nylas.com

Checked 22 October 2026, 10:04 UTC · via 8.8.8.8
iAll checks passed
31 passed 0 warnings 0 failed 4 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2028-11-07

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
7 November 2001
Last changed
6 October 2026
Expires
7 November 2028
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-1295.awsdns-33.org, ns-1921.awsdns-48.co.uk, ns-677.awsdns-20.net, ns-95.awsdns-11.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 2028-11-07 #3
    The registration is valid until 2028-11-07 (747 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-1295.awsdns-33.org, ns-1921.awsdns-48.co.uk, ns-677.awsdns-20.net, ns-95.awsdns-11.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1295.awsdns-33.org, ns-1921.awsdns-48.co.uk, ns-677.awsdns-20.net, ns-95.awsdns-11.com
NS in the zone
ns-1295.awsdns-33.org, ns-1921.awsdns-48.co.uk, ns-677.awsdns-20.net, ns-95.awsdns-11.com
NameserverAddressesNetwork (AS)Glue
ns-1295.awsdns-33.org205.251.197.15 2600:9000:5305:f00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1921.awsdns-48.co.uk205.251.199.129 2600:9000:5307:8100::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-677.awsdns-20.net205.251.194.165 2600:9000:5302:a500::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-95.awsdns-11.com205.251.192.95 2600:9000:5300:5f00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.95 2600:9000:5300:5f00::1

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1295.awsdns-33.org, ns-1921.awsdns-48.co.uk, ns-677.awsdns-20.net, ns-95.awsdns-11.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-1295.awsdns-33.org 205.251.197.15NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1295.awsdns-33.org 2600:9000:5305:f00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1921.awsdns-48.co.uk 205.251.199.129NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1921.awsdns-48.co.uk 2600:9000:5307:8100::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-677.awsdns-20.net 205.251.194.165NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-677.awsdns-20.net 2600:9000:5302:a500::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-95.awsdns-11.com 205.251.192.95NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-95.awsdns-11.com 2600:9000:5300:5f00::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-677.awsdns-20.net

Found

Primary (MNAME)
ns-677.awsdns-20.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-1295.awsdns-33.org (205.251.197.15)1
ns-1295.awsdns-33.org (2600:9000:5305:f00::1)1
ns-1921.awsdns-48.co.uk (205.251.199.129)1
ns-1921.awsdns-48.co.uk (2600:9000:5307:8100::1)1
ns-677.awsdns-20.net (205.251.194.165)1
ns-677.awsdns-20.net (2600:9000:5302:a500::1)1
ns-95.awsdns-11.com (205.251.192.95)1
ns-95.awsdns-11.com (2600:9000:5300:5f00::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-677.awsdns-20.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

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
22 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
44738ECDSAP256SHA256 (13)SHA256 3B6492C2583BCE00…yes

DNSKEY in the zone

Key tagRoleAlgorithm
26589ZSK (256)ECDSAP256SHA256 (13)
11185ZSK (256)ECDSAP256SHA256 (13)
44738KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 44738 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 2h0m0s and created on demand; the current one was made at 2026-10-22 09:04 UTC and expires at 2026-10-22 11:19 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

info

41 records at the apex

Found

Read from
205.251.197.15:53
TypeValueTTL
SOAns-677.awsdns-20.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1295.awsdns-33.org.172800
NSns-1921.awsdns-48.co.uk.172800
NSns-677.awsdns-20.net.172800
NSns-95.awsdns-11.com.172800
A151.101.3.52300
MX1 aspmx.l.google.com.300
MX10 alt3.aspmx.l.google.com.300
MX10 alt4.aspmx.l.google.com.300
MX5 alt1.aspmx.l.google.com.300
MX5 alt2.aspmx.l.google.com.300
TXT"1password-site-verification=U3HMUWX6WJD7NE42AGMI5546LM"60
TXT"MS=ms47611154"60
TXT"anthropic-domain-verification-ncj7qg=PHs510MBKXVsiJGdnLrCiZCx2"60
TXT"apple-domain-verification=9R4CSLXW0z7L1N6U"60
TXT"atlassian-domain-verification=mObbkllDfbiOC1EBZeg9aPb6zuMxkbeUQiPbaKHFMe2KO/5FffvPSZ6ntShLNSFq"60
TXT"atlassian-sending-domain-verification=c08f4000-4688-4307-913b-0577bdc63dfe"60
TXT"bqycGLaYeBZQqGg-KqclO7JPlUgy9XU"60
TXT"ca3-7e5694a9d31b4954bf095be6a298030f"60
TXT"ca3-bca96c1527f646c0ad1c8c8dd944d68e"60
TXT"ca3-e1d41198d42e4a85b0d986f1a5048363"60
TXT"cursor-domain-verification-7pyz52=jfDuKKyhftfOtH9BNy0x0WCrL"60
TXT"docusign=95da201e-5b58-484e-922f-490c287d6909"60
TXT"google-site-verification=1ztYbrlDJGYuEk5XKhnzBU8P0mgN3Tn3YYyH4RXmUrI"60
TXT"google-site-verification=AWe4DITkHSEXyru3rHJQ463zy87aFehAhboJ2tWRTV0"60
TXT"google-site-verification=YbKFTXliCv2rh_IF61KTNs8eJcPsUerjtruo8oReLbU"60
TXT"google-site-verification=lMPycALACYXDsOhcmLhNMsx5SUxNJFe-mqftB4qQFVw"60
TXT"google-site-verification=qvQUGHDROQA6m1U-3D4K9bIuHvorfwitR4XQP79Xp0s"60
TXT"h1-domain-verification=xK3JboaECspBdH2U9VxuTnGjLAzBkGbLbHRcbTmYgepGr3QB"60
TXT"keybase-site-verification=4Jm9Y9rcl8d2Dcq3h9L5GyrNwxepn1Y_y9gLeGtk9qs"60
TXT"notion_verify_9a+hg48q].oPhMqUF*,gb2%d6EHz,~.D_FpBGEy=+y!eR)bK7Jsp8HAxkrY4iJs.6PnRz,"60
TXT"openai-domain-verification=dv-c9VaEXLISzYk7nsh48ir6d0f"60
TXT"pandadoc-domain-verification=ynrQhDbpBvedc7RiDiL9Jd"60
TXT"postman-domain-verification=e2b468c1da0b62f8dbf4afc318cd1871ac527a86be94d162adf535f77d11ef5f041da90f49757a4fa0e775b43c5e323c1dace6dd837f7d5eb4edcc76271c22e1"60
TXT"slack-domain-verification=TyP2OpU2hTV6NSD7JOogVmuy5QJQztXGXK1W7C9o"60
TXT"status-page-domain-verification=g705lmkgxg8v"60
TXT"twilio-domain-verification=9aabedb8fefb504d277954904b0a6d3d"60
TXT"v=spf1 include:stspg-customer.com include:_spf.google.com include:mail.zendesk.com include:45023718.spf08.hubspotemail.net ~all"60
TXT"xJ9JSKvSLu4ljM35LgjWzOt+RHtSQkzD6dCAhNAk1W4="60
TXT"zoom-domain-verification=ZOOM_verify_f877dd67b6b341aa95d737611e9c778e"60
TXT"zoom-domain-verification=d19c4b48-7dd5-43a0-a913-619d0cdadcf6"60

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 2d.
  • ✓ 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