`104tutor.com.tw`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:b09a^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:5384^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.83.132^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.176.154^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`chad.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b52^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chad.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c152^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`chad.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2152^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`chad.ns.cloudflare.com`
		A	108.162.193.82^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chad.ns.cloudflare.com`
		A	172.64.33.82^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chad.ns.cloudflare.com`
		A	173.245.59.82^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chad.ns.cloudflare.com`
NS	`princess.ns.cloudflare.com`
		A	2606:4700:50::a29f:2611^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`princess.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c211^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`princess.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2211^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`princess.ns.cloudflare.com`
		A	108.162.194.17^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`princess.ns.cloudflare.com`
		A	162.159.38.17^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`princess.ns.cloudflare.com`
		A	172.64.34.17^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`princess.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.83.132, 172.67.176.154
		IPv6 hints	2606:4700:3034::ac43:b09a, 2606:4700:3037::6815:5384
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=151, name=cloudflare-ech.com
SOA	`chad.ns.cloudflare.com`dns@cloudflare.com serial=2403474485

`com.tw`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.twnic.net.tw` ⭐
	NS	`anytld.apnic.net`
	NS	`b.twnic.net.tw`
	NS	`c.twnic.net.tw`
	NS	`d.twnic.net.tw`
	NS	`e.twnic.net.tw`
	NS	`f.twnic.net.tw`
	NS	`g.twnic.net.tw`
	NS	`h.dns.tw`
	NS	`h.twnic.net.tw`
	SOA	`a.twnic.net.tw`snw@twnic.net.tw serial=2006349041

rank #832362 globally
rank #1874 in the tld
WOT: SAFE (46/100)
WOT: SAFE (58/100)

Same first word

104tutor.com

104tutor.com.tw

DNS History

13 records (6 active, 7 former)

●NSchad.ns.cloudflare.com2026-05-10 → 2026-05-11 · 3 obs

○ 2017-08-22 12:36:40
● 2026-05-10 17:55:08
● 2026-05-11 03:18:02

○NSdns.104.com.tw2015-08-22 → 2016-06-13 · 7 obs

● 2015-08-22 20:13:12
● 2016-01-27 05:07:32
○ 2016-04-02 17:13:42
● 2016-06-01 20:56:56
● 2016-06-13 14:53:28
○ 2017-01-16 12:23:42
○ 2026-05-11 03:18:02

○NSdns1.104.com.tw2015-08-22 → 2016-06-01 · 8 obs

● 2015-08-22 20:13:12
○ 2015-10-27 11:35:40
● 2015-11-20 11:26:02
○ 2015-11-24 00:57:46
● 2016-01-27 05:07:32
● 2016-06-01 20:56:56
○ 2016-06-13 14:53:28
○ 2026-05-11 03:18:02

○NSext-ns.104.com.tw2015-10-27 → 2017-08-22 · 10 obs

○ 2015-08-22 20:13:12
● 2015-10-27 11:35:40
● 2015-11-24 00:57:46
○ 2016-01-27 05:07:32
● 2016-04-02 17:13:42
○ 2016-06-01 20:56:56
● 2016-06-13 14:53:28
● 2017-08-22 12:36:40
○ 2026-05-10 17:55:08
○ 2026-05-11 03:18:02

●NSprincess.ns.cloudflare.com2026-05-10 → 2026-05-11 · 3 obs

○ 2017-08-22 12:36:40
● 2026-05-10 17:55:08
● 2026-05-11 03:18:02

○MXmail.104tutor.com.tw2015-08-22 → 2017-08-22 · 4 obs

● 2015-08-22 20:13:12
● 2017-08-22 12:36:40
○ 2026-05-10 17:55:08
○ 2026-05-11 03:18:02

●A104.21.83.1322026-05-10 → 2026-05-11 · 3 obs

○ 2017-08-22 12:36:40
● 2026-05-10 17:55:08
● 2026-05-11 03:18:02

○A122.147.53.392015-10-27 → 2016-04-02 · 7 obs

○ 2015-08-22 20:13:12
● 2015-10-27 11:35:40
○ 2015-11-20 11:26:02
○ 2016-01-27 05:07:32
● 2016-04-02 17:13:42
○ 2016-06-01 20:56:56
○ 2026-05-11 03:18:02

○A122.147.53.592015-11-20 → 2017-08-22 · 8 obs

○ 2015-10-27 11:35:40
● 2015-11-20 11:26:02
● 2016-01-27 05:07:32
○ 2016-04-02 17:13:42
● 2016-06-01 20:56:56
● 2017-08-22 12:36:40
○ 2026-05-10 17:55:08
○ 2026-05-11 03:18:02

●A172.67.176.1542026-05-10 → 2026-05-11 · 3 obs

○ 2017-08-22 12:36:40
● 2026-05-10 17:55:08
● 2026-05-11 03:18:02

○A202.8.15.2372015-08-22 → 2015-08-22 · 3 obs

● 2015-08-22 20:13:12
○ 2015-10-27 11:35:40
○ 2026-05-11 03:18:02

●A2606:4700:3034::ac43:b09a2026-05-10 → 2026-05-11 · 3 obs

○ 2017-08-22 12:36:40
● 2026-05-10 17:55:08
● 2026-05-11 03:18:02

●A2606:4700:3037::6815:53842026-05-10 → 2026-05-11 · 3 obs

○ 2017-08-22 12:36:40
● 2026-05-10 17:55:08
● 2026-05-11 03:18:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tw	g.dns.tw, anytld.apnic.net, e.dns.tw, a.dns.tw...	16 records
104tutor.com.tw	chad.ns.cloudflare.com, princess.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.82

NS records: chad.ns.cloudflare.com, princess.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 104tutor.com.tw (unsigned zone)

⏱️ Timing

Total: 509ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.176.154, 104.21.83.132`
AAAA	2	`2606:4700:3034::ac43:b09a, 2606:4700:3037::6815:5384`
NS	2	`chad.ns.cloudflare.com, princess.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`chad.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 16

In-bailiwick: 14 (g.dns.tw, e.dns.tw, e.dns.tw...)

Out-of-bailiwick: 2 (anytld.apnic.net, anytld.apnic.net)

Analysis

IP Addresses

104tutor.com.tw points to four IP numbers: 2606:4700:3034::ac43:b09a, 2606:4700:3037::6815:5384, 104.21.83.132 and 172.67.176.154.

Other host names, for instance autoprog.info, nathansselfie.com, pshq.xvxvd.xyz, zhongtuipeixun.com and dangxicun.com share IP numbers with 104tutor.com.tw.

Name Servers

104tutor.com.tw is delegated to two name servers: chad.ns.cloudflare.com and princess.ns.cloudflare.com.

104tutor.com.tw uses the same name server setup as other domains, for instance yachten.de.com, benkers.io, monthe.agency, ultranet.eu.com and 104sense.com.tw.

104tutor.com.tw shares name servers with other domains at least partially, for instance eoht.info, hendro.my.id, kmkhyf3.com, indiaxhpost.cc and ux7.com.

These name servers are commonly used with mark.ns.cloudflare.com, quentin.ns.cloudflare.com, monroe.ns.cloudflare.com and pedro.ns.cloudflare.com.

Host names with six IP numbers: chad.ns.cloudflare.com points to 2606:4700:58::adf5:3b52, 2803:f800:50::6ca2:c152, 2a06:98c1:50::ac40:2152, 108.162.193.82, 172.64.33.82 and 173.245.59.82; princess.ns.cloudflare.com points to 2606:4700:50::a29f:2611, 2803:f800:50::6ca2:c211, 2a06:98c1:50::ac40:2211, 108.162.194.17, 162.159.38.17 and 172.64.34.17.

104tutor.com.tw - robtex.com

104tutor.com.tw

com.tw

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`104tutor.com.tw`

`com.tw`