csr4.org - robtex.com

csr4.org

DNSSEC⚠️ Not signed
A18.233.124.95🇺🇸 Amazon18.232.0.0/14 EC2 IAD prefix
PTRec2-18-233-124-95.compute-1.amazonaws.com
A54.221.139.169🇺🇸 Amazon54.221.0.0/16 EC2 IAD prefix
NSns-cloud-a1.googledomains.com ⭐
A2001:4860:4802:32::6a🇺🇸 Google2001:4860::/32
PTRns-cloud-a1.googledomains.com
A216.239.32.106🇺🇸 Google216.239.32.0/24
PTRns-cloud-a1.googledomains.com
NSns-cloud-a2.googledomains.com
A2001:4860:4802:34::6a🇺🇸 Google2001:4860::/32
PTRns-cloud-a2.googledomains.com
A216.239.34.106🇺🇸 Google216.239.34.0/24
PTRns-cloud-a2.googledomains.com
NSns-cloud-a3.googledomains.com
A2001:4860:4802:36::6a🇺🇸 Google2001:4860::/32
PTRns-cloud-a3.googledomains.com
A216.239.36.106🇺🇸 Google216.239.36.0/24
PTRns-cloud-a3.googledomains.com
NSns-cloud-a4.googledomains.com
A2001:4860:4802:38::6a🇺🇸 Google2001:4860::/32
PTRns-cloud-a4.googledomains.com
A216.239.38.106🇺🇸 Google216.239.38.0/24
PTRns-cloud-a4.googledomains.com
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=NUs8jvBqGbiiko5Y0Ric6R93fh2EZ6YwZPdpCEUoIXE
TXTv=spf1 include:_spf.google.com ~all
TXTgoogle-site-verification=HUJi3gfTOG1UBzwiaNScHCvQTGo7OxfxW1Xw6ooHHT4
SOAns-cloud-a1.googledomains.comcloud-dns-hostmaster@google.com serial=1

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1773551953
📈 Tranco rank: #774,665

Subdomains

www.csr4.org

Same first word

csr4.org

Similar names

cr4s.jp
4crs.ru
4scr.tv
scr4.com
4src.co.uk
r4cs.com
crs4.it
4crs.com
scr4.me
4scr.com
4rcs.com

DNS History

11 records (11 active, 0 former)

NSns-cloud-a1.googledomains.comns-cloud-a2.googledomains.comns-cloud-a3.googledomains.comns-cloud-a4.googledomains.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA18.233.124.9554.221.139.169
●NSns-cloud-a1.googledomains.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52
●NSns-cloud-a2.googledomains.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52
●NSns-cloud-a3.googledomains.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52
●NSns-cloud-a4.googledomains.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52
●MXalt1.aspmx.l.google.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52
●MXalt2.aspmx.l.google.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52
●MXalt3.aspmx.l.google.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52
●MXalt4.aspmx.l.google.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52
●MXaspmx.l.google.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52
●A18.233.124.952026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52
●A54.221.139.1692026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:24:44
● 2026-03-23 19:41:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
csr4.orgns-cloud-a4.googledomains.com, ns-cloud-a3.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a1.googledomains.com-

✅ Authoritative Response

Server:216.239.38.106

NS records: ns-cloud-a4.googledomains.com, ns-cloud-a3.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a1.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for csr4.org (unsigned zone)

⏱️ Timing

Total: 783ms | Queries: -

📄 Records

TypeCountSample Data
A254.221.139.169, 18.233.124.95
NS4ns-cloud-a4.googledomains.com, ns-cloud-a3.googledomains.com...
MX5alt2.aspmx.l.google.com (pri: 5), aspmx.l.google.com (pri: 1)...
TXT3google-site-verification=HUJi3gfTOG1UBzw, google-site-verification=NUs8jvBqGbiiko5...
SOA1ns-cloud-a1.googledomains.com cloud-dns-

Analysis

Hierarchy

csr4.org is the parent of www.csr4.org.

IP Addresses

csr4.org resolves to two IP numbers: 18.233.124.95 and 54.221.139.169.

other host names including mcps.k12.ok.us, osd.k12.ok.us, indians.wsc.k12.ar.us, crittenden.k12.ky.us and (0x6469636b)sonps.smartsiteshost.com share IP numbers with csr4.org.

Name Servers

csr4.org is delegated to four name servers: ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com and ns-cloud-a4.googledomains.com.

csr4.org at least partially shares name servers with other domains, for instance cronesincorporated.com, kidswriting.net, melocentral.com, tupperware.com.gr and cricplay.com.

Host names with two IP numbers:

ns-cloud-a1.googledomains.com points to 2001:4860:4802:32::6a and 216.239.32.106; ns-cloud-a2.googledomains.com points to 2001:4860:4802:34::6a and 216.239.34.106; ns-cloud-a3.googledomains.com points to 2001:4860:4802:36::6a and 216.239.36.106; ns-cloud-a4.googledomains.com points to 2001:4860:4802:38::6a and 216.239.38.106.

Mail Servers

csr4.org 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.

csr4.org shares some mail servers with other domains, at least partially, for instance lovecrave.com, bitwired.it, stratfordk12.org, ns500734.ns500699.ns500693.ns500734.ns500734.ns500734.ns500699.ns500699.ns500699.ns500699.ns500588.ns500588.ns500693.ns500588.ns500588.dtrkdll.com and ns500754.ns500742.ns500671.ns500754.ns500704.ns500671.ns500742.ns500688.ns500671.ns500671.ns500678.ns500649.ns500688.ns500649.ns500649.lustychickser.com.

these mail servers are often used with 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::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