1stclassmailboxes.com - robtex.com

1stclassmailboxes.com

DNSSEC⚠️ Not signed
A198.49.23.144🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US ✓ In HTTPS hints
A198.49.23.145🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US ✓ In HTTPS hints
A198.185.159.144🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US ✓ In HTTPS hints
A198.185.159.145🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US ✓ In HTTPS hints
NSns-cloud-c1.googledomains.com ⭐
A2001:4860:4802:32::6c🇺🇸 Google2001:4860::/32
PTRns-cloud-c1.googledomains.com
A216.239.32.108🇺🇸 Google216.239.32.0/24
PTRns-cloud-c1.googledomains.com
NSns-cloud-c2.googledomains.com
A2001:4860:4802:34::6c🇺🇸 Google2001:4860::/32
PTRns-cloud-c2.googledomains.com
A216.239.34.108🇺🇸 Google216.239.34.0/24
PTRns-cloud-c2.googledomains.com
NSns-cloud-c3.googledomains.com
A2001:4860:4802:36::6c🇺🇸 Google2001:4860::/32
PTRns-cloud-c3.googledomains.com
A216.239.36.108🇺🇸 Google216.239.36.0/24
PTRns-cloud-c3.googledomains.com
NSns-cloud-c4.googledomains.com
A2001:4860:4802:38::6c🇺🇸 Google2001:4860::/32
PTRns-cloud-c4.googledomains.com
A216.239.38.108🇺🇸 Google216.239.38.0/24
PTRns-cloud-c4.googledomains.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f26.1e100.net
A172.253.122.27🇺🇸 Google172.253.122.0/24
PTRbh-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4023:2801::1b🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f27.1e100.net
A192.178.128.26🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4023:1015::1b🇺🇸 Google2607:f8b0::/32
PTRyudfwta-in-f27.1e100.net
A172.253.135.26🇺🇸 Google172.253.135.0/24
PTRyudfwta-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4023:3003::1b🇺🇸 Google2607:f8b0::/32
PTRyulnkjt-in-f27.1e100.net
A172.253.145.27🇺🇸 Google172.253.145.0/24
PTRyulnkjt-in-f27.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c00::1b🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f27.1e100.net
PTRws-in-x1b.1e100.net
A173.194.76.27🇺🇸 Google173.194.76.0/24
PTRws-in-f27.1e100.net
TXTgoogle-site-verification=F7XIVDtaHqsti2HWGpa8M8VP10ERGOa4eap6sH3EGu8
HTTPSHTTP/2, HTTP/1.1 ✓ hints match
IPv4198.185.159.144, 198.185.159.145, 198.49.23.144, 198.49.23.145
SOAns-cloud-c1.googledomains.comcloud-dns-hostmaster@google.com serial=1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774562402

Same first word

1stclassmailboxes.com

DNS History

17 records (13 active, 4 former)

200920112013201520172019202120232025NSns-cloud-c1.googledomains.comns-cloud-c2.googledomains.comns-cloud-c3.googledomains.comns-cloud-c4.googledomains.comns1.aaiserver.netns2.aaiserver.netMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.commail.1stclassmailboxes.comA198.185.159.144198.185.159.145198.49.23.144198.49.23.145209.98.75.233
●NSns-cloud-c1.googledomains.com2026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
●NSns-cloud-c2.googledomains.com2026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
●NSns-cloud-c3.googledomains.com2026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
●NSns-cloud-c4.googledomains.com2026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
○NSns1.aaiserver.net2008-03-14 → 2008-03-14 · 3 obs
● 2008-03-14 01:23:38
○ 2015-10-20 16:46:02
○ 2026-03-26 22:07:50
○NSns2.aaiserver.net2008-03-14 → 2008-03-14 · 3 obs
● 2008-03-14 01:23:38
○ 2015-10-20 16:46:02
○ 2026-03-26 22:07:50
●MXalt1.aspmx.l.google.com2026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
●MXalt2.aspmx.l.google.com2026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
●MXalt3.aspmx.l.google.com2026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
●MXalt4.aspmx.l.google.com2026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
●MXaspmx.l.google.com2026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
○MXmail.1stclassmailboxes.com2008-03-14 → 2008-03-14 · 3 obs
● 2008-03-14 01:23:38
○ 2015-10-20 16:46:02
○ 2026-03-26 22:07:50
●A198.185.159.1442026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
●A198.185.159.1452026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
●A198.49.23.1442026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
●A198.49.23.1452026-03-26 → 2026-03-26 · 2 obs
○ 2015-10-20 16:46:02
● 2026-03-26 22:07:50
○A209.98.75.2332008-03-14 → 2008-03-14 · 3 obs
● 2008-03-14 01:23:38
○ 2015-10-20 16:46:02
○ 2026-03-26 22:07:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net...-
1stclassmailboxes.comns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com8 records

✅ Authoritative Response

Server:216.239.38.108

NS records: ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 1stclassmailboxes.com (unsigned zone)

⏱️ Timing

Total: 323ms | Queries: -

📄 Records

TypeCountSample Data
A4198.185.159.145, 198.49.23.144...
NS4ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com...
MX5alt4.aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 5)...
TXT1google-site-verification=F7XIVDtaHqsti2H
HTTPS1{"priority":1,"target":".","alpn":["h2",
SOA1ns-cloud-c1.googledomains.com cloud-dns-

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-c1.googledomains.com, ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com...)

Analysis

IP Addresses

1stclassmailboxes.com points to four IP numbers: 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.

For instance, other host names swipeby.net, ada.fish, anushree-sreedhar.com, doyourjobs.org and photographysecretscourse.com share IP numbers with 1stclassmailboxes.com.

Name Servers

1stclassmailboxes.com is delegated to four name servers: ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com and ns-cloud-c4.googledomains.com.

1stclassmailboxes.com shares name servers with other domains at least partially, for example sharptailconstruction.com, endless.fish, lawcf.org, force-analysis.com and nationwidepress.com.

Host names with two IP numbers:

ns-cloud-c1.googledomains.com points to: 2001:4860:4802:32::6c and 216.239.32.108

ns-cloud-c2.googledomains.com points to: 2001:4860:4802:34::6c and 216.239.34.108

ns-cloud-c3.googledomains.com points to: 2001:4860:4802:36::6c and 216.239.36.108

ns-cloud-c4.googledomains.com points to: 2001:4860:4802:38::6c and 216.239.38.108

Mail Servers

Five mail servers handle 1stclassmailboxes.com: 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.

1stclassmailboxes.com shares mail servers with other domains at least partially; for instance sijnet.com.br, admgrupo.com, logicserv.de, iconconstruction.com.mx and pandigital.com.

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

Host names with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4004:c19::1a and 172.253.122.27

alt1.aspmx.l.google.com points to 2607:f8b0:4023:2801::1b and 192.178.128.26

alt2.aspmx.l.google.com points to 2607:f8b0:4023:1015::1b and 172.253.135.26

alt3.aspmx.l.google.com points to 2607:f8b0:4023:3003::1b and 172.253.145.27

alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1b and 173.194.76.27