`discuz.com`

DNSSEC	⚠️ Not signed
A	49.234.132.54^{🇨🇳 TENCENT-NET-AP49.234.128.0/20}
NS	`ns1.qq.com` ⭐
		A	2402:4e00:c050:7a00::3^{🇨🇳 TENCENT-NET-AP2402:4e00:c050::/44}
		A	43.166.55.2^{🇸🇬 TENCENT-NET-AP-CN43.166.0.0/18 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	112.90.13.140^{🇨🇳 UNICOM-GuangZhou-IDC112.90.13.0/24}
		A	180.153.217.98^{🇨🇳 SHANGHAITELECOM180.153.217.0/24 SHIDC}
		A	183.60.116.2^{🇨🇳 CHINANET-BACKBONE183.0.0.0/10 Mega-II IDC}
		A	203.205.220.251^{🇭🇰 TENCENT-NET-AP-CN203.205.220.0/23 Proxy-registered route object}
NS	`ns2.qq.com`
		A	240e:974:e600:3ee::2^{🇨🇳 CHINANET-SCIDC-AS-AP240e:974:e600::/40 SICHUANIDC province network}
		A	1.12.96.10^{🇨🇳 TENCENT-NET-AP1.12.64.0/18}
		A	43.129.131.210^{🇸🇬 TENCENT-NET-AP-CN43.129.128.0/20}
		A	43.159.167.132^{🇺🇸 TENCENT-NET-AP-CN43.159.160.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	49.7.250.140^{🇨🇳 CHINA-149.7.192.0/18 China Telecom Beijing Co. Ltd.}
NS	`ns3.qq.com`
		A	43.134.249.22^{🇸🇬 TENCENT-NET-AP-CN43.134.224.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	43.159.167.11^{🇺🇸 TENCENT-NET-AP-CN43.159.160.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	120.204.7.98^{🇨🇳 CHINAMOBILE-CN120.204.0.0/20 CMI (Customer Route)}
			PTR	`(root)`
		A	120.233.255.187^{🇨🇳 CMNET-GuangDong-AP120.233.0.0/16 CMI (Customer Route)}
NS	`ns4.qq.com`
		A	43.130.172.24^{🇸🇬 TENCENT-NET-AP-CN43.130.160.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	43.161.3.25^{🇮🇳 TENCENT-NET-AP-CN43.161.0.0/18 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	116.169.38.235^{🇨🇳 CHINA169-Backbone116.169.0.0/16 route of Chinaunicom}
		A	125.39.202.11^{🇨🇳 CHINA169-Backbone125.36.0.0/14 CNC Group CHINA169 Tianjin Province Network}
			PTR	`no-data`
		A	183.60.116.5^{🇨🇳 CHINANET-BACKBONE183.0.0.0/10 Mega-II IDC}
MX	`mxbiz1.qq.com` ⭐
		A	203.205.147.218^{🇭🇰 TENCENT-NET-AP-CN203.205.147.0/24 Proxy-registered route object}
		A	203.205.232.191^{🇭🇰 TENCENT-NET-AP-CN203.205.232.0/23 Proxy-registered route object}
MX	`mxbiz2.qq.com`⁽¹⁰⁾
		A	203.205.232.191^{🇭🇰 TENCENT-NET-AP-CN203.205.232.0/23 Proxy-registered route object}
TXT	`vn2nvjsb8kmhdpksrtc0dzqbg30m26kx`
SOA	`ns1.qq.com`webmaster@qq.com serial=1305594613

`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

rank #167957 globally
rank #68753 in the tld
📈 Tranco rank: #557,440

Subdomains

addon.discuz.com

build-addon.discuz.com

addons.discuz.com

wsq.discuz.com

www.discuz.com

mail.discuz.com

upgrade.discuz.com

stat.discuz.com

go.discuz.com

Same first word

discuz.store

discuz.org

discuz.cc

discuz.run

discuz.cn

discuz.in.th

discuz.de

discuz.vip

discuz.info

discuz.it

discuz.1kapp.com

discuz.com

discuz.ren

discuz.chat

discuz.net

discuz.host

discuz.ir

discuz.ru

discuz.org.cn

discuz.eu

discuz.biz

Similar names

cizuds.com

sizucd.com

dizcus.com

DNS History

13 records (7 active, 6 former)

○NSns1.dns.com.cn2007-12-29 → 2007-12-29 · 3 obs

● 2007-12-29 14:57:30
○ 2015-08-25 15:20:18
○ 2026-03-12 04:53:38

●NSns1.qq.com2015-08-25 → 2026-03-12 · 3 obs

○ 2007-12-29 14:57:30
● 2015-08-25 15:20:18
● 2026-03-12 04:53:38

○NSns2.dns.com.cn2007-12-29 → 2007-12-29 · 3 obs

● 2007-12-29 14:57:30
○ 2015-08-25 15:20:18
○ 2026-03-12 04:53:38

●NSns2.qq.com2015-08-25 → 2026-03-12 · 3 obs

○ 2007-12-29 14:57:30
● 2015-08-25 15:20:18
● 2026-03-12 04:53:38

●NSns3.qq.com2015-08-25 → 2026-03-12 · 3 obs

○ 2007-12-29 14:57:30
● 2015-08-25 15:20:18
● 2026-03-12 04:53:38

●NSns4.qq.com2015-08-25 → 2026-03-12 · 3 obs

○ 2007-12-29 14:57:30
● 2015-08-25 15:20:18
● 2026-03-12 04:53:38

○MXmail.discuz.com2007-12-29 → 2007-12-29 · 3 obs

● 2007-12-29 14:57:30
○ 2015-08-25 15:20:18
○ 2026-03-12 04:53:38

●MXmxbiz1.qq.com2015-08-25 → 2026-03-12 · 3 obs

○ 2007-12-29 14:57:30
● 2015-08-25 15:20:18
● 2026-03-12 04:53:38

●MXmxbiz2.qq.com2015-08-25 → 2026-03-12 · 3 obs

○ 2007-12-29 14:57:30
● 2015-08-25 15:20:18
● 2026-03-12 04:53:38

○A157.148.32.602021-02-28 → 2021-10-20 · 5 obs

○ 2019-10-26 13:58:36
● 2021-02-28 10:18:56
● 2021-10-20 13:09:22
○ 2026-02-14 20:45:38
○ 2026-03-12 04:53:38

○A180.153.6.492015-08-25 → 2019-10-26 · 5 obs

○ 2007-12-29 14:57:30
● 2015-08-25 15:20:18
● 2019-10-26 13:58:36
○ 2021-02-28 10:18:56
○ 2026-03-12 04:53:38

●A49.234.132.542026-02-14 → 2026-03-12 · 3 obs

○ 2021-10-20 13:09:22
● 2026-02-14 20:45:38
● 2026-03-12 04:53:38

○A60.195.249.2192007-12-29 → 2007-12-29 · 3 obs

● 2007-12-29 14:57:30
○ 2015-08-25 15:20:18
○ 2026-03-12 04:53:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
discuz.com	ns1.qq.com, ns2.qq.com, ns3.qq.com, ns4.qq.com	20 records

✅ Authoritative Response

Server: 116.169.38.235

NS records: ns1.qq.com, ns2.qq.com, ns3.qq.com, ns4.qq.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for discuz.com (unsigned zone)

⏱️ Timing

Total: 3701ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`49.234.132.54`
NS	4	`ns4.qq.com, ns1.qq.com...`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
TXT	1	`vn2nvjsb8kmhdpksrtc0dzqbg30m26kx`
SOA	1	`ns1.qq.com webmaster.qq.com`

📌 Glue Records Collected

Total: 20

Out-of-bailiwick: 20 (ns1.qq.com, ns1.qq.com, ns1.qq.com...)

Analysis

Hierarchy

discuz.com is a parent of addon.discuz.com, build-addon.discuz.com, addons.discuz.com, wsq.discuz.com, www.discuz.com and a few other host names.

IP Addresses

discuz.com resolves to a single IP address: 49.234.132.54.

Name Servers

discuz.com is delegated to four name servers: ns1.qq.com, ns2.qq.com, ns3.qq.com and ns4.qq.com.

discuz.com at least partially shares name servers with other domains, including 424259818.qzone.qq.com, tencentapps.com, 1314.qq.com, acimg.cn and 1browser.net.

these name servers are commonly used with ns-tel1.qq.com, ns-cmn1.qq.com, ns-cnc1.qq.com and ns-os1.qq.com.

Host names with six IP numbers:

Host name ns1.qq.com points to: 2402:4e00:c050:7a00::3, 43.166.55.2, 112.90.13.140, 180.153.217.98, 183.60.116.2 and 203.205.220.251.

Host names with five IP numbers:

Host name ns2.qq.com points to: 240e:974:e600:3ee::2, 1.12.96.10, 43.129.131.210, 43.159.167.132 and 49.7.250.140.

Host name ns4.qq.com points to: 43.130.172.24, 43.161.3.25, 116.169.38.235, 125.39.202.11 and 183.60.116.5.

Host names with four IP numbers:

Host name ns3.qq.com points to: 43.134.249.22, 43.159.167.11, 120.204.7.98 and 120.233.255.187.

Mail Servers

discuz.com is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

discuz.com shares its mail server setup with other domains, including rh-fiber.com, toodaylab.com, intset.com, andromeda.hk and szdego.cn.

discuz.com shares some mail servers with other domains, for example llddl.com and shuaishou.com.

Host names with two IPs:

mxbiz1.qq.com points to 203.205.147.218 and 203.205.232.191.

Host names with one IP:

mxbiz2.qq.com points to 203.205.232.191.

Names pointing to 203.205.232.191:

mxbiz1.qq.com and mxbiz2.qq.com.

discuz.com - robtex.com

discuz.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`discuz.com`

`com`