cotcs.com - robtex.com

cotcs.com

DNSSEC⚠️ Not signed
A154.206.194.77🇭🇰 GNET-AS9294154.206.192.0/20
NSa6.share-dns.com ⭐ ⚠️ Not in parent delegation
A172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRip-172-64-53-25.defastlink.net
NSa.share-dns.com ⚠️ Not in zone NS records
A172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRip-172-64-53-25.defastlink.net
NSb.share-dns.net ⚠️ Not in zone NS records
A172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRip-172-64-52-239.defastlink.net
NSb6.share-dns.net ⚠️ Not in parent delegation
A172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRip-172-64-52-239.defastlink.net
SOAa.share-dns.commaster@share-dns.com serial=1758505038

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435

Same first word

cotcs.org
cotcs.com

Similar names

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otcsc.com.cn
tscco.com
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stocc.com

DNS History

13 records (5 active, 8 former)

200920112013201520172019202120232025NSa.share-dns.coma6.share-dns.comb.share-dns.netb6.share-dns.netns10.twservers.netns5.twservers.netns6.twservers.netns9.twservers.netMXmail.cotcs.comsmartermail01.twservers.netA154.206.194.7745.76.149.460.249.109.30
●NSa.share-dns.com2026-02-26 → 2026-03-18 · 3 obs
○ 2020-02-15 04:22:30
● 2026-02-26 00:03:34
● 2026-03-18 16:45:38
●NSa6.share-dns.com2026-02-26 → 2026-03-18 · 3 obs
○ 2020-02-15 04:22:30
● 2026-02-26 00:03:34
● 2026-03-18 16:45:38
●NSb.share-dns.net2026-02-26 → 2026-03-18 · 3 obs
○ 2020-02-15 04:22:30
● 2026-02-26 00:03:34
● 2026-03-18 16:45:38
●NSb6.share-dns.net2026-02-26 → 2026-03-18 · 3 obs
○ 2020-02-15 04:22:30
● 2026-02-26 00:03:34
● 2026-03-18 16:45:38
○NSns10.twservers.net2020-02-15 → 2020-02-15 · 4 obs
○ 2017-04-03 04:10:46
● 2020-02-15 04:22:30
○ 2026-02-26 00:03:34
○ 2026-03-18 16:45:38
○NSns5.twservers.net2015-08-24 → 2017-04-03 · 5 obs
○ 2008-11-17 07:34:58
● 2015-08-24 10:06:16
● 2017-04-03 04:10:46
○ 2020-02-15 04:22:30
○ 2026-03-18 16:45:38
○NSns6.twservers.net2015-08-24 → 2017-04-03 · 5 obs
○ 2008-11-17 07:34:58
● 2015-08-24 10:06:16
● 2017-04-03 04:10:46
○ 2020-02-15 04:22:30
○ 2026-03-18 16:45:38
○NSns9.twservers.net2020-02-15 → 2020-02-15 · 4 obs
○ 2017-04-03 04:10:46
● 2020-02-15 04:22:30
○ 2026-02-26 00:03:34
○ 2026-03-18 16:45:38
○MXmail.cotcs.com2015-08-24 → 2017-04-03 · 5 obs
○ 2008-11-17 07:34:58
● 2015-08-24 10:06:16
● 2017-04-03 04:10:46
○ 2020-02-15 04:22:30
○ 2026-03-18 16:45:38
○MXsmartermail01.twservers.net2020-02-15 → 2020-02-15 · 4 obs
○ 2017-04-03 04:10:46
● 2020-02-15 04:22:30
○ 2026-02-26 00:03:34
○ 2026-03-18 16:45:38
●A154.206.194.772026-02-26 → 2026-03-18 · 3 obs
○ 2020-02-15 04:22:30
● 2026-02-26 00:03:34
● 2026-03-18 16:45:38
○A45.76.149.42020-02-15 → 2020-02-15 · 4 obs
○ 2017-04-03 04:10:46
● 2020-02-15 04:22:30
○ 2026-02-26 00:03:34
○ 2026-03-18 16:45:38
○A60.249.109.302015-08-24 → 2017-04-03 · 5 obs
○ 2008-11-17 07:34:58
● 2015-08-24 10:06:16
● 2017-04-03 04:10:46
○ 2020-02-15 04:22:30
○ 2026-03-18 16:45:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net, l.gtld-servers.net...-
cotcs.comb6.share-dns.net, a6.share-dns.com1 record

✅ Authoritative Response

Server: 172.64.52.239

NS records: b6.share-dns.net, a6.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cotcs.com (unsigned zone)

⏱️ Timing

Total: 383ms | Queries: -

📄 Records

TypeCountSample Data
A1154.206.194.77
NS2a.share-dns.com, b.share-dns.net
SOA1a.share-dns.com master.share-dns.com

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (a6.share-dns.com)

Analysis

IP Addresses

cotcs.com points to a single IP address: 154.206.194.77.

Other host names, for instance chongxinrencai.com, share IP numbers with cotcs.com.

Name Servers

cotcs.com is delegated to four name servers: a6.share-dns.com, a.share-dns.com, b6.share-dns.net and b.share-dns.net.

At least part of the name servers for cotcs.com are shared with other domains, for instance tikiyimhome.com, fzjbkj.com, tutor-master.com, customhqla.com and zgdshoes.com.

these name servers are commonly used with the name servers a8.share-dns.com, b8.share-dns.net, a7.share-dns.com, b7.share-dns.net, a11.share-dns.com, b11.share-dns.net, a1.share-dns.com, b1.share-dns.net, a5.share-dns.com and b5.share-dns.net.

Hostnames with one IP:

a6.share-dns.com points to 172.64.53.25

a.share-dns.com points to 172.64.53.25

b6.share-dns.net points to 172.64.52.239

b.share-dns.net points to 172.64.52.239

Hostnames that point to 172.64.53.25: a6.share-dns.com and a.share-dns.com

Hostnames that point to 172.64.52.239: b6.share-dns.net and b.share-dns.net