Domain report: netscout.com

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-05-03

Found

TLD: .com (generic)
ICANN policies apply: yes
Registrar: CSC Corporate Domains, Inc.
Registered: 2 May 1997
Last changed: 29 April 2026
Expires: 3 May 2027
Status: client transfer prohibited
Registry nameservers: udns1.cscdns.net, udns2.cscdns.uk
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 2027-05-03 #3

The registration is valid until 2027-05-03 (192 days).
✓ Transfer locked #4

Registry status: client transfer prohibited.
✓ Registry and delegation match #5

The nameservers registered at the registry are the ones published in DNS.

Delegation

info

udns1.cscdns.net, udns2.cscdns.uk

Found

Parent zone: com
Delegation from: a.gtld-servers.net (192.5.6.30)
NS at the parent: udns1.cscdns.net, udns2.cscdns.uk
NS in the zone: udns1.cscdns.net, udns2.cscdns.uk

Nameserver	Addresses	Network (AS)	Glue
udns1.cscdns.net	204.74.66.1 2001:502:f3ff::201	AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US	-
udns2.cscdns.uk	204.74.111.1 2001:502:4612::201	AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US	-

Checks

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: udns1.cscdns.net, udns2.cscdns.uk.

#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 2 IPv6 /48s.
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS12008 (VERCARA - Vercara, LLC, 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
✓ Nameserver names under 2 TLDs #12

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

Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
udns1.cscdns.net 204.74.66.1	NOERROR, 3 ms, authoritative	no	yes / yes	refused	UltraDNS Nameserver
udns1.cscdns.net 2001:502:f3ff::201	NOERROR, 6 ms, authoritative	no	yes / yes	refused	UltraDNS Nameserver
udns2.cscdns.uk 204.74.111.1	NOERROR, 13 ms, authoritative	no	yes / yes	refused	UltraDNS Nameserver
udns2.cscdns.uk 2001:502:4612::201	NOERROR, 35 ms, authoritative	no	yes / yes	refused	UltraDNS Nameserver

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.
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Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: udns1.cscdns.net: "UltraDNS Nameserver"; udns2.cscdns.uk: "UltraDNS Nameserver".

#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 2019113045 · primary udns1.cscdns.net

Found

Primary (MNAME): udns1.cscdns.net
Contact (RNAME): premiumdns.support.neustar
Serial: 2019113045
Refresh / retry: 28800 s / 7200 s
Expire: 1209600 s
Negative TTL: 86400 s

Serial per nameserver

Nameserver	Serial
udns1.cscdns.net (204.74.66.1)	2019113045
udns1.cscdns.net (2001:502:f3ff::201)	2019113045
udns2.cscdns.uk (204.74.111.1)	2019113045
udns2.cscdns.uk (2001:502:4612::201)	2019113045

Checks

✓ Serial 2019113045 everywhere #22

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

SOA refresh 8h, retry 2h, expire 14d, negative TTL 1d.
✓ Primary is a public nameserver #24

The primary nameserver udns1.cscdns.net is one of the listed nameservers.
✓ Contact premiumdns@support.neustar #25

The SOA RNAME premiumdns.support.neustar means premiumdns@support.neustar.
✓ Date-based serial #26

The serial 2019113045 follows the YYYYMMDDnn convention (2019-11-30).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC
Signatures valid until: 2 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
43152	ECDSAP256SHA256 (13)	SHA1 3272D1BAE6F8B0E1…	yes
43152	ECDSAP256SHA256 (13)	SHA256 B870E19F87A703E5…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
61710	ZSK (256)	ECDSAP256SHA256 (13)
7524	ZSK (256)	ECDSAP256SHA256 (13)
43152	KSK (257)	ECDSAP256SHA256 (13)

Checks

✓ Signed and validated #27

The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
✓ DS matches a key #28

The DS record at the parent matches a key in the zone: key tag 43152 (SHA1), key tag 43152 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Signatures valid until 2026-11-02 #30

The earliest DNSKEY/SOA signature expires at 2026-11-02 01:35 UTC.
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NSEC

The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.

#31

Records

info

29 records at the apex

Found

Read from: 204.74.66.1:53

Type	Value	TTL
SOA	udns1.cscdns.net. premiumdns.support.neustar. 2019113045 28800 7200 1209600 86400	86400
NS	udns1.cscdns.net.	86400
NS	udns2.cscdns.uk.	86400
A	76.223.34.124	300
A	13.248.160.137	300
MX	10 mxa-00196b01.gslb.pphosted.com.	3600
MX	10 mxb-00196b01.gslb.pphosted.com.	3600
MX	20 mx0a-00196b01.pphosted.com.	3600
MX	20 mx0b-00196b01.pphosted.com.	3600
TXT	"MS=ms40257330"	86400
TXT	"klaviyo-site-verification=QVA9hz"	86400
TXT	"ZOOM_verify_k1VjbGovT9S3mlrfc9J06w"	86400
TXT	"apple-domain-verification=RWnFoQ7OqecMgunE"	86400
TXT	"jamf-site-verification=LFa3cNFdu-lFn3KnXoMGEw"	86400
TXT	"amazonses:YndTWJpfz96U/T+ddbE+8R8i+n8R/2Gvy8wBDbP7Z+c="	86400
TXT	"adobe-sign-verification=fa1a5a6bac8b9f5f7a2e5c791a72c6c4"	86400
TXT	"N3keJqxJUwg/xpbm/IWyQIT89s4QBdXlkLgmeeKxVOnu3TvpBXDdPuJ6nMoeHD52"	86400
TXT	"webexdomainverification.28B3I=d92a6299-3f38-4809-987d-f189c213097e"	86400
TXT	"google-site-verification=ED8kX4iYN1SMkinJMLE5zrZA41GzfeoR9hLPAz0sIn8"	86400
TXT	"pardot1034473=70cfb37f5d8ff2017af5ef3e876f163b90c07198ae27faa473c380bc5ac8e3ab"	86400
TXT	"pardot1034473=ab9d3b5a1eaa665e0e720e9d1d64415fb213804e13ed285ef0ce5f96cf07a5cd"	86400
TXT	"sending_domain1034473=1efcad9c18e522b181db7891e9fa6f635b7d1a81764347cda71ba81ccb6cc702"	86400
TXT	"86N85hy5psp4I4kXwqXj6r/E5eGxpVzUhs9ztOzODD6aWDlc4BBvQNA4TjHMma7dGVxmLxXgH6XbzjaoEWOqTQ=="	86400
TXT	"ZAptkhd3oCTFvKZFfy+DrYD8rioXFZtu2DmnmUxPPJ+fpCKJtkK0fW+SKnO8Yetfv2MwvnvuNZ1+cfgS+uF3qg=="	86400
TXT	"ciscocidomainverification=23d1bd02b91304f9d5be2a96565df7c5580db7afeb69e1bf170d42ac6e89f100"	86400
TXT	"infoblox-domain-mastery=c254f1f05528236d3766616f4cf268ee720ae700f192778b6971648060033a54f3"	86400
TXT	"atlassian-domain-verification=OE8dCIGuCALNDaoWzPZNP4NjgNbCqkfh/IyNWaeLQTV7irxUAd65yJXUtTShYIBj"	86400
TXT	"paloaltonetworks-site-verification=7c5977fd3c3397f63f67a57b883b3bd56b405928afa42fb838aae6b214486b24"	86400
TXT	"v=spf1 a:spf.peopleclick.com include:spf.netscout.com include:spf-00196b01.pphosted.com include:spf.protection.outlook.com include:_spf.salesforce.com ip4:13.111.68.128 -all"	86400

Checks

✓ TTLs within range #32

TTLs: A 5m, MX 1h, 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.
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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