`vtroffice.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:31a2^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:a4f6^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.49.162^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.164.246^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`maya.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ac2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maya.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0c2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`maya.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20c2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`maya.ns.cloudflare.com`
		A	108.162.192.194^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maya.ns.cloudflare.com`
		A	172.64.32.194^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maya.ns.cloudflare.com`
		A	173.245.58.194^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maya.ns.cloudflare.com`
NS	`paul.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b87^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c187^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`paul.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2187^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`paul.ns.cloudflare.com`
		A	108.162.193.135^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
		A	172.64.33.135^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
		A	173.245.59.135^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
MX	`mx.spamexperts.com` ⭐
		A	2001:550:2:61::2fc:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
		A	38.89.254.156^{🇺🇸 AS1663338.89.254.0/23}
			PTR	`fe1-r2-in.ch03.l.antispamcloud.com`
MX	`fallbackmx.spamexperts.eu`⁽²⁰⁾
		A	2001:550:2:3::62:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
			PTR	`fe2-r2-in.la10.l.antispamcloud.com`
		A	2001:550:2:61::2fc:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
		A	2001:550:2:78::ca:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
			PTR	`fe3-r2-in.atl06.l.antispamcloud.com`
		A	38.71.16.244^{🇺🇸 AS1663338.71.16.0/24}
			PTR	`fe2-r2-in.la10.l.antispamcloud.com`
		A	38.89.254.156^{🇺🇸 AS1663338.89.254.0/23}
			PTR	`fe1-r2-in.ch03.l.antispamcloud.com`
		A	38.101.250.150^{🇺🇸 AS1663338.101.250.0/24}
			PTR	`fe3-r2-in.atl06.l.antispamcloud.com`
MX	`lastmx.spamexperts.net`⁽³⁰⁾
		A	2001:550:2:3::62:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
			PTR	`fe2-r2-in.la10.l.antispamcloud.com`
		A	2001:550:2:61::2fc:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
		A	2001:978:2:7::162:100^{🇩🇪 COGENT2001:978::/32 C.C.D. Cogent Communications Deutschland GmbH}
			PTR	`fe1-r3-in.fra02.l.antispamcloud.com`
		A	2001:978:2:2c::137:100^{🇳🇱 COGENT2001:978::/32 C.C.D. Cogent Communications Deutschland GmbH}
			PTR	`fe2-r3-in.ams14.l.antispamcloud.com`
		A	38.71.16.244^{🇺🇸 AS1663338.71.16.0/24}
			PTR	`fe2-r2-in.la10.l.antispamcloud.com`
		A	38.89.254.156^{🇺🇸 AS1663338.89.254.0/23}
			PTR	`fe1-r2-in.ch03.l.antispamcloud.com`
		A	149.13.75.27^{🇩🇪 AS16633149.13.75.0/24 Registered for Cogent Communications Customer - N-ABLE CLOUD GMBH}
			PTR	`fe1-r3-in.fra02.l.antispamcloud.com`
		A	154.59.104.23^{🇳🇱 COGENT154.59.104.0/24 Registered for Cogent Communications Customer - N-ABLE CLOUD GMBH}
			PTR	`fe2-r3-in.ams14.l.antispamcloud.com`
TXT	`v=spf1 include:spf.antispamcloud.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.49.162, 172.67.164.246
		IPv6	2606:4700:3031::6815:31a2, 2606:4700:3037::ac43:a4f6
SOA	`maya.ns.cloudflare.com`dns@cloudflare.com serial=2396322396

`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=1771291435

DNS History

16 records (9 active, 7 former)

●NSmaya.ns.cloudflare.com2026-03-05 → 2026-03-05 · 2 obs

○ 2017-09-30 09:45:12
● 2026-03-05 21:32:48

○NSns10.hostinglotus.net2015-08-21 → 2017-09-30 · 3 obs

● 2015-08-21 05:34:34
● 2017-09-30 09:45:12
○ 2026-03-05 21:32:48

○NSns9.hostinglotus.net2015-08-21 → 2017-09-30 · 3 obs

● 2015-08-21 05:34:34
● 2017-09-30 09:45:12
○ 2026-03-05 21:32:48

●NSpaul.ns.cloudflare.com2026-03-05 → 2026-03-05 · 2 obs

○ 2017-09-30 09:45:12
● 2026-03-05 21:32:48

○MXcloud-mail-mx1.thaidatahosting.com2017-09-30 → 2017-09-30 · 3 obs

○ 2016-09-11 05:37:06
● 2017-09-30 09:45:12
○ 2026-03-05 21:32:48

●MXfallbackmx.spamexperts.eu2026-03-05 → 2026-03-05 · 2 obs

○ 2017-09-30 09:45:12
● 2026-03-05 21:32:48

●MXlastmx.spamexperts.net2026-03-05 → 2026-03-05 · 2 obs

○ 2017-09-30 09:45:12
● 2026-03-05 21:32:48

○MXmail.vtroffice.com2015-08-21 → 2016-03-24 · 4 obs

● 2015-08-21 05:34:34
● 2016-03-24 23:03:30
○ 2016-09-11 05:37:06
○ 2026-03-05 21:32:48

●MXmx.spamexperts.com2026-03-05 → 2026-03-05 · 2 obs

○ 2017-09-30 09:45:12
● 2026-03-05 21:32:48

○MXzm101111.hostinglotus.com2016-09-11 → 2016-09-11 · 4 obs

○ 2016-03-24 23:03:30
● 2016-09-11 05:37:06
○ 2017-09-30 09:45:12
○ 2026-03-05 21:32:48

●A104.21.49.1622026-03-05 → 2026-03-05 · 2 obs

○ 2017-09-30 09:45:12
● 2026-03-05 21:32:48

○A119.59.104.112016-03-24 → 2017-09-30 · 4 obs

○ 2015-12-19 21:59:04
● 2016-03-24 23:03:30
● 2017-09-30 09:45:12
○ 2026-03-05 21:32:48

○A122.155.10.1382015-08-21 → 2015-12-19 · 4 obs

● 2015-08-21 05:34:34
● 2015-12-19 21:59:04
○ 2016-03-24 23:03:30
○ 2026-03-05 21:32:48

●A172.67.164.2462026-03-05 → 2026-03-05 · 2 obs

○ 2017-09-30 09:45:12
● 2026-03-05 21:32:48

●A2606:4700:3031::6815:31a22026-03-05 → 2026-03-05 · 2 obs

○ 2017-09-30 09:45:12
● 2026-03-05 21:32:48

●A2606:4700:3037::ac43:a4f62026-03-05 → 2026-03-05 · 2 obs

○ 2017-09-30 09:45:12
● 2026-03-05 21:32:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net...	-
vtroffice.com	paul.ns.cloudflare.com, maya.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.193.135

NS records: paul.ns.cloudflare.com, maya.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vtroffice.com (unsigned zone)

⏱️ Timing

Total: 117ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.49.162, 172.67.164.246`
AAAA	2	`2606:4700:3031::6815:31a2, 2606:4700:3037::ac43:a4f6`
NS	2	`maya.ns.cloudflare.com, paul.ns.cloudflare.com`
MX	3	`mx.spamexperts.com (pri: 10), fallbackmx.spamexperts.eu (pri: 20)...`
TXT	1	`v=spf1 include:spf.antispamcloud.com -al`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`maya.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

vtroffice.com resolves to four IP numbers: 2606:4700:3031::6815:31a2, 2606:4700:3037::ac43:a4f6, 104.21.49.162 and 172.67.164.246.

Other host names such as victoriaarts.ca, birorenapoldababel.com, ohifayo.top, www.ydjqgcg.top and mail.bigappletechnology.com share IPs with vtroffice.com.

Name Servers

vtroffice.com is delegated to two name servers: maya.ns.cloudflare.com and paul.ns.cloudflare.com.

vtroffice.com shares the same name server setup as sinothaifreight.com, skinadvancedlab.com, volleyballthai.com, kvkclinic.com and mana.co.th.

vtroffice.com at least partially shares name servers with other domains, for instance cutthroat4x4.com, stenderspica.lv, ceritasejarah.com, namegeneratorpubg.com and masjidnusantara.org.

these name servers are often used in conjunction with the name servers arya.ns.cloudflare.com.

Host names with six IP numbers:

maya.ns.cloudflare.com points to 2606:4700:50::adf5:3ac2, 2803:f800:50::6ca2:c0c2, 2a06:98c1:50::ac40:20c2, 108.162.192.194, 172.64.32.194 and 173.245.58.194.

paul.ns.cloudflare.com points to 2606:4700:58::adf5:3b87, 2803:f800:50::6ca2:c187, 2a06:98c1:50::ac40:2187, 108.162.193.135, 172.64.33.135 and 173.245.59.135.

Mail Servers

Three mail servers handle vtroffice.com: mx.spamexperts.com, fallbackmx.spamexperts.eu and lastmx.spamexperts.net.

vtroffice.com shares at least partially some mail servers with other domains, including karmak-makina.com, (0x736578)ting.be, sajovic.com, ns-logistic.com and merrell-wolff.org.

Eight IP numbers: lastmx.spamexperts.net points to 2001:550:2:3::62:100, 2001:550:2:61::2fc:100, 2001:978:2:7::162:100, 2001:978:2:2c::137:100, 38.71.16.244, 38.89.254.156, 149.13.75.27 and 154.59.104.23.

Six IP numbers: fallbackmx.spamexperts.eu points to 2001:550:2:3::62:100, 2001:550:2:61::2fc:100, 2001:550:2:78::ca:100, 38.71.16.244, 38.89.254.156 and 38.101.250.150.

Two IP numbers: mx.spamexperts.com points to 2001:550:2:61::2fc:100 and 38.89.254.156.

Names pointing to 2001:550:2:3::62:100: lastmx.spamexperts.net and fallbackmx.spamexperts.eu.

Names pointing to 2001:550:2:61::2fc:100: lastmx.spamexperts.net, fallbackmx.spamexperts.eu and mx.spamexperts.com.

Names pointing to 38.71.16.244: lastmx.spamexperts.net and fallbackmx.spamexperts.eu.

Names pointing to 38.89.254.156: lastmx.spamexperts.net, fallbackmx.spamexperts.eu and mx.spamexperts.com.

vtroffice.com - robtex.com

vtroffice.com

com

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`vtroffice.com`

`com`