grstech.com - dns.ninja

`grstech.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:56cc^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:88cd^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.86.204^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.136.205^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`erin.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a71^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c071^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`erin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2071^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`erin.ns.cloudflare.com`
		A	108.162.192.113^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	172.64.32.113^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	173.245.58.113^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
NS	`quentin.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c07^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c307^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`quentin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2307^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`quentin.ns.cloudflare.com`
		A	108.162.195.7^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
		A	162.159.44.7^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
		A	172.64.35.7^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
MX	`grstech-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c922::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl0pr02cu00702.inbound.protection.outlook.com`
		A	2a01:111:f403:c936::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy1pr05cu00400.inbound.protection.outlook.com`
		A	2a01:111:f403:f804::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr05cu00402.inbound.protection.outlook.com`
		A	2a01:111:f403:f907::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm1pr04cu00201.inbound.protection.outlook.com`
		A	52.101.9.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr04cu00205.inbound.protection.outlook.com`
		A	52.101.40.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy5pr03cu00300.inbound.protection.outlook.com`
		A	52.101.41.28^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01504.inbound.protection.outlook.com`
		A	52.101.41.58^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr02cu00102.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.86.204, 172.67.136.205
		IPv6 hints	2606:4700:3033::6815:56cc, 2606:4700:3033::ac43:88cd
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=103, name=cloudflare-ech.com
SOA	`erin.ns.cloudflare.com`dns@cloudflare.com serial=2408909215

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1783943437

Same first word

grstech.com

grstech.co.uk

Similar names

cgsehrt.de

gretsch.de

rgstech.com

gretsch.ca

gsrtech.info

gertsch.ch

chresgt.netlify.app

thcregs.com

gretsch.co.uk

hercstg.com

gretsch.com.au

gsrtech.com

gertsch.de

gretsch.com

gretsch.com.br

gretsch.jp

gertsch.li

thesrcg.com

gertsch.net

gretsch.eu

gretsch.name

gertsch.cc

srgtech.com

sgrtech.com

rgstech.co.uk

DNS History

18 records (7 active, 11 former)

●NSerin.ns.cloudflare.com2026-02-16 → 2026-07-13 · 3 obs

○ 2020-12-25 19:14:24
● 2026-02-16 03:13:38
● 2026-07-13 11:55:52

○NSns43.domaincontrol.com2015-08-04 → 2020-12-25 · 4 obs

● 2015-08-04 07:47:32
● 2020-12-25 19:14:24
○ 2026-02-16 03:13:38
○ 2026-07-13 11:55:52

○NSns44.domaincontrol.com2015-08-04 → 2020-12-25 · 4 obs

● 2015-08-04 07:47:32
● 2020-12-25 19:14:24
○ 2026-02-16 03:13:38
○ 2026-07-13 11:55:52

●NSquentin.ns.cloudflare.com2026-02-16 → 2026-07-13 · 3 obs

○ 2020-12-25 19:14:24
● 2026-02-16 03:13:38
● 2026-07-13 11:55:52

●MXgrstech-com.mail.protection.outlook.com2026-02-16 → 2026-07-13 · 3 obs

○ 2020-12-25 19:14:24
● 2026-02-16 03:13:38
● 2026-07-13 11:55:52

○MXmailstore1.secureserver.net2015-08-04 → 2020-12-25 · 4 obs

● 2015-08-04 07:47:32
● 2020-12-25 19:14:24
○ 2026-02-16 03:13:38
○ 2026-07-13 11:55:52

○MXsmtp.secureserver.net2015-08-04 → 2020-12-25 · 4 obs

● 2015-08-04 07:47:32
● 2020-12-25 19:14:24
○ 2026-02-16 03:13:38
○ 2026-07-13 11:55:52

●A104.21.86.2042026-02-16 → 2026-07-13 · 9 obs

○ 2020-12-25 19:14:24
● 2026-02-16 03:13:38
● 2026-04-13 08:58:58
○ 2026-05-14 07:31:16
● 2026-05-19 23:35:38
● 2026-06-07 19:46:44
○ 2026-06-18 16:15:40
● 2026-07-02 03:30:08
● 2026-07-13 11:55:52

●A172.67.136.2052026-02-16 → 2026-07-13 · 9 obs

○A188.114.96.02026-05-14 → 2026-06-18 · 7 obs

○ 2026-04-13 08:58:58
● 2026-05-14 07:31:16
○ 2026-05-19 23:35:38
○ 2026-06-07 19:46:44
● 2026-06-18 16:15:40
○ 2026-07-02 03:30:08
○ 2026-07-13 11:55:52

○A188.114.97.02026-05-14 → 2026-06-18 · 7 obs

○ 2026-04-13 08:58:58
● 2026-05-14 07:31:16
○ 2026-05-19 23:35:38
○ 2026-06-07 19:46:44
● 2026-06-18 16:15:40
○ 2026-07-02 03:30:08
○ 2026-07-13 11:55:52

○A2606:4700:3032::6815:56cc2026-02-16 → 2026-06-07 · 8 obs

○ 2020-12-25 19:14:24
● 2026-02-16 03:13:38
● 2026-04-13 08:58:58
○ 2026-05-14 07:31:16
● 2026-05-19 23:35:38
● 2026-06-07 19:46:44
○ 2026-06-18 16:15:40
○ 2026-07-13 11:55:52

●A2606:4700:3033::6815:56cc2026-07-02 → 2026-07-13 · 3 obs

○ 2026-06-18 16:15:40
● 2026-07-02 03:30:08
● 2026-07-13 11:55:52

●A2606:4700:3033::ac43:88cd2026-07-02 → 2026-07-13 · 3 obs

○ 2026-06-18 16:15:40
● 2026-07-02 03:30:08
● 2026-07-13 11:55:52

○A2606:4700:3034::ac43:88cd2026-02-16 → 2026-06-07 · 8 obs

○ 2020-12-25 19:14:24
● 2026-02-16 03:13:38
● 2026-04-13 08:58:58
○ 2026-05-14 07:31:16
● 2026-05-19 23:35:38
● 2026-06-07 19:46:44
○ 2026-06-18 16:15:40
○ 2026-07-13 11:55:52

○A2a06:98c1:3120::2026-05-14 → 2026-06-18 · 7 obs

○ 2026-04-13 08:58:58
● 2026-05-14 07:31:16
○ 2026-05-19 23:35:38
○ 2026-06-07 19:46:44
● 2026-06-18 16:15:40
○ 2026-07-02 03:30:08
○ 2026-07-13 11:55:52

○A2a06:98c1:3121::2026-05-14 → 2026-06-18 · 7 obs

○ 2026-04-13 08:58:58
● 2026-05-14 07:31:16
○ 2026-05-19 23:35:38
○ 2026-06-07 19:46:44
● 2026-06-18 16:15:40
○ 2026-07-02 03:30:08
○ 2026-07-13 11:55:52

○A68.178.194.732015-08-04 → 2020-12-25 · 4 obs

● 2015-08-04 07:47:32
● 2020-12-25 19:14:24
○ 2026-02-16 03:13:38
○ 2026-07-13 11:55:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
grstech.com	erin.ns.cloudflare.com, quentin.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.7

NS records: erin.ns.cloudflare.com, quentin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for grstech.com (unsigned zone)

⏱️ Timing

Total: 139ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.86.204, 172.67.136.205`
AAAA	2	`2606:4700:3033::ac43:88cd, 2606:4700:3033::6815:56cc`
NS	2	`erin.ns.cloudflare.com, quentin.ns.cloudflare.com`
MX	1	`grstech-com.mail.protection.outlook.com`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`erin.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (erin.ns.cloudflare.com, erin.ns.cloudflare.com, erin.ns.cloudflare.com...)

Analysis

IP Addresses

grstech.com has four IP addresses: 104.21.86.204, 172.67.136.205, 2606:4700:3033::6815:56cc and 2606:4700:3033::ac43:88cd.

hfguw.online, muslimaat.uz, www.lco.vn plus two other host names have IP numbers in common with grstech.com.

Name Servers

DNS delegation for grstech.com points to two name servers: erin.ns.cloudflare.com and quentin.ns.cloudflare.com.

The name server configuration of grstech.com is shared with other domains, for instance arabskoe-(0x706f726e)1.top, pluslayer.com, digital-marketing.jp and two others.

grstech.com partially shares its NS delegation with several other domains, including awghome.net, erbihou.org, atlsemi.com and two others.

These name servers regularly co-occur with the name servers lia.ns.cloudflare.com, lex.ns.cloudflare.com and ivan.ns.cloudflare.com.

Hosts with 6 IP addresses each:

erin.ns.cloudflare.com has IP addresses 108.162.192.113, 172.64.32.113 and 173.245.58.113, plus 3 other.

quentin.ns.cloudflare.com has IP addresses 108.162.195.7, 162.159.44.7 and 172.64.35.7, plus 3 other.

Mail Servers

grstech.com uses one mail server — grstech-com.mail.protection.outlook.com.

grstech-com.mail.protection.outlook.com has 8 IP addresses: 52.101.9.21, 52.101.40.0, 52.101.41.28 plus 5 more.