`docs.tw`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3034::6815:204^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:8073^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.2.4^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.115^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elsa.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a6f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elsa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elsa.ns.cloudflare.com`
		A	108.162.192.111^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	172.64.32.111^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	173.245.58.111^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
NS	`henry.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bb0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`henry.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`henry.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`henry.ns.cloudflare.com`
		A	108.162.193.176^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`henry.ns.cloudflare.com`
		A	172.64.33.176^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`henry.ns.cloudflare.com`
		A	173.245.59.176^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`henry.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽²⁴⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽⁶⁶⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
TXT	`8a821e9edbed66366cbec8469379a8fff1891ed6`
TXT	`v=spf1 include:_spf.mx.cloudflare.net -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.2.4, 172.67.128.115
		IPv6 hints	2606:4700:3034::6815:204, 2606:4700:3037::ac43:8073
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=135, name=cloudflare-ech.com
SOA	`elsa.ns.cloudflare.com`dns@cloudflare.com serial=2400830818

`tw`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.tw` ⭐
	NS	`anytld.apnic.net` ⚠️ Not in parent delegation
	NS	`b.dns.tw`
	NS	`c.dns.tw`
	NS	`d.dns.tw`
	NS	`e.dns.tw`
	NS	`f.dns.tw`
	NS	`g.dns.tw`
	NS	`h.dns.tw`
	SOA	`a.dns.tw`snw@twnic.net.tw serial=2011003696

🔒 HSTS Preload (+subdomains)

Same first word

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docs.tel

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docs.school

docs.org.uk

docs.com

docs.wtf

docs.health

docs.wiki

docs.com.hk

docs.house

docs.bet

docs.li

docs.solutions

docs.vapor.cloud

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docs.nl

docs.ie

docs.pet

docs.rw

docs.co

docs.dev.br

docs.readthedocs.io

docs.kr

docs.bio

docs.com.tw

docs.es

docs.in

docs.co.il

docs.credit

docs.rs

docs.tw

docs.at

docs.ws

docs.lt

docs.org.ua

docs.earth

docs.com.ua

docs.onl

docs.zone

docs.ist

docs.cc

docs.ee

docs.com.cn

docs.cz

docs.com.es

docs.auth.us-east-1.amazoncognito.com

docs.casa

docs.biz

docs.me

docs.dev

docs.hu

docs.tv

docs.ch

docs.mn

docs.com.br

docs.nu

docs.life

docs.md

docs.new

docs.travel

docs.de

docs.homelinux.org

docs.studio

docs.se

docs.be

docs.info

docs.s3.amazonaws.com

docs.legal

docs.fr

docs.com.au

docs.today

docs.ms

docs.ca

docs.dk

docs.gl

docs.tips

docs.ph

docs.name

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docs.fish

docs.hypernode.io

docs.us

docs.wine

docs.net

docs

docs.ru

docs.googleapis.com

docs.cn

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ocds.fr

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DNS History

20 records (9 active, 11 former)

●NSelsa.ns.cloudflare.com2015-08-18 → 2026-04-23 · 2 obs

● 2015-08-18 09:31:40
● 2026-04-23 11:44:14

●NShenry.ns.cloudflare.com2015-08-18 → 2026-04-23 · 2 obs

● 2015-08-18 09:31:40
● 2026-04-23 11:44:14

○MXalt1.aspmx.l.google.com2015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 07:30:58
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

○MXalt2.aspmx.l.google.com2015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 07:30:58
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

○MXaspmx.l.google.com2015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 07:30:58
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

○MXaspmx2.googlemail.com2015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 07:30:58
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

○MXaspmx3.googlemail.com2015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 07:30:58
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

○MXaspmx4.googlemail.com2015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 07:30:58
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

○MXaspmx5.googlemail.com2015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 07:30:58
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

●MXroute1.mx.cloudflare.net2026-02-26 → 2026-04-23 · 3 obs

○ 2017-09-22 07:30:58
● 2026-02-26 20:12:10
● 2026-04-23 11:44:14

●MXroute2.mx.cloudflare.net2026-02-26 → 2026-04-23 · 3 obs

○ 2017-09-22 07:30:58
● 2026-02-26 20:12:10
● 2026-04-23 11:44:14

●MXroute3.mx.cloudflare.net2026-02-26 → 2026-04-23 · 3 obs

○ 2017-09-22 07:30:58
● 2026-02-26 20:12:10
● 2026-04-23 11:44:14

●A104.21.2.42026-02-26 → 2026-04-23 · 3 obs

○ 2017-09-22 08:28:20
● 2026-02-26 20:12:10
● 2026-04-23 11:44:14

○A104.27.190.1642015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 07:30:58
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

○A104.27.191.1642015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 07:30:58
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

●A172.67.128.1152026-02-26 → 2026-04-23 · 3 obs

○ 2017-09-22 08:28:20
● 2026-02-26 20:12:10
● 2026-04-23 11:44:14

○A2400:cb00:2048:1::681b:bea42015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 08:28:20
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

○A2400:cb00:2048:1::681b:bfa42015-08-18 → 2017-09-22 · 4 obs

● 2015-08-18 09:31:40
● 2017-09-22 08:28:20
○ 2026-02-26 20:12:10
○ 2026-04-23 11:44:14

●A2606:4700:3034::6815:2042026-02-26 → 2026-04-23 · 3 obs

○ 2017-09-22 08:28:20
● 2026-02-26 20:12:10
● 2026-04-23 11:44:14

●A2606:4700:3037::ac43:80732026-02-26 → 2026-04-23 · 3 obs

○ 2017-09-22 08:28:20
● 2026-02-26 20:12:10
● 2026-04-23 11:44:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tw	b.dns.tw, f.dns.tw, g.dns.tw, h.dns.tw...	15 records
docs.tw	henry.ns.cloudflare.com, elsa.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.176

NS records: henry.ns.cloudflare.com, elsa.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1202ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.2.4, 172.67.128.115`
AAAA	2	`2606:4700:3034::6815:204, 2606:4700:3037::ac43:8073`
NS	2	`elsa.ns.cloudflare.com, henry.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 15), route3.mx.cloudflare.net (pri: 24)...`
TXT	2	`8a821e9edbed66366cbec8469379a8fff1891ed6, v=spf1 include:_spf.mx.cloudflare.net -a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elsa.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 15

In-bailiwick: 13 (h.dns.tw, g.dns.tw, f.dns.tw...)

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

Analysis

IP Addresses

docs.tw resolves to four IP numbers: 2606:4700:3034::6815:204, 2606:4700:3037::ac43:8073, 104.21.2.4 and 172.67.128.115.

other host names for instance photonics-science.com, yesxby.com, dentaneva.com, pokercast.tv and mortgage.icalculator.info share IP numbers with docs.tw.

Name Servers

docs.tw is delegated to two name servers: elsa.ns.cloudflare.com and henry.ns.cloudflare.com.

docs.tw shares the same name server setup as other domains, for example best-practice-business.de, hearty.gift, tycaa.org, appsoda.net and tempnode.com.

docs.tw at least partially shares name servers with other domains, for instance hifiguides.com, vinewisehub.click, ooahs.com, exchange24x7.live and gayvzdz.work.

These name servers are commonly used with zainab.ns.cloudflare.com, jade.ns.cloudflare.com and trace.ns.cloudflare.com.

Host names with six IP numbers:

elsa.ns.cloudflare.com points to: 2606:4700:50::adf5:3a6f, 2803:f800:50::6ca2:c06f, 2a06:98c1:50::ac40:206f, 108.162.192.111, 172.64.32.111 and 173.245.58.111; henry.ns.cloudflare.com points to: 2606:4700:58::adf5:3bb0, 2803:f800:50::6ca2:c1b0, 2a06:98c1:50::ac40:21b0, 108.162.193.176, 172.64.33.176 and 173.245.59.176.

Mail Servers

docs.tw is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

docs.tw shares mail servers with other domains at least partially, including sharelov.com, lsshermanconsulting.com, thechictribe.com, moker-china.com and monfric.ca.

Host names with six IP numbers: route1.mx.cloudflare.net points to: 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13; route2.mx.cloudflare.net points to: 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19; route3.mx.cloudflare.net points to: 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25.

docs.tw - robtex.com

docs.tw

tw

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`docs.tw`

`tw`