`externalcoop.com`

DNSSEC	⚠️ Not signed
NS	`ns1.volc-dns.com` ⭐
		A	13.248.218.45^{🇺🇸 Amazon13.248.208.0/20}
			PTR	`a6cea1b8db6e0502b.awsglobalaccelerator.com`
NS	`ns-mobile.volc-dns.com`
		A	14.103.103.163^{🇨🇳 SHANGHAITELECOM14.103.96.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	47.103.69.110^{🇨🇳 Alibaba-Cloud47.102.0.0/15}
NS	`ns-telecom.volc-dns.net`
		A	47.115.127.205^{🇨🇳 Alibaba-Cloud47.115.0.0/17 Alibaba (US) Technology Co., Ltd.}
NS	`ns-unicom.volc-dns.com`
		A	39.97.243.225^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	115.190.150.97^{🇨🇳 VOLCANO-ENGINE115.190.144.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`ns2.volc-dns.net`
		A	14.103.103.163^{🇨🇳 SHANGHAITELECOM14.103.96.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	39.97.243.225^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.103.69.110^{🇨🇳 Alibaba-Cloud47.102.0.0/15}
		A	47.115.127.205^{🇨🇳 Alibaba-Cloud47.115.0.0/17 Alibaba (US) Technology Co., Ltd.}
SOA	`ns1.volc-dns.com`dnsadmin@bytedance.com 2025-02-07 #0

`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.net`nstld@verisign-grs.com serial=1771291435

📈 Tranco rank: #129,982

Subdomains

m.externalcoop.com

Same first word

externalcoop.com

DNS History

5 records (5 active, 0 former)

●NSns-mobile.volc-dns.com2026-03-18 → 2026-03-23 · 2 obs

● 2026-03-18 09:57:54
● 2026-03-23 21:48:16

●NSns-telecom.volc-dns.net2026-03-18 → 2026-03-23 · 2 obs

● 2026-03-18 09:57:54
● 2026-03-23 21:48:16

●NSns-unicom.volc-dns.com2026-03-18 → 2026-03-23 · 2 obs

● 2026-03-18 09:57:54
● 2026-03-23 21:48:16

●NSns1.volc-dns.com2026-03-18 → 2026-03-23 · 2 obs

● 2026-03-18 09:57:54
● 2026-03-23 21:48:16

●NSns2.volc-dns.net2026-03-18 → 2026-03-23 · 2 obs

● 2026-03-18 09:57:54
● 2026-03-23 21:48:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, c.gtld-servers.net...	-
externalcoop.com	ns1.volc-dns.com, ns-mobile.volc-dns.com, ns-unicom.volc-dns.com, ns-telecom.volc-dns.net...	7 records

✅ Authoritative Response

Server:115.190.150.97

NS records: ns1.volc-dns.com, ns-mobile.volc-dns.com, ns-unicom.volc-dns.com, ns-telecom.volc-dns.net, ns2.volc-dns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for externalcoop.com (unsigned zone)

⏱️ Timing

Total: 1582ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	5	`ns2.volc-dns.net, ns-mobile.volc-dns.com...`
SOA	1	`ns1.volc-dns.com dnsadmin.bytedance.com`

📌 Glue Records Collected

Total: 7

Out-of-bailiwick: 7 (ns1.volc-dns.com, ns1.volc-dns.com, ns1.volc-dns.com...)

Analysis

Hierarchy

The parent of m.externalcoop.com is externalcoop.com.

Name Servers

externalcoop.com is delegated to five name servers: ns-mobile.volc-dns.com, ns-unicom.volc-dns.com, ns1.volc-dns.com, ns-telecom.volc-dns.net and ns2.volc-dns.net.

externalcoop.com at least partially shares name servers with other domains, for example hsz71.cn, toutiaopic.com, szacq.cn, byteplusbiz.com and beiguo.ai.

Name servers ns1.bytedns.com, ns1.bpldns.com, ns2.bpldns.net, ns-mobile.bytedns.com, ns-telecom.bytedns.com, ns-unicom.bytedns.com and ns2.bytedns.com are commonly used together.

Host names with four IP numbers: The host name ns2.volc-dns.net points to 14.103.103.163, 39.97.243.225, 47.103.69.110 and 47.115.127.205.

Host names with two IP numbers: The host name ns-mobile.volc-dns.com points to 14.103.103.163 and 47.103.69.110; The host name ns-unicom.volc-dns.com points to 39.97.243.225 and 115.190.150.97.

Host names with one IP number: The host name ns1.volc-dns.com points to 13.248.218.45; The host name ns-telecom.volc-dns.net points to 47.115.127.205.

Host names that point to 14.103.103.163: ns2.volc-dns.net and ns-mobile.volc-dns.com.

Host names that point to 39.97.243.225: ns2.volc-dns.net and ns-unicom.volc-dns.com.

Host names that point to 47.103.69.110: ns2.volc-dns.net and ns-mobile.volc-dns.com.

Host names that point to 47.115.127.205: ns2.volc-dns.net and ns-telecom.volc-dns.net.

externalcoop.com - robtex.com