🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`stackselect.tech`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:9ed^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:8312^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.9.237^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.131.18^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`razvan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c4d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`razvan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c34d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`razvan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:234d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`razvan.ns.cloudflare.com`
		A	108.162.195.77^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.44.77^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.35.77^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`sunny.ns.cloudflare.com`
		A	2606:4700:50::a29f:26a6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sunny.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2a6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sunny.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22a6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sunny.ns.cloudflare.com`
		A	108.162.194.166^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sunny.ns.cloudflare.com`
		A	162.159.38.166^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sunny.ns.cloudflare.com`
		A	172.64.34.166^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sunny.ns.cloudflare.com`
MX	`mxa.mailgun.org` ⭐
		A	34.36.182.139^{🇺🇸 Google34.32.0.0/11}
			PTR	`139.182.36.34.bc.googleusercontent.com`
MX	`mxb.mailgun.org` ⭐
		A	34.36.182.139^{🇺🇸 Google34.32.0.0/11}
			PTR	`139.182.36.34.bc.googleusercontent.com`
TXT	`google-site-verification=D2Vs8lZHMxiXEi1u5t45nzCOQUtZUh2HV6GUz3SfXUE`
TXT	`v=spf1 include:mailgun.org ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.9.237, 172.67.131.18
		IPv6 hints	2606:4700:3030::6815:9ed, 2606:4700:3034::ac43:8312
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=16, name=cloudflare-ech.com
SOA	`razvan.ns.cloudflare.com`dns@cloudflare.com serial=2411383688

`tech`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns01.trs-dns.com` ⭐
	NS	`ns.trs-dns.com`
	NS	`ns01.trs-dns.net`
	NS	`ns10.trs-dns.info`
	NS	`ns10.trs-dns.org`
	SOA	`ns.trs-dns.com`trs-ops@tucows.com serial=1788228540

Same first word

stackselect.com

stackselect.tech

Similar names

seattlekcsc.org

selectstack.xyz

Previous names

Next names

DNS History

12 records (8 active, 4 former)

●NSrazvan.ns.cloudflare.com2026-09-01 → 2026-09-01 · 2 obs

● 2026-09-01 00:41:50
● 2026-09-01 02:14:36

●NSsunny.ns.cloudflare.com2026-09-01 → 2026-09-01 · 2 obs

● 2026-09-01 00:41:50
● 2026-09-01 02:14:36

●MXmxa.mailgun.org2026-09-01 → 2026-09-01 · 2 obs

● 2026-09-01 00:41:50
● 2026-09-01 02:14:36

●MXmxb.mailgun.org2026-09-01 → 2026-09-01 · 2 obs

● 2026-09-01 00:41:50
● 2026-09-01 02:14:36

●A104.21.9.2372026-09-01 → 2026-09-01 · 3 obs

○ 2026-09-01 00:41:50
● 2026-09-01 02:01:38
● 2026-09-01 02:14:36

●A172.67.131.182026-09-01 → 2026-09-01 · 3 obs

○ 2026-09-01 00:41:50
● 2026-09-01 02:01:38
● 2026-09-01 02:14:36

○A188.114.96.02026-09-01 → 2026-09-01 · 3 obs

● 2026-09-01 00:41:50
○ 2026-09-01 02:01:38
○ 2026-09-01 02:14:36

○A188.114.97.02026-09-01 → 2026-09-01 · 3 obs

● 2026-09-01 00:41:50
○ 2026-09-01 02:01:38
○ 2026-09-01 02:14:36

●A2606:4700:3030::6815:9ed2026-09-01 → 2026-09-01 · 3 obs

○ 2026-09-01 00:41:50
● 2026-09-01 02:01:38
● 2026-09-01 02:14:36

●A2606:4700:3034::ac43:83122026-09-01 → 2026-09-01 · 3 obs

○ 2026-09-01 00:41:50
● 2026-09-01 02:01:38
● 2026-09-01 02:14:36

○A2a06:98c1:3120::2026-09-01 → 2026-09-01 · 3 obs

● 2026-09-01 00:41:50
○ 2026-09-01 02:01:38
○ 2026-09-01 02:14:36

○A2a06:98c1:3121::2026-09-01 → 2026-09-01 · 3 obs

● 2026-09-01 00:41:50
○ 2026-09-01 02:01:38
○ 2026-09-01 02:14:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tech	ns01.trs-dns.net, ns01.trs-dns.com, ns10.trs-dns.info, ns10.trs-dns.org	8 records
stackselect.tech	sunny.ns.cloudflare.com, razvan.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.77

NS records: sunny.ns.cloudflare.com, razvan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stackselect.tech (unsigned zone)

⏱️ Timing

Total: 652ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.9.237, 172.67.131.18`
AAAA	2	`2606:4700:3034::ac43:8312, 2606:4700:3030::6815:9ed`
NS	2	`razvan.ns.cloudflare.com, sunny.ns.cloudflare.com`
MX	2	`mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10)`
TXT	2	`google-site-verification=D2Vs8lZHMxiXEi1, v=spf1 include:mailgun.org ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`razvan.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns10.trs-dns.info, ns10.trs-dns.org, ns01.trs-dns.net...)

Analysis

IP Addresses

stackselect.tech directs to four IP numbers, which are 104.21.9.237, 172.67.131.18, 2606:4700:3030::6815:9ed and 2606:4700:3034::ac43:8312.

Two other host names, along with luckyzhu.com, sztongwei.cn and passwordscastle.net, also share IP numbers with stackselect.tech.

Name Servers

DNS delegation for stackselect.tech points to two name servers: razvan.ns.cloudflare.com and sunny.ns.cloudflare.com.

stackselect.tech shares its NS records with other domains, for example habituscrm.com.br, kalleymanneh.workers.dev, platelet-rich-plasma-breast-lift.pages.dev and two others.

At least some of stackselect.tech's name servers are shared with other domains, for example utuusz.cc, dyl6435.pages.dev, youfindgirl.com and two more.

These name servers tend to be deployed in combination with the name servers maxine.ns.cloudflare.com and kurt.ns.cloudflare.com.

DNS names with 6 IP addresses:

razvan.ns.cloudflare.com has IP addresses 108.162.195.77, 162.159.44.77 and 172.64.35.77, plus 3 other.

sunny.ns.cloudflare.com has IP addresses 108.162.194.166, 162.159.38.166 and 172.64.34.166, plus 3 other.

Mail Servers

stackselect.tech is served by two mail servers, mxa.mailgun.org and mxb.mailgun.org.

Among the domains sharing a mail server setup with stackselect.tech are osvaldomares.com, planbook.uservoice.com, tolgabakir.me and two others.

There is at least a partial MX overlap between stackselect.tech and other domains, including healthrevs.com, mail.tusfintech.mn, mijn.shuttelportal.nl and two others.

These mail servers frequently co-occur with the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

Both mxa.mailgun.org and mxb.mailgun.org have a single IP address, 34.36.182.139, and share it.

Host names pointing to 34.36.182.139 IP addresses: mxa.mailgun.org and mxb.mailgun.org.

stackselect.tech - robtex.com