mirror.codeforces.com - dns.ninja
mirror.codeforces.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 95.163.252.67🇷🇺 VK-AS95.163.248.0/21 Moscow region | ||||||
| PTR | mx1.codeforces.com | ||||||
codeforces.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:20::681a:6a4🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:20::681a:7a4🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:20::ac43:44fe🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.26.6.164Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.26.7.164Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.68.254🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | fred.ns.cloudflare.com ⭐ | ||||||
| NS | jean.ns.cloudflare.com | ||||||
| MX | mx.yandex.net ⭐ | ||||||
| TXT | google-site-verification=l4G0k0hCtL44oR2JYae12tG2VSyD0ig5OEN4oKGz6IY | ||||||
| TXT | loaderio=17e74635884b3872197928c7ea0123c5 | ||||||
| TXT | v=spf1 ip4:77.234.204.67 ip4:95.163.252.67 include:_spf.yandex.net -all | ||||||
| HTTPS | HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.26.6.164, 104.26.7.164, 172.67.68.254 | ||||||
| IPv6 hints | 2606:4700:20::681a:6a4, 2606:4700:20::681a:7a4, 2606:4700:20::ac43:44fe | ||||||
| SOA | fred.ns.cloudflare.comdns@cloudflare.com serial=2408827545 | ||||||
rank #17736 globally
rank #8683 in the tld
WOT: SAFE (94/100)
📈 Tranco rank: #6,269
Same first word
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DNS History
1 record (1 active, 0 former)
●A95.163.252.672026-03-27 → 2026-07-24 · 2 obs
● 2026-03-27 07:25:12
● 2026-07-24 00:42:32
● 2026-07-24 00:42:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net, b.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: 469ms | 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
mirror.codeforces.com has exactly one IP address — 95.163.252.67.
repo.pbox.me, nqcodingclass.contest.codeforces.com, pubsub.codeforces.com plus two other host names have IP numbers in common with mirror.codeforces.com.