sim.io - robtex.com

sim.io

DNSSEC⚠️ Not signed
A2606:4700:130:436c:6f75:6466:6c61:7265🇺🇸 Cloudflare2606:4700:130::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.79.73Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ⚠ Not in HTTPS hints
A172.67.169.57🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ⚠ Not in HTTPS hints
NScraig.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2cc0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcraig.ns.cloudflare.com
A2803:f800:50::6ca2:c3c0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcraig.ns.cloudflare.com
A2a06:98c1:50::ac40:23c0🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcraig.ns.cloudflare.com
A108.162.195.192🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcraig.ns.cloudflare.com
A162.159.44.192Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcraig.ns.cloudflare.com
A172.64.35.192🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcraig.ns.cloudflare.com
NSlara.ns.cloudflare.com
A2606:4700:50::adf5:3a80🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlara.ns.cloudflare.com
A2803:f800:50::6ca2:c080🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlara.ns.cloudflare.com
A2a06:98c1:50::ac40:2080🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlara.ns.cloudflare.com
A108.162.192.128🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlara.ns.cloudflare.com
A172.64.32.128🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlara.ns.cloudflare.com
A173.245.58.128🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlara.ns.cloudflare.com
MXroute1.mx.cloudflare.net ⭐
A2606:4700:f5::b🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::c🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::d🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.11Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.12Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.13Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
MXroute3.mx.cloudflare.net(73)
A2606:4700:f5::11🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::12🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::13🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.23Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.24Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.25Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
MXroute2.mx.cloudflare.net(75)
A2606:4700:f5::e🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::f🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::10🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.17Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.18Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.19Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
TXTv=spf1 include:_spf.mx.cloudflare.net ~all
HTTPSHTTP/3, HTTP/2 ⚠ 2 unhinted📌 1 extra
IPv4172.64.80.1
IPv62606:4700:130:436c:6f75:6466:6c61:7265
SOAcraig.ns.cloudflare.comdns@cloudflare.com serial=2397580296

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐ 🔒
NSa2.nic.io 🔒
NSb0.nic.io 🔒
NSc0.nic.io 🔒
SOAa0.nic.iohostmaster@donuts.email serial=1771291657

Same first word

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DNS History

10 records (8 active, 2 former)

NScraig.ns.cloudflare.comlara.ns.cloudflare.comMXroute1.mx.cloudflare.netroute2.mx.cloudflare.netroute3.mx.cloudflare.netA104.21.79.73172.67.169.572606:4700:130:436c:6f75:6466:6c61:72652606:4700:3033::6815:4f492606:4700:3036::ac43:a939
●NScraig.ns.cloudflare.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 03:05:26
● 2026-02-28 23:46:40
●NSlara.ns.cloudflare.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 03:05:26
● 2026-02-28 23:46:40
●MXroute1.mx.cloudflare.net2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 03:05:26
● 2026-02-28 23:46:40
●MXroute2.mx.cloudflare.net2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 03:05:26
● 2026-02-28 23:46:40
●MXroute3.mx.cloudflare.net2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 03:05:26
● 2026-02-28 23:46:40
●A104.21.79.732026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 03:05:26
● 2026-02-28 23:46:40
●A172.67.169.572026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 03:05:26
● 2026-02-28 23:46:40
●A2606:4700:130:436c:6f75:6466:6c61:72652026-02-28 → 2026-02-28 · 2 obs
○ 2026-02-28 03:05:26
● 2026-02-28 23:46:40
○A2606:4700:3033::6815:4f492026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 03:05:26
○ 2026-02-28 23:46:40
○A2606:4700:3036::ac43:a9392026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 03:05:26
○ 2026-02-28 23:46:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ioa0.nic.io, b0.nic.io, a2.nic.io, c0.nic.io8 records
sim.iolara.ns.cloudflare.com, craig.ns.cloudflare.com-

✅ Authoritative Response

Server: 173.245.58.128

NS records: lara.ns.cloudflare.com, craig.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sim.io (unsigned zone)

⏱️ Timing

Total: 861ms | Queries: -

📄 Records

TypeCountSample Data
A1172.64.80.1
AAAA12606:4700:130:436c:6f75:6466:6c61:7265
NS2craig.ns.cloudflare.com, lara.ns.cloudflare.com
MX3route1.mx.cloudflare.net (pri: 63), route3.mx.cloudflare.net (pri: 73)...
TXT1v=spf1 include:_spf.mx.cloudflare.net ~a
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1craig.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (c0.nic.io, b0.nic.io, a2.nic.io...)

Analysis

IP Addresses

sim.io points to three IP numbers: 2606:4700:130:436c:6f75:6466:6c61:7265, 104.21.79.73 and 172.67.169.57.

Other host names such as www.dirtygranny.net, myyl.net, mail.churnet-valley-railway.co.uk, www.volleybalshop.nl and filmrssfmv.oooport.ru share IPs with sim.io.

Name Servers

sim.io is delegated to two name servers: craig.ns.cloudflare.com and lara.ns.cloudflare.com.

sim.io shares the same name server setup as 61300.com, 68100.com, 35200.com, 29200.com and 85200.com.

sim.io at least partially shares name servers with other domains, for instance 0vvv0.com, genson.com, gamasonic.com, lignesdefuite.fr and elite-network.com.

These name servers are commonly used with jessica.ns.cloudflare.com and jim.ns.cloudflare.com.

Host names with six IP numbers:

craig.ns.cloudflare.com points to 2606:4700:58::a29f:2cc0, 2803:f800:50::6ca2:c3c0, 2a06:98c1:50::ac40:23c0, 108.162.195.192, 162.159.44.192 and 172.64.35.192.

lara.ns.cloudflare.com points to 2606:4700:50::adf5:3a80, 2803:f800:50::6ca2:c080, 2a06:98c1:50::ac40:2080, 108.162.192.128, 172.64.32.128 and 173.245.58.128.

Mail Servers

Three mail servers handle sim.io: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

sim.io shares at least partially some mail servers with other domains, including ltidata.com, ayudaelectronica.com, southern-specialties.com, geri-indai.lt and planrenove.info.

Host names with six IP numbers:

route1.mx.cloudflare.net points to: 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13.

route2.mx.cloudflare.net points to: 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19.

route3.mx.cloudflare.net points to: 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25.