sg-host.com

Checked 22 October 2026, 10:41 UTC · via 8.8.8.8
!Passed with warnings
22 passed 3 warnings 0 failed 6 info

Registration

info

.com generic · Tucows Domains Inc. · expires 2027-07-19

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Tucows Domains Inc.
Registered
19 July 2016
Last changed
20 June 2026
Expires
19 July 2027
Status
client transfer prohibited, client update prohibited
Registry nameservers
ns1.siteground.net, ns2.siteground.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 2027-07-19 #3
    The registration is valid until 2027-07-19 (269 days).
  • ✓ Transfer locked #4
    Registry status: 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.siteground.net, ns2.siteground.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.siteground.net, ns2.siteground.net
NS in the zone
ns1.siteground.net, ns2.siteground.net
NameserverAddressesNetwork (AS)Glue
ns1.siteground.net75.2.77.104AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns2.siteground.net99.83.229.113AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.siteground.net, ns2.siteground.net.
    #6
  • ✓ 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 2 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): 2 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 .net
    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

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.siteground.net 75.2.77.104NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns2.siteground.net 99.83.229.113NOERROR, 4 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 2 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

warn

serial 467813 · primary ns1.siteground.net.sg-host.com

Found

Primary (MNAME)
ns1.siteground.net.sg-host.com
Contact (RNAME)
sysadmin.siteground.com
Serial
467813
Refresh / retry
3600 s / 7200 s
Expire
86400 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.siteground.net (75.2.77.104)467813
ns2.siteground.net (99.83.229.113)467813

Checks

  • ✓ Serial 467813 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 2h should be shorter than refresh 1h; expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 1h, retry 2h, expire 1d, negative TTL 1h.
    #23
  • i
    Hidden master (not resolvable)
    The primary nameserver ns1.siteground.net.sg-host.com is not listed as a nameserver and does not resolve publicly: a hidden master, or a placeholder name. Some tools (e.g. dynamic updates) use MNAME to find the primary.
    #24
  • ✓ Contact sysadmin@siteground.com #25
    The SOA RNAME sysadmin.siteground.com means sysadmin@siteground.com.
  • ✓ Counter serial #26
    The serial 467813 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
75.2.77.104:53
TypeValueTTL
SOAns1.siteground.net.sg-host.com. sysadmin.siteground.com. 467813 3600 7200 86400 360014400
NSns2.siteground.net.14400
NSns1.siteground.net.14400
A34.149.235.24414400
MX0 sg-host.com.14400
TXT"_globalsign-domain-verification=Vdox746RYlIVqpi10zkcfbHRFO9Fquyp37v36t8wQI"86400
TXT"_globalsign-domain-verification=uf7Nnbb4ArBJOkMibtTgboPu-ALwiRCwmQ1Zx878w2"86400
TXT"_globalsign-domain-verification=i_7sa03-LldNs_yJegc6PVeJmumgzRHoP4h--eNuCb"86400
TXT"_globalsign-domain-verification=EiBhIj7P5xZwWm2muNVb986ZD1hq7YO5UTtnZduU1M"86400
TXT"_globalsign-domain-verification=zDqBtUjfT0kHDeybguDQ_-xi6zly474L5NZBwm0Fg4"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 4h, MX 4h, NS 4h. The NS TTL at the parent is 2d and in the zone 4h; 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