mailsi.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

mailsi.dev

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:c91e🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:4232🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.66.50Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.201.30🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjermaine.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c9d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjermaine.ns.cloudflare.com
A2803:f800:50::6ca2:c39d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjermaine.ns.cloudflare.com
A2a06:98c1:50::ac40:239d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjermaine.ns.cloudflare.com
A108.162.195.157🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjermaine.ns.cloudflare.com
A162.159.44.157Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjermaine.ns.cloudflare.com
A172.64.35.157🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjermaine.ns.cloudflare.com
NSsummer.ns.cloudflare.com
A2606:4700:50::a29f:2609🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
A2803:f800:50::6ca2:c209🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsummer.ns.cloudflare.com
A2a06:98c1:50::ac40:2209🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsummer.ns.cloudflare.com
A108.162.194.9🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
A162.159.38.9Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
A172.64.34.9🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
MXmx.mailsi.dev ⭐
A3.1.56.146🇸🇬 Amazon3.0.0.0/15 EC2 SIN prefix
PTRmx.mailsi.dev
TXTgoogle-site-verification=jfomWIPc3_pq96owf2PErmUx8DPTEv7qXsDw5lJ2Veo
TXTgoogle-site-verification=xcP-Pa4dpb1-hZ9KZ92o0tM-QKmzTinhKad8jFBuumQ
TXTv=spf1 include:spf.mailsi.dev -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.66.50, 172.67.201.30
IPv6 hints2606:4700:3033::ac43:c91e, 2606:4700:3035::6815:4232
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=127, name=cloudflare-ech.com
SOAjermaine.ns.cloudflare.comdns@cloudflare.com serial=2417481929

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
🔒 HSTS Preload (+subdomains)

Subdomains

mx.mailsi.dev

Same first word

mailsi.app
mailsi.pl
mailsi.cz
mailsi.com
mailsi.io
mailsi.xyz
mailsi.online
mailsi.com.au
mailsi.biz
mailsi.blogspot.com
mailsi.de
mailsi.co.uk
mailsi.com.pk
mailsi.net
mailsi.dev

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islami.at
ismail.au
islami.cc
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silima.es
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simila.us
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Previous names

mailqa.dev
mailrack.dev
mailrail.dev
mailready.dev
mailrelay.dev
mailrow.dev
mails.dev
mailsafe.dev
mailscale.dev
mailscribe.dev
mailseals.dev
mailsend.dev
mailsense.dev
mailsentry.dev
mailserver.dev
mailsf.dev
mailsfor.dev
mailshell.dev
mailshield.dev
mailshot.dev

Next names

mailsift.dev
mailsink.dev
mailsite.dev
mailslot.dev
mailslurp.dev
mailsnail.dev
mailsoftly.dev
mailson.dev
mailspark.dev
mailspool.dev
mailspro.dev
mailstack.dev
mailstage.dev
mailstamp.dev
mailstar.dev
mailstash.dev
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mailster.dev
mailstore.dev
mailstorm.dev

DNS History

7 records (7 active, 0 former)

NSjermaine.ns.cloudflare.comsummer.ns.cloudflare.comMXmx.mailsi.devA104.21.66.50172.67.201.302606:4700:3033::ac43:c91e2606:4700:3035::6815:4232
●NSjermaine.ns.cloudflare.com2026-10-13 → 2026-10-24 · 2 obs
● 2026-10-13 16:25:26
● 2026-10-24 18:50:10
●NSsummer.ns.cloudflare.com2026-10-13 → 2026-10-24 · 2 obs
● 2026-10-13 16:25:26
● 2026-10-24 18:50:10
●MXmx.mailsi.dev2026-10-13 → 2026-10-24 · 2 obs
● 2026-10-13 20:19:02
● 2026-10-24 18:50:10
●A104.21.66.502026-10-18 → 2026-10-24 · 2 obs
● 2026-10-18 04:02:40
● 2026-10-24 18:50:10
●A172.67.201.302026-10-18 → 2026-10-24 · 2 obs
● 2026-10-18 04:02:40
● 2026-10-24 18:50:10
●A2606:4700:3033::ac43:c91e2026-10-18 → 2026-10-24 · 2 obs
● 2026-10-18 04:02:40
● 2026-10-24 18:50:10
●A2606:4700:3035::6815:42322026-10-18 → 2026-10-24 · 2 obs
● 2026-10-18 04:02:40
● 2026-10-24 18:50:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com...-
mailsi.devsummer.ns.cloudflare.com, jermaine.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.9

NS records: summer.ns.cloudflare.com, jermaine.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 869ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.201.30, 104.21.66.50
AAAA22606:4700:3035::6815:4232, 2606:4700:3033::ac43:c91e
NS2jermaine.ns.cloudflare.com, summer.ns.cloudflare.com
MX1mx.mailsi.dev (pri: 10)
TXT3google-site-verification=jfomWIPc3_pq96o, google-site-verification=xcP-Pa4dpb1-hZ9...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1jermaine.ns.cloudflare.com dns.cloudflar

Analysis

Hierarchy

mailsi.dev serves as the parent of mx.mailsi.dev.

IP Addresses

mailsi.dev has four IP addresses: 104.21.66.50, 172.67.201.30, 2606:4700:3033::ac43:c91e and 2606:4700:3035::6815:4232.

atlaselectricalonline.com, elegantspacedesign.shop, kkyp.com.cn and two other host names share IP numbers with mailsi.dev.

Name Servers

mailsi.dev uses two name servers for its delegation: jermaine.ns.cloudflare.com and summer.ns.cloudflare.com.

mailsi.dev uses the same name servers as several other domains — among them rootkit-01008142.workers.dev, wsad6666.pages.dev, aexsharedsevices-drive.workers.dev and two more.

mailsi.dev has at least partial name server overlap with other domains, such as pjx8.net, circuitmultimentor.site, celutionseducation.com and two others.

It is common to find these name servers paired with the name servers joyce.ns.cloudflare.com, colette.ns.cloudflare.com, andy.ns.cloudflare.com and micah.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

Hostname jermaine.ns.cloudflare.com directs to 108.162.195.157, 162.159.44.157 and 172.64.35.157 along with 3 other IP addresses.

Hostname summer.ns.cloudflare.com directs to 108.162.194.9, 162.159.38.9 and 172.64.34.9 along with 3 other IP addresses.

Mail Servers

Mail for mailsi.dev is handled by a single mail server, mx.mailsi.dev.

mx.mailsi.dev directs to just one IP number, 3.1.56.146.