workstud.io - dns.ninja

workstud.io

DNSSEC⚠️ Not signed
A133.125.148.8🇯🇵 SAKURA-A133.125.0.0/16 (ISHIKARI) SAKURA Internet // EAST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan
NSns1.mixhost.jp
A162.159.24.192Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.mixhost.jp
A162.159.25.9Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns3.mixhost.jp ⚠️ Not in zone NS records
A162.159.24.192Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns4.mixhost.jp ⚠️ Not in zone NS records
A162.159.25.9Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns5.mixhost.jp ⚠️ Not in zone NS records
A162.159.24.192Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
MXsmtp.google.com
A2607:f8b0:4004:c17::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbl-in-f26.1e100.net
A2607:f8b0:4004:c23::1a🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadrs-in-f26.1e100.net
A2607:f8b0:4004:c23::1b🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadrs-in-f27.1e100.net
A2607:f8b0:4004:c27::1b🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadsk-in-f27.1e100.net
A142.251.16.26🇺🇸 Google142.251.16.0/24
PTRbl-in-f26.1e100.net
A142.251.167.27🇺🇸 Google142.251.167.0/24
A172.253.139.27🇺🇸 Google172.253.139.0/24
PTRyuiadsk-in-f27.1e100.net
A192.178.155.26🇺🇸 Google192.178.155.0/24
A192.178.155.27🇺🇸 Google192.178.155.0/24
TXTv=spf1 ip4:133.125.148.8 ip4:158.101.91.62 ip4:150.95.55.6 +a +mx ~all
SOAns1.mixhost.jpsystem@mixhost.info 2026-04-30 #6

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1784223417

Subdomains

Same first word

Similar names

DNS History

7 records (7 active, 0 former)

NSns1.mixhost.jpns2.mixhost.jpns3.mixhost.jpns4.mixhost.jpns5.mixhost.jpMXsmtp.google.comA133.125.148.8
NSns1.mixhost.jp2026-07-07 → 2026-07-16 · 2 obs
● 2026-07-07 22:51:46
● 2026-07-16 17:48:58
NSns2.mixhost.jp2026-07-07 → 2026-07-16 · 2 obs
● 2026-07-07 22:51:46
● 2026-07-16 17:48:58
NSns3.mixhost.jp2026-07-07 → 2026-07-16 · 2 obs
● 2026-07-07 22:51:46
● 2026-07-16 17:48:58
NSns4.mixhost.jp2026-07-07 → 2026-07-16 · 2 obs
● 2026-07-07 22:51:46
● 2026-07-16 17:48:58
NSns5.mixhost.jp2026-07-07 → 2026-07-16 · 2 obs
● 2026-07-07 22:51:46
● 2026-07-16 17:48:58
MXsmtp.google.com2026-07-07 → 2026-07-16 · 2 obs
● 2026-07-07 22:51:46
● 2026-07-16 17:48:58
A133.125.148.82026-07-07 → 2026-07-16 · 2 obs
● 2026-07-07 22:51:46
● 2026-07-16 17:48:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ioa0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io-
workstud.ions5.mixhost.jp, ns4.mixhost.jp, ns3.mixhost.jp, ns2.mixhost.jp...-

✅ Authoritative Response

Server:162.159.24.192

NS records: ns5.mixhost.jp, ns4.mixhost.jp, ns3.mixhost.jp, ns2.mixhost.jp, ns1.mixhost.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workstud.io (unsigned zone)

⏱️ Timing

Total: 1084ms | Queries: -

📄 Records

TypeCountSample Data
A1133.125.148.8
NS2ns1.mixhost.jp, ns2.mixhost.jp
MX1smtp.google.com (pri: 1)
TXT1v=spf1 ip4:133.125.148.8 ip4:158.101.91.
SOA1ns1.mixhost.jp system.mixhost.info

Analysis

Hierarchy

workstud.io serves as the parent of ns.workstud.io and ns2.workstud.io.

IP Addresses

workstud.io has exactly one IP address — 133.125.148.8.

pierrot.biz, adultsite.jp, funeralboard.com plus two other host names have IP numbers in common with workstud.io.

Name Servers

Five name servers handle delegation for workstud.io: ns1.mixhost.jp, ns2.mixhost.jp, ns3.mixhost.jp and two others.

workstud.io partially shares its NS delegation with several other domains, including erogetaikenban.jp, diim.jp, catfight.pink and two others.

These name servers are regularly seen alongside ns4.mixhost.jp and ns5.mixhost.jp as name servers.

Host names resolving to a single IP address:

ns1.mixhost.jp has the IP address 162.159.24.192.

ns2.mixhost.jp has the IP address 162.159.25.9.

ns3.mixhost.jp has the IP address 162.159.24.192.

ns4.mixhost.jp has the IP address 162.159.25.9.

ns5.mixhost.jp has the IP address 162.159.24.192.

Three host names point to 162.159.24.192: ns1.mixhost.jp, ns3.mixhost.jp and ns5.mixhost.jp.

Both ns2.mixhost.jp and ns4.mixhost.jp resolve to 162.159.25.9 IP addresses each.

Mail Servers

workstud.io uses one mail server — smtp.google.com.

The mail server setup of workstud.io matches that of other domains such as ridagosa.com, asuris.net, beimaginary.com and two others.

At least some of the mail servers used by workstud.io are shared with other domains: aaaroyal.me, villagecavehouse.com, libero.edu.vn and two others among them.

It is common to find these mail servers paired with the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com, as well as two others.

smtp.google.com has 9 IP addresses: 142.251.16.26, 142.251.167.27, 172.253.139.27 plus 6 more.