37smart.com - robtex.com

37smart.com

DNSSEC⚠️ Not signed
A2606:4700:3108::ac42:28f1🇺🇸 Cloudflare2606:4700:3108::/48 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3108::ac42:2b0f🇺🇸 Cloudflare2606:4700:3108::/48 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.66.40.241🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.66.43.15🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSalexandra.ns.cloudflare.com ⭐
A2606:4700:50::a29f:261e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalexandra.ns.cloudflare.com
A2803:f800:50::6ca2:c21e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRalexandra.ns.cloudflare.com
A2a06:98c1:50::ac40:221e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRalexandra.ns.cloudflare.com
A108.162.194.30🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalexandra.ns.cloudflare.com
A162.159.38.30Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalexandra.ns.cloudflare.com
A172.64.34.30🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalexandra.ns.cloudflare.com
NSrob.ns.cloudflare.com
A2606:4700:58::adf5:3b8c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrob.ns.cloudflare.com
A2803:f800:50::6ca2:c18c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrob.ns.cloudflare.com
A2a06:98c1:50::ac40:218c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrob.ns.cloudflare.com
A108.162.193.140🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrob.ns.cloudflare.com
A172.64.33.140🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrob.ns.cloudflare.com
A173.245.59.140🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrob.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c23::1b🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadrs-in-f27.1e100.net
A142.251.179.26🇺🇸 Google142.251.179.0/24
PTRpd-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1b🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f27.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.27🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f27.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c00::1a🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f26.1e100.net
PTRws-in-x1a.1e100.net
A173.194.76.26🇺🇸 Google173.194.76.0/24
PTRws-in-f26.1e100.net
TXTgoogle-site-verification=CEtdqTJSL54WrjvMavG7mmUn2WrBy_6OrGVt9Wb6SX0
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints172.66.40.241, 172.66.43.15
IPv6 hints2606:4700:3108::ac42:28f1, 2606:4700:3108::ac42:2b0f
SOAalexandra.ns.cloudflare.comdns@cloudflare.com serial=2401142791

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1777160126
📈 Tranco rank: #571,786

Subdomains

www.37smart.com

Same first word

37smart.com

Similar names

smart37.ru
smart73.ru
smart73.hu

DNS History

17 records (11 active, 6 former)

20192020202120222023202420252026NSalexandra.ns.cloudflare.comrob.ns.cloudflare.comdns.technorail.comdns2.technorail.comdns3.arubadns.netdns4.arubadns.czMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.commx.37smart.comA172.66.40.241172.66.43.152606:4700:3108::ac42:28f12606:4700:3108::ac42:2b0f89.46.107.240
●NSalexandra.ns.cloudflare.com2026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
○NSdns.technorail.com2018-05-31 → 2018-05-31 · 3 obs
● 2018-05-31 00:58:48
○ 2026-03-05 10:28:46
○ 2026-04-25 23:43:32
○NSdns2.technorail.com2018-05-31 → 2018-05-31 · 3 obs
● 2018-05-31 00:58:48
○ 2026-03-05 10:28:46
○ 2026-04-25 23:43:32
○NSdns3.arubadns.net2018-05-31 → 2018-05-31 · 3 obs
● 2018-05-31 00:58:48
○ 2026-03-05 10:28:46
○ 2026-04-25 23:43:32
○NSdns4.arubadns.cz2018-05-31 → 2018-05-31 · 3 obs
● 2018-05-31 00:58:48
○ 2026-03-05 10:28:46
○ 2026-04-25 23:43:32
●NSrob.ns.cloudflare.com2026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
●MXalt1.aspmx.l.google.com2026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
●MXalt2.aspmx.l.google.com2026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
●MXalt3.aspmx.l.google.com2026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
●MXalt4.aspmx.l.google.com2026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
●MXaspmx.l.google.com2026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
○MXmx.37smart.com2018-05-31 → 2018-05-31 · 3 obs
● 2018-05-31 00:58:48
○ 2026-03-05 10:28:46
○ 2026-04-25 23:43:32
●A172.66.40.2412026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
●A172.66.43.152026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
●A2606:4700:3108::ac42:28f12026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
●A2606:4700:3108::ac42:2b0f2026-03-05 → 2026-04-25 · 3 obs
○ 2018-05-31 00:58:48
● 2026-03-05 10:28:46
● 2026-04-25 23:43:32
○A89.46.107.2402018-05-31 → 2018-05-31 · 3 obs
● 2018-05-31 00:58:48
○ 2026-03-05 10:28:46
○ 2026-04-25 23:43:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
37smart.comrob.ns.cloudflare.com, alexandra.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.140

NS records: rob.ns.cloudflare.com, alexandra.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 37smart.com (unsigned zone)

⏱️ Timing

Total: 396ms | Queries: -

📄 Records

TypeCountSample Data
A2172.66.40.241, 172.66.43.15
AAAA22606:4700:3108::ac42:28f1, 2606:4700:3108::ac42:2b0f
NS2alexandra.ns.cloudflare.com, rob.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT1google-site-verification=CEtdqTJSL54Wrjv
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1alexandra.ns.cloudflare.com dns.cloudfla

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

37smart.com is the parent of www.37smart.com.

IP Addresses

37smart.com resolves to four IP numbers: 2606:4700:3108::ac42:28f1, 2606:4700:3108::ac42:2b0f, 172.66.40.241 and 172.66.43.15.

other host names for instance www.soderlind.no, zlc.edu.es, www.zlc.edu.es, unitednursingservices.com and elpactest.info share IP numbers with 37smart.com.

Name Servers

37smart.com is delegated to two name servers: alexandra.ns.cloudflare.com and rob.ns.cloudflare.com.

37smart.com shares the same name server setup as other domains, for example rea.az, yelsh.com, iewb.org, educatorswithoutboarders.com and iicct.global.

37smart.com at least partially shares name servers with other domains, for instance southwestburbs.com, premierestateslimited.com, bigwallbuilders.net, safesecureselfstorage.com and avdog-l1935.cc.

These name servers are commonly used with sage.ns.cloudflare.com, lady.ns.cloudflare.com and carter.ns.cloudflare.com.

Host names with six IP numbers:

alexandra.ns.cloudflare.com points to: 2606:4700:50::a29f:261e, 2803:f800:50::6ca2:c21e, 2a06:98c1:50::ac40:221e, 108.162.194.30, 162.159.38.30 and 172.64.34.30; rob.ns.cloudflare.com points to: 2606:4700:58::adf5:3b8c, 2803:f800:50::6ca2:c18c, 2a06:98c1:50::ac40:218c, 108.162.193.140, 172.64.33.140 and 173.245.59.140.

Mail Servers

37smart.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

37smart.com shares mail servers with other domains at least partially, including ns500698.ns500758.ns500758.ns500698.ns500735.ns500735.ns500698.ns500736.ns500576.ns500576.ns500698.ns500708.ns500619.ns500576.ns500619.ns500619.trackreceptor.com, ns500759.ns500759.ns500758.ns500758.ns500735.ns500698.ns500735.ns500735.ns500736.ns500735.ns500619.ns500698.ns500619.ns500619.trackreceptor.com, ns500754.ns500731.ns500731.ns500754.ns500742.ns500742.ns500705.ns500688.ns500678.ns500688.ns500291.ns500153.tenderladiesbz.com, ns500599.ns500737.ns500599.ns500724.ns500599.ns500599.ns500724.ns500724.ns500724.ns500737.ns500583.ns500697.ns500697.www.yummyflingsfinder.com and ns500698.ns500758.ns500758.ns500759.ns500698.ns500698.ns500698.ns500698.ns500735.ns500736.ns500708.ns500576.ns500619.ns500686.ns500619.ns500619.trackreceptor.com.

these mail servers are often used with aspmx2.googlemail.com and aspmx3.googlemail.com.

Hosts with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4004:c23::1b and 142.251.179.26.

alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1a and 108.177.123.27.

alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1b and 172.253.116.26.

alt3.aspmx.l.google.com points to 2a00:1450:4009:c0f::1b and 192.178.223.27.

alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1a and 173.194.76.26.