`simplexsolutions.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:42e1^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:cfba^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.66.225^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.207.186^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`arch.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b44^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c144^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`arch.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2144^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`arch.ns.cloudflare.com`
		A	108.162.193.68^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
		A	172.64.33.68^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
		A	173.245.59.68^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
NS	`lara.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a80^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c080^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2080^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lara.ns.cloudflare.com`
		A	108.162.192.128^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
		A	172.64.32.128^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
		A	173.245.58.128^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
MX	`mail.simplexsolutions.net` ⭐
		A	161.97.107.21^{🇩🇪 CONTABO161.97.106.0/23}
			PTR	`mail.simplexsolutions.net`
TXT	`google-site-verification=hTlbflqjYuNO0OfCVtUsPbEqjLgkcawgUQ2uHCa7eH0`
TXT	`v=spf1 a mx include:_spf.mlsend.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.66.225, 172.67.207.186
		IPv6	2606:4700:3035::6815:42e1, 2606:4700:3036::ac43:cfba
SOA	`arch.ns.cloudflare.com`dns@cloudflare.com serial=2399391377

`net`

	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=1774513682

Subdomains

mail.simplexsolutions.net

Same first word

simplexsolutions.net

DNS History

12 records (7 active, 5 former)

●NSarch.ns.cloudflare.com2026-03-26 → 2026-03-26 · 3 obs

○ 2017-04-03 19:34:44
● 2026-03-26 00:27:16
● 2026-03-26 08:41:00

●NSlara.ns.cloudflare.com2026-03-26 → 2026-03-26 · 3 obs

○ 2017-04-03 19:34:44
● 2026-03-26 00:27:16
● 2026-03-26 08:41:00

○NSns01.saqnet.co.uk2015-06-10 → 2017-04-03 · 4 obs

● 2015-06-10 09:29:34
● 2017-04-03 19:34:44
○ 2026-03-26 00:27:16
○ 2026-03-26 08:41:00

○NSns02.saqnet.co.uk2015-06-10 → 2017-04-03 · 4 obs

● 2015-06-10 09:29:34
● 2017-04-03 19:34:44
○ 2026-03-26 00:27:16
○ 2026-03-26 08:41:00

●MXmail.simplexsolutions.net2026-03-26 → 2026-03-26 · 3 obs

○ 2017-04-03 19:34:44
● 2026-03-26 00:27:16
● 2026-03-26 08:41:00

○MXmailsaq.net2015-06-10 → 2017-04-03 · 4 obs

● 2015-06-10 09:29:34
● 2017-04-03 19:34:44
○ 2026-03-26 00:27:16
○ 2026-03-26 08:41:00

○MXsmtp.saqnet.co.uk2015-06-10 → 2017-04-03 · 4 obs

● 2015-06-10 09:29:34
● 2017-04-03 19:34:44
○ 2026-03-26 00:27:16
○ 2026-03-26 08:41:00

●A104.21.66.2252026-03-26 → 2026-03-26 · 3 obs

○ 2017-04-03 19:34:44
● 2026-03-26 00:27:16
● 2026-03-26 08:41:00

●A172.67.207.1862026-03-26 → 2026-03-26 · 3 obs

○ 2017-04-03 19:34:44
● 2026-03-26 00:27:16
● 2026-03-26 08:41:00

○A195.2.128.1552015-06-10 → 2017-04-03 · 4 obs

● 2015-06-10 09:29:34
● 2017-04-03 19:34:44
○ 2026-03-26 00:27:16
○ 2026-03-26 08:41:00

●A2606:4700:3035::6815:42e12026-03-26 → 2026-03-26 · 3 obs

○ 2017-04-03 19:34:44
● 2026-03-26 00:27:16
● 2026-03-26 08:41:00

●A2606:4700:3036::ac43:cfba2026-03-26 → 2026-03-26 · 3 obs

○ 2017-04-03 19:34:44
● 2026-03-26 00:27:16
● 2026-03-26 08:41:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
simplexsolutions.net	lara.ns.cloudflare.com, arch.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.68

NS records: lara.ns.cloudflare.com, arch.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simplexsolutions.net (unsigned zone)

⏱️ Timing

Total: 265ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.66.225, 172.67.207.186`
AAAA	2	`2606:4700:3036::ac43:cfba, 2606:4700:3035::6815:42e1`
NS	2	`arch.ns.cloudflare.com, lara.ns.cloudflare.com`
MX	1	`mail.simplexsolutions.net (pri: 10)`
TXT	2	`google-site-verification=hTlbflqjYuNO0Of, v=spf1 a mx include:_spf.mlsend.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`arch.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

The parent of mail.simplexsolutions.net is simplexsolutions.net.

IP Addresses

simplexsolutions.net maps to four IP numbers: 2606:4700:3035::6815:42e1, 2606:4700:3036::ac43:cfba, 104.21.66.225 and 172.67.207.186.

Other host names, for instance www.call-insight.com, www.akwadi.com, www.access.org.sg, maimaicity.com and qcbackup_aliseckin.com.aliseckin.com share IP numbers with simplexsolutions.net.

Name Servers

Two name servers arch.ns.cloudflare.com and lara.ns.cloudflare.com handle delegation for simplexsolutions.net.

simplexsolutions.net uses the same name server setup as other domains, for example congtac.vn, performancegurus.net, theworkflowpro.com, crossfitvoices.com and coursebook.com.

simplexsolutions.net partially shares name servers with other domains; examples include mbmc.com.au, trannywave.com, ydndh.top, fresnofancyfaces.com and antaerial.com.

these name servers are commonly used with the name servers jim.ns.cloudflare.com.

Host names with six IP numbers: arch.ns.cloudflare.com points to: 2606:4700:58::adf5:3b44, 2803:f800:50::6ca2:c144, 2a06:98c1:50::ac40:2144, 108.162.193.68, 172.64.33.68 and 173.245.59.68; lara.ns.cloudflare.com points to: 2606:4700:50::adf5:3a80, 2803:f800:50::6ca2:c080, 2a06:98c1:50::ac40:2080, 108.162.192.128, 172.64.32.128 and 173.245.58.128.

Mail Servers

simplexsolutions.net is handled by a single mail server, mail.simplexsolutions.net.

mail.simplexsolutions.net points to a single IP: 161.97.107.21.

simplexsolutions.net - robtex.com