`it51.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:1910^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:dd91^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.25.16^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.221.145^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`celine.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2662^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`celine.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c262^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`celine.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2262^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`celine.ns.cloudflare.com`
		A	108.162.194.98^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`celine.ns.cloudflare.com`
		A	162.159.38.98^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`celine.ns.cloudflare.com`
		A	172.64.34.98^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`celine.ns.cloudflare.com`
NS	`dion.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b9c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dion.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dion.ns.cloudflare.com`
		A	108.162.193.156^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
		A	172.64.33.156^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
		A	173.245.59.156^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.25.16, 172.67.221.145
		IPv6 hints	2606:4700:3031::6815:1910, 2606:4700:3035::ac43:dd91
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=116, name=cloudflare-ech.com
SOA	`celine.ns.cloudflare.com`dns@cloudflare.com serial=2403019739

`net`

	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=1778694521

Same first word

it51.com

it51.cn

it51.net

it51.eu

it51.de

Similar names

it15.com

it15.de

51it.wang

51it.net.cn

ti51.com

51ti.com

15it.cn

51ti.cn

it15.ru

t15i.com

51ti.org

15ti.com

i15t.com

DNS History

20 records (6 active, 14 former)

○NSa.share-dns.com2026-04-04 → 2026-04-29 · 5 obs

○ 2017-02-12 22:27:34
● 2026-04-04 00:19:26
● 2026-04-29 20:55:24
○ 2026-05-02 21:45:18
○ 2026-05-13 17:50:50

○NSa10.share-dns.com2026-04-04 → 2026-04-29 · 5 obs

○ 2017-02-12 22:27:34
● 2026-04-04 00:19:26
● 2026-04-29 20:55:24
○ 2026-05-02 21:45:18
○ 2026-05-13 17:50:50

○NSb.share-dns.net2026-04-04 → 2026-04-29 · 5 obs

○ 2017-02-12 22:27:34
● 2026-04-04 00:19:26
● 2026-04-29 20:55:24
○ 2026-05-02 21:45:18
○ 2026-05-13 17:50:50

○NSb10.share-dns.net2026-04-04 → 2026-04-29 · 5 obs

○ 2017-02-12 22:27:34
● 2026-04-04 00:19:26
● 2026-04-29 20:55:24
○ 2026-05-02 21:45:18
○ 2026-05-13 17:50:50

●NSceline.ns.cloudflare.com2026-05-02 → 2026-05-13 · 3 obs

○ 2026-04-29 20:55:24
● 2026-05-02 21:45:18
● 2026-05-13 17:50:50

●NSdion.ns.cloudflare.com2026-05-02 → 2026-05-13 · 3 obs

○ 2026-04-29 20:55:24
● 2026-05-02 21:45:18
● 2026-05-13 17:50:50

○NSns13.xincache.com2015-06-25 → 2017-02-12 · 4 obs

● 2015-06-25 22:18:16
● 2017-02-12 22:27:34
○ 2026-04-04 00:19:26
○ 2026-05-13 17:50:50

○NSns14.xincache.com2015-06-25 → 2017-02-12 · 4 obs

● 2015-06-25 22:18:16
● 2017-02-12 22:27:34
○ 2026-04-04 00:19:26
○ 2026-05-13 17:50:50

○MXmxbiz1.qq.com2015-06-25 → 2017-02-12 · 4 obs

● 2015-06-25 22:18:16
● 2017-02-12 22:27:34
○ 2026-04-04 00:19:26
○ 2026-05-13 17:50:50

○MXmxbiz2.qq.com2015-06-25 → 2017-02-12 · 4 obs

● 2015-06-25 22:18:16
● 2017-02-12 22:27:34
○ 2026-04-04 00:19:26
○ 2026-05-13 17:50:50

●A104.21.25.162026-05-02 → 2026-05-13 · 3 obs

○ 2026-04-29 20:55:24
● 2026-05-02 21:45:18
● 2026-05-13 17:50:50

○A119.10.36.2462016-01-31 → 2017-02-12 · 7 obs

○ 2016-01-25 10:59:02
● 2016-01-31 01:39:30
○ 2016-02-02 03:48:00
○ 2016-04-26 05:46:16
● 2017-02-12 22:27:34
○ 2026-04-04 00:19:26
○ 2026-05-13 17:50:50

○A123.108.109.2042015-11-05 → 2016-01-25 · 5 obs

○ 2015-06-25 22:18:16
● 2015-11-05 00:24:28
● 2016-01-25 10:59:02
○ 2016-01-31 01:39:30
○ 2026-05-13 17:50:50

○A123.108.109.2052016-02-02 → 2016-04-26 · 5 obs

○ 2016-01-31 01:39:30
● 2016-02-02 03:48:00
● 2016-04-26 05:46:16
○ 2017-02-12 22:27:34
○ 2026-05-13 17:50:50

○A123.249.56.202015-11-05 → 2016-01-25 · 5 obs

○ 2015-06-25 22:18:16
● 2015-11-05 00:24:28
● 2016-01-25 10:59:02
○ 2016-01-31 01:39:30
○ 2026-05-13 17:50:50

○A160.202.101.2422026-04-04 → 2026-04-29 · 5 obs

○ 2017-02-12 22:27:34
● 2026-04-04 00:19:26
● 2026-04-29 20:55:24
○ 2026-05-02 21:45:18
○ 2026-05-13 17:50:50

●A172.67.221.1452026-05-02 → 2026-05-13 · 3 obs

○ 2026-04-29 20:55:24
● 2026-05-02 21:45:18
● 2026-05-13 17:50:50

○A174.139.182.1632015-06-25 → 2015-06-25 · 3 obs

● 2015-06-25 22:18:16
○ 2015-11-05 00:24:28
○ 2026-05-13 17:50:50

●A2606:4700:3031::6815:19102026-05-02 → 2026-05-13 · 3 obs

○ 2026-04-29 20:55:24
● 2026-05-02 21:45:18
● 2026-05-13 17:50:50

●A2606:4700:3035::ac43:dd912026-05-02 → 2026-05-13 · 3 obs

○ 2026-04-29 20:55:24
● 2026-05-02 21:45:18
● 2026-05-13 17:50:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	m.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...	-
it51.net	dion.ns.cloudflare.com, celine.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.98

NS records: dion.ns.cloudflare.com, celine.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for it51.net (unsigned zone)

⏱️ Timing

Total: 2527ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.25.16, 172.67.221.145`
AAAA	2	`2606:4700:3035::ac43:dd91, 2606:4700:3031::6815:1910`
NS	2	`celine.ns.cloudflare.com, dion.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`celine.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

it51.net maps to four IP numbers: 2606:4700:3031::6815:1910, 2606:4700:3035::ac43:dd91, 104.21.25.16 and 172.67.221.145.

other host names include caseyyang.org, www.drinkteatravel.com, contable.info, viniinfosys.com and school-etsy.shop; they share IP numbers with it51.net.

Name Servers

Two name servers celine.ns.cloudflare.com and dion.ns.cloudflare.com handle the delegation for it51.net.

it51.net shares the same name server setup as other domains, for instance hrddc.cn, tsdzk.com, softsic.com, fjtntn.com and cohenbattist97926116.top.

it51.net at least partially shares name servers with other domains, for instance owjdr3.com, goldensgoodair.com, zovithivellum.com, cafelista.com and dihdih.cn.

These name servers are commonly used with miles.ns.cloudflare.com, josephine.ns.cloudflare.com, ivan.ns.cloudflare.com, jeff.ns.cloudflare.com and jamie.ns.cloudflare.com.

Six IP addresses per host:

celine.ns.cloudflare.com points to 2606:4700:50::a29f:2662, 2803:f800:50::6ca2:c262, 2a06:98c1:50::ac40:2262, 108.162.194.98, 162.159.38.98 and 172.64.34.98; dion.ns.cloudflare.com points to 2606:4700:58::adf5:3b9c, 2803:f800:50::6ca2:c19c, 2a06:98c1:50::ac40:219c, 108.162.193.156, 172.64.33.156 and 173.245.59.156

it51.net - robtex.com

it51.net

net

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`it51.net`

`net`