isync.tw - dns.ninja

`isync.tw`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3031::6815:5da0^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:d411^{🇺🇸 Cloudflare2606:4700:3034::/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	`_dc-mx.abf8b9c41efa.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 ip4:103.17.8.56 include:_spf.eee.tw +a +mx +ip4:103.17.8.60 ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.93.160, 172.67.212.17
		IPv6 hints	2606:4700:3031::6815:5da0, 2606:4700:3034::ac43:d411
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=14, name=cloudflare-ech.com
SOA	`brenda.ns.cloudflare.com`dns@cloudflare.com serial=2405832035

`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 serial=2011018582

🔒 HSTS Preload (+subdomains)

Same first word

isync.hu

isync.tw

isync.in

isync.org

isync.online

isync.net

isync.co.kr

isync.se

isync.io

isync.cn

isync.com

isync.de

isync.eu

isync.site

isync.ro

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synic.co.kr

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DNS History

11 records (7 active, 4 former)

●NSbrenda.ns.cloudflare.com2026-02-18 → 2026-06-04 · 2 obs

● 2026-02-18 05:41:38
● 2026-06-04 08:01:40

●NStrevor.ns.cloudflare.com2026-02-18 → 2026-06-04 · 2 obs

● 2026-02-18 05:41:38
● 2026-06-04 08:01:40

●MX_dc-mx.abf8b9c41efa.isync.tw2026-02-18 → 2026-06-04 · 2 obs

● 2026-02-18 05:41:38
● 2026-06-04 08:01:40

●A104.21.93.1602026-02-18 → 2026-06-04 · 8 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

●A172.67.212.172026-02-18 → 2026-06-04 · 8 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

○A188.114.96.02026-04-06 → 2026-05-06 · 7 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

○A188.114.97.02026-04-06 → 2026-05-06 · 7 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

●A2606:4700:3031::6815:5da02026-02-18 → 2026-06-04 · 8 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

●A2606:4700:3034::ac43:d4112026-02-18 → 2026-06-04 · 8 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

○A2a06:98c1:3120::2026-04-06 → 2026-05-06 · 7 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

○A2a06:98c1:3121::2026-04-06 → 2026-05-06 · 7 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

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tw	a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw...	-
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: 1008ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.93.160, 172.67.212.17`
AAAA	2	`2606:4700:3031::6815:5da0, 2606:4700:3034::ac43:d411`
NS	2	`brenda.ns.cloudflare.com, trevor.ns.cloudflare.com`
MX	1	`_dc-mx.abf8b9c41efa.isync.tw (pri: 0)`
TXT	2	`google-site-verification=CZ0LLMwSPZou7O1, v=spf1 ip4:103.17.8.56 include:_spf.eee.`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brenda.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

isync.tw points to 4 IP addresses — 104.21.93.160, 172.67.212.17, 2606:4700:3031::6815:5da0 and 2606:4700:3034::ac43:d411.

intherooms.com, bdronline.com, aerohawkcatering.com 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, texture.biz, govo.co.il and two others.

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

Hosts with 6 IP addresses each:

The hostname brenda.ns.cloudflare.com resolves to 108.162.192.77, 172.64.32.77, 173.245.58.77 and three additional IP addresses.

The hostname trevor.ns.cloudflare.com resolves to 108.162.195.154, 162.159.44.154, 172.64.35.154 and three additional IP addresses.

Mail Servers

isync.tw uses one mail server — _dc-mx.abf8b9c41efa.isync.tw.

_dc-mx.abf8b9c41efa.isync.tw has exactly one IP number: 103.17.8.59.