rs-online.com

Checked 22 October 2026, 10:32 UTC · via 8.8.8.8
✗Problems found
24 passed 3 warnings 1 failed 3 info

Registration

fail

.com generic · CSC Corporate Domains, Inc. · expires 2026-11-04

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
4 November 2001
Last changed
31 October 2025
Expires
4 November 2026
Status
client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
a1-40.akam.net, a11-67.akam.net, a16-64.akam.net, a20-65.akam.net, a24-66.akam.net, a9-67.akam.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 in 13 days
    The registration expires on 2026-11-04. Renew it now or enable auto-renewal.
    #3
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

a1-40.akam.net, a11-67.akam.net, a16-64.akam.net, a20-65.akam.net, a24-66.akam.net, a9-67.akam.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
a1-40.akam.net, a11-67.akam.net, a16-64.akam.net, a20-65.akam.net, a24-66.akam.net, a9-67.akam.net
NS in the zone
a1-40.akam.net, a11-67.akam.net, a16-64.akam.net, a20-65.akam.net, a24-66.akam.net, a9-67.akam.net
NameserverAddressesNetwork (AS)Glue
a1-40.akam.net193.108.91.40 2600:1401:2::28AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a11-67.akam.net84.53.139.67 2600:1480:1::43AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a16-64.akam.net23.211.132.64 2600:1406:1b::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a20-65.akam.net95.100.175.65 2a02:26f0:67::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a24-66.akam.net2.16.130.66 2600:1480:9800::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a9-67.akam.net184.85.248.67 2a02:26f0:117::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-40.akam.net, a11-67.akam.net, a16-64.akam.net, a20-65.akam.net, a24-66.akam.net, a9-67.akam.net.
  • ✓ 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 6 IPv4 /24s and 6 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 2 addresses; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 10 addresses.
  • 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-40.akam.net 193.108.91.40NOERROR, 3 ms, authoritativenoyes / yesrefused41824.10
a1-40.akam.net 2600:1401:2::28NOERROR, 4 ms, authoritativenoyes / yesrefused41824.11
a11-67.akam.net 84.53.139.67NOERROR, 4 ms, authoritativenoyes / yesrefused41824.6
a11-67.akam.net 2600:1480:1::43NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a16-64.akam.net 23.211.132.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33
a16-64.akam.net 2600:1406:1b::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a20-65.akam.net 95.100.175.65NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a20-65.akam.net 2a02:26f0:67::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.33
a24-66.akam.net 2.16.130.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.32
a24-66.akam.net 2600:1480:9800::42NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33
a9-67.akam.net 184.85.248.67NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a9-67.akam.net 2a02:26f0:117::43NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9

Checks

  • ✓ All respond #14
    All 12 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: a1-40.akam.net: "41824.10"; a1-40.akam.net: "41824.11"; a11-67.akam.net: "41824.6"; a11-67.akam.net: "41824.10"; a16-64.akam.net: "48878.33"; a16-64.akam.net: "48878.27"; a20-65.akam.net: "48878.29"; a20-65.akam.net: "48878.33"; a24-66.akam.net: "48878.32"; a24-66.akam.net: "48878.33"; a9-67.akam.net: "41824.8"; a9-67.akam.net: "41824.9". 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 2023071792 · primary a1-40.akam.net

Found

Primary (MNAME)
a1-40.akam.net
Contact (RNAME)
postmaster.electrocomponents.com
Serial
2023071792
Refresh / retry
3600 s / 1200 s
Expire
1728000 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
a1-40.akam.net (193.108.91.40)2023071792
a1-40.akam.net (2600:1401:2::28)2023071792
a11-67.akam.net (84.53.139.67)2023071792
a11-67.akam.net (2600:1480:1::43)2023071792
a16-64.akam.net (23.211.132.64)2023071792
a16-64.akam.net (2600:1406:1b::40)2023071792
a20-65.akam.net (95.100.175.65)2023071792
a20-65.akam.net (2a02:26f0:67::41)2023071792
a24-66.akam.net (2.16.130.66)2023071792
a24-66.akam.net (2600:1480:9800::42)2023071792
a9-67.akam.net (184.85.248.67)2023071792
a9-67.akam.net (2a02:26f0:117::43)2023071792

Checks

  • ✓ Serial 2023071792 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 20m, expire 20d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-40.akam.net is one of the listed nameservers.
  • ✓ Contact postmaster@electrocomponents.com #25
    The SOA RNAME postmaster.electrocomponents.com means postmaster@electrocomponents.com.
  • ✓ Date-based serial #26
    The serial 2023071792 follows the YYYYMMDDnn convention (2023-07-17).

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

20 records at the apex

Found

Read from
193.108.91.40:53
TypeValueTTL
SOAa1-40.akam.net. postmaster.electrocomponents.com. 2023071792 3600 1200 1728000 36003600
NSa20-65.akam.net.3600
NSa16-64.akam.net.3600
NSa9-67.akam.net.3600
NSa1-40.akam.net.3600
NSa24-66.akam.net.3600
NSa11-67.akam.net.3600
A23.212.200.25020
TXT"google-site-verification=PxHfKuP-SREIWxKqwc9DkQHCR2MVr19kLJ4rCENAxxk"1800
TXT"_gev0xrf4dugc7cql2jbf1zmhrwxkbol"1800
TXT"google-site-verification=RBE1IsYYAD_ir7et26N31nHSHv3iBfWCLWVDFQUABew"1800
TXT"_yjd6jv8alhyam0nt8qrpexvgkwy67ng"1800
TXT"_r2kr9t8skd11ivv9nbwc2i9l5v5lta5"1800
TXT"google-site-verification=HMz0pF5OnuLUUR4dSFOqgEWWjV-b0mJgPmusGQnpWPQ"1800
TXT"_o9qflaurq16dbcesvb4ltaspotoghfp"1800
TXT"google-site-verification=tSFFgvzujE1U-tUU685U1jvmIrcyYG9ywqpxFhsFJ_Q"1800
TXT"_zwdz73foe8n55f3ruzm78wyltclqup8"1800
TXT"v=spf1 include:_spf.sidetrade.net ip4:77.32.138.90 -all"1800
TXT"_1imreq0et39x3es2qqagecvzdahps7j"1800
TXT"_axnhifz6snxkyc2mmawhx7g807jenfn"1800

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1h; resolvers may use either.
    #32
  • ✓ 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