cos4.net - robtex.com
cos4.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.127.31.101🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | ik1-413-38847.vs.sakura.ne.jp | ||||||
| NS | etienne.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c3d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | etienne.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c33d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | etienne.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:233d🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | etienne.ns.cloudflare.com | ||||||
| A | 108.162.195.61🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | etienne.ns.cloudflare.com | ||||||
| A | 162.159.44.61Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | etienne.ns.cloudflare.com | ||||||
| A | 172.64.35.61🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | etienne.ns.cloudflare.com | ||||||
| NS | indie.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26a3🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | indie.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2a3🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | indie.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22a3🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | indie.ns.cloudflare.com | ||||||
| A | 108.162.194.163🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | indie.ns.cloudflare.com | ||||||
| A | 162.159.38.163Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | indie.ns.cloudflare.com | ||||||
| A | 172.64.34.163🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | indie.ns.cloudflare.com | ||||||
| SOA | etienne.ns.cloudflare.comdns@cloudflare.com serial=2406865696 | ||||||
net
| 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=1784697857 | ||||||
Same first word
Similar names
4soc.com |
4cos.eu |
osc4.com |
co4s.com |
c4so.com |
sco4.de |
s4co.com |
4cos.net |
4sco.com |
4ocs.us |
4cos.com |
4cso.com |
soc4.com |
cso4.com |
c4so.org |
4ocs.com |
oc4s.com |
co4s.net |
c4os.com |
4soc.net |
soc4.cn |
os4c.com |
DNS History
9 records (3 active, 6 former)
●NSetienne.ns.cloudflare.com2026-07-19 → 2026-07-22 · 3 obs
● 2026-07-19 15:10:08
● 2026-07-22 05:35:52
●NSindie.ns.cloudflare.com2026-07-19 → 2026-07-22 · 3 obs
● 2026-07-19 15:10:08
● 2026-07-22 05:35:52
○NSns49.domaincontrol.com2015-05-13 → 2017-03-18 · 4 obs
● 2017-03-18 07:08:02
○ 2026-07-19 15:10:08
○ 2026-07-22 05:35:52
○NSns50.domaincontrol.com2015-05-13 → 2017-03-18 · 4 obs
● 2017-03-18 07:08:02
○ 2026-07-19 15:10:08
○ 2026-07-22 05:35:52
○MXmailstore1.secureserver.net2015-05-13 → 2017-03-18 · 4 obs
● 2017-03-18 07:08:02
○ 2026-07-19 15:10:08
○ 2026-07-22 05:35:52
○MXsmtp.secureserver.net2015-05-13 → 2017-03-18 · 4 obs
● 2017-03-18 07:08:02
○ 2026-07-19 15:10:08
○ 2026-07-22 05:35:52
●A153.127.31.1012026-07-19 → 2026-07-22 · 3 obs
● 2026-07-19 15:10:08
● 2026-07-22 05:35:52
○A184.168.221.522015-05-13 → 2015-05-13 · 3 obs
○ 2015-10-14 23:41:00
○ 2026-07-22 05:35:52
○A50.63.202.412015-10-14 → 2017-03-18 · 5 obs
● 2015-10-14 23:41:00
● 2017-03-18 07:08:02
○ 2026-07-19 15:10:08
○ 2026-07-22 05:35:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | i.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net... | - |
| cos4.net | indie.ns.cloudflare.com, etienne.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.195.61
NS records: indie.ns.cloudflare.com, etienne.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cos4.net (unsigned zone)
⏱️ Timing
Total: 547ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 153.127.31.101 |
| NS | 2 | etienne.ns.cloudflare.com, indie.ns.cloudflare.com |
| SOA | 1 | etienne.ns.cloudflare.com dns.cloudflare |
Analysis
IP Addresses
cos4.net points to a single IP number: 153.127.31.101.
Name Servers
cos4.net is delegated to two name servers: etienne.ns.cloudflare.com and indie.ns.cloudflare.com.
cos4.net shares its name server setup with other domains, including labradorvet.com, isabellarenewilliams.com, comayhemathletics.com and two others.
The name servers of cos4.net overlap at least partially with those of other domains — among them fancy-letters.com, avivah.com.br, us-en-usa-citrusburn.com and two more.
The name servers ulla.ns.cloudflare.com, ben.ns.cloudflare.com and dax.ns.cloudflare.com are commonly seen alongside these name servers.
Host names with 6 IP numbers:
etienne.ns.cloudflare.com resolves to 108.162.195.61, 162.159.44.61, 172.64.35.61 and 3 other IP addresses.
indie.ns.cloudflare.com resolves to 108.162.194.163, 162.159.38.163, 172.64.34.163 and 3 other IP addresses.