first1000.co - robtex.com

first1000.co

DNSSEC⚠️ Not signed
A3.33.152.147🇺🇸 Amazon3.33.144.0/20
PTRa4ec4c6ea1c92e2e6.awsglobalaccelerator.com
A15.197.142.173🇺🇸 Amazon15.197.128.0/20
NSns-1702.awsdns-20.co.uk ⭐
A2600:9000:5306:a600::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront
PTRns-1702.awsdns-20.co.uk
A205.251.198.166🇺🇸 Amazon205.251.198.0/24 prefix
PTRns-1702.awsdns-20.co.uk
NSns-1041.awsdns-02.org
A2600:9000:5304:1100::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront
PTRns-1041.awsdns-02.org
A205.251.196.17🇺🇸 Amazon205.251.196.0/24 prefix
PTRns-1041.awsdns-02.org
NSns-452.awsdns-56.com
A2600:9000:5301:c400::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-452.awsdns-56.com
A205.251.193.196🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-452.awsdns-56.com
NSns-764.awsdns-31.net
A2600:9000:5302:fc00::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-764.awsdns-31.net
A205.251.194.252🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-764.awsdns-31.net
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f27.1e100.net
A172.253.62.27🇺🇸 Google172.253.62.0/24
PTRbc-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4003:c30::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulis-in-f27.1e100.net
A74.125.27.26🇺🇸 Google74.125.27.0/24
PTRyutulis-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f26.1e100.net
A192.178.209.26🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4024:c0d::1b🇺🇸 Google2607:f8b0::/32
PTRmj-in-f27.1e100.net
A192.178.152.26🇺🇸 Google192.178.152.0/24
PTRmj-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4023:403::1a🇺🇸 Google2607:f8b0::/32
PTRgg-in-f26.1e100.net
A142.250.96.27🇺🇸 Google142.250.96.0/24
PTRgg-in-f27.1e100.net
TXTgoogle-site-verification=XGVQiWRFwgzKxG07sHHNX6X6YHBZBoPUqPoyycYJ4a0
TXTv=spf1 include:dc-aa8e722993._spfm.first1000.co ~all
SOAns-1702.awsdns-20.co.ukawsdns-hostmaster@amazon.com serial=1

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐
NSa.registrydns.co
NSb.registrydns.co
NSc.registrydns.co
NSd.registrydns.co
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759609616

Subdomains

www.first1000.co

Same first word

first1000.co

DNS History

11 records (11 active, 0 former)

NSns-1041.awsdns-02.orgns-1702.awsdns-20.co.ukns-452.awsdns-56.comns-764.awsdns-31.netMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA15.197.142.1733.33.152.147
●NSns-1041.awsdns-02.org2026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00
●NSns-1702.awsdns-20.co.uk2026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00
●NSns-452.awsdns-56.com2026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00
●NSns-764.awsdns-31.net2026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00
●MXalt1.aspmx.l.google.com2026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00
●MXalt2.aspmx.l.google.com2026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00
●MXalt3.aspmx.l.google.com2026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00
●MXalt4.aspmx.l.google.com2026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00
●MXaspmx.l.google.com2026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00
●A15.197.142.1732026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00
●A3.33.152.1472026-02-16 → 2026-03-18 · 2 obs
● 2026-02-16 22:59:00
● 2026-03-18 22:29:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cob.registrydns.co, c.registrydns.co, d.registrydns.co, a.registrydns.co-
first1000.cons-1041.awsdns-02.org, ns-452.awsdns-56.com, ns-764.awsdns-31.net, ns-1702.awsdns-20.co.uk-

✅ Authoritative Response

Server: 205.251.194.252

NS records: ns-1041.awsdns-02.org, ns-452.awsdns-56.com, ns-764.awsdns-31.net, ns-1702.awsdns-20.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for first1000.co (unsigned zone)

⏱️ Timing

Total: 723ms | Queries: -

📄 Records

TypeCountSample Data
A215.197.142.173, 3.33.152.147
NS4ns-1041.awsdns-02.org, ns-1702.awsdns-20.co.uk...
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT2google-site-verification=XGVQiWRFwgzKxG0, v=spf1 include:dc-aa8e722993._spfm.first
SOA1ns-1702.awsdns-20.co.uk awsdns-hostmaste

Analysis

Hierarchy

www.first1000.co has first1000.co as its parent.

IP Addresses

first1000.co points to two IPs: 3.33.152.147 and 15.197.142.173.

Other host names, for instance jdonahue.com, clearancexl.com, cphss.org, firstword.tv and www.poweranalyticssoftware.net share IP numbers with first1000.co.

Name Servers

first1000.co is delegated to four name servers: ns-452.awsdns-56.com, ns-764.awsdns-31.net, ns-1041.awsdns-02.org and ns-1702.awsdns-20.co.uk.

first1000.co at least partially shares name servers with other domains such as simplefollowbuttons.com, elaprase.be, closetprosoftware.net, d3gzdmvpg6poo2.cloudfront.net and data3001.com.

These name servers are commonly used alongside ns-396.awsdns-49.com, ns-701.awsdns-23.net and ns-1583.awsdns-05.co.uk.

Host names with two IP numbers:

ns-452.awsdns-56.com points to 2600:9000:5301:c400::1 and 205.251.193.196

ns-764.awsdns-31.net points to 2600:9000:5302:fc00::1 and 205.251.194.252

ns-1041.awsdns-02.org points to 2600:9000:5304:1100::1 and 205.251.196.17

ns-1702.awsdns-20.co.uk points to 2600:9000:5306:a600::1 and 205.251.198.166

Mail Servers

first1000.co is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

first1000.co shares mail servers with other domains at least in part, for instance ns500742.ns500754.ns500754.ns500742.ns500688.ns500705.ns500671.ns500671.ns500666.tenderladiesbz.com, mattwilliamsnyc.com, sarrfreights.com, nsamichigan.org and andrewkellyphoto.com.

These mail servers are often used together with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Two IPs per host name:

aspmx.l.google.com points to: 2607:f8b0:4004:c19::1b and 172.253.62.27

alt1.aspmx.l.google.com points to: 2607:f8b0:4003:c30::1b and 74.125.27.26

alt2.aspmx.l.google.com points to: 2607:f8b0:4001:c70::1a and 192.178.209.26

alt3.aspmx.l.google.com points to: 2607:f8b0:4024:c0d::1b and 192.178.152.26

alt4.aspmx.l.google.com points to: 2607:f8b0:4023:403::1a and 142.250.96.27

Pattern: left IDs ascend by 9 (12, 21, 30, 39, 48); each pair of targets ascend by 9 (15/18, 24/27, 33/36, 42/45, 51/54)