cern.com - dns.ninja
cern.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.gandi.net ⭐ | ||||||
| A | 2604:3400:abca::1🇺🇸 GANDI-LIVEDNS2604:3400:abca::/48 A-DNS | ||||||
| PTR | a.dns.gandi.net | ||||||
| A | 173.246.98.1🇺🇸 GANDI-LIVEDNS173.246.98.0/24 A-DNS | ||||||
| PTR | a.dns.gandi.net | ||||||
| NS | b.dns.gandi.net | ||||||
| A | 2001:4b98:abcb::1🇫🇷 GANDI-LIVEDNS2001:4b98:abcb::/48 B-DNS | ||||||
| PTR | b.dns.gandi.net | ||||||
| A | 213.167.229.1🇫🇷 GANDI-LIVEDNS213.167.229.0/24 B-DNS | ||||||
| PTR | b.dns.gandi.net | ||||||
| NS | c.dns.gandi.net | ||||||
| A | 2604:3400:abcc::1🇺🇸 GANDI-LIVEDNS2604:3400:abcc::/48 c.dns.gandi.net | ||||||
| PTR | c.dns.gandi.net | ||||||
| A | 217.70.179.1🇫🇷 GANDI-LIVEDNS217.70.179.0/24 C-DNS | ||||||
| PTR | c.dns.gandi.net | ||||||
| MX | mail1.g23.pair.com ⭐ | ||||||
| A | 2607:f440::4227:1985🇺🇸 AS78592607:f440::/32 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203 | ||||||
| PTR | mail1.g23.pair.com | ||||||
| A | 66.39.25.133🇺🇸 AS785966.39.0.0/17 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203 | ||||||
| PTR | mail1.g23.pair.com | ||||||
| SOA | a.dns.gandi.nethostmaster@gandi.net serial=1546703813 | ||||||
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=1784630607 | ||||||
Subdomains
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
●NSa.dns.gandi.net2015-08-21 → 2026-07-21 · 2 obs
● 2026-07-21 10:56:14
●NSb.dns.gandi.net2015-08-21 → 2026-07-21 · 2 obs
● 2026-07-21 10:56:14
●NSc.dns.gandi.net2015-08-21 → 2026-07-21 · 2 obs
● 2026-07-21 10:56:14
●MXmail1.g23.pair.com2020-11-29 → 2026-07-21 · 3 obs
● 2020-11-29 21:33:20
● 2026-07-21 10:56:14
○MXmailwash46.pair.com2015-08-21 → 2018-10-16 · 4 obs
● 2018-10-16 12:35:18
○ 2020-11-29 21:33:20
○ 2026-07-21 10:56:14
○MXtanha.cern.com2015-08-21 → 2018-10-16 · 4 obs
● 2018-10-16 12:35:18
○ 2020-11-29 21:33:20
○ 2026-07-21 10:56:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| cern.com | a.dns.gandi.net, b.dns.gandi.net, c.dns.gandi.net | - |
✅ Authoritative Response
Server:217.70.179.1
NS records: a.dns.gandi.net, b.dns.gandi.net, c.dns.gandi.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cern.com (unsigned zone)
⏱️ Timing
Total: 759ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | b.dns.gandi.net, a.dns.gandi.net... |
| MX | 1 | mail1.g23.pair.com (pri: 10) |
| SOA | 1 | a.dns.gandi.net hostmaster.gandi.net |
Analysis
Hierarchy
tanha.cern.com and ifin.cern.com are both subdomains of cern.com.
Name Servers
cern.com is delegated to three name servers: a.dns.gandi.net, b.dns.gandi.net and c.dns.gandi.net.
cern.com has at least partial name server overlap with other domains, such as luminem.it, dprod.net, pegon.net and two others.
a.dns.gandi.net, b.dns.gandi.net and c.dns.gandi.net each resolve to two IP addresses: a.dns.gandi.net resolves to 173.246.98.1 and 2604:3400:abca::1; b.dns.gandi.net resolves to 213.167.229.1 and 2001:4b98:abcb::1; c.dns.gandi.net resolves to 217.70.179.1 and 2604:3400:abcc::1.
Mail Servers
Mail for cern.com is handled by a single mail server, mail1.g23.pair.com.
cern.com uses an identical mail server configuration to several other domains — among them wrvolunteers.org, awerawr.com, rimviewsuite.com and two more.
The mail servers of cern.com are at least partially shared with other domains, including auntems.net.
mail1.g23.pair.com has two IP addresses: 66.39.25.133 and 2607:f440::4227:1985.