`guofeng.me`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:4e1^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:848e^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.4.225^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.132.142^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`grannbo.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2696^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grannbo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c296^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`grannbo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2296^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`grannbo.ns.cloudflare.com`
		A	108.162.194.150^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grannbo.ns.cloudflare.com`
		A	162.159.38.150^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grannbo.ns.cloudflare.com`
		A	172.64.34.150^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grannbo.ns.cloudflare.com`
NS	`jay.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b7b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c17b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:217b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jay.ns.cloudflare.com`
		A	108.162.193.123^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jay.ns.cloudflare.com`
		A	172.64.33.123^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jay.ns.cloudflare.com`
		A	173.245.59.123^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jay.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	`route1.mx.cloudflare.net`⁽³⁴⁾
		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`
MX	`route3.mx.cloudflare.net`⁽⁹⁶⁾
		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`
TXT	`apple-domain=07TIuebqui3KZuPH`
TXT	`apple-domain=1uV7JshqjDgLfoAT`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.4.225, 172.67.132.142
		IPv6 hints	2606:4700:3033::6815:4e1, 2606:4700:3034::ac43:848e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=158, name=cloudflare-ech.com
SOA	`grannbo.ns.cloudflare.com`dns@cloudflare.com serial=2401726162

`me`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.me` ⭐
	NS	`a2.nic.me`
	NS	`b0.nic.me`
	NS	`b2.nic.me`
	NS	`c0.nic.me`
	SOA	`a0.nic.me`hostmaster@donuts.email serial=1776266182

Same first word

guofeng.cc

guofeng.org

guofeng.me

guofeng.com

guofeng.net

guofeng.name

Similar names

fenggou.com

fengguo.com.cn

DNS History

40 records (9 active, 31 former)

●NSgrannbo.ns.cloudflare.com2026-03-03 → 2026-04-15 · 3 obs

○ 2017-08-16 11:22:30
● 2026-03-03 02:03:02
● 2026-04-15 15:38:50

●NSjay.ns.cloudflare.com2026-03-03 → 2026-04-15 · 3 obs

○ 2017-08-16 11:22:30
● 2026-03-03 02:03:02
● 2026-04-15 15:38:50

○NSns-cloud-d1.googledomains.com2016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○NSns-cloud-d2.googledomains.com2016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○NSns-cloud-d3.googledomains.com2016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○NSns-cloud-d4.googledomains.com2016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○NSns1.he.net2015-06-10 → 2016-04-19 · 4 obs

● 2015-06-10 11:36:18
● 2016-04-19 21:31:14
○ 2016-11-29 16:56:30
○ 2026-04-15 15:38:50

○NSns2.he.net2015-06-10 → 2016-01-22 · 4 obs

● 2015-06-10 11:36:18
● 2016-01-22 07:09:06
○ 2016-04-19 21:31:14
○ 2026-04-15 15:38:50

○NSns3.he.net2015-06-10 → 2016-01-22 · 4 obs

● 2015-06-10 11:36:18
● 2016-01-22 07:09:06
○ 2016-04-19 21:31:14
○ 2026-04-15 15:38:50

○NSns4.he.net2015-06-10 → 2016-01-22 · 4 obs

● 2015-06-10 11:36:18
● 2016-01-22 07:09:06
○ 2016-04-19 21:31:14
○ 2026-04-15 15:38:50

○NSns5.he.net2015-06-10 → 2016-01-22 · 4 obs

● 2015-06-10 11:36:18
● 2016-01-22 07:09:06
○ 2016-04-19 21:31:14
○ 2026-04-15 15:38:50

○MXalt1.aspmx.l.google.com2016-01-22 → 2017-08-16 · 7 obs

○ 2015-10-25 22:06:12
● 2016-01-22 07:09:06
○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○MXalt2.aspmx.l.google.com2016-01-22 → 2017-08-16 · 7 obs

○ 2015-10-25 22:06:12
● 2016-01-22 07:09:06
○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○MXalt3.aspmx.l.google.com2016-01-22 → 2017-08-16 · 7 obs

○ 2015-10-25 22:06:12
● 2016-01-22 07:09:06
○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○MXalt4.aspmx.l.google.com2016-01-22 → 2017-08-16 · 7 obs

○ 2015-10-25 22:06:12
● 2016-01-22 07:09:06
○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○MXaspmx.l.google.com2016-01-22 → 2017-08-16 · 7 obs

○ 2015-10-25 22:06:12
● 2016-01-22 07:09:06
○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○MXmxbiz1.qq.com2015-06-10 → 2015-10-25 · 4 obs

● 2015-06-10 11:36:18
● 2015-10-25 22:06:12
○ 2016-01-22 07:09:06
○ 2026-04-15 15:38:50

○MXmxbiz2.qq.com2015-06-10 → 2015-10-25 · 4 obs

● 2015-06-10 11:36:18
● 2015-10-25 22:06:12
○ 2016-01-22 07:09:06
○ 2026-04-15 15:38:50

●MXroute1.mx.cloudflare.net2026-03-03 → 2026-04-15 · 3 obs

○ 2017-08-16 11:22:30
● 2026-03-03 02:03:02
● 2026-04-15 15:38:50

●MXroute2.mx.cloudflare.net2026-03-03 → 2026-04-15 · 3 obs

○ 2017-08-16 11:22:30
● 2026-03-03 02:03:02
● 2026-04-15 15:38:50

●MXroute3.mx.cloudflare.net2026-03-03 → 2026-04-15 · 3 obs

○ 2017-08-16 11:22:30
● 2026-03-03 02:03:02
● 2026-04-15 15:38:50

●A104.21.4.2252026-04-04 → 2026-04-15 · 3 obs

○ 2026-03-14 20:28:46
● 2026-04-04 02:07:16
● 2026-04-15 15:38:50

○A139.162.3.2352016-01-22 → 2016-01-22 · 4 obs

○ 2015-10-25 22:06:12
● 2016-01-22 07:09:06
○ 2016-04-19 21:31:14
○ 2026-04-15 15:38:50

○A172.66.40.1362026-03-03 → 2026-03-14 · 5 obs

○ 2017-08-16 11:22:30
● 2026-03-03 02:03:02
● 2026-03-14 20:28:46
○ 2026-04-04 02:07:16
○ 2026-04-15 15:38:50

○A172.66.43.1202026-03-03 → 2026-03-14 · 5 obs

○ 2017-08-16 11:22:30
● 2026-03-03 02:03:02
● 2026-03-14 20:28:46
○ 2026-04-04 02:07:16
○ 2026-04-15 15:38:50

●A172.67.132.1422026-04-04 → 2026-04-15 · 3 obs

○ 2026-03-14 20:28:46
● 2026-04-04 02:07:16
● 2026-04-15 15:38:50

○A2001:4860:4802:32::152016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○A2001:4860:4802:34::152016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○A2001:4860:4802:36::152016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○A2001:4860:4802:38::152016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○A216.239.32.212016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○A216.239.34.212016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○A216.239.36.212016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○A216.239.38.212016-11-29 → 2017-08-16 · 5 obs

○ 2016-04-19 21:31:14
● 2016-11-29 16:56:30
● 2017-08-16 11:22:30
○ 2026-03-03 02:03:02
○ 2026-04-15 15:38:50

○A2400:8900::f03c:91ff:fe70:ac1c2015-06-10 → 2015-10-25 · 4 obs

● 2015-06-10 11:36:18
● 2015-10-25 22:06:12
○ 2016-01-22 07:09:06
○ 2026-04-15 15:38:50

●A2606:4700:3033::6815:4e12026-04-04 → 2026-04-15 · 3 obs

○ 2026-03-14 20:28:46
● 2026-04-04 02:07:16
● 2026-04-15 15:38:50

●A2606:4700:3034::ac43:848e2026-04-04 → 2026-04-15 · 3 obs

○ 2026-03-14 20:28:46
● 2026-04-04 02:07:16
● 2026-04-15 15:38:50

○A2606:4700:3108::ac42:28882026-03-03 → 2026-03-14 · 5 obs

○ 2017-08-16 11:22:30
● 2026-03-03 02:03:02
● 2026-03-14 20:28:46
○ 2026-04-04 02:07:16
○ 2026-04-15 15:38:50

○A2606:4700:3108::ac42:2b782026-03-03 → 2026-03-14 · 5 obs

○ 2017-08-16 11:22:30
● 2026-03-03 02:03:02
● 2026-03-14 20:28:46
○ 2026-04-04 02:07:16
○ 2026-04-15 15:38:50

○CNAMEwww.guofeng.me2016-04-19 → 2016-04-19 · 3 obs

● 2016-04-19 21:31:14
○ 2016-11-29 16:56:30
○ 2026-04-15 15:38:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
me	b2.nic.me, a0.nic.me, b0.nic.me, a2.nic.me...	-
guofeng.me	jay.ns.cloudflare.com, grannbo.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.123

NS records: jay.ns.cloudflare.com, grannbo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for guofeng.me (unsigned zone)

⏱️ Timing

Total: 869ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.132.142, 104.21.4.225`
AAAA	2	`2606:4700:3033::6815:4e1, 2606:4700:3034::ac43:848e`
NS	2	`grannbo.ns.cloudflare.com, jay.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 25), route1.mx.cloudflare.net (pri: 34)...`
TXT	3	`apple-domain=07TIuebqui3KZuPH, apple-domain=1uV7JshqjDgLfoAT...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`grannbo.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

Four IP numbers are pointed to by guofeng.me: 2606:4700:3033::6815:4e1, 2606:4700:3034::ac43:848e, 104.21.4.225 and 172.67.132.142.

other host names including nephrologyworldwide.com, bannashencha.com, ecuras.com, edneicampos.com and www.gastrotraining.com share IP numbers with guofeng.me.

Name Servers

guofeng.me is delegated to two name servers grannbo.ns.cloudflare.com and jay.ns.cloudflare.com.

guofeng.me shares the same name server setup as other domains, for instance hoyvoy.com, tavs.it, sinoapruebasnopagas.com, paranacidade.org.br and comptables-mtl.ca.

guofeng.me at least partially shares name servers with other domains, for instance pngback.com, finansist.az, mummyvideogame.com, dallaschatlines.com and minifaktura.cz.

These name servers are commonly used with sonny.ns.cloudflare.com, dexter.ns.cloudflare.com and lily.ns.cloudflare.com.

Host names with six IP numbers:

Host name grannbo.ns.cloudflare.com points to: 2606:4700:50::a29f:2696, 2803:f800:50::6ca2:c296, 2a06:98c1:50::ac40:2296, 108.162.194.150, 162.159.38.150 and 172.64.34.150.

Host name jay.ns.cloudflare.com points to: 2606:4700:58::adf5:3b7b, 2803:f800:50::6ca2:c17b, 2a06:98c1:50::ac40:217b, 108.162.193.123, 172.64.33.123 and 173.245.59.123.

Mail Servers

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

guofeng.me shares some mail servers with other domains, at least partially, for instance match.ly, book-bound.net, wsrcreative.com, bax.tw and tongkhodolot.com.

Host names with six IP numbers:

Host name 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.

Host name 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.

Host name 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.

guofeng.me - robtex.com

guofeng.me

me

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`guofeng.me`

`me`