`ct-by.com`

DNSSEC	⚠️ Not signed
A	145.223.77.129^{🇳🇱 IIHOS001145.223.72.0/21 HOSTINGER US}
NS	`dns17.hichina.com` ⭐
		A	2408:4009:501::25^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.110^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns18.hichina.com`
		A	2408:4009:501::26^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.108^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
MX	`mx1.hostinger.com` ⭐
		A	2606:4700:90:0:c1f8:f874:2386:b61f^{🇺🇸 Cloudflare2606:4700:90::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.65.182.103^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`mx2.hostinger.com` ⭐
		A	2606:4700:90:0:c1f8:f874:2386:b61f^{🇺🇸 Cloudflare2606:4700:90::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.65.182.103^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
TXT	`v=spf1 include:_spf.mail.hostinger.com ~all`
SOA	`dns17.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`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=1776200192

Same first word

ct-by.com

Similar names

by-ct.com

tc-by.cn

y-cbt.com

DNS History

9 records (5 active, 4 former)

●NSdns17.hichina.com2026-03-30 → 2026-04-14 · 3 obs

○ 2017-09-28 13:37:24
● 2026-03-30 19:20:22
● 2026-04-14 21:26:10

●NSdns18.hichina.com2026-03-30 → 2026-04-14 · 3 obs

○ 2017-09-28 13:37:24
● 2026-03-30 19:20:22
● 2026-04-14 21:26:10

○NSns1.xdomain.ne.jp2017-09-28 → 2017-09-28 · 3 obs

● 2017-09-28 13:37:24
○ 2026-03-30 19:20:22
○ 2026-04-14 21:26:10

○NSns2.xdomain.ne.jp2017-09-28 → 2017-09-28 · 3 obs

● 2017-09-28 13:37:24
○ 2026-03-30 19:20:22
○ 2026-04-14 21:26:10

○NSns3.xdomain.ne.jp2017-09-28 → 2017-09-28 · 3 obs

● 2017-09-28 13:37:24
○ 2026-03-30 19:20:22
○ 2026-04-14 21:26:10

●MXmx1.hostinger.com2026-03-30 → 2026-04-14 · 2 obs

● 2026-03-30 19:20:22
● 2026-04-14 21:26:10

●MXmx2.hostinger.com2026-03-30 → 2026-04-14 · 2 obs

● 2026-03-30 19:20:22
● 2026-04-14 21:26:10

●A145.223.77.1292026-03-30 → 2026-04-14 · 3 obs

○ 2017-09-28 13:37:24
● 2026-03-30 19:20:22
● 2026-04-14 21:26:10

○A153.254.133.1032017-09-28 → 2017-09-28 · 3 obs

● 2017-09-28 13:37:24
○ 2026-03-30 19:20:22
○ 2026-04-14 21:26:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ct-by.com	dns17.hichina.com, dns18.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.38

NS records: dns17.hichina.com, dns18.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ct-by.com (unsigned zone)

⏱️ Timing

Total: 540ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`145.223.77.129`
NS	2	`dns17.hichina.com, dns18.hichina.com`
MX	2	`mx2.hostinger.com (pri: 1), mx1.hostinger.com (pri: 1)`
TXT	1	`v=spf1 include:_spf.mail.hostinger.com ~`
SOA	1	`dns17.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns17.hichina.com, dns17.hichina.com, dns17.hichina.com...)

Analysis

IP Addresses

ct-by.com maps to IP address 145.223.77.129.

Other host names such as maclawran.com, argyle.org, maclawran.ca and finger-lickin.com share IP numbers with ct-by.com.

Name Servers

Two name servers dns17.hichina.com and dns18.hichina.com are delegated to ct-by.com.

ct-by.com uses the same name server configuration as other domains, such as louxia.cn, insucover.net, jiajiawang.cn, wxgov.cn and lifehack.com.cn.