learningos.cn - dns.ninja

learningos.cn

CNAMElearningos.github.io
DNSSEC⚠️ Not signed
A2606:50c0:8000::153🇺🇸 Fastly2606:50c0:8000::/48 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A2606:50c0:8001::153🇺🇸 Fastly2606:50c0:8001::/48 + 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A2606:50c0:8002::153🇺🇸 Fastly2606:50c0:8002::/48 + 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A2606:50c0:8003::153🇺🇸 Fastly2606:50c0:8003::/48 + 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A185.199.108.153🇺🇸 Fastly185.199.108.0/24 GitHub - 185.199.108.0/24
A185.199.109.153🇺🇸 Fastly185.199.109.0/24 GitHub - 185.199.109.0/24
A185.199.110.153🇺🇸 Fastly185.199.110.0/24 GitHub - 185.199.110.0/24
A185.199.111.153🇺🇸 Fastly185.199.111.0/24 GitHub - 185.199.111.0/24

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2035066477

Same first word

learningos.org
learningos.cn
learningos.github.io

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DNS History

5 records (5 active, 0 former)

NSdns15.hichina.comdns16.hichina.comMXmxbiz1.qq.commxbiz2.qq.comCNAMElearningos.github.io
●NSdns15.hichina.com2026-06-15 → 2026-07-20 · 2 obs
● 2026-06-15 21:34:44
● 2026-07-20 17:42:28
●NSdns16.hichina.com2026-06-15 → 2026-07-20 · 2 obs
● 2026-06-15 21:34:44
● 2026-07-20 17:42:28
●MXmxbiz1.qq.com2026-06-15 → 2026-07-20 · 4 obs
● 2026-06-15 21:34:44
● 2026-06-18 08:51:12
○ 2026-07-07 13:34:42
● 2026-07-20 17:42:28
●MXmxbiz2.qq.com2026-06-15 → 2026-07-20 · 4 obs
● 2026-06-15 21:34:44
● 2026-06-18 08:51:12
○ 2026-07-07 13:34:42
● 2026-07-20 17:42:28
●CNAMElearningos.github.io2026-06-15 → 2026-07-20 · 4 obs
● 2026-06-15 21:34:44
● 2026-06-18 08:51:12
○ 2026-07-07 13:34:42
● 2026-07-20 17:42:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
learningos.cndns15.hichina.com, dns16.hichina.com-

✅ Authoritative Response

Server:120.76.107.42

NS records: dns15.hichina.com, dns16.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for learningos.cn (unsigned zone)

⏱️ Timing

Total: 1831ms | Queries: -

📄 Records

TypeCountSample Data
NS2dns15.hichina.com, dns16.hichina.com
MX2mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)
TXT1v=spf1 include:spf.mail.qq.com ~all
CNAME1learningos.github.io
SOA1dns15.hichina.com hostmaster.hichina.com

Analysis

IP Addresses

learningos.cn resolves to 8 IP numbers: 185.199.108.153, 185.199.109.153, 185.199.110.153 and 5 other.

Additional host names — aya(0x616e616c)i.com, slideio.com, extrapolo.com and two others — share IP numbers with learningos.cn.