nqcodingclass.contest.codeforces.com - dns.ninja
nqcodingclass.contest.codeforces.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 95.163.252.67🇷🇺 VK-AS95.163.248.0/21 Moscow region | ||||||
| PTR | mx1.codeforces.com | ||||||
contest.codeforces.com
| DNSSEC | ⚠️ Not signed | ||||||
WOT: SAFE (94/100)
DNS History
1 record (1 active, 0 former)
●A95.163.252.672026-07-17 → 2026-07-25 · 2 obs
● 2026-07-17 03:59:22
● 2026-07-25 06:21:18
● 2026-07-25 06:21:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| codeforces.com | fred.ns.cloudflare.com, jean.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.193.113
NS records: fred.ns.cloudflare.com, jean.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for codeforces.com (unsigned zone)
⏱️ Timing
Total: 98ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 95.163.252.67 |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (fred.ns.cloudflare.com, fred.ns.cloudflare.com, fred.ns.cloudflare.com...)
Analysis
IP Addresses
nqcodingclass.contest.codeforces.com has exactly one IP address — 95.163.252.67.
st.codeforces.com, mx1.codeforces.com, mcc2026.contest.codeforces.com plus two other host names have IP numbers in common with nqcodingclass.contest.codeforces.com.