cresstech.com - robtex.com

cresstech.com

DNSSEC⚠️ Not signed
A192.185.146.169🇺🇸 Jacksonville192.185.144.0/21
PTR192-185-146-169.unifiedlayer.com
NSns1.dowsumi.com ⭐
A192.185.146.143🇺🇸 Jacksonville192.185.144.0/21
PTRarnage.websitewelcome.com
NSns2.dowsumi.com
A192.185.146.144🇺🇸 Jacksonville192.185.144.0/21
PTRns652.websitewelcome.com
MXsmtp.google.com ⭐
A2607:f8b0:4004:c06::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbg-in-f26.1e100.net
A2607:f8b0:4004:c06::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbg-in-f27.1e100.net
A2607:f8b0:4004:c07::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbc-in-f26.1e100.net
A2607:f8b0:4004:c27::1a🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadsk-in-f26.1e100.net
A172.253.62.26🇺🇸 Google172.253.62.0/24
PTRbc-in-f26.1e100.net
A172.253.115.26🇺🇸 Google172.253.115.0/24
PTRbg-in-f26.1e100.net
A172.253.115.27🇺🇸 Google172.253.115.0/24
PTRbg-in-f27.1e100.net
A172.253.122.27🇺🇸 Google172.253.122.0/24
PTRbh-in-f27.1e100.net
A172.253.139.26🇺🇸 Google172.253.139.0/24
PTRyuiadsk-in-f26.1e100.net
TXTgoogle-site-verification=AGwWbzUeXQcvFEeZw5ODZtGuYJOHC-o90OUUHJQpc1s
TXTv=spf1 a mx include:websitewelcome.com ~all
SOAns1.dowsumi.comhq786@hotmail.com 2026-06-30 #1

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=1783075811

Previously MX for

cresstech.com

Subdomains

mail.cresstech.com

Same first word

cresstech.com

Similar names

crestecsh.com.cn
chestersc.org
tcchesser.com
hcsecrets.com

DNS History

12 records (4 active, 8 former)

200920112013201520172019202120232025NSns1.dowsumi.comns2.dowsumi.comns2765.hostgator.comns2766.hostgator.comns6363.hostgator.comMXsmtp.google.comcresstech.commail.cresstech.comsearchmx.name-services.comA192.185.146.169192.254.189.1538.15.231.100
●NSns1.dowsumi.com2026-02-18 → 2026-07-03 · 3 obs
○ 2018-09-15 01:28:46
● 2026-02-18 00:02:30
● 2026-07-03 10:50:26
●NSns2.dowsumi.com2026-02-18 → 2026-07-03 · 3 obs
○ 2018-09-15 01:28:46
● 2026-02-18 00:02:30
● 2026-07-03 10:50:26
○NSns2765.hostgator.com2015-06-09 → 2018-09-15 · 5 obs
○ 2008-03-19 15:06:44
● 2015-06-09 15:30:52
● 2018-09-15 01:28:46
○ 2026-02-18 00:02:30
○ 2026-07-03 10:50:26
○NSns2766.hostgator.com2015-06-09 → 2018-09-15 · 5 obs
○ 2008-03-19 15:06:44
● 2015-06-09 15:30:52
● 2018-09-15 01:28:46
○ 2026-02-18 00:02:30
○ 2026-07-03 10:50:26
○NSns6363.hostgator.com2015-06-09 → 2018-09-15 · 5 obs
○ 2008-03-19 15:06:44
● 2015-06-09 15:30:52
● 2018-09-15 01:28:46
○ 2026-02-18 00:02:30
○ 2026-07-03 10:50:26
○MXcresstech.com2015-06-09 → 2018-09-15 · 5 obs
○ 2008-03-19 15:06:44
● 2015-06-09 15:30:52
● 2018-09-15 01:28:46
○ 2026-02-18 00:02:30
○ 2026-07-03 10:50:26
○MXmail.cresstech.com2026-02-18 → 2026-02-18 · 4 obs
○ 2018-09-15 01:28:46
● 2026-02-18 00:02:30
○ 2026-07-03 10:50:24
○ 2026-07-03 10:50:26
○MXsearchmx.name-services.com2008-03-19 → 2008-03-19 · 3 obs
● 2008-03-19 15:06:44
○ 2015-06-09 15:30:52
○ 2026-07-03 10:50:26
●MXsmtp.google.com2026-07-03 → 2026-07-03 · 3 obs
○ 2026-02-18 00:02:30
● 2026-07-03 10:50:24
● 2026-07-03 10:50:26
●A192.185.146.1692026-02-18 → 2026-07-03 · 3 obs
○ 2018-09-15 01:28:46
● 2026-02-18 00:02:30
● 2026-07-03 10:50:26
○A192.254.189.1532015-06-09 → 2018-09-15 · 5 obs
○ 2008-03-19 15:06:44
● 2015-06-09 15:30:52
● 2018-09-15 01:28:46
○ 2026-02-18 00:02:30
○ 2026-07-03 10:50:26
○A8.15.231.1002008-03-19 → 2008-03-19 · 3 obs
● 2008-03-19 15:06:44
○ 2015-06-09 15:30:52
○ 2026-07-03 10:50:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, e.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net...-
cresstech.comns1.dowsumi.com, ns2.dowsumi.com2 records

✅ Authoritative Response

Server:192.185.146.143

NS records: ns1.dowsumi.com, ns2.dowsumi.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cresstech.com (unsigned zone)

⏱️ Timing

Total: 195ms | Queries: -

📄 Records

TypeCountSample Data
A1192.185.146.169
NS2ns1.dowsumi.com, ns2.dowsumi.com
MX1SMTP.GOOGLE.COM (pri: 1)
TXT2google-site-verification=AGwWbzUeXQcvFEe, v=spf1 a mx include:websitewelcome.com ~
SOA1ns1.dowsumi.com hq786.hotmail.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.dowsumi.com, ns2.dowsumi.com)

Analysis

Hierarchy

mail.cresstech.com is a subdomain of cresstech.com.

IP Addresses

cresstech.com points to a single IP number: 192.185.146.169.

Additional host names — thetachapterbtp.org, remicos.nl, mail.thetachapterbtp.org and two others — share IP numbers with cresstech.com.

Name Servers

cresstech.com is delegated to two name servers: ns1.dowsumi.com and ns2.dowsumi.com.

The name servers for cresstech.com are shared with other domains, such as aahsolutions.net, sabritrader.com.pk and dowsumi.com.

cresstech.com shares at least some of its name servers with other domains, such as ipslhr.com.

These name servers commonly appear alongside the name servers ns651.websitewelcome.com and ns652.websitewelcome.com.

Both ns1.dowsumi.com and ns2.dowsumi.com have a single IP address each — ns1.dowsumi.com resolves to 192.185.146.143 while ns2.dowsumi.com resolves to 192.185.146.144.

Mail Servers

cresstech.com has one mail server: smtp.google.com.

cresstech.com shares the same mail server setup as other domains, including tikkl.com, mail.iowachristianschools.org, klokan.com.ar and two others.

cresstech.com shares mail servers — at least in part — with other domains, including nikolaev.com, openedu.net, mypac.tv and two others.

These mail servers are frequently used alongside the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com, plus two others.

smtp.google.com points to 9 IP numbers: 172.253.62.26, 172.253.115.26, 172.253.115.27 and 6 other.