doublefs.com - dns.ninja

`doublefs.com`

DNSSEC	⚠️ Not signed
NS	`ns3.dnsv4.com` ⭐
		A	2402:4e00:1470:2::10^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	1.12.0.24^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.12.0.25^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.13.76.53^{🇨🇳 TENCENT-NET-AP1.13.64.0/18}
		A	36.155.149.53^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	43.134.249.54^{🇸🇬 TENCENT-NET-AP-CN43.134.224.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	124.64.205.153^{🇨🇳 CHINA169-BJ124.64.205.0/24}
		A	125.94.59.153^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
NS	`ns4.dnsv4.com`
		A	2402:4e00:111:fff::d^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.23^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.12.0.26^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	43.130.172.54^{🇸🇬 TENCENT-NET-AP-CN43.130.160.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	49.7.107.153^{🇨🇳 CHINA-149.7.64.0/18 China Telecom Beijing Co. Ltd.}
		A	101.227.168.53^{🇨🇳 SHANGHAITELECOM101.227.168.0/23 SHIDC}
		A	111.13.203.53^{🇨🇳 CHINAMOBILE-CN111.13.0.0/16 CMI (Customer Route)}
		A	117.135.128.153^{🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route)}
			PTR	`(root)`
		A	163.177.5.53^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
		A	220.196.136.53^{🇨🇳 UNICOM-SHFT-IDC220.196.136.0/24}
MX	`mx1.feishu.cn` ⭐
MX	`mx2.feishu.cn`⁽²⁰⁾
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
MX	`mx3.feishu.cn`⁽³⁰⁾
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
TXT	`MS=ms84845387`
TXT	`v=spf1 +include:_netblocks.m.feishu.cn ~all`
TXT	`google-site-verification=rIdlb7AfCcZ-pRor-eBUF-eAD9TcnNMyEihEHLPrujw`
TXT	`MS=ms70046784`
SOA	`ns3.dnsv4.com`enterprise2dnsadmin@dnspod.com serial=1785334753

`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=1786618899

WOT: SAFE (50/100)
📈 Tranco rank: #114,047

Subdomains

dna.doublefs.com

ads.doublefs.com

dmm.doublefs.com

viams.doublefs.com

fcs.doublefs.com

feishu.doublefs.com

wms.doublefs.com

t.doublefs.com

Same first word

doublefs.com

Similar names

boldfuse.com

DNS History

5 records (5 active, 0 former)

●NSns3.dnsv4.com2026-02-17 → 2026-08-13 · 2 obs

● 2026-02-17 21:31:52
● 2026-08-13 11:12:42

●NSns4.dnsv4.com2026-02-17 → 2026-08-13 · 2 obs

● 2026-02-17 21:31:52
● 2026-08-13 11:12:42

●MXmx1.feishu.cn2026-02-17 → 2026-08-13 · 5 obs

● 2026-02-17 21:31:52
● 2026-06-16 06:29:56
○ 2026-06-16 15:00:32
● 2026-06-16 20:44:44
● 2026-08-13 11:12:42

●MXmx2.feishu.cn2026-02-17 → 2026-08-13 · 5 obs

● 2026-02-17 21:31:52
● 2026-06-16 06:29:56
○ 2026-06-16 15:00:32
● 2026-06-16 20:44:44
● 2026-08-13 11:12:42

●MXmx3.feishu.cn2026-02-17 → 2026-08-13 · 5 obs

● 2026-02-17 21:31:52
● 2026-06-16 06:29:56
○ 2026-06-16 15:00:32
● 2026-06-16 20:44:44
● 2026-08-13 11:12:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net...	-
doublefs.com	ns3.dnsv4.com, ns4.dnsv4.com	18 records

✅ Authoritative Response

Server:1.12.0.23

NS records: ns3.dnsv4.com, ns4.dnsv4.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for doublefs.com (unsigned zone)

⏱️ Timing

Total: 201ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns3.dnsv4.com, ns4.dnsv4.com`
MX	3	`mx1.feishu.cn (pri: 10), mx2.feishu.cn (pri: 20)...`
TXT	4	`MS=ms70046784, MS=ms84845387...`
SOA	1	`ns3.dnsv4.com enterprise2dnsadmin.dnspod`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (ns3.dnsv4.com, ns3.dnsv4.com, ns3.dnsv4.com...)

Analysis

Hierarchy

The host names dna.doublefs.com, ads.doublefs.com, dmm.doublefs.com, viams.doublefs.com and fcs.doublefs.com — among a few others — fall under the parent domain doublefs.com.

Name Servers

The NS records for doublefs.com delegate to ns3.dnsv4.com and ns4.dnsv4.com.

doublefs.com has the same name server delegation as a number of other domains, such as e-jitp-glo.com, gooagoo.com, ewt360.com and two more.

At least some of doublefs.com's name servers are shared with other domains, for example streamlakeapi.com, jlcerp.com, weihuijob.com and two more.

These name servers are often deployed together with the name servers vip3.alidns.com, vip4.alidns.com, f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.

Host names resolving to 10 IP numbers:

ns4.dnsv4.com maps to 1.12.0.23, 1.12.0.26, 43.130.172.54 and 7 additional IP addresses.

Host names resolving to 8 IP numbers:

ns3.dnsv4.com maps to 1.12.0.24, 1.12.0.25, 1.13.76.53 and 5 additional IP addresses.

Mail Servers

The MX records for doublefs.com list three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

doublefs.com shares at least some of its mail servers with other domains — for example dggbo.com, poryf.com, hzhuij.com and two more.

Hosts with three IP address records:

mx3.feishu.cn maps to three IP addresses: 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Hosts with two IP numbers each:

The A records for mx2.feishu.cn return 101.126.58.225 and 122.14.229.0.

mx3.feishu.cn and mx2.feishu.cn each have 101.126.58.225 IP addresses.

mx3.feishu.cn and mx2.feishu.cn each have 122.14.229.0 IP addresses.