480:7800::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a24-65.akam.net (zone only)2.16.130.65 2600:1480:9800::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a24-67.akam.net2.16.130.67 2600:1480:9800::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a3-66.akam.net (zone only)96.7.49.66 2600:1408:1c::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a9-67.akam.net (zone only)184.85.248.67 2a02:26f0:117::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-250.akam.net, a11-64.akam.net, a13-65.akam.net, a20-65.akam.net, a22-66.akam.net, a24-67.akam.net.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: a1-250.akam.net, a22-66.akam.net; only in the zone: a1-198.akam.net, a2-67.akam.net, a22-64.akam.net, a24-65.akam.net, a3-66.akam.net, a9-67.akam.net. a1-198.akam.net, a1-250.akam.net, a11-64.akam.net, a13-65.akam.net, a2-67.akam.net, a20-65.akam.net, a22-64.akam.net, a22-66.akam.net, a24-65.akam.net, a24-67.akam.net, a3-66.akam.net, a9-67.akam.net report NS a1-198.akam.net a11-64.akam.net a13-65.akam.net a2-67.akam.net a20-65.akam.net a22-64.akam.net a24-65.akam.net a24-67.akam.net a3-66.akam.net a9-67.akam.net.
    #7
  • ✓ 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 9 IPv4 /24s and 9 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 24 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 .net
    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

24 of 24 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-198.akam.net 193.108.91.198NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9
a1-198.akam.net 2600:1401:2::c6NOERROR, 4 ms, authoritativenoyes / yesrefused41824.8
a1-250.akam.net 193.108.91.250NOERROR, 3 ms, authoritativenoyes / yesrefused41824.9
a1-250.akam.net 2600:1401:2::faNOERROR, 3 ms, authoritativenoyes / yesrefused41824.11
a11-64.akam.net 84.53.139.64NOERROR, 4 ms, authoritativenoyes / yesrefused41824.5
a11-64.akam.net 2600:1480:1::40NOERROR, 5 ms, authoritativenoyes / yesrefused41824.6
a13-65.akam.net 2.22.230.65NOERROR, 6 ms, authoritativenoyes / yesrefused41824.7
a13-65.akam.net 2600:1480:800::41NOERROR, 6 ms, authoritativenoyes / yesrefused41824.10
a2-67.akam.net 95.100.174.67NOERROR, 6 ms, authoritativenoyes / yesrefused48878.26
a2-67.akam.net 2600:1480:7000::43NOERROR, 5 ms, authoritativenoyes / yesrefused48878.26
a20-65.akam.net 95.100.175.65NOERROR, 6 ms, authoritativenoyes / yesrefused48878.31
a20-65.akam.net 2a02:26f0:67::41NOERROR, 5 ms, authoritativenoyes / yesrefused48878.33
a22-64.akam.net 23.211.61.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.31
a22-64.akam.net 2600:1480:7800::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a22-66.akam.net 23.211.61.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.26
a22-66.akam.net 2600:1480:7800::42NOERROR, 5 ms, authoritativenoyes / yesrefused48878.32
a24-65.akam.net 2.16.130.65NOERROR, 5 ms, authoritativenoyes / yesrefused48878.29
a24-65.akam.net 2600:1480:9800::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.33
a24-67.akam.net 2.16.130.67NOERROR, 3 ms, authoritativenoyes / yesrefused48878.26
a24-67.akam.net 2600:1480:9800::43NOERROR, 5 ms, authoritativenoyes / yesrefused48878.27
a3-66.akam.net 96.7.49.66NOERROR, 3 ms, authoritativenoyes / yesrefused41824.6
a3-66.akam.net 2600:1408:1c::42NOERROR, 7 ms, authoritativenoyes / yesrefused41824.6
a9-67.akam.net 184.85.248.67NOERROR, 3 ms, authoritativenoyes / yesrefused41824.9
a9-67.akam.net 2a02:26f0:117::43NOERROR, 4 ms, authoritativenoyes / yesrefused41824.11

Checks

  • ✓ All respond #14
    All 24 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: a1-198.akam.net: "41824.9"; a1-198.akam.net: "41824.8"; a1-250.akam.net: "41824.9"; a1-250.akam.net: "41824.11"; a11-64.akam.net: "41824.5"; a11-64.akam.net: "41824.6"; a13-65.akam.net: "41824.7"; a13-65.akam.net: "41824.10"; a2-67.akam.net: "48878.26"; a20-65.akam.net: "48878.31"; a20-65.akam.net: "48878.33"; a22-64.akam.net: "48878.31"; a22-64.akam.net: "48878.27"; a22-66.akam.net: "48878.26"; a22-66.akam.net: "48878.32"; a24-65.akam.net: "48878.29"; a24-65.akam.net: "48878.33"; a24-67.akam.net: "48878.26"; a24-67.akam.net: "48878.27"; a3-66.akam.net: "41824.6"; a9-67.akam.net: "41824.9"; a9-67.akam.net: "41824.11". 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 2026100801 · primary a1-198.akam.net

Found

Primary (MNAME)
a1-198.akam.net
Contact (RNAME)
hostmaster.oracle.com
Serial
2026100801
Refresh / retry
21600 s / 3600 s
Expire
1209600 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
a1-198.akam.net (193.108.91.198)2026100801
a1-198.akam.net (2600:1401:2::c6)2026100801
a1-250.akam.net (193.108.91.250)2026100801
a1-250.akam.net (2600:1401:2::fa)2026100801
a11-64.akam.net (84.53.139.64)2026100801
a11-64.akam.net (2600:1480:1::40)2026100801
a13-65.akam.net (2.22.230.65)2026100801
a13-65.akam.net (2600:1480:800::41)2026100801
a2-67.akam.net (95.100.174.67)2026100801
a2-67.akam.net (2600:1480:7000::43)2026100801
a20-65.akam.net (95.100.175.65)2026100801
a20-65.akam.net (2a02:26f0:67::41)2026100801
a22-64.akam.net (23.211.61.64)2026100801
a22-64.akam.net (2600:1480:7800::40)2026100801
a22-66.akam.net (23.211.61.66)2026100801
a22-66.akam.net (2600:1480:7800::42)2026100801
a24-65.akam.net (2.16.130.65)2026100801
a24-65.akam.net (2600:1480:9800::41)2026100801
a24-67.akam.net (2.16.130.67)2026100801
a24-67.akam.net (2600:1480:9800::43)2026100801
a3-66.akam.net (96.7.49.66)2026100801
a3-66.akam.net (2600:1408:1c::42)2026100801
a9-67.akam.net (184.85.248.67)2026100801
a9-67.akam.net (2a02:26f0:117::43)2026100801

Checks

  • ✓ Serial 2026100801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 1h, expire 14d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-198.akam.net is one of the listed nameservers.
  • ✓ Contact hostmaster@oracle.com #25
    The SOA RNAME hostmaster.oracle.com means hostmaster@oracle.com.
  • ✓ Date-based serial #26
    The serial 2026100801 follows the YYYYMMDDnn convention (2026-10-08).

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

13 records at the apex

Found

Read from
193.108.91.198:53
TypeValueTTL
SOAa1-198.akam.net. hostmaster.oracle.com. 2026100801 21600 3600 1209600 900900
NSa24-67.akam.net.900
NSa9-67.akam.net.900
NSa2-67.akam.net.900
NSa22-64.akam.net.900
NSa24-65.akam.net.900
NSa3-66.akam.net.900
NSa11-64.akam.net.900
NSa20-65.akam.net.900
NSa13-65.akam.net.900
NSa1-198.akam.net.900
A138.1.33.162300
TXT"v=spf1 a -all"900

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, NS 15m. The NS TTL at the parent is 2d and in the zone 15m; 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