skillshare.com

Checked 22 October 2026, 10:43 UTC · via 8.8.8.8
!Passed with warnings
22 passed 3 warnings 0 failed 6 info

Registration

info

.com generic · Squarespace Domains II LLC · expires 2028-07-25

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Squarespace Domains II LLC
Registered
25 July 2003
Last changed
18 June 2024
Expires
25 July 2028
Status
client delete prohibited, client transfer prohibited
Registry nameservers
ashe.skillshare.com, garen.skillshare.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 2028-07-25 #3
    The registration is valid until 2028-07-25 (642 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

ashe.skillshare.com, garen.skillshare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ashe.skillshare.com, garen.skillshare.com
NS in the zone
ashe.skillshare.com, garen.skillshare.com
NameserverAddressesNetwork (AS)Glue
ashe.skillshare.com173.245.58.42 2400:cb00:2049:1::adf5:3a2aAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US173.245.58.42
garen.skillshare.com173.245.59.36 2400:cb00:2049:1::adf5:3b24AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US173.245.59.36

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ashe.skillshare.com, garen.skillshare.com.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ashe.skillshare.com (glue 173.245.58.42, zone 173.245.58.42, 2400:cb00:2049:1::adf5:3a2a); garen.skillshare.com (glue 173.245.59.36, zone 173.245.59.36, 2400:cb00:2049:1::adf5:3b24). Update the glue at your registrar.
    #8
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • i
    One address family in one network
    all IPv6 addresses are in 2400:cb00:2049::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ashe.skillshare.com 173.245.58.42NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ashe.skillshare.com 2400:cb00:2049:1::adf5:3a2aNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
garen.skillshare.com 173.245.59.36NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
garen.skillshare.com 2400:cb00:2049:1::adf5:3b24NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ashe.skillshare.com: "2026.10.2"; garen.skillshare.com: "2026.10.2". Hide or replace the version string.
    #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

pass

serial 2417926027 · primary ashe.skillshare.com

Found

Primary (MNAME)
ashe.skillshare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417926027
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
ashe.skillshare.com (173.245.58.42)2417926027
ashe.skillshare.com (2400:cb00:2049:1::adf5:3a2a)2417926027
garen.skillshare.com (173.245.59.36)2417926027
garen.skillshare.com (2400:cb00:2049:1::adf5:3b24)2417926027

Checks

  • ✓ Serial 2417926027 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ashe.skillshare.com is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2417926027 is a Unix timestamp (2046-08-15 06:07 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

31 records at the apex

Found

Read from
173.245.58.42:53
TypeValueTTL
SOAashe.skillshare.com. dns.cloudflare.com. 2417926027 10000 2400 604800 18001800
NSashe.skillshare.com.86400
NSgaren.skillshare.com.86400
A104.18.32.122300
A172.64.155.134300
AAAA2606:4700:440b::ac40:9b86300
AAAA2a06:98c1:310c::6812:207a300
MX10 aspmx.l.google.com.300
MX20 alt1.aspmx.l.google.com.300
MX30 alt2.aspmx.l.google.com.300
MX40 aspmx2.googlemail.com.300
MX50 aspmx3.googlemail.com.300
MX50 aspmx4.googlemail.com.300
MX50 aspmx5.googlemail.com.300
TXT"9p1q7gjsjf6jgqmkdvbdxhxch33lxzsv"300
TXT"amazonses:FA3mpwGhZzBmEIrp3iQXIXa3+umrH8ce03vBPry8tuI="300
TXT"anthropic-domain-verification-0j2hh2=VDsV2bFDu3c0IZWFsXlG1WQ4h"300
TXT"apple-domain-verification=Hb38JzhNUvqf3hR2"300
TXT"atlassian-domain-verification=caa1SXVOa/jn5JVpUdP/OCpP1t9l1rz9ikhEsdPLJYGgYWquY6v2tDOvBhNoJG99"300
TXT"facebook-domain-verification=va9wk46fanagqpr4rc6sp4d3gap007"300
TXT"firebase=skillshare-creator-dev"300
TXT"fw8mkvj2p2lgsk7crsrgylmvpzf0fkkw"300
TXT"google-site-verification=DshzQEv8w03dqk3NErt1hlkBaXsKdTMaUfBY1J-8Wic"300
TXT"google-site-verification=mcHpWbpzXVe4BOFgp5ijuXXqIf7OMoH1Z7ctm2mlBDc"300
TXT"h1-domain-verification=J1qQPbBWpbBxGVL3i3h1dpw2rX1NwHEZhnWeRNNP5L9qB2DX"300
TXT"jamf-site-verification=jsRO5e76-EWTHTbtESgo9g"300
TXT"miro-verification=2accb01b1b638f37ee0cd64452e2faaa57e1cdf6"300
TXT"mixpanel-domain-verify=739bd2fb-b682-4acf-9689-e94b74a61621"300
TXT"openai-domain-verification=dv-98OuGQNGSB3R75FCYqMmzHqw"300
TXT"qyylpgj14chmtmds8wgz7j8lqwrd44tt"300
TXT"v=spf1 include:_spf0.skillshare.com include:_spf1.skillshare.com include:_spf2.skillshare.com include:_spf3.skillshare.com include:sendgrid.net include:_spf.google.com include:sendgrid.net include:_spf.google.com ip4:23.21.109.197 ip4:23.21.109.212 ~all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 5m, 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.
  • ✓ 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