csrt.org - dns.ninja

csrt.org

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:5749🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:8e58🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.87.73Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.142.88🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSashley.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a47🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRashley.ns.cloudflare.com
A2803:f800:50::6ca2:c047🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRashley.ns.cloudflare.com
A2a06:98c1:50::ac40:2047🇺🇸 Cloudflare2a06:98c1:50::/45
PTRashley.ns.cloudflare.com
A108.162.192.71🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRashley.ns.cloudflare.com
A172.64.32.71🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRashley.ns.cloudflare.com
A173.245.58.71🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRashley.ns.cloudflare.com
NSchris.ns.cloudflare.com
A2606:4700:58::adf5:3b55🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchris.ns.cloudflare.com
A2803:f800:50::6ca2:c155🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRchris.ns.cloudflare.com
A2a06:98c1:50::ac40:2155🇺🇸 Cloudflare2a06:98c1:50::/45
PTRchris.ns.cloudflare.com
A108.162.193.85🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchris.ns.cloudflare.com
A172.64.33.85🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchris.ns.cloudflare.com
A173.245.59.85🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchris.ns.cloudflare.com
MXcsrt-org.mail.protection.outlook.com ⭐
A2a01:111:f403:c802::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-cy4pr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:c902::5🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-sj2pr05cu00505.inbound.protection.outlook.com
A2a01:111:f403:c902::16🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-byapr04cu00306.inbound.protection.outlook.com
A2a01:111:f403:f90a::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-bn6pr02cu00300.inbound.protection.outlook.com
A52.101.9.2🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-mn2pr02cu00202.inbound.protection.outlook.com
A52.101.40.6🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-cy1pr03cu00106.inbound.protection.outlook.com
A52.101.40.24🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-cy5pr05cu00100.inbound.protection.outlook.com
A52.101.41.54🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sj2pr05cu00506.inbound.protection.outlook.com
TXTMS=ms23845316
TXTv=spf1 a mx ip4:209.235.234.1 ip4:209.235.234.2 ip4:65.115.93.43/29 include:...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.87.73, 172.67.142.88
IPv6 hints2606:4700:3031::6815:5749, 2606:4700:3036::ac43:8e58
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=64, name=cloudflare-ech.com
SOAashley.ns.cloudflare.comdns@cloudflare.com serial=2410688456

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=1785933571
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)

20162017201820192020202120222023202420252026NSashley.ns.cloudflare.comchris.ns.cloudflare.comdns1.cloudns.netdns2.cloudns.netdns5.cloudns.netdns6.cloudns.netns-1376.awsdns-44.orgns-1770.awsdns-29.co.ukns-32.awsdns-04.comns-976.awsdns-58.netns45.worldnic.comns46.worldnic.comMXcsrt-org.mail.protection.outlook.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comA104.21.87.73172.67.142.882606:4700:3031::6815:57492606:4700:3036::ac43:8e58144.202.110.114188.114.96.0188.114.97.0199.116.77.192606:4700:3033::ac43:8e582a06:98c1:3120::2a06:98c1:3121::69.172.201.107
●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 12:59:46
●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 12:59:46
○NSdns1.cloudns.net2026-05-03 → 2026-08-05 · 2 obs
○ 2026-05-03 08:08:36
○ 2026-08-05 12:59:46
○NSdns2.cloudns.net2026-05-03 → 2026-08-05 · 2 obs
○ 2026-05-03 08:08:36
○ 2026-08-05 12:59:46
○NSdns5.cloudns.net2026-05-03 → 2026-08-05 · 2 obs
○ 2026-05-03 08:08:36
○ 2026-08-05 12:59:46
○NSdns6.cloudns.net2026-05-03 → 2026-08-05 · 2 obs
○ 2026-05-03 08:08:36
○ 2026-08-05 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
○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 12:59:46
●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 12:59:46
●A104.21.87.732026-05-03 → 2026-08-05 · 16 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
● 2026-08-05 12:59:46
○A144.202.110.1142026-05-03 → 2026-08-05 · 2 obs
○ 2026-05-03 08:08:36
○ 2026-08-05 12:59:46
●A172.67.142.882026-05-03 → 2026-08-05 · 16 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
● 2026-08-05 12:59:46
○A188.114.96.02026-05-14 → 2026-06-16 · 14 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
○ 2026-08-05 12:59:46
○A188.114.97.02026-05-14 → 2026-06-16 · 14 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
○ 2026-08-05 12:59:46
○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 12:59:46
●A2606:4700:3031::6815:57492026-05-03 → 2026-08-05 · 16 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
● 2026-08-05 12:59:46
○A2606:4700:3033::ac43:8e582026-05-03 → 2026-06-12 · 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 12:59:46
●A2606:4700:3036::ac43:8e582026-08-05 → 2026-08-05 · 3 obs
○ 2026-06-16 23:18:44
● 2026-08-05 11:05:30
● 2026-08-05 12:59:46
○A2a06:98c1:3120::2026-05-14 → 2026-06-16 · 14 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
○ 2026-08-05 12:59:46
○A2a06:98c1:3121::2026-05-14 → 2026-06-16 · 14 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
○ 2026-08-05 12:59:46
○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 12:59:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, d0.org.afilias-nst.org, b2.org.afilias-nst.org-
csrt.orgchris.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: 1271ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.87.73, 172.67.142.88
AAAA22606:4700:3036::ac43:8e58, 2606:4700:3031::6815:5749
NS2ashley.ns.cloudflare.com, chris.ns.cloudflare.com
MX1csrt-org.mail.protection.outlook.com (pr
TXT2MS=ms23845316, v=spf1 a mx ip4:209.235.234.1 ip4:209.23
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1ashley.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 52.101.9.2, 52.101.40.6 and 52.101.40.24, along with 5 other.