strategyzer.com

Checked 22 October 2026, 10:52 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · Go France Domains, LLC · expires 2027-05-01

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Go France Domains, LLC
Registered
1 May 2011
Last changed
2 May 2026
Expires
1 May 2027
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com, ns5.dnsmadeeasy.com, ns6.dnsmadeeasy.com, ns7.dnsmadeeasy.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 2027-05-01 #3
    The registration is valid until 2027-05-01 (191 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client renew 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

ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com, ns5.dnsmadeeasy.com, ns6.dnsmadeeasy.com, ns7.dnsmadeeasy.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com, ns5.dnsmadeeasy.com, ns6.dnsmadeeasy.com, ns7.dnsmadeeasy.com
NS in the zone
ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com, ns5.dnsmadeeasy.com, ns6.dnsmadeeasy.com, ns7.dnsmadeeasy.com
NameserverAddressesNetwork (AS)Glue
ns1.dnsimple.com199.247.152.53 2620:111:8004::53AS32771 DNSIMPLE - DNSimple Corporation, US AS32771 DNSIMPLE - DNSimple Corporation, US199.247.152.53 2620:111:8004::53
ns2.dnsimple.com199.247.153.53 2620:111:8005::53AS32771 DNSIMPLE - DNSimple Corporation, US AS32771 DNSIMPLE - DNSimple Corporation, US199.247.153.53 2620:111:8005::53
ns3.dnsimple.com199.247.154.53 2620:111:8006::53AS32771 DNSIMPLE - DNSimple Corporation, US AS32771 DNSIMPLE - DNSimple Corporation, US199.247.154.53 2620:111:8006::53
ns4.dnsimple.com199.247.155.53 2620:111:8007::53AS32771 DNSIMPLE - DNSimple Corporation, US AS32771 DNSIMPLE - DNSimple Corporation, US199.247.155.53 2620:111:8007::53
ns5.dnsmadeeasy.com208.94.148.13 2600:1800:5::1AS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US208.94.148.13 2600:1800:5::1
ns6.dnsmadeeasy.com208.80.124.13 2600:1801:6::1AS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US208.80.124.13 2600:1801:6::1
ns7.dnsmadeeasy.com208.80.126.13 2600:1802:7::1AS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US208.80.126.13 2600:1802:7::1

Checks

  • ✓ 7 nameservers #6
    Delegated to ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com, ns5.dnsmadeeasy.com, ns6.dnsmadeeasy.com, ns7.dnsmadeeasy.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 7 IPv4 /24s and 7 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS16552 (DIGICERT - Tiggee LLC, US): 6 addresses; AS32771 (DNSIMPLE - DNSimple Corporation, US): 8 addresses.
  • 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

14 of 14 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.dnsimple.com 199.247.152.53NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns1.dnsimple.com 2620:111:8004::53NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns2.dnsimple.com 199.247.153.53NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns2.dnsimple.com 2620:111:8005::53NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns3.dnsimple.com 199.247.154.53NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns3.dnsimple.com 2620:111:8006::53NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns4.dnsimple.com 199.247.155.53NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns4.dnsimple.com 2620:111:8007::53NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns5.dnsmadeeasy.com 208.94.148.13NOERROR, 4 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns5.dnsmadeeasy.com 2600:1800:5::1NOERROR, 4 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns6.dnsmadeeasy.com 208.80.124.13NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns6.dnsmadeeasy.com 2600:1801:6::1NOERROR, 4 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns7.dnsmadeeasy.com 208.80.126.13NOERROR, 4 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns7.dnsmadeeasy.com 2600:1802:7::1NOERROR, 4 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast

Checks

  • ✓ All respond #14
    All 14 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns5.dnsmadeeasy.com: "DNS Made Easy Anycast"; ns6.dnsmadeeasy.com: "DNS Made Easy Anycast"; ns7.dnsmadeeasy.com: "DNS Made Easy Anycast".
    #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

warn

serial 1436399118 · primary axfr.dnsimple.com

Found

Primary (MNAME)
axfr.dnsimple.com
Contact (RNAME)
admin.dnsimple.com
Serial
1436399118
Refresh / retry
86400 s / 10800 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1.dnsimple.com (199.247.152.53)1436399118
ns1.dnsimple.com (2620:111:8004::53)1436399118
ns2.dnsimple.com (199.247.153.53)1436399118
ns2.dnsimple.com (2620:111:8005::53)1436399118
ns3.dnsimple.com (199.247.154.53)1436399118
ns3.dnsimple.com (2620:111:8006::53)1436399118
ns4.dnsimple.com (199.247.155.53)1436399118
ns4.dnsimple.com (2620:111:8007::53)1436399118
ns5.dnsmadeeasy.com (208.94.148.13)1436399117
ns5.dnsmadeeasy.com (2600:1800:5::1)1436399117
ns6.dnsmadeeasy.com (208.80.124.13)1436399117
ns6.dnsmadeeasy.com (2600:1801:6::1)1436399117
ns7.dnsmadeeasy.com (208.80.126.13)1436399117
ns7.dnsmadeeasy.com (2600:1802:7::1)1436399117

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 1436399117 on ns5.dnsmadeeasy.com (208.94.148.13), ns5.dnsmadeeasy.com (2600:1800:5::1), ns6.dnsmadeeasy.com (208.80.124.13), ns6.dnsmadeeasy.com (2600:1801:6::1), ns7.dnsmadeeasy.com (208.80.126.13), ns7.dnsmadeeasy.com (2600:1802:7::1); 1436399118 on ns1.dnsimple.com (199.247.152.53), ns1.dnsimple.com (2620:111:8004::53), ns2.dnsimple.com (199.247.153.53), ns2.dnsimple.com (2620:111:8005::53), ns3.dnsimple.com (199.247.154.53), ns3.dnsimple.com (2620:111:8006::53), ns4.dnsimple.com (199.247.155.53), ns4.dnsimple.com (2620:111:8007::53). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 3h, expire 7d, negative TTL 5m.
  • i
    Hidden master
    The primary nameserver axfr.dnsimple.com is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact admin@dnsimple.com #25
    The SOA RNAME admin.dnsimple.com means admin@dnsimple.com.
  • ✓ Timestamp serial #26
    The serial 1436399118 is a Unix timestamp (2015-07-08 23:45 UTC).

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

22 records at the apex

Found

Read from
199.247.152.53:53
TypeValueTTL
SOAaxfr.dnsimple.com. admin.dnsimple.com. 1436399118 86400 10800 604800 3003600
NSns1.dnsimple.com.3600
NSns2.dnsimple.com.3600
NSns3.dnsimple.com.3600
NSns4.dnsimple.com.3600
NSns5.dnsmadeeasy.com.3600
NSns6.dnsmadeeasy.com.3600
NSns7.dnsmadeeasy.com.3600
A198.202.211.13600
AAAA2620:cb:2000::13600
MX1 aspmx.l.google.com.86400
MX5 alt1.aspmx.l.google.com.86400
MX5 alt2.aspmx.l.google.com.86400
MX10 alt3.aspmx.l.google.com.86400
MX10 alt4.aspmx.l.google.com.86400
TXT"google-site-verification=qJR_YbqpzDI2XS3urrqqKYLaT1DIq8shc4BjJIOJZnM"60
TXT"apple-domain-verification=Dx3jCBoCDIarZPGe"3600
TXT"cisco-ci-domain-verification=603511a00cc9f7933ff2172229f63efc2e95b51652bc49f096576ffea04837e1"3600
TXT"google-site-verification=H4_yHu_cVWGn_zs1BclTiMWWF235GX-ZnHCwJc8ZzK4"3600
TXT"google-site-verification=fR2lozeXKVkgYhrWwAm8JH7fYzgoVOJfP9oJ0iXLmF4"3600
TXT"google-site-verification=u8x2ZnBsTeBTzyHHdHL8F_fRJVDB5KErZvPFpfUem40"3600
TXT"v=spf1 mx include:4952096.spf05.hubspotemail.net include:_spf.google.com include:smtp1.uservoice.com include:spf.recurly.com include:mailgun.org -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 1h, MX 1d, NS 1h. The NS TTL at the parent is 2d and in the zone 1h; 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