cs.sch.ac.kr - robtex.com

cs.sch.ac.kr

DNSSEC⚠️ Not signed
A220.69.209.31🇰🇷 SCH-AS-KR220.69.209.0/24
PTRcs.sch.ac.kr

sch.ac.kr

DNSSEC⚠️ Not signed
A220.69.189.120🇰🇷 SCH-AS-KR220.69.189.0/24
NSns1.sch.ac.kr ⭐ ⚠️ Not in parent delegation
NSns0.sch.ac.kr
NSns2.sch.ac.kr
MXspam.sch.ac.kr ⭐
TXTZOOM_verify_ZmVZI02pQD63OHQjNY_7jA
TXTv=spf1 ip4:220.69.189.111 ip4:220.69.189.112 ip4:220.69.189.119 ip4:220.69.18...
TXTadobe-idp-site-verification=927492af4b2cdcce3b30dbf8986f982f0b710de85df8f3fca...
SOAns1.sch.ac.krroot@ns1.sch.ac.kr serial=7886
rank #209240 globally
rank #450 in the tld
📈 Tranco rank: #62,716

PTR for

31.209.69.220.in-addr.arpa

Same first word

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DNS History

1 record (1 active, 0 former)

201520162017201820192020202120222023202420252026A220.69.209.31
●A220.69.209.312014-05-31 → 2026-06-05 · 2 obs
● 2014-05-31 23:02:28
● 2026-06-05 07:12:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
krf.dns.kr, e.dns.kr, b.dns.kr, d.dns.kr...-
sch.ac.krns0.sch.ac.kr, ns2.sch.ac.kr2 records

✅ Authoritative Response

Server:211.216.50.160

NS records: ns0.sch.ac.kr, ns2.sch.ac.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sch.ac.kr (unsigned zone)

⏱️ Timing

Total: 2772ms | Queries: -

📄 Records

TypeCountSample Data
A1220.69.209.31

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns0.sch.ac.kr, ns2.sch.ac.kr)

Analysis

IP Addresses

cs.sch.ac.kr resolves to just one IP address, 220.69.209.31.