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
PTRsimone.ns.cloudflare.com
A162.159.38.26Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsimone.ns.cloudflare.com
A172.64.34.26🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsimone.ns.cloudflare.com
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=2405868552

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: #343,285
🔒 HSTS Preload (+subdomains)

Subdomains

mail.cert.dev

Same first word

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ectr.ru

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 → 2026-06-05 · 2 obs
● 2026-03-21 15:05:54
● 2026-06-05 08:16:28
●NSsimone.ns.cloudflare.com2026-03-21 → 2026-06-05 · 2 obs
● 2026-03-21 15:05:54
● 2026-06-05 08:16:28
●MXmail.cert.dev2026-03-21 → 2026-06-05 · 2 obs
● 2026-03-21 15:05:54
● 2026-06-05 08:16:28
●A144.31.220.2262026-05-28 → 2026-06-05 · 2 obs
● 2026-05-28 19:54:20
● 2026-06-05 08:16:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
cert.devdean.ns.cloudflare.com, simone.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.26

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 768ms | 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

mail.cert.dev is a subdomain of cert.dev.

IP Addresses

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

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, convite-bradescocardonline.com, fipchemicals.it 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 alongside the name servers diva.ns.cloudflare.com and jasper.ns.cloudflare.com.

Host names with 6 IP numbers:

dean.ns.cloudflare.com resolves to 108.162.193.153, 172.64.33.153 and 173.245.59.153, along with three other IP addresses.

simone.ns.cloudflare.com resolves to 108.162.194.26, 162.159.38.26 and 172.64.34.26, along with three other 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.