`api.simmed.vn`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:49ac^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:a44d^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.73.172^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.164.77^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.73.172, 172.67.164.77
		IPv6 hints	2606:4700:3031::6815:49ac, 2606:4700:3035::ac43:a44d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=134, name=cloudflare-ech.com

`simmed.vn`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:49ac^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:a44d^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.73.172^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.164.77^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alec.ns.cloudflare.com` ⭐
NS	`gloria.ns.cloudflare.com`
MX	`simmed-vn.mail.protection.outlook.com` ⭐
TXT	`MS=ms64763138`
TXT	`google-site-verification=2cx3PUlEh-Dg2B29btN6u4xMBiZ-0XiaFPmXg1of2aE`
TXT	`google-site-verification=DlDJoimQxFvzNuqIIzwrIGxU3SClQUbkmOeZmARKfVg`
TXT	`google-site-verification=T1UDJo0TUJGcJnPGCI2ha2XuwAh9OBFsinjgO5b3mXQ`
TXT	`google-site-verification=TU62kwFNpfY1xVpcLa8FIk3CxRhRbFCVZETyLTJkSjw`
TXT	`google-site-verification=qZy6-TKEsS9V-8vwlZKYdyFhspsmGLFDiiKBGMkeezc`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.73.172, 172.67.164.77
		IPv6 hints	2606:4700:3031::6815:49ac, 2606:4700:3035::ac43:a44d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=134, name=cloudflare-ech.com
SOA	`alec.ns.cloudflare.com`dns@cloudflare.com serial=2410684406

Same first word

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DNS History

14 records (4 active, 10 former)

●A104.21.73.1722026-05-01 → 2026-07-29 · 40 obs

● 2026-05-01 09:10:28
○ 2026-05-01 09:52:38
● 2026-05-01 10:53:04
● 2026-05-01 17:14:34
○ 2026-05-01 17:46:24
○ 2026-05-03 08:14:14
● 2026-05-04 01:52:36
● 2026-05-04 04:22:36
○ 2026-05-04 07:55:38
○ 2026-05-07 11:24:28
● 2026-05-07 13:17:18
○ 2026-05-07 21:16:44
○ 2026-05-10 19:46:28
● 2026-05-11 05:02:30
○ 2026-05-11 06:04:14
○ 2026-05-18 10:28:52
● 2026-05-18 15:00:00
○ 2026-05-19 00:48:16
○ 2026-05-19 10:06:38
● 2026-05-19 20:05:24
○ 2026-05-20 15:47:10
○ 2026-05-24 18:44:42
● 2026-05-25 02:12:02
○ 2026-05-25 04:39:48
● 2026-05-25 07:53:42
○ 2026-05-25 14:33:12
○ 2026-05-29 00:09:08
● 2026-05-29 10:52:54
● 2026-05-29 13:31:44
○ 2026-05-29 22:52:54
○ 2026-05-31 05:28:00
● 2026-05-31 16:58:48
● 2026-06-01 14:43:34
○ 2026-06-02 11:45:02
○ 2026-06-17 01:43:52
● 2026-06-17 02:16:46
○ 2026-06-18 17:50:36
● 2026-06-20 08:34:18
○ 2026-06-20 12:02:58
● 2026-07-29 20:14:44

●A172.67.164.772026-05-01 → 2026-07-29 · 40 obs

○A188.114.96.02026-05-01 → 2026-07-27 · 64 obs

○ 2026-05-01 09:10:28
● 2026-05-01 09:52:38
○ 2026-05-01 10:53:04
○ 2026-05-01 17:14:34
● 2026-05-01 17:46:24
● 2026-05-03 08:14:14
○ 2026-05-04 01:52:36
○ 2026-05-04 04:22:36
● 2026-05-04 07:55:38
● 2026-05-07 11:24:28
○ 2026-05-07 13:17:18
● 2026-05-07 21:16:44
● 2026-05-10 19:46:28
○ 2026-05-11 05:02:30
● 2026-05-11 06:04:14
● 2026-05-18 10:28:52
○ 2026-05-18 15:00:00
● 2026-05-19 00:48:16
● 2026-05-19 10:06:38
○ 2026-05-19 20:05:24
● 2026-05-20 15:47:10
● 2026-05-21 22:07:26
○ 2026-05-22 08:22:28
● 2026-05-22 21:13:40
● 2026-05-24 18:44:42
○ 2026-05-25 02:12:02
○ 2026-05-25 07:53:42
● 2026-05-25 14:33:12
● 2026-05-29 00:09:08
○ 2026-05-29 10:52:54
○ 2026-05-29 13:31:44
● 2026-05-29 22:52:54
● 2026-05-31 05:28:00
○ 2026-05-31 16:58:48
○ 2026-06-02 22:56:16
● 2026-06-03 09:20:26
● 2026-06-06 15:02:10
○ 2026-06-07 04:11:20
● 2026-06-08 07:34:14
● 2026-06-16 02:17:58
○ 2026-06-17 01:43:52
○ 2026-06-17 02:16:46
● 2026-06-18 17:50:36
○ 2026-06-20 03:51:58
● 2026-06-20 12:02:58
○ 2026-06-21 20:38:14
● 2026-06-22 02:29:26
○ 2026-06-24 08:36:08
● 2026-06-25 04:11:18
○ 2026-06-29 01:03:18
● 2026-06-29 10:31:32
○ 2026-07-01 13:58:48
● 2026-07-01 19:52:46
○ 2026-07-09 05:53:28
● 2026-07-09 18:37:48
○ 2026-07-15 19:18:58
● 2026-07-16 04:50:00
○ 2026-07-19 20:50:56
● 2026-07-20 22:21:22
○ 2026-07-21 03:25:36
● 2026-07-21 12:06:02
○ 2026-07-26 22:06:08
● 2026-07-27 03:25:12
○ 2026-07-29 20:14:44

○A188.114.96.42026-05-22 → 2026-07-26 · 37 obs

○ 2026-05-21 22:07:26
● 2026-05-22 08:22:28
○ 2026-05-22 21:13:40
○ 2026-05-25 02:12:02
● 2026-05-25 04:39:48
○ 2026-05-25 07:53:42
○ 2026-06-01 14:43:34
● 2026-06-02 11:45:02
● 2026-06-02 22:56:16
○ 2026-06-03 09:20:26
○ 2026-06-06 15:02:10
● 2026-06-07 04:11:20
○ 2026-06-08 07:34:14
○ 2026-06-16 02:17:58
● 2026-06-17 01:43:52
○ 2026-06-17 02:16:46
● 2026-06-20 03:51:58
○ 2026-06-20 08:34:18
● 2026-06-21 20:38:14
○ 2026-06-22 02:29:26
● 2026-06-24 08:36:08
○ 2026-06-25 04:11:18
● 2026-06-29 01:03:18
○ 2026-06-29 10:31:32
● 2026-07-01 13:58:48
○ 2026-07-01 19:52:46
● 2026-07-09 05:53:28
○ 2026-07-09 18:37:48
● 2026-07-15 19:18:58
○ 2026-07-16 04:50:00
● 2026-07-19 20:50:56
○ 2026-07-20 22:21:22
● 2026-07-21 03:25:36
○ 2026-07-21 12:06:02
● 2026-07-26 22:06:08
○ 2026-07-27 03:25:12
○ 2026-07-29 20:14:44

○A188.114.97.02026-05-01 → 2026-07-27 · 64 obs

○A188.114.97.42026-05-22 → 2026-07-26 · 37 obs

○A2606:4700:3030::6815:49ac2026-05-01 → 2026-06-20 · 45 obs

● 2026-05-01 09:10:28
○ 2026-05-01 09:52:38
● 2026-05-01 10:53:04
● 2026-05-01 17:14:34
○ 2026-05-01 17:46:24
○ 2026-05-03 02:30:26
● 2026-05-03 08:14:14
● 2026-05-04 04:22:36
○ 2026-05-04 07:55:38
○ 2026-05-04 11:15:50
● 2026-05-05 11:55:50
○ 2026-05-07 00:24:48
● 2026-05-07 04:58:18
○ 2026-05-07 11:24:28
● 2026-05-07 13:17:18
○ 2026-05-07 21:16:44
○ 2026-05-10 19:46:28
● 2026-05-11 05:02:30
○ 2026-05-11 06:04:14
○ 2026-05-14 13:18:52
● 2026-05-14 22:52:48
○ 2026-05-15 09:23:10
○ 2026-05-16 08:44:02
● 2026-05-16 19:10:24
● 2026-05-17 04:47:40
○ 2026-05-17 07:09:22
○ 2026-05-24 18:44:42
● 2026-05-25 02:12:02
○ 2026-05-25 04:39:48
● 2026-05-25 07:53:42
○ 2026-05-25 14:33:12
○ 2026-05-29 00:09:08
● 2026-05-29 10:52:54
● 2026-05-29 13:31:44
○ 2026-05-29 22:52:54
○ 2026-05-31 05:28:00
● 2026-05-31 16:58:48
● 2026-06-01 14:43:34
○ 2026-06-02 11:45:02
○ 2026-06-17 01:43:52
● 2026-06-17 02:16:46
○ 2026-06-18 17:50:36
● 2026-06-20 08:34:18
○ 2026-06-20 12:02:58
○ 2026-07-29 20:14:44

●A2606:4700:3031::6815:49ac2026-07-29 → 2026-07-29 · 2 obs

○ 2026-07-27 03:25:12
● 2026-07-29 20:14:44

●A2606:4700:3035::ac43:a44d2026-07-29 → 2026-07-29 · 2 obs

○ 2026-07-27 03:25:12
● 2026-07-29 20:14:44

○A2606:4700:3036::ac43:a44d2026-05-01 → 2026-06-20 · 45 obs

○A2a06:98c1:3120::2026-05-01 → 2026-07-27 · 60 obs

○ 2026-05-01 09:10:28
● 2026-05-01 09:52:38
○ 2026-05-01 10:53:04
○ 2026-05-01 17:14:34
● 2026-05-01 17:46:24
● 2026-05-03 02:30:26
○ 2026-05-03 08:14:14
○ 2026-05-04 04:22:36
● 2026-05-04 07:55:38
● 2026-05-04 11:15:50
○ 2026-05-05 11:55:50
● 2026-05-07 00:24:48
○ 2026-05-07 04:58:18
● 2026-05-07 11:24:28
○ 2026-05-07 13:17:18
● 2026-05-07 21:16:44
● 2026-05-10 19:46:28
○ 2026-05-11 05:02:30
● 2026-05-11 06:04:14
● 2026-05-14 13:18:52
○ 2026-05-14 22:52:48
● 2026-05-15 09:23:10
● 2026-05-16 08:44:02
○ 2026-05-16 19:10:24
○ 2026-05-17 04:47:40
● 2026-05-17 07:09:22
● 2026-05-22 21:13:40
○ 2026-05-23 05:15:56
● 2026-05-23 13:12:30
● 2026-05-24 18:44:42
○ 2026-05-25 02:12:02
○ 2026-05-25 07:53:42
● 2026-05-25 14:33:12
● 2026-05-29 00:09:08
○ 2026-05-29 10:52:54
○ 2026-05-29 13:31:44
● 2026-05-29 22:52:54
● 2026-05-31 05:28:00
○ 2026-05-31 16:58:48
○ 2026-06-02 11:45:02
● 2026-06-02 22:56:16
● 2026-06-16 02:17:58
○ 2026-06-17 01:43:52
○ 2026-06-17 02:16:46
● 2026-06-18 17:50:36
○ 2026-06-20 03:51:58
● 2026-06-20 12:02:58
○ 2026-06-24 08:36:08
● 2026-06-25 04:11:18
○ 2026-07-01 19:52:46
● 2026-07-01 23:50:42
○ 2026-07-09 05:53:28
● 2026-07-09 18:37:48
○ 2026-07-21 03:25:36
● 2026-07-21 12:06:02
○ 2026-07-25 07:57:04
● 2026-07-25 09:38:38
○ 2026-07-26 22:06:08
● 2026-07-27 03:25:12
○ 2026-07-29 20:14:44

○A2a06:98c1:3120::42026-05-23 → 2026-07-26 · 27 obs

○ 2026-05-22 21:13:40
● 2026-05-23 05:15:56
○ 2026-05-23 13:12:30
○ 2026-05-25 02:12:02
● 2026-05-25 04:39:48
○ 2026-05-25 07:53:42
○ 2026-06-01 14:43:34
● 2026-06-02 11:45:02
○ 2026-06-02 22:56:16
○ 2026-06-16 02:17:58
● 2026-06-17 01:43:52
○ 2026-06-17 02:16:46
● 2026-06-20 03:51:58
○ 2026-06-20 08:34:18
● 2026-06-24 08:36:08
○ 2026-06-25 04:11:18
● 2026-07-01 19:52:46
○ 2026-07-01 23:50:42
● 2026-07-09 05:53:28
○ 2026-07-09 18:37:48
● 2026-07-21 03:25:36
○ 2026-07-21 12:06:02
● 2026-07-25 07:57:04
○ 2026-07-25 09:38:38
● 2026-07-26 22:06:08
○ 2026-07-27 03:25:12
○ 2026-07-29 20:14:44

○A2a06:98c1:3121::2026-05-01 → 2026-07-27 · 60 obs

○A2a06:98c1:3121::42026-05-23 → 2026-07-26 · 27 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	h.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn, g.dns-servers.vn...	15 records
simmed.vn	alec.ns.cloudflare.com, gloria.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.59

NS records: alec.ns.cloudflare.com, gloria.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simmed.vn (unsigned zone)

⏱️ Timing

Total: 852ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.73.172, 172.67.164.77`
AAAA	2	`2606:4700:3031::6815:49ac, 2606:4700:3035::ac43:a44d`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 15

In-bailiwick: 15 (a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn...)

Analysis

IP Addresses

api.simmed.vn resolves to four IP addresses: 104.21.73.172, 172.67.164.77, 2606:4700:3031::6815:49ac and 2606:4700:3035::ac43:a44d.

20minut.ua, eau-thermale.cn, www.architekturausmiechu.pl and two other host names share IP numbers with api.simmed.vn.

api.simmed.vn - robtex.com

api.simmed.vn

simmed.vn