codesforce.com - dns.ninja
codesforce.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 185.253.212.22🇵🇱 AS48707-OPS-PL185.253.212.0/24 | ||||||
| NS | ns1.aftermarket.pl ⭐ | ||||||
| A | 185.253.213.10🇵🇱 AS48707-OPS-PL185.253.213.0/24 | ||||||
| PTR | ns1.aftermarket.pl | ||||||
| NS | ns2.aftermarket.pl | ||||||
| A | 185.253.214.10🇵🇱 AS48707-OPS-PL185.253.214.0/24 | ||||||
| PTR | ns2.aftermarket.pl | ||||||
| MX | blackhole.aftermarket.pl ⭐ | ||||||
| A | 185.237.29.29🇵🇱 AS48707-OPS-PL185.237.29.0/24 | ||||||
| TXT | v=spf1 mx -all | ||||||
| SOA | ns1.aftermarket.plkontakt@aftermarket.pl serial=2501191114 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1784779702 | ||||||
Same first word
codesforce.com |
Similar names
codeforces.netlify.app |
codeforces.com |
codeforces.net |
frescocode.com |
codeforces.org |
codeforecs.s3-us-west-2.amazonaws.com |
codeforces.ru |
codeforces.me |
codeforces.live |
DNS History
14 records (4 active, 10 former)
○NSdns10.hichina.com2017-01-09 → 2017-01-09 · 4 obs
● 2017-01-09 07:33:44
○ 2018-09-21 04:26:40
○ 2026-07-23 04:36:30
○NSdns9.hichina.com2017-01-09 → 2017-01-09 · 4 obs
● 2017-01-09 07:33:44
○ 2018-09-21 04:26:40
○ 2026-07-23 04:36:30
●NSns1.aftermarket.pl2026-03-21 → 2026-07-23 · 6 obs
● 2026-03-21 22:45:20
● 2026-05-23 20:15:48
○ 2026-05-24 11:10:44
● 2026-06-16 23:25:50
● 2026-07-23 04:36:30
○NSns1.hover.com2018-09-21 → 2018-09-21 · 4 obs
● 2018-09-21 04:26:40
○ 2026-03-21 22:45:20
○ 2026-07-23 04:36:30
●NSns2.aftermarket.pl2026-03-21 → 2026-07-23 · 6 obs
● 2026-03-21 22:45:20
● 2026-05-23 20:15:48
○ 2026-05-24 11:10:44
● 2026-06-16 23:25:50
● 2026-07-23 04:36:30
○NSns2.hover.com2018-09-21 → 2018-09-21 · 4 obs
● 2018-09-21 04:26:40
○ 2026-03-21 22:45:20
○ 2026-07-23 04:36:30
○NSns31.domaincontrol.com2015-07-03 → 2015-07-03 · 3 obs
○ 2015-11-11 05:30:26
○ 2026-07-23 04:36:30
○NSns32.domaincontrol.com2015-07-03 → 2015-07-03 · 3 obs
○ 2015-11-11 05:30:26
○ 2026-07-23 04:36:30
●MXblackhole.aftermarket.pl2026-03-21 → 2026-07-23 · 6 obs
● 2026-03-21 22:45:20
● 2026-05-23 20:15:48
○ 2026-05-24 11:10:44
● 2026-06-16 23:25:50
● 2026-07-23 04:36:30
○MXcodesforce-com.mail.protection.outlook.com2015-07-03 → 2015-07-03 · 3 obs
○ 2015-11-11 05:30:26
○ 2026-07-23 04:36:30
○MXmx.hover.com.cust.hostedemail.com2018-09-21 → 2018-09-21 · 4 obs
● 2018-09-21 04:26:40
○ 2026-03-21 22:45:20
○ 2026-07-23 04:36:30
●A185.253.212.222026-03-21 → 2026-07-23 · 6 obs
● 2026-03-21 22:45:20
● 2026-05-23 20:15:48
○ 2026-05-24 11:10:44
● 2026-06-16 23:25:50
● 2026-07-23 04:36:30
○A50.63.202.472015-07-03 → 2015-07-03 · 3 obs
○ 2015-11-11 05:30:26
○ 2026-07-23 04:36:30
○A64.98.145.302018-09-21 → 2018-09-21 · 4 obs
● 2018-09-21 04:26:40
○ 2026-03-21 22:45:20
○ 2026-07-23 04:36:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, h.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net... | - |
| codesforce.com | ns1.aftermarket.pl, ns2.aftermarket.pl | - |
✅ Authoritative Response
Server:185.253.213.10
NS records: ns1.aftermarket.pl, ns2.aftermarket.pl
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 475ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.253.212.22 |
| NS | 2 | ns2.aftermarket.pl, ns1.aftermarket.pl |
| MX | 1 | blackhole.aftermarket.pl (pri: 10) |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | ns1.aftermarket.pl kontakt.aftermarket.p |
Analysis
IP Addresses
codesforce.com directs to one IP number, which is 185.253.212.22.
Among the host names that share IP numbers with codesforce.com are uhotel.pl, 155a133b41c112.greendata.pl, sarmpedia.pl and two others.
Name Servers
codesforce.com uses two name servers for its delegation: ns1.aftermarket.pl and ns2.aftermarket.pl.
codesforce.com has the same name server delegation as a number of other domains, such as rewal.info.pl, dionizos.pl, txt.com.pl and two more.
codesforce.com partially shares its NS delegation with several other domains, including inblu.pl, zdrowazywnosc.waw.pl, silownie.com.pl and two others.
These name servers are regularly seen alongside verify-39b0dfe3937bed4c.ns1.aftermarket.pl and verify-39b0dfe3937bed4c.ns2.aftermarket.pl as name servers.
ns1.aftermarket.pl resolves to 185.253.213.10. ns2.aftermarket.pl resolves to 185.253.214.10. Both host names point to a single IP number.
Mail Servers
codesforce.com routes its mail through a single mail server, blackhole.aftermarket.pl.
codesforce.com has the same mail server arrangement as a number of other domains, for example bookofraonline.pl, redex.pl, helpothershelpyourself.com and two more.
blackhole.aftermarket.pl directs to just one IP number, 185.237.29.29.