csrt.org - dns.ninja

`csrt.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:5749^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:8e58^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.87.73^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.142.88^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ashley.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a47^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c047^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ashley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2047^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ashley.ns.cloudflare.com`
		A	108.162.192.71^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	172.64.32.71^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	173.245.58.71^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
NS	`chris.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b55^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c155^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`chris.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2155^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`chris.ns.cloudflare.com`
		A	108.162.193.85^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
		A	172.64.33.85^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
		A	173.245.59.85^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
MX	`csrt-org.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::4^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01504.inbound.protection.outlook.com`
		A	2a01:111:f403:c931::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr02cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::6^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch5pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:f908::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn1pr21cu00100.inbound.protection.outlook.com`
		A	52.101.9.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr03cu00206.inbound.protection.outlook.com`
		A	52.101.9.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr04cu00205.inbound.protection.outlook.com`
		A	52.101.41.183^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-byapr04cu00307.inbound.protection.outlook.com`
		A	52.101.50.1^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr05cu00401.inbound.protection.outlook.com`
TXT	`MS=ms23845316`
TXT	`v=spf1 a mx ip4:209.235.234.1 ip4:209.235.234.2 ip4:65.115.93.43/29 include:...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.87.73, 172.67.142.88
		IPv6 hints	2606:4700:3031::6815:5749, 2606:4700:3036::ac43:8e58
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=15, name=cloudflare-ech.com
SOA	`ashley.ns.cloudflare.com`dns@cloudflare.com serial=2410688456

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1785925647

WOT: SAFE (63/100)

Subdomains

www.csrt.org

Same first word

csrt.org

csrt.com

csrt.ru

csrt.net.cn

csrt.site

csrt.be

csrt.net

csrt.us

csrt.hu

Similar names

tcrs.jp

rstc.de

rcts.de

tcrs.net

tcsr.fr

rtcs.dev

srtc.org.vn

stcr.com

rtsc.org

strc.info

tsrc.de

sctr.us

rtsc.com.br

rtcs.com.my

rtcs.com.au

trsc.ru

sctr.de

strc.org.cn

tcsr.de

tscr.cz

scrt.org

trsc.org

rcst.cn

rcts.fr

strc.cc

sctr.ru

sctr.io

srtc.co.nz

crst.net

rtcs.ddns.net

srtc.net

cstr.me

rcst.or.th

scrt.com.cn

crts.edu

rstc.co.ir

scrt.de

crst.bt

rtsc.com

crst.ru

tsrc.com.tw

rcst.com.tw

tsrc.com.cn

trsc.io

ctrs.us

rcts.co.uk

trsc.com.br

rcts.in

rstc.eu

crts.me

trcs.org

strc.at

tsrc.org

crst.us

scrt.ru

ctrs.com.cn

rstc.com.cn

rtcs.me

trcs.de

tcrs.com.au

tsrc.or.jp

rtcs.au

tsrc.com

srct.ir

trcs.ru

srtc.ac.th

trcs.com

rcts.org.uk

scrt.org.uk

rtsc.ru

strc.com

rcst.net

rcst.com

tcsr.org

ctrs.com

sctr.net.au

crts.tn

scrt.fyi

rtsc.eu

strc.net

srtc.co.zw

rcst.org

cstr.com

crts.ca

scrt.ca

rstc.org

tsrc.lt

srtc.org

srct.org.uk

tcrs.ca

srtc.live

crst.co

strc.de

rcts.pt

srct.net

crts.training

crts.com.br

rtsc.co.jp

ctsr.com.cn

strc.be

strc.org.tw

scrt.link

rcts.ru

scrt.pl

scrt.fr

rsct.com

crst.in

rtsc.ck.ua

rstc.edu

scrt.scot

crts.ru

trsc.nic.in

ctrs.com.ua

crts.co.nz

ctsr.pl

tscr.nyc

crst.jp

cstr.pl

crts.ro

strc.xyz

ctsr.in

strc.ca

trsc.com

ctsr.ru

crts.com

srtc.com.cn

trsc.ac.th

rstc.fi

rstc.co.id

rtcs.net

DNS History

32 records (7 active, 25 former)

●NSashley.ns.cloudflare.com2026-05-03 → 2026-08-05 · 3 obs

○ 2016-11-29 06:37:36
● 2026-05-03 08:08:36
● 2026-08-05 11:05:30

●NSchris.ns.cloudflare.com2026-05-03 → 2026-08-05 · 3 obs

○ 2016-11-29 06:37:36
● 2026-05-03 08:08:36
● 2026-08-05 11:05:30

○NSdns1.cloudns.net2026-05-03 → 2026-08-05 · 2 obs

○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○NSdns2.cloudns.net2026-05-03 → 2026-08-05 · 2 obs

○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○NSdns5.cloudns.net2026-05-03 → 2026-08-05 · 2 obs

○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○NSdns6.cloudns.net2026-05-03 → 2026-08-05 · 2 obs

○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○NSns-1376.awsdns-44.org2016-02-23 → 2016-11-29 · 5 obs

○ 2015-11-22 05:01:14
● 2016-02-23 11:10:24
● 2016-11-29 06:37:36
○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○NSns-1770.awsdns-29.co.uk2016-02-23 → 2016-11-29 · 5 obs

○ 2015-11-22 05:01:14
● 2016-02-23 11:10:24
● 2016-11-29 06:37:36
○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○NSns-32.awsdns-04.com2016-02-23 → 2016-11-29 · 5 obs

○ 2015-11-22 05:01:14
● 2016-02-23 11:10:24
● 2016-11-29 06:37:36
○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○NSns-976.awsdns-58.net2016-02-23 → 2016-11-29 · 5 obs

○ 2015-11-22 05:01:14
● 2016-02-23 11:10:24
● 2016-11-29 06:37:36
○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○NSns45.worldnic.com2015-07-13 → 2015-11-22 · 4 obs

● 2015-07-13 15:28:50
● 2015-11-22 05:01:14
○ 2016-02-23 11:10:24
○ 2026-08-05 11:05:30

○NSns46.worldnic.com2015-07-13 → 2015-11-22 · 4 obs

● 2015-07-13 15:28:50
● 2015-11-22 05:01:14
○ 2016-02-23 11:10:24
○ 2026-08-05 11:05:30

○MXalt1.aspmx.l.google.com2015-07-13 → 2016-11-29 · 4 obs

● 2015-07-13 15:28:50
● 2016-11-29 06:37:36
○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○MXalt2.aspmx.l.google.com2015-07-13 → 2016-11-29 · 4 obs

● 2015-07-13 15:28:50
● 2016-11-29 06:37:36
○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○MXalt3.aspmx.l.google.com2016-02-23 → 2016-11-29 · 5 obs

○ 2015-11-22 05:01:14
● 2016-02-23 11:10:24
● 2016-11-29 06:37:36
○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○MXalt4.aspmx.l.google.com2016-02-23 → 2016-11-29 · 5 obs

○ 2015-11-22 05:01:14
● 2016-02-23 11:10:24
● 2016-11-29 06:37:36
○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○MXaspmx.l.google.com2015-07-13 → 2016-11-29 · 4 obs

● 2015-07-13 15:28:50
● 2016-11-29 06:37:36
○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

○MXaspmx2.googlemail.com2015-07-13 → 2015-11-22 · 4 obs

● 2015-07-13 15:28:50
● 2015-11-22 05:01:14
○ 2016-02-23 11:10:24
○ 2026-08-05 11:05:30

○MXaspmx3.googlemail.com2015-07-13 → 2015-11-22 · 4 obs

● 2015-07-13 15:28:50
● 2015-11-22 05:01:14
○ 2016-02-23 11:10:24
○ 2026-08-05 11:05:30

●MXcsrt-org.mail.protection.outlook.com2026-05-03 → 2026-08-05 · 3 obs

○ 2016-11-29 06:37:36
● 2026-05-03 08:08:36
● 2026-08-05 11:05:30

●A104.21.87.732026-05-03 → 2026-08-05 · 15 obs

○ 2016-11-29 06:37:36
● 2026-05-03 08:08:36
● 2026-05-13 04:40:28
○ 2026-05-14 07:27:50
○ 2026-05-18 14:31:14
● 2026-05-19 12:29:32
● 2026-05-24 20:06:44
○ 2026-05-26 13:32:28
● 2026-05-29 00:24:46
● 2026-06-03 01:38:02
○ 2026-06-06 22:20:42
○ 2026-06-09 02:14:04
● 2026-06-12 06:34:00
○ 2026-06-16 23:18:44
● 2026-08-05 11:05:30

○A144.202.110.1142026-05-03 → 2026-08-05 · 2 obs

○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

●A172.67.142.882026-05-03 → 2026-08-05 · 15 obs

○A188.114.96.02026-05-14 → 2026-06-16 · 13 obs

○ 2026-05-13 04:40:28
● 2026-05-14 07:27:50
● 2026-05-18 14:31:14
○ 2026-05-19 12:29:32
○ 2026-05-24 20:06:44
● 2026-05-26 13:32:28
○ 2026-05-29 00:24:46
○ 2026-06-03 01:38:02
● 2026-06-06 22:20:42
● 2026-06-09 02:14:04
○ 2026-06-12 06:34:00
● 2026-06-16 23:18:44
○ 2026-08-05 11:05:30

○A188.114.97.02026-05-14 → 2026-06-16 · 13 obs

○A199.116.77.192015-07-13 → 2015-11-22 · 4 obs

● 2015-07-13 15:28:50
● 2015-11-22 05:01:14
○ 2016-02-23 11:10:24
○ 2026-08-05 11:05:30

●A2606:4700:3031::6815:57492026-05-03 → 2026-08-05 · 15 obs

○A2606:4700:3033::ac43:8e582026-05-03 → 2026-06-12 · 15 obs

●A2606:4700:3036::ac43:8e582026-08-05 → 2026-08-05 · 2 obs

○ 2026-06-16 23:18:44
● 2026-08-05 11:05:30

○A2a06:98c1:3120::2026-05-14 → 2026-06-16 · 13 obs

○A2a06:98c1:3121::2026-05-14 → 2026-06-16 · 13 obs

○A69.172.201.1072016-02-23 → 2016-11-29 · 5 obs

○ 2015-11-22 05:01:14
● 2016-02-23 11:10:24
● 2016-11-29 06:37:36
○ 2026-05-03 08:08:36
○ 2026-08-05 11:05:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, d0.org.afilias-nst.org, b2.org.afilias-nst.org	-
csrt.org	chris.ns.cloudflare.com, ashley.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.71

NS records: chris.ns.cloudflare.com, ashley.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for csrt.org (unsigned zone)

⏱️ Timing

Total: 543ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.87.73, 172.67.142.88`
AAAA	2	`2606:4700:3036::ac43:8e58, 2606:4700:3031::6815:5749`
NS	2	`ashley.ns.cloudflare.com, chris.ns.cloudflare.com`
MX	1	`csrt-org.mail.protection.outlook.com (pr`
TXT	2	`MS=ms23845316, v=spf1 a mx ip4:209.235.234.1 ip4:209.23`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ashley.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

www.csrt.org is delegated beneath csrt.org.

IP Addresses

csrt.org directs to four IP numbers, which are 104.21.87.73, 172.67.142.88, 2606:4700:3031::6815:5749 and 2606:4700:3036::ac43:8e58.

Among the host names that share IP numbers with csrt.org are www.sleazetone.com, mail.cjlts.com, www.virlan.com and two others.

Name Servers

csrt.org uses two name servers for its delegation: ashley.ns.cloudflare.com and chris.ns.cloudflare.com.

csrt.org has the same name server delegation as a number of other domains, such as tasimaliegitim.com, horoskop.com, idi4u.com and two more.

There is at least partial name server overlap between csrt.org and other domains — prstoddard.com, gujiakaisuo.com, hjqqs9526.xyz and two more among them.

These name servers are routinely deployed together with the name servers brodie.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname ashley.ns.cloudflare.com directs to 108.162.192.71, 172.64.32.71 and 173.245.58.71 along with 3 other IP addresses.

Hostname chris.ns.cloudflare.com directs to 108.162.193.85, 172.64.33.85 and 173.245.59.85 along with 3 other IP addresses.

Mail Servers

csrt.org routes its mail through a single mail server, csrt-org.mail.protection.outlook.com.

csrt-org.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.9.14, 52.101.9.21 and 52.101.41.183, along with 5 other.