cert.dev - dns.ninja

cert.dev

DNSSEC🔒 Signed (DS record present)
A144.31.220.226🇺🇸 ENETWORKS128.0.0.0/2
PTRde0.cert.dev
NSdean.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b99🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
A2803:f800:50::6ca2:c199🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdean.ns.cloudflare.com
A2a06:98c1:50::ac40:2199🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdean.ns.cloudflare.com
A108.162.193.153🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
A172.64.33.153🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
A173.245.59.153🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
NSsimone.ns.cloudflare.com
A2606:4700:50::a29f:261a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsimone.ns.cloudflare.com
A2803:f800:50::6ca2:c21a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsimone.ns.cloudflare.com
A2a06:98c1:50::ac40:221a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsimone.ns.cloudflare.com
A108.162.194.26🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A162.159.38.26Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.34.26🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
MXmail.cert.dev ⭐
A2a03:6f00:a::1:4004🇷🇺 TimeWeb-AS2a03:6f00:a::/48
PTRmail.cert.dev
A81.19.135.20🇷🇺 TimeWeb-AS81.19.135.0/24
PTRmail.cert.dev
TXTv=spf1 mx -all
SOAdean.ns.cloudflare.comdns@cloudflare.com serial=2410282133

dev

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com ⭐
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1
📈 Tranco rank: #543,560
🔒 HSTS Preload (+subdomains)

Subdomains

mail.cert.dev
de0.cert.dev

Same first word

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trec.co
erct.net
trec.site
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trec.org.tw
ectr.com
cret.ru
trec.in
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rect.co.kr
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ectr.info
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ertc.com.tw
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etrc.com.vn
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erct.ru
trec.jp
ertc.us
terc.cn
tecr.de
trec.co.nz
erct.eu
ectr.cn
cret.nl
ertc.me

DNS History

4 records (4 active, 0 former)

NSdean.ns.cloudflare.comsimone.ns.cloudflare.comMXmail.cert.devA144.31.220.226
●NSdean.ns.cloudflare.com2026-03-21 → 2026-07-23 · 2 obs
● 2026-03-21 15:05:54
● 2026-07-23 13:25:28
●NSsimone.ns.cloudflare.com2026-03-21 → 2026-07-23 · 2 obs
● 2026-03-21 15:05:54
● 2026-07-23 13:25:28
●MXmail.cert.dev2026-03-21 → 2026-07-23 · 2 obs
● 2026-03-21 15:05:54
● 2026-07-23 13:25:28
●A144.31.220.2262026-05-28 → 2026-07-23 · 2 obs
● 2026-05-28 19:54:20
● 2026-07-23 13:25:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
cert.devsimone.ns.cloudflare.com, dean.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.153

NS records: simone.ns.cloudflare.com, dean.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 940ms | Queries: -

📄 Records

TypeCountSample Data
A1144.31.220.226
NS2dean.ns.cloudflare.com, simone.ns.cloudflare.com
MX1mail.cert.dev (pri: 10)
TXT1v=spf1 mx -all
SOA1dean.ns.cloudflare.com dns.cloudflare.co

Analysis

Hierarchy

cert.dev is the parent domain of mail.cert.dev and de0.cert.dev.

IP Addresses

cert.dev points to a single IP number: 144.31.220.226.

Among the host names that share IP numbers with cert.dev is de0.cert.dev, as one example.

Name Servers

The NS records for cert.dev delegate to dean.ns.cloudflare.com and simone.ns.cloudflare.com.

cert.dev shares its name server setup with other domains, including vienxaydungdatviet.edu.vn, osavi.com, convite-bradescocardonline.com and two others.

The name servers of cert.dev overlap at least partially with those of other domains — among them someplayoffplay.click, ilrweb.ie, htmlenc.com and two more.

These name servers commonly appear in combination with the name servers diva.ns.cloudflare.com.

Host names with 6 IP numbers:

dean.ns.cloudflare.com maps to 108.162.193.153, 172.64.33.153, 173.245.59.153 and 3 additional IP addresses.

simone.ns.cloudflare.com maps to 108.162.194.26, 162.159.38.26, 172.64.34.26 and 3 additional IP addresses.

Mail Servers

cert.dev has one mail server: mail.cert.dev.

mail.cert.dev resolves to two IP numbers — 81.19.135.20 and 2a03:6f00:a::1:4004.