phoenixcontact.com

Checked 22 October 2026, 10:13 UTC · via 8.8.8.8
!Passed with warnings
25 passed 4 warnings 0 failed 2 info

Registration

info

.com generic · InterNetX GmbH · expires 2027-02-21

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
InterNetX GmbH
Registered
20 February 1996
Last changed
22 February 2026
Expires
21 February 2027
Status
client transfer prohibited
Registry nameservers
a1-61.akam.net, a10-64.akam.net, a11-65.akam.net, a22-66.akam.net, a4-67.akam.net, a5-64.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 2027-02-21 #3
    The registration is valid until 2027-02-21 (121 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

warn

a1-61.akam.net, a10-64.akam.net, a11-65.akam.net, a22-66.akam.net, a4-67.akam.net, a5-64.akam.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
a1-61.akam.net, a10-64.akam.net, a11-65.akam.net, a22-66.akam.net, a4-67.akam.net, a5-64.akam.net
NS in the zone
a1-73.akam.net, a10-66.akam.net, a11-67.akam.net, a12-64.akam.net, a16-65.akam.net, a3-66.akam.net
NameserverAddressesNetwork (AS)Glue
a1-61.akam.net (parent only)193.108.91.61 2600:1401:2::3dAS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a1-73.akam.net (zone only)193.108.91.73 2600:1401:2::49AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a10-64.akam.net (parent only)96.7.50.64 2600:1480:d000::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a10-66.akam.net (zone only)96.7.50.66 2600:1480:d000::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a11-65.akam.net (parent only)84.53.139.65 2600:1480:1::41AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a11-67.akam.net (zone only)84.53.139.67 2600:1480:1::43AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a12-64.akam.net (zone only)184.26.160.64 2600:1480:f000::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a16-65.akam.net (zone only)23.211.132.65 2600:1406:1b::41AS21342 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-
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-
a4-67.akam.net (parent only)72.246.46.67 2600:1480:9000::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a5-64.akam.net (parent only)95.100.168.64 2600:1480:b000::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-61.akam.net, a10-64.akam.net, a11-65.akam.net, a22-66.akam.net, a4-67.akam.net, a5-64.akam.net.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: a1-61.akam.net, a10-64.akam.net, a11-65.akam.net, a22-66.akam.net, a4-67.akam.net, a5-64.akam.net; only in the zone: a1-73.akam.net, a10-66.akam.net, a11-67.akam.net, a12-64.akam.net, a16-65.akam.net, a3-66.akam.net. a1-61.akam.net, a1-73.akam.net, a10-64.akam.net, a10-66.akam.net, a11-65.akam.net, a11-67.akam.net, a12-64.akam.net, a16-65.akam.net, a22-66.akam.net, a3-66.akam.net, a4-67.akam.net, a5-64.akam.net report NS a1-73.akam.net a10-66.akam.net a11-67.akam.net a12-64.akam.net a16-65.akam.net a3-66.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.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 2 addresses; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 22 addresses.
  • 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
a1-61.akam.net 193.108.91.61NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9
a1-61.akam.net 2600:1401:2::3dNOERROR, 3 ms, authoritativenoyes / yesrefused41824.6
a1-73.akam.net 193.108.91.73NOERROR, 5 ms, authoritativenoyes / yesrefused41824.6
a1-73.akam.net 2600:1401:2::49NOERROR, 6 ms, authoritativenoyes / yesrefused41824.9
a10-64.akam.net 96.7.50.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33
a10-64.akam.net 2600:1480:d000::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.33
a10-66.akam.net 96.7.50.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33
a10-66.akam.net 2600:1480:d000::42NOERROR, 6 ms, authoritativenoyes / yesrefused48878.33
a11-65.akam.net 84.53.139.65NOERROR, 4 ms, authoritativenoyes / yesrefused41824.5
a11-65.akam.net 2600:1480:1::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.7
a11-67.akam.net 84.53.139.67NOERROR, 4 ms, authoritativenoyes / yesrefused41824.8
a11-67.akam.net 2600:1480:1::43NOERROR, 4 ms, authoritativenoyes / yesrefused41824.7
a12-64.akam.net 184.26.160.64NOERROR, 5 ms, authoritativenoyes / yesrefused48878.33
a12-64.akam.net 2600:1480:f000::40NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a16-65.akam.net 23.211.132.65NOERROR, 4 ms, authoritativenoyes / yesrefused48878.30
a16-65.akam.net 2600:1406:1b::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.31
a22-66.akam.net 23.211.61.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a22-66.akam.net 2600:1480:7800::42NOERROR, 5 ms, authoritativenoyes / yesrefused48878.29
a3-66.akam.net 96.7.49.66NOERROR, 3 ms, authoritativenoyes / yesrefused41824.4
a3-66.akam.net 2600:1408:1c::42NOERROR, 4 ms, authoritativenoyes / yesrefused41824.11
a4-67.akam.net 72.246.46.67NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a4-67.akam.net 2600:1480:9000::43NOERROR, 6 ms, authoritativenoyes / yesrefused48878.32
a5-64.akam.net 95.100.168.64NOERROR, 6 ms, authoritativenoyes / yesrefused41824.8
a5-64.akam.net 2600:1480:b000::40NOERROR, 5 ms, authoritativenoyes / yesrefused41824.4

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: a1-61.akam.net: "41824.9"; a1-61.akam.net: "41824.6"; a1-73.akam.net: "41824.6"; a1-73.akam.net: "41824.9"; a10-64.akam.net: "48878.33"; a10-66.akam.net: "48878.33"; a11-65.akam.net: "41824.5"; a11-65.akam.net: "41824.7"; a11-67.akam.net: "41824.8"; a11-67.akam.net: "41824.7"; a12-64.akam.net: "48878.33"; a12-64.akam.net: "48878.29"; a16-65.akam.net: "48878.30"; a16-65.akam.net: "48878.31"; a22-66.akam.net: "48878.29"; a3-66.akam.net: "41824.4"; a3-66.akam.net: "41824.11"; a4-67.akam.net: "48878.32"; a5-64.akam.net: "41824.8"; a5-64.akam.net: "41824.4". 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 2016112236 · primary a1-73.akam.net

Found

Primary (MNAME)
a1-73.akam.net
Contact (RNAME)
hostmaster.phoenixcontact.com
Serial
2016112236
Refresh / retry
10000 s / 1800 s
Expire
604800 s
Negative TTL
14400 s

Serial per nameserver

NameserverSerial
a1-61.akam.net (193.108.91.61)2016112236
a1-61.akam.net (2600:1401:2::3d)2016112236
a1-73.akam.net (193.108.91.73)2016112236
a1-73.akam.net (2600:1401:2::49)2016112236
a10-64.akam.net (96.7.50.64)2016112236
a10-64.akam.net (2600:1480:d000::40)2016112236
a10-66.akam.net (96.7.50.66)2016112236
a10-66.akam.net (2600:1480:d000::42)2016112236
a11-65.akam.net (84.53.139.65)2016112236
a11-65.akam.net (2600:1480:1::41)2016112236
a11-67.akam.net (84.53.139.67)2016112236
a11-67.akam.net (2600:1480:1::43)2016112236
a12-64.akam.net (184.26.160.64)2016112236
a12-64.akam.net (2600:1480:f000::40)2016112236
a16-65.akam.net (23.211.132.65)2016112236
a16-65.akam.net (2600:1406:1b::41)2016112236
a22-66.akam.net (23.211.61.66)2016112236
a22-66.akam.net (2600:1480:7800::42)2016112236
a3-66.akam.net (96.7.49.66)2016112236
a3-66.akam.net (2600:1408:1c::42)2016112236
a4-67.akam.net (72.246.46.67)2016112236
a4-67.akam.net (2600:1480:9000::43)2016112236
a5-64.akam.net (95.100.168.64)2016112236
a5-64.akam.net (2600:1480:b000::40)2016112236

Checks

  • ✓ Serial 2016112236 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 30m, expire 7d, negative TTL 4h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-73.akam.net is one of the listed nameservers.
  • ✓ Contact hostmaster@phoenixcontact.com #25
    The SOA RNAME hostmaster.phoenixcontact.com means hostmaster@phoenixcontact.com.
  • ✓ Date-based serial #26
    The serial 2016112236 follows the YYYYMMDDnn convention (2016-11-22).

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

73 records at the apex

Found

Read from
193.108.91.61:53
TypeValueTTL
SOAa1-73.akam.net. hostmaster.phoenixcontact.com. 2016112236 10000 1800 604800 1440014400
NSa3-66.akam.net.14400
NSa10-66.akam.net.14400
NSa12-64.akam.net.14400
NSa16-65.akam.net.14400
NSa1-73.akam.net.14400
NSa11-67.akam.net.14400
A2.16.204.3120
A2.16.204.2320
MX0 phoenixcontact-com.mail.protection.outlook.com.3600
TXT"mongodb-site-verification=cbqaweX9ZWUH3gssBFvv3uXqMc2O7ozx"120
TXT"QuoVadis=9aa6d8ab-70be-4038-9720-6ae0629d1ffc"120
TXT"docusign=c20875e2-5512-40b9-8479-b83220761042"120
TXT"sending_domain1053793=e2582b0f71357182098ad1760ab81d7a7a5df8d248d31a5090c1381a86a33adf"120
TXT"Dynatrace-site-verification=dee12bc5-bc55-4bd0-b917-af5048b5a9cc__62tnf636cn9eikd8m13ppprss"120
TXT"ZOOM_verify_j-DbYXX4SSKzeutbUv-2Yw"120
TXT"pardot357793=bbe59e8d3edbd91f640f746d8ff4b5b1c464af8f668b876642135cdf9b7ad615"120
TXT"pardot1053793=207b616d2615cd55ba71c1c3c3d52e9516a6f65bafedb978e661e80339c8515d"120
TXT"MS=88BF7EEB53CE65619B7F3F0150D4AC56C639DBEB"120
TXT"pardot963733=c4937e6d2e9908ecea7e6df1dae494403ce9623506696d14e35b846ba5b5a712"120
TXT"MS=ms28465262"120
TXT"pardot1055633=cf4e3c861b4c81c2b991c16cbcc03c7cb1da56ff6d03c64601baa1143efd5d02"120
TXT"google-gws-recovery-domain-verification=66896994"120
TXT"pardot1053803=0821f675f0be977f58d0ed9257415718493fc9cca6a3f3277336c8fe09d8601d"120
TXT"iqg3qdreaj60qiac0l30s7khu9"120
TXT"docusign=e01330e2-1cf0-426d-b8b6-60816e519169"120
TXT"pardot1055633=3c996a103ea353f05416b66d55a55407da5bfbd1ff94fb29f50bb78207f8eacb"120
TXT"v=spf1 ip4:62.157.123.119 ip4:155.56.208.100/30 ip4:157.133.97.216/30 ip4:169.145.66.70/31 ip4:169.145.66.72/31 ip4:109.75.185.63 ip4:109.75.185.66 include:spf.protection.outlook.com" " ip4:149.208.233.125 ip4:10.99.164.3 ip4:10.99.164.7 ip4:62.157.123.72 ip4:62.157.123.74 ip4:85.10.214.4" " ip4:198.207.147.224/27 ip4:204.239.0.224/27 ip4:216.230.14.224/27" " ip4:18.184.132.155 ip4:18.198.57.255 ip4:44.195.150.103 ip4:3.90.132.252 ip4:49.12.8.69 ip6:2a01:4f8:c17:390a::1 ip4:195.201.11.236" " include:spf.u2d.de" " include:amazonses.com include:_spf.senders.scnem.com include:mail.zendesk.com include:aspmx.pardot.com ip4:194.156.135.1 ip4:46.183.40.225 ip4:164.128.172.0/28 include:_spf.salesforce.com -all"120
TXT"pardot1053803=b4ea0af748f3386a1db28ddac5e5cc8fb1ad15a78fd7e3f3b53b3e2a22f8fbb6"120
TXT"successfactors-site-verification=OWMwYTg0NTBmYzQ4NDNlMjEyZWZmNmY5NDg1ZjVhNjk2YTg4ZmI0YjlkMGQ5MDEyNDE0ZmJlMjZmNzFiYmE4YQ=="120
TXT"pardot1017172=3cdbf352afdf90c1f20f533d6ae06d79764b5934f848d58eda6fb37157d6e2da"120
TXT"ahrefs-site-verification_455ee34c29f0d164e01c3fe6de2873b107ad06ca968d7edc5817c1efef77c541"120
TXT"webexdomainverification.4C675B8B585CB136E053AB06FC0A3F65=528f0cf1-39c5-47b1-a6dd-91282e53b4d0"120
TXT"google-site-verification=vbLjRSNqiWM0FjZk112RcCcn6U0G43RUmtWKl8svQX4"120
TXT"sending_domain963733=0117a5b97340a001013c218e53952aac7d54c5b5732851156efbf715cb28fd0d"120
TXT"apple-domain-verification=2coI3q8bbKqBHBaV"120
TXT"sending_domain1017172=4a61defa7277e6838f781e321a1e37e5f702a62c8ecd30fccf297c724d6cda62"120
TXT"_yr67xhh8xgdg6e6jj7kljt2h7rokdy4"120
TXT"sending_domain1055633=f187ae4ef3b30943fb2d426a1b2bf7169a82d29826c66901a8d67c6c8070cd58"120
TXT"pardot359143=3cf45926214fd3280f0af7299f975b7766cff53272b58fe38573311fe470ae54"120
TXT"00DbY00000HxS89=1TBbY00000014xd"120
TXT"pardot1017182=b7c0e753299e7e16b5e9045756c7674c472593f695835d6c99e478176eb3eba4"120
TXT"sending_domain1053803=058c98d64acb4c4f4bca9f6f5e226f1d573fb81cd60376429daea7cb72bb9627"120
TXT"pardot1042931=a25ba949f9345db703ddce4f6446736595fa9677707ecb82b7261159c11812ee"120
TXT"atlassian-domain-verification=PHWmXSYANT7AhB1vhNBmae7vx6vRA1JlEfpQ9V51uyLpQUsbav+BakAJwo+Epgfb"120
TXT"pardot963743=2cb7799506727e7888e7356095c05cab43c0715b3eb9a05812de15cce86754d3"120
TXT"D-TRUST=A84ETALY4MH5P7MDJZNGXM4"120
TXT"sending_domain567382=4eac0cd8ec5c39654ad1cdf6f0c82aa3acb137cf8852556e3fe6f545bb690627"120
TXT"sending_domain963743=f7a42414cb9bb84144eaa0a8d7920178297f2203df61326a1911a597562b1529"120
TXT"pardot963733=f16d4a01169845e818945afa51330647b791e8db46e73bc5e663b48a3b7d861f"120
TXT"google-site-verification=en1Jj3izom407KzmgRzLjH0MF12Fjkr9Gj2jpnxDlrM"120
TXT"pardot1042931=d8d0083c7dea1856619c3670ae02803fe486353549034da25e0249773801ab74"120
TXT"pardot963743=550d2ac7283b5d657e5197fab03ab8a1bf1cf6539376eb74f48ad5a0c6e4ba30"120
TXT"pardot963743=67bb6143740c08d53849c35d528a5796d0747b23f847e83cdc28ef82d69597d0"120
TXT"facebook-domain-verification=iexwoeisx1owubsnwgm3h41713zcev"120
TXT"pardot1017172=0d45cb021d217c08a9200c9b09580120713b77f31f3dc8afa98c5716249ccdc1"120
TXT"wiz-domain-verification=ad00874fba3ac91d028a94da7473f6947f3816d14c740ebc1b12507b1338ef37"120
TXT"figma-domain-verification=3595e6b468b9b317549e13e9a52da246061e88930ef362ee6ee5002e3606c01b-1753342679"120
TXT"pardot963733=9cb0006716be8c65c80a48d4dd801fbeb6e40a165865923b3dae6145be533ff7"120
TXT"flexera-domain-verification-nijvwaeocunasotz"120
TXT"yandex-verification: eabe5d0f36536b58"120
TXT"pardot963743=d578f917780c54ba7cd17a1928a1324f28a18c1e1660ca5b7c4bb4d7165bc672"120
CAA0 issue "amazon.com"1800
CAA0 issue "sectigo.com"1800
CAA0 issue "rapidssl.com"1800
CAA0 issue "digicert.com"1800
CAA0 issue "letsencrypt.org"1800
CAA0 iodef "mailto:servicedesk@phoenixcontact.com"1800
CAA0 issuewild "digicert.com"1800
CAA0 issue "thawte.com"1800
CAA0 issuewild "thawte.com"1800
CAA0 issue "godaddy.com"1800
CAA0 issue "geotrust.com"1800

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 4h; 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: amazon.com, sectigo.com, rapidssl.com, digicert.com, letsencrypt.org, thawte.com, godaddy.com, geotrust.com.