write.siu.edu - robtex.com

write.siu.edu

DNSSEC⚠️ Not signed
A131.230.21.130🇺🇸 AS15119131.230.0.0/16
PTRplesk-sites1.web.siu.edu

siu.edu

DNSSEC⚠️ Not signed
A131.230.21.130🇺🇸 AS15119131.230.0.0/16
NSns1.siu.edu ⭐
NSns3.siu.edu
NSns4.siu.edu
NSns5.siu.edu
MXsiu-edu.mail.protection.outlook.com ⭐
TXTe2ma-verification=19bbb
TXTv=spf1 a mx ip4:131.230.0.0/16 include:spf.protection.outlook.com include:sen...
TXTHoxTnhzvBYZ82oYiTjotA/8BUKC/NJEHjQL5Yvtwo15uaVyH+vsDHa5xmjKxnwtDtJloUn2AHIlLs...
TXTadobe-idp-site-verification=8e699fe7391a61d469bd007a3295c397905fb566b98db27d3...
TXTe2ma-verification=702eb
TXTapple-domain-verification=UWcwBIUNhBK-htVraea_MSmuyduELwRhhWx2MFJw2OE
TXTMS=ms20230666
TXTapple-domain-verification=wLe0m12b2Z4EunYa
SOAns1.siu.edunetwork-engineering@siu.edu 2026-03-27 #3
WOT: SAFE (82/100)
rank #7178 globally
rank #234 in the tld
WOT: SAFE (85/100)
📈 Tranco rank: #16,718

PTR for

11.92.230.131.in-addr.arpa

Same first word

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DNS History

1 record (1 active, 0 former)

A131.230.21.130
●A131.230.21.1302026-03-05 → 2026-03-28 · 2 obs
● 2026-03-05 17:06:52
● 2026-03-28 07:13:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
edua.edu-servers.net, b.edu-servers.net, c.edu-servers.net, d.edu-servers.net...26 records
siu.eduns1.siu.edu, ns4.siu.edu, ns3.siu.edu, ns5.siu.edu4 records

✅ Authoritative Response

Server:131.230.252.1

NS records: ns1.siu.edu, ns4.siu.edu, ns3.siu.edu, ns5.siu.edu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for siu.edu (unsigned zone)

⏱️ Timing

Total: 167ms | Queries: -

📄 Records

TypeCountSample Data
A1131.230.21.130

📌 Glue Records Collected

Total: 30

In-bailiwick: 4 (ns1.siu.edu, ns4.siu.edu, ns3.siu.edu...)

Out-of-bailiwick: 26 (a.edu-servers.net, a.edu-servers.net, b.edu-servers.net...)

Analysis

IP Addresses

write.siu.edu resolves to a single IP address: 131.230.21.130.

Other host names including shc.siuc.edu, history.siuc.edu, mcma.siu.edu, disabilityservices.siuc.edu and athletics.siu.edu share IP numbers with write.siu.edu.