cert.work - dns.ninja

cert.work

DNSSEC⚠️ Not signed
A2606:4700:3037::6815:4c75🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:c1d7🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.76.117Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.193.215🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdiva.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a61🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdiva.ns.cloudflare.com
A2803:f800:50::6ca2:c061🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdiva.ns.cloudflare.com
A2a06:98c1:50::ac40:2061🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdiva.ns.cloudflare.com
A108.162.192.97🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdiva.ns.cloudflare.com
A172.64.32.97🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdiva.ns.cloudflare.com
A173.245.58.97🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdiva.ns.cloudflare.com
NSelliott.ns.cloudflare.com
A2606:4700:58::a29f:2ce4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelliott.ns.cloudflare.com
A2803:f800:50::6ca2:c3e4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRelliott.ns.cloudflare.com
A2a06:98c1:50::ac40:23e4🇺🇸 Cloudflare2a06:98c1:50::/45
PTRelliott.ns.cloudflare.com
A108.162.195.228🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelliott.ns.cloudflare.com
A162.159.44.228Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelliott.ns.cloudflare.com
A172.64.35.228🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelliott.ns.cloudflare.com
TXTgoogle-site-verification=qUMjuMhLH5zeUgFGsQXJTWEeyTBU1Vt2OWG7UStK2Ak
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.76.117, 172.67.193.215
IPv6 hints2606:4700:3037::6815:4c75, 2606:4700:3037::ac43:c1d7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=134, name=cloudflare-ech.com
SOAdiva.ns.cloudflare.comdns@cloudflare.com serial=2410118783

work

DNSSEC🔒 Signed (DS record present)
NSa.nic.work ⭐
NSb.nic.work
NSc.nic.work
NSx.nic.work
NSy.nic.work
NSz.nic.work
SOAa.nic.workadmin@tldns.godaddy serial=1784870167

Same first word

cert.nyc
cert.gov.py
cert.gov.pl
cert.gov.ru
cert.cw
cert.md
cert.lv
cert.school
cert.company
cert.toscana.it
cert.gov.ge
cert.cx
cert.it
cert.ca
cert.org.tw
cert.coop
cert.org.pl
cert.ro
cert.be
cert.dk
cert.im
cert.lk
cert.ac.in
cert.hr
cert.pl
cert.ge
cert.sd
cert.management
cert.org.cn
cert.gov.sa
cert.org.ro
cert.cl
cert.wtf
cert.pk
cert.ru
cert.fyi
cert.nrw
cert.me
cert.tj
cert.info
cert.gov.kg
cert.bg
cert.com.au
cert.edu.mx
cert.lt
cert.am
cert.govt.nz
cert.se
cert.hk
cert.gov.ua
cert.no
cert.biz
cert.gov.ly
cert.gov.om
cert.gov.tm
cert.appspot.com
cert.to
cert.si
cert.center
cert.net.nz
cert.org.in
cert.kr
cert.work
cert.gov.lv
cert.tech
cert.ee
cert.is
cert.gl
cert.cr
cert.mobi
cert.cc
cert.kg
cert.br
cert.ist
cert.gt
cert.by
cert.az
cert.tips
cert.org
cert.ir
cert.co
cert.mil
cert.hu
cert.edu.au
cert.ae
cert.gov.az
cert.gov.au
cert.ac.il
cert.fr
cert.gub.uy
cert.gov.ng
cert.tel
cert.gov.to
cert.eu
cert.ac.cn
cert.care
cert.id
cert.org.hk
cert.gov.lk
cert.pa
cert.tn
cert.kz
cert.dyndns.tv
cert.com.mx
cert.com
cert.pt
cert.ma
cert.mincom.tn
cert.at
cert.cn
cert.sk
cert.fi
cert.ie
cert.dynalias.com
cert.co.uk
cert.uy

Similar names

ertc.com
rcet.com
cret.co
rtec.be
trec.co.at
rtec.se
ertc.ca
tecr.net
etcr.com
rtce.fr
rect.io
rcet.net
retc.ac.th
cret.fr
ertc.es
trec.info
rect.ir
rect.ag
cter.com
trec.eu
ectr.eu
ertc.eu
trce.in
trec.at
tcer.gob.ar
crte.com.cn
etcr.eu
tecr.co.uk
trec.com.tr
rtec.info
rtce.org
ertc.fr
trec.center
rtec.ru
trec.me
rcet.org.in
rcet.com.my
retc.ru
cert.rs
erct.de
ecrt.com
cert.gov.iq
cert.dev
trec.online
cert.uz
rtec.com.br
etcr.com.br
ecrt.net
cert.eus
rcet.com.cn
terc.net
erct.com.br
rect.cn
tcre.cn
cert.axa
retc.eu
trec.co
erct.net
cert.or.id
trec.site
rcte.com.cn
cert.cz
trec.org.tw
cert.net
cert.zone
cert.co.in
cert.ren
ectr.com
cret.ru
trec.in
cetr.no
cter.pl
erct.com
cetr.org
cret.ca

DNS History

17 records (6 active, 11 former)

2017201820192020202120222023202420252026NSdiva.ns.cloudflare.comelliott.ns.cloudflare.comns63.domaincontrol.comns64.domaincontrol.comMXmailstore1.secureserver.netsmtp.secureserver.netA104.21.76.117172.67.193.2152606:4700:3037::6815:4c752606:4700:3037::ac43:c1d7188.114.96.0188.114.97.02606:4700:130:436c:6f75:6466:6c61:72652606:4700:3032::ac43:c1d72a06:98c1:3120::2a06:98c1:3121::50.63.202.35
●NSdiva.ns.cloudflare.com2026-02-27 → 2026-07-24 · 3 obs
○ 2018-01-12 05:14:46
● 2026-02-27 06:27:14
● 2026-07-24 05:33:46
●NSelliott.ns.cloudflare.com2026-02-27 → 2026-07-24 · 3 obs
○ 2018-01-12 05:14:46
● 2026-02-27 06:27:14
● 2026-07-24 05:33:46
○NSns63.domaincontrol.com2016-12-13 → 2018-01-12 · 4 obs
● 2016-12-13 02:13:10
● 2018-01-12 05:14:46
○ 2026-02-27 06:27:14
○ 2026-07-24 05:33:46
○NSns64.domaincontrol.com2016-12-13 → 2018-01-12 · 4 obs
● 2016-12-13 02:13:10
● 2018-01-12 05:14:46
○ 2026-02-27 06:27:14
○ 2026-07-24 05:33:46
○MXmailstore1.secureserver.net2016-12-13 → 2018-01-12 · 4 obs
● 2016-12-13 02:13:10
● 2018-01-12 05:14:46
○ 2026-02-27 06:27:14
○ 2026-07-24 05:33:46
○MXsmtp.secureserver.net2016-12-13 → 2018-01-12 · 4 obs
● 2016-12-13 02:13:10
● 2018-01-12 05:14:46
○ 2026-02-27 06:27:14
○ 2026-07-24 05:33:46
●A104.21.76.1172026-02-27 → 2026-07-24 · 11 obs
○ 2018-01-12 05:14:46
● 2026-02-27 06:27:14
● 2026-03-27 20:38:50
○ 2026-04-02 07:40:48
● 2026-04-02 12:12:18
● 2026-05-12 04:58:54
○ 2026-05-13 12:36:40
● 2026-05-25 09:03:28
● 2026-06-13 05:28:06
○ 2026-06-29 16:44:58
● 2026-07-24 05:33:46
●A172.67.193.2152026-02-27 → 2026-07-24 · 11 obs
○ 2018-01-12 05:14:46
● 2026-02-27 06:27:14
● 2026-03-27 20:38:50
○ 2026-04-02 07:40:48
● 2026-04-02 12:12:18
● 2026-05-12 04:58:54
○ 2026-05-13 12:36:40
● 2026-05-25 09:03:28
● 2026-06-13 05:28:06
○ 2026-06-29 16:44:58
● 2026-07-24 05:33:46
○A188.114.96.02026-04-02 → 2026-06-29 · 10 obs
○ 2026-02-27 06:27:14
○ 2026-03-27 20:38:50
● 2026-04-02 07:40:48
○ 2026-04-02 12:12:18
○ 2026-05-12 04:58:54
● 2026-05-13 12:36:40
○ 2026-05-25 09:03:28
○ 2026-06-13 05:28:06
● 2026-06-29 16:44:58
○ 2026-07-24 05:33:46
○A188.114.97.02026-04-02 → 2026-06-29 · 10 obs
○ 2026-02-27 06:27:14
○ 2026-03-27 20:38:50
● 2026-04-02 07:40:48
○ 2026-04-02 12:12:18
○ 2026-05-12 04:58:54
● 2026-05-13 12:36:40
○ 2026-05-25 09:03:28
○ 2026-06-13 05:28:06
● 2026-06-29 16:44:58
○ 2026-07-24 05:33:46
○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-04 → 2026-03-04 · 4 obs
○ 2026-03-01 00:54:08
● 2026-03-04 06:23:56
○ 2026-03-25 15:35:34
○ 2026-07-24 05:33:46
○A2606:4700:3032::ac43:c1d72026-02-27 → 2026-06-13 · 17 obs
○ 2018-01-12 05:14:46
● 2026-02-27 06:27:14
● 2026-03-01 00:54:08
○ 2026-03-04 06:23:56
● 2026-03-25 15:35:34
● 2026-03-27 20:38:50
○ 2026-04-02 07:40:48
● 2026-04-02 12:12:18
● 2026-04-21 10:27:28
○ 2026-04-22 07:38:24
● 2026-04-23 19:59:24
● 2026-05-12 04:58:54
○ 2026-05-13 12:36:40
● 2026-05-25 09:03:28
● 2026-06-13 05:28:06
○ 2026-06-29 16:44:58
○ 2026-07-24 05:33:46
●A2606:4700:3037::6815:4c752026-02-27 → 2026-07-24 · 17 obs
○ 2018-01-12 05:14:46
● 2026-02-27 06:27:14
● 2026-03-01 00:54:08
○ 2026-03-04 06:23:56
● 2026-03-25 15:35:34
● 2026-03-27 20:38:50
○ 2026-04-02 07:40:48
● 2026-04-02 12:12:18
● 2026-04-21 10:27:28
○ 2026-04-22 07:38:24
● 2026-04-23 19:59:24
● 2026-05-12 04:58:54
○ 2026-05-13 12:36:40
● 2026-05-25 09:03:28
● 2026-06-13 05:28:06
○ 2026-06-29 16:44:58
● 2026-07-24 05:33:46
●A2606:4700:3037::ac43:c1d72026-07-24 → 2026-07-24 · 2 obs
○ 2026-06-29 16:44:58
● 2026-07-24 05:33:46
○A2a06:98c1:3120::2026-04-02 → 2026-06-29 · 13 obs
○ 2026-02-27 06:27:14
○ 2026-03-27 20:38:50
● 2026-04-02 07:40:48
○ 2026-04-02 12:12:18
○ 2026-04-21 10:27:28
● 2026-04-22 07:38:24
○ 2026-04-23 19:59:24
○ 2026-05-12 04:58:54
● 2026-05-13 12:36:40
○ 2026-05-25 09:03:28
○ 2026-06-13 05:28:06
● 2026-06-29 16:44:58
○ 2026-07-24 05:33:46
○A2a06:98c1:3121::2026-04-02 → 2026-06-29 · 13 obs
○ 2026-02-27 06:27:14
○ 2026-03-27 20:38:50
● 2026-04-02 07:40:48
○ 2026-04-02 12:12:18
○ 2026-04-21 10:27:28
● 2026-04-22 07:38:24
○ 2026-04-23 19:59:24
○ 2026-05-12 04:58:54
● 2026-05-13 12:36:40
○ 2026-05-25 09:03:28
○ 2026-06-13 05:28:06
● 2026-06-29 16:44:58
○ 2026-07-24 05:33:46
○A50.63.202.352016-12-13 → 2018-01-12 · 4 obs
● 2016-12-13 02:13:10
● 2018-01-12 05:14:46
○ 2026-02-27 06:27:14
○ 2026-07-24 05:33:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
worka.nic.work, b.nic.work, c.nic.work, x.nic.work...12 records
cert.workdiva.ns.cloudflare.com, elliott.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.228

NS records: diva.ns.cloudflare.com, elliott.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cert.work (unsigned zone)

⏱️ Timing

Total: 457ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.193.215, 104.21.76.117
AAAA22606:4700:3037::ac43:c1d7, 2606:4700:3037::6815:4c75
NS2diva.ns.cloudflare.com, elliott.ns.cloudflare.com
TXT1google-site-verification=qUMjuMhLH5zeUgF
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1diva.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.work, a.nic.work, b.nic.work...)

Analysis

IP Addresses

cert.work resolves to four IP addresses: 104.21.76.117, 172.67.193.215, 2606:4700:3037::6815:4c75 and 2606:4700:3037::ac43:c1d7.

Two other host names, along with biksak.com, cookspeed.com and www.nowhere-else.org, also share IP numbers with cert.work.

Name Servers

cert.work uses two name servers for its delegation: diva.ns.cloudflare.com and elliott.ns.cloudflare.com.

cert.work shares its NS records with other domains, for example slachhydratecs.in, travestied.com, flowerpanties.com and two others.

cert.work has at least partial name server overlap with other domains, such as gxqzm.com, 0-fun.com, halsoguiden.se and two others.

It is common to see these name servers used together with name servers emma.ns.cloudflare.com and dean.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname diva.ns.cloudflare.com directs to 108.162.192.97, 172.64.32.97 and 173.245.58.97 along with 3 other IP addresses.

Hostname elliott.ns.cloudflare.com directs to 108.162.195.228, 162.159.44.228 and 172.64.35.228 along with 3 other IP addresses.