modernatx.com

Checked 22 October 2026, 09:52 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-09-07

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
7 September 2010
Last changed
26 September 2022
Expires
7 September 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-1121.awsdns-12.org, ns-1766.awsdns-28.co.uk, ns-355.awsdns-44.com, ns-877.awsdns-45.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 2027-09-07 #3
    The registration is valid until 2027-09-07 (320 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns-1121.awsdns-12.org, ns-1766.awsdns-28.co.uk, ns-355.awsdns-44.com, ns-877.awsdns-45.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1121.awsdns-12.org, ns-1766.awsdns-28.co.uk, ns-355.awsdns-44.com, ns-877.awsdns-45.net
NS in the zone
ns-1121.awsdns-12.org, ns-1766.awsdns-28.co.uk, ns-355.awsdns-44.com, ns-877.awsdns-45.net
NameserverAddressesNetwork (AS)Glue
ns-1121.awsdns-12.org205.251.196.97 2600:9000:5304:6100::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1766.awsdns-28.co.uk205.251.198.230 2600:9000:5306:e600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-355.awsdns-44.com205.251.193.99 2600:9000:5301:6300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.99 2600:9000:5301:6300::1
ns-877.awsdns-45.net205.251.195.109 2600:9000:5303:6d00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1121.awsdns-12.org, ns-1766.awsdns-28.co.uk, ns-355.awsdns-44.com, ns-877.awsdns-45.net.
  • ✓ 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-1121.awsdns-12.org 205.251.196.97NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1121.awsdns-12.org 2600:9000:5304:6100::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1766.awsdns-28.co.uk 205.251.198.230NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1766.awsdns-28.co.uk 2600:9000:5306:e600::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-355.awsdns-44.com 205.251.193.99NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-355.awsdns-44.com 2600:9000:5301:6300::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-877.awsdns-45.net 205.251.195.109NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-877.awsdns-45.net 2600:9000:5303:6d00::1NOERROR, 5 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-877.awsdns-45.net

Found

Primary (MNAME)
ns-877.awsdns-45.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-1121.awsdns-12.org (205.251.196.97)1
ns-1121.awsdns-12.org (2600:9000:5304:6100::1)1
ns-1766.awsdns-28.co.uk (205.251.198.230)1
ns-1766.awsdns-28.co.uk (2600:9000:5306:e600::1)1
ns-355.awsdns-44.com (205.251.193.99)1
ns-355.awsdns-44.com (2600:9000:5301:6300::1)1
ns-877.awsdns-45.net (205.251.195.109)1
ns-877.awsdns-45.net (2600:9000:5303:6d00::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-877.awsdns-45.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

49 records at the apex

Found

Read from
205.251.196.97:53
TypeValueTTL
SOAns-877.awsdns-45.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1121.awsdns-12.org.172800
NSns-1766.awsdns-28.co.uk.172800
NSns-355.awsdns-44.com.172800
NSns-877.awsdns-45.net.172800
A18.64.211.3260
A18.64.211.4660
A18.64.211.4760
A18.64.211.3560
MX0 modernatx-com.mail.protection.outlook.com.300
TXT"LTg5MzAyNzg4NTYzMTA5ODU5OTY="300
TXT"MS=ms46825671"300
TXT"ModernaDevKey._domainkey.modernatx.com IN CNAME ModernaDevKey.25gjyh.custdkim.salesforce.com."300
TXT"ZOOM_verify_P5mQIxA1y5Q1qNqMY0zQTY"300
TXT"_d0p3d08decnmhe37khb43rnyajl98cd"300
TXT"_qnudlwyay0nf0ngh2lov48vlntbb523"300
TXT"adobe-idp-site-verification=dda7edc635ff3135a701cf17ed4abaf29ba486eba3e0ac1a3042b2f4fb09d2df"300
TXT"amazonses:MLKAGGsizGu8CI/fqK97sbIB9Nejk84ZO31YrzCt6o4="300
TXT"anthropic-domain-verification-112h2a=k1vBV3kl31HfvAoBpFauth14l"300
TXT"apple-domain-verification=Y5Ozjuyrymh5AjCo"300
TXT"atlassian-domain-verification=HcWfw66ZCRPIC78Iyotw582IDr0HZ3hJulyLB6Dj6gWoijwsgV7NEBhTYpxnOvjt"300
TXT"atlassian-sending-domain-verification=6c82130f-0553-4748-b8c4-ad937a4920c1"300
TXT"autodesk-domain-verification=SOEHoBoUBq81fhiekr-j"300
TXT"canva-site-verification=Jo2Q2jFJf6Pm97U1Gs3oOQ"300
TXT"cisco-ci-domain-verification=47a7810e208713737dfeb696d43bb2c2e72eac23ce21cbb78de1823732ad019e"300
TXT"cloudflare-verify.trials.modernatx.com=213781772-431469799"300
TXT"docusign1=81fe4d47-e5ab-4da0-94d7-322784ba22cc"300
TXT"docusign=352e8b33-ea23-4bed-9f7d-6c353b98c5b1"300
TXT"docusign=fc06bba7-7a73-4839-9a9c-9a0d349fa52e"300
TXT"facebook-domain-verification=hy804xsh80f7a6rnnxturlb5acj3il"300
TXT"google-site-verification=3wQ4xPoUoOY0qhq148sRUjpLiAdSyhC1jIcrsvcL35U"300
TXT"google-site-verification=FsPzf0GYdO91MsD3DKvtQ4VW11naJyDOOuguKo0--0Y"300
TXT"google-site-verification=Np9OLglofB_VqWDwtwdkaAL3PpaPIG4e2hnEBjrDIgA"300
TXT"google-site-verification=jv6bk2piWrk4Icj1oatp3xcKhavOu1f-uwO4nfFv_X0"300
TXT"include:_spf.psm.knowbe4.com ~all"300
TXT"jamf-site-verification=qj2BgOuamC6qG02-uOKZ7g"300
TXT"miro-verification=4e5193715f575d6c71eb883694c04f743f2e2f76"300
TXT"moderna._domainkey.modernatx.com IN CNAME moderna.lwm5bx.custdkim.salesforce.com."300
TXT"onetrust-domain-verification=7c025756453b444e91273d94c204648f'"300
TXT"onetrust-domain-verification=e432e0b2039b46b6b6c711cb17b57cd8"300
TXT"openai-domain-verification=dv-Crai33GJtJtWr5rPEagbn0oD"300
TXT"pendo-domain-verification=f90c7853-4fa6-43fa-92fe-bda8f8988a9b"300
TXT"smartsheet-site-validation.modernatx.com=3mF9SzaGpWnWosjDEvR0mYkztsMPGJAtp6Gsfa1iSCw"300
TXT"support:1682576:U2FsdGVkX18JznZcIjHu4D14GbxCPb4/2Vcb+5rOBg+VmQdZ0J+lhPkoYiVOTOjk"300
TXT"teamviewer-sso-verification=abf76dd894c34527aa935a6527d4b702"300
TXT"v11t8ml0fwzbsk0681cf67tt1z175bcw"300
TXT"v=spf1 ip4:162.44.167.165/32 ip4:162.44.167.226/32 ip4:162.44.167.227/32 ip4:162.44.167.164/32 ip4:185.76.231.152/32 ip4:185.76.231.153/32 ip4:185.76.231.154/32 ip4:52.2.71.29/32 ip4:52.45.151.218/32 ip4:52.5.92.136/32 ip4:50.16.12.255/32" " include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.mandrillapp.com include:amazonses.com ~all"300
TXT"www.geneious.com:domain-verification=pC4WechDAXK_biepTuLEAQ"300
TXT"xpmrd2qwnqh8pw01dmlknpydvb0c25m0"300

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.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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