site-ym.com

Checked 22 October 2026, 10:43 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2026-12-22

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
22 December 2009
Last changed
20 November 2025
Expires
22 December 2026
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns1.ymaws.com, ns2.ymaws.com, ns3.ymaws.com, ns4.ymaws.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 2026-12-22 #3
    The registration is valid until 2026-12-22 (61 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

warn

ns1.ymaws.com, ns2.ymaws.com, ns3.ymaws.com, ns4.ymaws.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.ymaws.com, ns2.ymaws.com, ns3.ymaws.com, ns4.ymaws.com
NS in the zone
ns1.ymaws.com, ns2.ymaws.com, ns3.ymaws.com, ns4.ymaws.com
NameserverAddressesNetwork (AS)Glue
ns1.ymaws.com205.251.192.93AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.93
ns2.ymaws.com205.251.195.209AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.195.209
ns3.ymaws.com205.251.196.15AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.196.15
ns4.ymaws.com205.251.199.240AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.199.240

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.ymaws.com, ns2.ymaws.com, ns3.ymaws.com, ns4.ymaws.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 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 4 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 .com
    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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.ymaws.com 205.251.192.93NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns2.ymaws.com 205.251.195.209NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns3.ymaws.com 205.251.196.15NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns4.ymaws.com 205.251.199.240NOERROR, 9 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 4 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 201903181 · primary ns1.ymaws.com

Found

Primary (MNAME)
ns1.ymaws.com
Contact (RNAME)
hostmaster.yourmembership.com
Serial
201903181
Refresh / retry
3600 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.ymaws.com (205.251.192.93)201903181
ns2.ymaws.com (205.251.195.209)201903181
ns3.ymaws.com (205.251.196.15)201903181
ns4.ymaws.com (205.251.199.240)201903181

Checks

  • ✓ Serial 201903181 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.ymaws.com is one of the listed nameservers.
  • ✓ Contact hostmaster@yourmembership.com #25
    The SOA RNAME hostmaster.yourmembership.com means hostmaster@yourmembership.com.
  • ✓ Counter serial #26
    The serial 201903181 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

info

10 records at the apex

Found

Read from
205.251.192.93:53
TypeValueTTL
SOAns1.ymaws.com. hostmaster.yourmembership.com. 201903181 3600 900 1209600 864003600
NSns1.ymaws.com.86400
NSns2.ymaws.com.86400
NSns3.ymaws.com.86400
NSns4.ymaws.com.86400
MX10 inbound-smtp.us-east-1.amazonaws.com.1800
TXT"b2srjpo87boph63giev4orqpp8"60
TXT"google-site-verification=4bve68g34fQ4KUd9a462JSAkrgnxXHashiIcR0Fbg1w"60
TXT"rg9tm4cr2oo0agqcp7dd4hq2es"60
TXT"rv3pdf56est0i1k0g8hppk7g6l"60

Checks

  • ✓ TTLs within range #32
    TTLs: MX 30m, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
  • ✓ 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