vgchartz.com

Checked 22 October 2026, 11:21 UTC · via 8.8.8.8
✗Problems found
19 passed 6 warnings 1 failed 5 info

Registration

info

.com generic · 123-Reg Limited · expires 2028-01-29

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
123-Reg Limited
Registered
29 January 2007
Last changed
30 January 2026
Expires
29 January 2028
Status
active
Registry nameservers
ns1.michonline.net, ns3.vgchartz.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 2028-01-29 #3
    The registration is valid until 2028-01-29 (463 days).
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

ns1.michonline.net, ns3.vgchartz.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.michonline.net, ns3.vgchartz.com
NS in the zone
ns1.michonline.net, ns3.vgchartz.com, ns4.vgchartz.com
NameserverAddressesNetwork (AS)Glue
ns1.michonline.net69.41.0.4AS21527 DAYSTARR-NET - Daystarr Communications, US-
ns3.vgchartz.com64.251.19.12AS15083 INFOLINK-MIA-US - Infolink Global Corporation, US64.251.19.12
ns4.vgchartz.com (zone only)64.251.19.50AS15083 INFOLINK-MIA-US - Infolink Global Corporation, US-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.michonline.net, ns3.vgchartz.com.
    #6
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only in the zone: ns4.vgchartz.com. ns1.michonline.net, ns3.vgchartz.com, ns4.vgchartz.com report NS ns1.michonline.net ns3.vgchartz.com ns4.vgchartz.com.
    #7
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns3.vgchartz.com.
  • ✓ 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 2 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS15083 (INFOLINK-MIA-US - Infolink Global Corporation, US): 2 addresses; AS21527 (DAYSTARR-NET - Daystarr Communications, US): 1 address.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .net.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

fail

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.michonline.net 69.41.0.4NOERROR, 109 ms, authoritativenoyes / yesrefusedBIND
ns3.vgchartz.com 64.251.19.12NOERROR, 123 ms, authoritativenoyes / yesrefused9.3.6-P1-RedHat-9.3.6-25.P1.el5_11.3
ns4.vgchartz.com 64.251.19.50NOERROR, 124 ms, authoritativenoyes / yesALLOWED (39 records)9.3.6-P1-RedHat-9.3.6-25.P1.el5_11.12

Checks

  • ✓ All respond #14
    All 3 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: ns3.vgchartz.com: "9.3.6-P1-RedHat-9.3.6-25.P1.el5_11.3"; ns4.vgchartz.com: "9.3.6-P1-RedHat-9.3.6-25.P1.el5_11.12". Hide or replace the version string.
    #17
  • ✗
    Zone transfer allowed
    These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: ns4.vgchartz.com (64.251.19.50): 39 records. Restrict zone transfers to your secondary servers.
    #18
  • ✓ 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 2025110101 · primary ns3.vgchartz.com

Found

Primary (MNAME)
ns3.vgchartz.com
Contact (RNAME)
jlauro.umich.edu
Serial
2025110101
Refresh / retry
300 s / 300 s
Expire
2419200 s
Negative TTL
60 s

Serial per nameserver

NameserverSerial
ns1.michonline.net (69.41.0.4)2025110101
ns3.vgchartz.com (64.251.19.12)2025110101
ns4.vgchartz.com (64.251.19.50)2025110101

Checks

  • ✓ Serial 2025110101 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 5m is outside 20m–1d; retry 5m should be shorter than refresh 5m; negative caching TTL (minimum) 1m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 5m, retry 5m, expire 28d, negative TTL 1m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns3.vgchartz.com is one of the listed nameservers.
  • ✓ Contact jlauro@umich.edu #25
    The SOA RNAME jlauro.umich.edu means jlauro@umich.edu.
  • ✓ Date-based serial #26
    The serial 2025110101 follows the YYYYMMDDnn convention (2025-11-01).

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

7 records at the apex

Found

Read from
69.41.0.4:53
TypeValueTTL
SOAns3.vgchartz.com. jlauro.umich.edu. 2025110101 300 300 2419200 6060
NSns3.vgchartz.com.60
NSns4.vgchartz.com.60
NSns1.michonline.net.60
A69.41.13.6260
MX4 mail.vgchartz.com.60
TXT"v=spf1 v=spf1 a mx ip4:69.41.13.48/28 ip4:69.41.6.31 ip4:65.111.186.253 ip4:64.251.19.50 include:hereandabove.com ~all"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m), NS (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1m; resolvers may use either.
    #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