Domain report: siteimprove.com

Registration

info

.com generic · GoDaddy.com, LLC · expires 2026-12-04

Found

TLD: .com (generic)
ICANN policies apply: yes
Registrar: GoDaddy.com, LLC
Registered: 4 December 2002
Last changed: 28 November 2025
Expires: 4 December 2026
Status: client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers: ns-1204.awsdns-22.org, ns-2032.awsdns-62.co.uk, ns-224.awsdns-28.com, ns-681.awsdns-21.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 2026-12-04 #3

The registration is valid until 2026-12-04 (42 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

ns-1204.awsdns-22.org, ns-2032.awsdns-62.co.uk, ns-224.awsdns-28.com, ns-681.awsdns-21.net

Found

Parent zone: com
Delegation from: a.gtld-servers.net (192.5.6.30)
NS at the parent: ns-1204.awsdns-22.org, ns-2032.awsdns-62.co.uk, ns-224.awsdns-28.com, ns-681.awsdns-21.net
NS in the zone: ns-1204.awsdns-22.org, ns-2032.awsdns-62.co.uk, ns-224.awsdns-28.com, ns-681.awsdns-21.net

Nameserver	Addresses	Network (AS)	Glue
ns-1204.awsdns-22.org	205.251.196.180 2600:9000:5304:b400::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-
ns-2032.awsdns-62.co.uk	205.251.199.240 2600:9000:5307:f000::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-
ns-224.awsdns-28.com	205.251.192.224 2600:9000:5300:e000::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	205.251.192.224 2600:9000:5300:e000::1
ns-681.awsdns-21.net	205.251.194.169 2600:9000:5302:a900::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-

Checks

✓ 4 nameservers #6

Delegated to ns-1204.awsdns-22.org, ns-2032.awsdns-62.co.uk, ns-224.awsdns-28.com, ns-681.awsdns-21.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 4 IPv4 /24s and 4 IPv6 /48s.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
✓ Nameserver names under 4 TLDs #12

Nameserver names use the TLDs .com, .net, .org, .uk.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns-1204.awsdns-22.org 205.251.196.180	NOERROR, 3 ms, authoritative	no	yes / yes	refused	-
ns-1204.awsdns-22.org 2600:9000:5304:b400::1	NOERROR, 4 ms, authoritative	no	yes / yes	refused	-
ns-2032.awsdns-62.co.uk 205.251.199.240	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-2032.awsdns-62.co.uk 2600:9000:5307:f000::1	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-224.awsdns-28.com 205.251.192.224	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-224.awsdns-28.com 2600:9000:5300:e000::1	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-681.awsdns-21.net 205.251.194.169	NOERROR, 4 ms, authoritative	no	yes / yes	refused	-
ns-681.awsdns-21.net 2600:9000:5302:a900::1	NOERROR, 8 ms, authoritative	no	yes / yes	refused	-

Checks

✓ All respond #14

All 8 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

pass

serial 1 · primary ns-681.awsdns-21.net

Found

Primary (MNAME): ns-681.awsdns-21.net
Contact (RNAME): awsdns-hostmaster.amazon.com
Serial: 1
Refresh / retry: 7200 s / 900 s
Expire: 1209600 s
Negative TTL: 86400 s

Serial per nameserver

Nameserver	Serial
ns-1204.awsdns-22.org (205.251.196.180)	1
ns-1204.awsdns-22.org (2600:9000:5304:b400::1)	1
ns-2032.awsdns-62.co.uk (205.251.199.240)	1
ns-2032.awsdns-62.co.uk (2600:9000:5307:f000::1)	1
ns-224.awsdns-28.com (205.251.192.224)	1
ns-224.awsdns-28.com (2600:9000:5300:e000::1)	1
ns-681.awsdns-21.net (205.251.194.169)	1
ns-681.awsdns-21.net (2600:9000:5302:a900::1)	1

Checks

✓ Serial 1 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
✓ Primary is a public nameserver #24

The primary nameserver ns-681.awsdns-21.net is one of the listed nameservers.
✓ Contact awsdns-hostmaster@amazon.com #25

The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
✓ Counter serial #26

The serial 1 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

warn

35 records at the apex

Found

Read from: 205.251.196.180:53

Type	Value	TTL
SOA	ns-681.awsdns-21.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400	900
NS	ns-1204.awsdns-22.org.	172800
NS	ns-2032.awsdns-62.co.uk.	172800
NS	ns-224.awsdns-28.com.	172800
NS	ns-681.awsdns-21.net.	172800
A	217.114.94.2	60
MX	0 siteimprove-com.mail.protection.outlook.com.	86400
TXT	"_pchfh9e37dj0ydplf08b8nnp4f2ocbo"	300
TXT	"anthropic-domain-verification-sjrfp7=NDhheXAVylB0euQKFrD3c8GYA"	300
TXT	"atlassian-domain-verification=mJJItgbPoWEaG8Pzx7Xoq7o2KsxPuh5b2eNmCDF76R4RLQy4iSZOxKne98HeAPkh"	300
TXT	"atlassian-domain-verification=nnDCTkaP6kqmLaA4SFvv7ev2OW3QxvbSzQzH9xPzqsCSlDyrEa3RDKvuabFnOYOl"	300
TXT	"atlassian-sending-domain-verification=0db4c198-ec5b-47a7-8ba3-6e8adc80b05c"	300
TXT	"atlassian-sending-domain-verification=f0e419f1-c5cb-4e3a-9c54-22e59d0cb517"	300
TXT	"canva-site-verification=-xww3DRnj5SD47KpfXWipA"	300
TXT	"docusign=d4fa5696-3a71-4c83-9840-3122dfef7b07"	300
TXT	"google-site-verification=D52sRqyzAI117W7am3kRp5dD-HUcqzQYFaJqVKtV6A0"	300
TXT	"google-site-verification=HuJ4NEzgcRN6-IX7k27Jvnm9KFwii-7eRR_IVHunfdE"	300
TXT	"google-site-verification=y0ihB-ftycmJFgxg-ZkgETULTMI01jBH4gAIjDzChFk"	300
TXT	"jamf-site-verification=J_7g-q2pza-uoTFNN1jTzQ"	300
TXT	"maven-central-verification=uk2l4cmkyp"	300
TXT	"reachdesk-verification=yrhKA4HBO30AVf0JY7EW44Q0Ts1KAngYt3T2cZfq2HECXhIkGhCqorjNBMhVwxvH"	300
TXT	"slack-domain-verification=GR9uywnRlFKHevebq0NlUa8R5ag4fp8M8WrGulkF"	300
TXT	"ticket-3470"	300
TXT	"v=spf1 include:spf1.siteimprove.com include:spf4.siteimprove.com include:spf.protection.outlook.com include:_spf.salesforce.com include:amazonses.com include:spf5.siteimprove.com include:146950224.spf01.hubspotemail.net -all"	300
CAA	0 issue "amazon.com"	300
CAA	0 issue "amazonaws.com"	300
CAA	0 issue "amazontrust.com"	300
CAA	0 issue "awstrust.com"	300
CAA	0 issue "digicert.com"	300
CAA	0 issue "geotrust.com"	300
CAA	0 issue "globalsign.com"	300
CAA	0 issue "godaddy.com"	300
CAA	0 issue "letsencrypt.org"	300
CAA	0 issue "pki.goog"	300
CAA	0 issue "rapidssl.com"	300

Checks

!

Very low TTLs

These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change.

#32
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
✓ No wildcard #34

Names that don't exist return NXDOMAIN.
✓ CAA restricts issuance #35

Certificates may be issued by: amazon.com, amazonaws.com, amazontrust.com, awstrust.com, digicert.com, geotrust.com, globalsign.com, godaddy.com, letsencrypt.org, pki.goog, rapidssl.com.