itutool.com - dns.ninja

`itutool.com`

DNSSEC	⚠️ Not signed
A	122.51.156.17^{🇨🇳 TENCENT-NET-AP122.51.128.0/18}
NS	`nail.dnspod.net` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.14.119.35^{🇨🇳 TENCENT-NET-AP1.14.64.0/18}
		A	111.13.13.35^{🇨🇳 CHINAMOBILE-CN111.13.0.0/16 CMI (Customer Route)}
		A	117.89.178.35^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	220.196.136.35^{🇨🇳 UNICOM-SHFT-IDC220.196.136.0/24}
NS	`brass.dnspod.net`
		A	2402:4e00:111:fff::c^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.1^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.13.76.35^{🇨🇳 TENCENT-NET-AP1.13.64.0/18}
		A	36.155.149.35^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	101.227.168.35^{🇨🇳 SHANGHAITELECOM101.227.168.0/23 SHIDC}
		A	111.206.98.235^{🇨🇳 CHINA169-BJ111.206.98.0/24}
MX	`mx1.feishu.cn` ⭐
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
MX	`mx2.feishu.cn`⁽⁵⁾
		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`⁽¹⁰⁾
		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	`v=spf1 +include:_netblocks.m.feishu.cn -all`
TXT	`verification-code-site-App_feishu=bOXXCt4wPoMNwAMYiuSq`
SOA	`nail.dnspod.net`freednsadmin@dnspod.com serial=1767594748

`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=1785161917

Same first word

itutool.com

Similar names

utoolit.com

ottoliu.com

toutilo.com

tuitool.cn

totouli.gr

tutolio.com

DNS History

6 records (6 active, 0 former)

●NSbrass.dnspod.net2026-02-26 → 2026-07-27 · 2 obs

● 2026-02-26 12:09:34
● 2026-07-27 14:42:10

●NSnail.dnspod.net2026-02-26 → 2026-07-27 · 2 obs

● 2026-02-26 12:09:34
● 2026-07-27 14:42:10

●MXmx1.feishu.cn2026-02-26 → 2026-07-27 · 2 obs

● 2026-02-26 12:09:34
● 2026-07-27 14:42:10

●MXmx2.feishu.cn2026-02-26 → 2026-07-27 · 2 obs

● 2026-02-26 12:09:34
● 2026-07-27 14:42:10

●MXmx3.feishu.cn2026-02-26 → 2026-07-27 · 2 obs

● 2026-02-26 12:09:34
● 2026-07-27 14:42:10

●A122.51.156.172026-02-26 → 2026-07-27 · 2 obs

● 2026-02-26 12:09:34
● 2026-07-27 14:42:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
itutool.com	nail.dnspod.net, brass.dnspod.net	-

✅ Authoritative Response

Server:1.12.0.1

NS records: nail.dnspod.net, brass.dnspod.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for itutool.com (unsigned zone)

⏱️ Timing

Total: 5031ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`122.51.156.17`
NS	2	`nail.dnspod.net, brass.dnspod.net`
MX	3	`mx1.feishu.cn (pri: 1), mx2.feishu.cn (pri: 5)...`
TXT	2	`verification-code-site-App_feishu=bOXXCt, v=spf1 +include:_netblocks.m.feishu.cn -`
SOA	1	`nail.dnspod.net freednsadmin.dnspod.com`

Analysis

IP Addresses

itutool.com directs to one IP number, which is 122.51.156.17.

Name Servers

itutool.com is served by two delegated name servers, brass.dnspod.net and nail.dnspod.net.

itutool.com has the same name server delegation as a number of other domains, such as fsjmdz.com, shijuezu.com, cao.rocks and two more.

itutool.com has a partial name server overlap with other domains — among them xn--ghq32fc39eq6b.cn and img-vision.com.

Host names resolving to 6 IP numbers:

brass.dnspod.net carries IP addresses 1.12.0.1, 1.13.76.35 and 36.155.149.35, with 3 other addresses beyond those.

nail.dnspod.net carries IP addresses 1.12.0.4, 1.14.119.35 and 111.13.13.35, with 3 other addresses beyond those.

Mail Servers

itutool.com has three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

itutool.com shares at least some of its mail servers with other domains — for example dexmal.com, popjoyhk.com, aoxika.com and two more.

Hosts with three IP address records:

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

Hosts with two IP numbers each:

mx2.feishu.cn maps to two IP addresses — 101.126.58.225 and 122.14.229.0.

Hosts that resolve to one IP address:

mx1.feishu.cn points to the IP address 52.220.106.220.

These two host names — mx3.feishu.cn and mx1.feishu.cn — each point to 52.220.106.220 IP addresses.

These two host names — mx3.feishu.cn and mx2.feishu.cn — each point to 101.126.58.225 IP addresses.

These two host names — mx3.feishu.cn and mx2.feishu.cn — each point to 122.14.229.0 IP addresses.