classup.com - dns.ninja

`classup.com`

DNSSEC	⚠️ Not signed
A	47.253.153.236^{🇺🇸 Alibaba-Cloud47.253.128.0/17 Alibaba CLoud}
NS	`ns-1147.awsdns-15.org` ⭐
		A	2600:9000:5304:7b00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
		A	205.251.196.123^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1147.awsdns-15.org`
NS	`ns-1679.awsdns-17.co.uk`
		A	2600:9000:5306:8f00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1679.awsdns-17.co.uk`
		A	205.251.198.143^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1679.awsdns-17.co.uk`
NS	`ns-362.awsdns-45.com`
		A	2600:9000:5301:6a00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
		A	205.251.193.106^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-362.awsdns-45.com`
NS	`ns-725.awsdns-26.net`
		A	2600:9000:5302:d500::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
		A	205.251.194.213^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-725.awsdns-26.net`
MX	`m1.feishu.cn` ⭐
TXT	`google-site-verification=0gCgDup2dYPstT5Xvuw1qIXxrqYxNrwaNSGjfiVQ0Aw`
TXT	`google-site-verification=p8oMkUZaBAsjG020azVS7bJaNhFHIuOxhYAV3ZtnRqU`
TXT	`google-site-verification=wprnSbDIDZmxWMmj29bGTwRR2waNqPdebi8Z6lpRaWo`
TXT	`v=spf1 +include:_netblocks.m.feishu.cn +include:classup.com ~all`
SOA	`ns-1147.awsdns-15.org`awsdns-hostmaster@amazon.com serial=1

`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=1783708062

WOT: SAFE (60/100)
📈 Tranco rank: #162,790

Subdomains

frog.classup.com

www.classup.com

outer-nginx-ue.classup.com

outer-nginx.classup.com

clog.classup.com

outer-nginx-uw.classup.com

Same first word

classup.co

classup.io

classup.net

classup.com

classup.it

classup.kr

Similar names

usaplsc.com

plcsusa.org

upclass.ru

lsucaps.com

scapsul.com.br

acsplus.com

upclass.ai

upclass.biz

culpass.com

upclass.eu

sacplus.ca

scaplus.com

plusacs.com

plcsusa.com

acsplus.net

splusca.com

apsuslc.com

ascplus.pl

scaplus.com.br

acsplus.com.br

acsplus.be

upclass.nl

capsuls.com

sacplus.mobi

ascplus.com

upclass.net

upclass.com.br

scpulsa.com.ph

upclass.de

upclass.cn

sacplus.com

scalpus.com

plcsusa.net

upclass.it

upclass.com

DNS History

27 records (6 active, 21 former)

○NSa.ns36.de2016-06-13 → 2016-06-13 · 4 obs

○ 2016-03-12 06:34:02
● 2016-06-13 10:50:26
○ 2016-12-09 13:13:10
○ 2026-07-10 18:36:20

○NSb.ns36.de2016-06-13 → 2016-06-13 · 4 obs

○ 2016-03-12 06:34:02
● 2016-06-13 10:50:26
○ 2016-12-09 13:13:10
○ 2026-07-10 18:36:20

○NSdns1.name-services.com2016-12-09 → 2016-12-09 · 4 obs

○ 2016-06-13 10:50:26
● 2016-12-09 13:13:10
○ 2017-11-10 13:05:24
○ 2026-07-10 18:36:20

○NSdns2.name-services.com2016-12-09 → 2016-12-09 · 4 obs

○ 2016-06-13 10:50:26
● 2016-12-09 13:13:10
○ 2017-11-10 13:05:24
○ 2026-07-10 18:36:20

○NSdns3.name-services.com2016-12-09 → 2016-12-09 · 4 obs

○ 2016-06-13 10:50:26
● 2016-12-09 13:13:10
○ 2017-11-10 13:05:24
○ 2026-07-10 18:36:20

○NSdns4.name-services.com2016-12-09 → 2016-12-09 · 4 obs

○ 2016-06-13 10:50:26
● 2016-12-09 13:13:10
○ 2017-11-10 13:05:24
○ 2026-07-10 18:36:20

○NSdns5.name-services.com2016-12-09 → 2016-12-09 · 4 obs

○ 2016-06-13 10:50:26
● 2016-12-09 13:13:10
○ 2017-11-10 13:05:24
○ 2026-07-10 18:36:20

●NSns-1147.awsdns-15.org2026-02-23 → 2026-07-10 · 3 obs

○ 2017-11-10 13:05:24
● 2026-02-23 16:25:46
● 2026-07-10 18:36:20

●NSns-1679.awsdns-17.co.uk2026-02-23 → 2026-07-10 · 3 obs

○ 2017-11-10 13:05:24
● 2026-02-23 16:25:46
● 2026-07-10 18:36:20

●NSns-362.awsdns-45.com2026-02-23 → 2026-07-10 · 3 obs

○ 2017-11-10 13:05:24
● 2026-02-23 16:25:46
● 2026-07-10 18:36:20

●NSns-725.awsdns-26.net2026-02-23 → 2026-07-10 · 3 obs

○ 2017-11-10 13:05:24
● 2026-02-23 16:25:46
● 2026-07-10 18:36:20

○NSns.gabia.co.kr2015-05-25 → 2016-03-12 · 4 obs

● 2015-05-25 11:26:30
● 2016-03-12 06:34:02
○ 2016-06-13 10:50:26
○ 2026-07-10 18:36:20

○NSns.gabia.co.kr.classup.com2015-05-25 → 2016-03-12 · 4 obs

● 2015-05-25 11:26:30
● 2016-03-12 06:34:02
○ 2016-06-13 10:50:26
○ 2026-07-10 18:36:20

○NSns.gabia.net2015-05-25 → 2016-03-12 · 4 obs

● 2015-05-25 11:26:30
● 2016-03-12 06:34:02
○ 2016-06-13 10:50:26
○ 2026-07-10 18:36:20

○NSns1.dewaweb.com2017-11-10 → 2017-11-10 · 4 obs

○ 2016-12-09 13:13:10
● 2017-11-10 13:05:24
○ 2026-02-23 16:25:46
○ 2026-07-10 18:36:20

○NSns1.gabia.co.kr2015-05-25 → 2016-03-12 · 4 obs

● 2015-05-25 11:26:30
● 2016-03-12 06:34:02
○ 2016-06-13 10:50:26
○ 2026-07-10 18:36:20

○NSns2.dewaweb.com2017-11-10 → 2017-11-10 · 4 obs

○ 2016-12-09 13:13:10
● 2017-11-10 13:05:24
○ 2026-02-23 16:25:46
○ 2026-07-10 18:36:20

○NSns3.dewaweb.com2017-11-10 → 2017-11-10 · 4 obs

○ 2016-12-09 13:13:10
● 2017-11-10 13:05:24
○ 2026-02-23 16:25:46
○ 2026-07-10 18:36:20

●MXm1.feishu.cn2026-02-23 → 2026-07-10 · 3 obs

○ 2017-11-10 13:05:24
● 2026-02-23 16:25:46
● 2026-07-10 18:36:20

○MXmailgw.ns36.de2016-06-13 → 2016-06-13 · 3 obs

● 2016-06-13 10:50:26
○ 2016-12-09 13:13:10
○ 2026-07-10 18:36:20

○MXmx1.dewaspamguard.com2017-11-10 → 2017-11-10 · 4 obs

○ 2016-12-09 13:13:10
● 2017-11-10 13:05:24
○ 2026-02-23 16:25:46
○ 2026-07-10 18:36:20

○MXmx2.dewaspamguard.com2017-11-10 → 2017-11-10 · 4 obs

○ 2016-12-09 13:13:10
● 2017-11-10 13:05:24
○ 2026-02-23 16:25:46
○ 2026-07-10 18:36:20

○A203.114.75.2502017-11-10 → 2017-11-10 · 4 obs

○ 2016-12-09 13:13:10
● 2017-11-10 13:05:24
○ 2026-02-23 16:25:46
○ 2026-07-10 18:36:20

○A211.206.123.1392015-05-25 → 2016-03-12 · 4 obs

● 2015-05-25 11:26:30
● 2016-03-12 06:34:02
○ 2016-06-13 10:50:26
○ 2026-07-10 18:36:20

●A47.253.153.2362026-02-23 → 2026-07-10 · 3 obs

○ 2017-11-10 13:05:24
● 2026-02-23 16:25:46
● 2026-07-10 18:36:20

○A69.64.147.2432016-12-09 → 2016-12-09 · 4 obs

○ 2016-06-13 10:50:26
● 2016-12-09 13:13:10
○ 2017-11-10 13:05:24
○ 2026-07-10 18:36:20

○A72.52.4.902016-06-13 → 2016-06-13 · 4 obs

○ 2016-03-12 06:34:02
● 2016-06-13 10:50:26
○ 2016-12-09 13:13:10
○ 2026-07-10 18:36:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, j.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net...	-
classup.com	ns-725.awsdns-26.net, ns-362.awsdns-45.com, ns-1679.awsdns-17.co.uk, ns-1147.awsdns-15.org	2 records

✅ Authoritative Response

Server:205.251.194.213

NS records: ns-725.awsdns-26.net, ns-362.awsdns-45.com, ns-1679.awsdns-17.co.uk, ns-1147.awsdns-15.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classup.com (unsigned zone)

⏱️ Timing

Total: 497ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.253.153.236`
NS	4	`ns-1147.awsdns-15.org, ns-1679.awsdns-17.co.uk...`
MX	1	`m1.feishu.cn (pri: 10)`
TXT	4	`google-site-verification=0gCgDup2dYPstT5, google-site-verification=p8oMkUZaBAsjG02...`
SOA	1	`ns-1147.awsdns-15.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-362.awsdns-45.com, ns-362.awsdns-45.com)

Analysis

Hierarchy

classup.com is a parent domain; its children include frog.classup.com, www.classup.com, outer-nginx-ue.classup.com, outer-nginx.classup.com, clog.classup.com and a few other host names.

IP Addresses

classup.com resolves to just one IP address, 47.253.153.236.

There are other host names — alb-r8lf38t7txcm2nnqjv.us-east-1.alb.aliyuncs.com among them — that share IP numbers with classup.com.

Name Servers

The NS records for classup.com point to four name servers: ns-362.awsdns-45.com, ns-725.awsdns-26.net, ns-1147.awsdns-15.org and ns-1679.awsdns-17.co.uk.

classup.com partially shares its NS delegation with several other domains, including beatrizatdinnermovie.com, riei-manyoken.com, yeezycommunicator.tech and two others.

ns-362.awsdns-45.com, ns-725.awsdns-26.net, ns-1147.awsdns-15.org and ns-1679.awsdns-17.co.uk each carry two IP addresses. ns-362.awsdns-45.com has 205.251.193.106 and 2600:9000:5301:6a00::1; ns-725.awsdns-26.net has 205.251.194.213 and 2600:9000:5302:d500::1; ns-1147.awsdns-15.org has 205.251.196.123 and 2600:9000:5304:7b00::1; ns-1679.awsdns-17.co.uk has 205.251.198.143 and 2600:9000:5306:8f00::1.

Mail Servers

The sole mail server for classup.com is m1.feishu.cn.

Among the domains sharing a mail server setup with classup.com are tango.cn, x-sure.co, 92cms.com and two others.

classup.com has mail servers in common with other domains — for example fjdynamics.com, o5g.net and wukongsch.com.