isync.tw - dns.ninja

`isync.tw`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3033::ac43:d411^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:5da0^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.93.160^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.212.17^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`brenda.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a4d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenda.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c04d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brenda.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:204d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brenda.ns.cloudflare.com`
		A	108.162.192.77^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenda.ns.cloudflare.com`
		A	172.64.32.77^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenda.ns.cloudflare.com`
		A	173.245.58.77^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenda.ns.cloudflare.com`
NS	`trevor.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c9a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`trevor.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c39a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`trevor.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:239a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`trevor.ns.cloudflare.com`
		A	108.162.195.154^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`trevor.ns.cloudflare.com`
		A	162.159.44.154^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`trevor.ns.cloudflare.com`
		A	172.64.35.154^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`trevor.ns.cloudflare.com`
MX	`mail.isync.tw` ⭐
		A	103.17.8.59^{🇹🇼 YUANJHEN-TW103.17.8.0/23 Taiwan Network Information Center 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist.}
			PTR	`cp45.g-dns.com`
TXT	`google-site-verification=CZ0LLMwSPZou7O1eWGvWtYlll8OZrbkOYX2KByHf2xw`
TXT	`v=spf1 ip4:103.17.8.59 include:_spf.eee.tw +a +mx ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.93.160, 172.67.212.17
		IPv6 hints	2606:4700:3033::ac43:d411, 2606:4700:3037::6815:5da0
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=161, name=cloudflare-ech.com
SOA	`brenda.ns.cloudflare.com`dns@cloudflare.com serial=2411778848

`tw`

	DNSSEC	🔒 Signed (DS record present)
	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 2011-05-07 #82

🔒 HSTS Preload (+subdomains)

Subdomains

mail.isync.tw

Same first word

isync.hu

isync.tw

isync.in

isync.org

isync.online

isync.net

isync.co.kr

isync.ca

isync.se

isync.io

isync.ru

isync.cn

isync.com

isync.de

isync.eu

isync.info

isync.site

isync.ro

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isnyc.com

cinsy.com

ysinc.co.jp

sycin.cn

ycnsi.com

sincy.com

synic.nl

syicn.cn

nicsy.com

icsny.us

nysci.net

icsny.org

nysic.space

syinc.com

yincs.com

nycsi.com

csiny.com

synic.co.kr

nyics.com

incys.com

ysinc.com

csyin.com

synic.ch

synic.net

incsy.com

ynsic.com

synic.com.my

yinsc.com

synci.com

cisny.org

ysinc.net

isycn.de

iscny.com

snicy.com

icysn.com

cnsyi.com

syinc.net

nysci.org

sincy.com.cn

insyc.com

synic.asia

syinc.us

sycin.cl

ycins.com

iscny.co

cynis.com

synci.co

sincy.net

csiny.de

nysci.com

nyics.org

scyin.cn

cnyis.com

nicys.de

icyns.com

scyin.com

cyins.com

sinyc.com

cisny.com

DNS History

14 records (7 active, 7 former)

●NSbrenda.ns.cloudflare.com2026-02-18 → 2026-08-14 · 2 obs

● 2026-02-18 05:41:38
● 2026-08-14 08:14:46

●NStrevor.ns.cloudflare.com2026-02-18 → 2026-08-14 · 2 obs

● 2026-02-18 05:41:38
● 2026-08-14 08:14:46

○MX_dc-mx.abf8b9c41efa.isync.tw2026-02-18 → 2026-06-17 · 4 obs

● 2026-02-18 05:41:38
● 2026-06-17 20:52:02
○ 2026-07-08 16:12:56
○ 2026-08-14 08:14:46

●MXmail.isync.tw2026-07-08 → 2026-08-14 · 3 obs

○ 2026-06-17 20:52:02
● 2026-07-08 16:12:56
● 2026-08-14 08:14:46

●A104.21.93.1602026-02-18 → 2026-08-14 · 12 obs

● 2026-02-18 05:41:38
● 2026-03-29 04:58:30
○ 2026-04-06 13:25:38
● 2026-04-17 08:08:14
● 2026-04-29 18:22:34
○ 2026-05-06 08:38:02
● 2026-05-13 22:45:42
● 2026-06-04 08:01:40
○ 2026-06-12 09:37:10
○ 2026-06-17 20:52:02
● 2026-07-08 16:12:56
● 2026-08-14 08:14:46

●A172.67.212.172026-02-18 → 2026-08-14 · 12 obs

○A188.114.96.02026-04-06 → 2026-06-17 · 11 obs

○ 2026-03-29 04:58:30
● 2026-04-06 13:25:38
○ 2026-04-17 08:08:14
○ 2026-04-29 18:22:34
● 2026-05-06 08:38:02
○ 2026-05-13 22:45:42
○ 2026-06-04 08:01:40
● 2026-06-12 09:37:10
● 2026-06-17 20:52:02
○ 2026-07-08 16:12:56
○ 2026-08-14 08:14:46

○A188.114.97.02026-04-06 → 2026-06-17 · 11 obs

○A2606:4700:3031::6815:5da02026-02-18 → 2026-06-04 · 10 obs

●A2606:4700:3033::ac43:d4112026-07-08 → 2026-08-14 · 3 obs

○ 2026-06-17 20:52:02
● 2026-07-08 16:12:56
● 2026-08-14 08:14:46

○A2606:4700:3034::ac43:d4112026-02-18 → 2026-06-04 · 10 obs

●A2606:4700:3037::6815:5da02026-07-08 → 2026-08-14 · 3 obs

○ 2026-06-17 20:52:02
● 2026-07-08 16:12:56
● 2026-08-14 08:14:46

○A2a06:98c1:3120::2026-04-06 → 2026-06-17 · 11 obs

○A2a06:98c1:3121::2026-04-06 → 2026-06-17 · 11 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tw	a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw...	16 records
isync.tw	trevor.ns.cloudflare.com, brenda.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.154

NS records: trevor.ns.cloudflare.com, brenda.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1034ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.212.17, 104.21.93.160`
AAAA	2	`2606:4700:3037::6815:5da0, 2606:4700:3033::ac43:d411`
NS	2	`brenda.ns.cloudflare.com, trevor.ns.cloudflare.com`
MX	1	`mail.isync.tw (pri: 0)`
TXT	2	`google-site-verification=CZ0LLMwSPZou7O1, v=spf1 ip4:103.17.8.59 include:_spf.eee.`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brenda.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 16

In-bailiwick: 14 (a.dns.tw, a.dns.tw, b.dns.tw...)

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

Analysis

Hierarchy

isync.tw is the parent zone for mail.isync.tw.

IP Addresses

isync.tw resolves to four IP addresses: 104.21.93.160, 172.67.212.17, 2606:4700:3033::ac43:d411 and 2606:4700:3037::6815:5da0.

vintage.photos, velvetmartenco.digital, bdgwin1.vip plus two other host names have IP numbers in common with isync.tw.

Name Servers

DNS delegation for isync.tw points to two name servers: brenda.ns.cloudflare.com and trevor.ns.cloudflare.com.

The name server configuration of isync.tw is shared with other domains, for instance rizlum.com, myheadachetracker.com, weiwie.online and two others.

isync.tw partially shares its NS delegation with several other domains, including inccnd.com, govo.co.il, 2olive.it and two others.

The name servers barbara.ns.cloudflare.com, kay.ns.cloudflare.com, hans.ns.cloudflare.com and monika.ns.cloudflare.com are often found in use alongside these name servers.

Hosts with 6 IP addresses each:

brenda.ns.cloudflare.com has IP addresses 108.162.192.77, 172.64.32.77 and 173.245.58.77, plus 3 other.

trevor.ns.cloudflare.com has IP addresses 108.162.195.154, 162.159.44.154 and 172.64.35.154, plus 3 other.

Mail Servers

isync.tw uses one mail server — mail.isync.tw.

mail.isync.tw has exactly one IP number: 103.17.8.59.