ctolsen.com - robtex.com

ctolsen.com

DNSSEC⚠️ Not signed
A216.239.32.21🇺🇸 Google216.239.32.0/24
PTRany-in-2015.1e100.net
A216.239.34.21🇺🇸 Google216.239.34.0/24
A216.239.36.21🇺🇸 Google216.239.36.0/24
A216.239.38.21🇺🇸 Google216.239.38.0/24
NSns1.dyna-ns.net ⭐
A2400:cb00:2049:1::a29f:1a5c🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A2400:cb00:2049:1::a29f:1b9e🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.26.92Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.dyna-ns.net
A162.159.27.158Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.dyna-ns.net
NSns2.dyna-ns.net
A2400:cb00:2049:1::a29f:1805🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A2400:cb00:2049:1::a29f:1905🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.24.5Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.dyna-ns.net
A162.159.25.5Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.dyna-ns.net
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c0d::1b🇺🇸 Google2607:f8b0::/32
PTRdl-in-f27.1e100.net
A142.250.101.26🇺🇸 Google142.250.101.0/24
PTRdz-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4023:2801::1a🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f26.1e100.net
A192.178.128.26🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:4013:c1e::1b🇳🇱 Google2a00:1450:4013::/48
PTRyugrqzs-in-f27.1e100.net
A192.178.213.26🇺🇸 Google192.178.213.0/24
PTRyugrqzs-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4023:1015::1b🇺🇸 Google2607:f8b0::/32
PTRyudfwta-in-f27.1e100.net
A172.253.135.26🇺🇸 Google172.253.135.0/24
PTRyudfwta-in-f26.1e100.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
A173.194.76.27🇺🇸 Google173.194.76.0/24
PTRws-in-f27.1e100.net
TXTgoogle-site-verification=zSeVEzWmCzceTKY4N_QzjmcvYnTtumxveoyQgB3oYpQ
TXTv=spf1 include:_spf.google.com ~all
SOAns1.dyna-ns.nethostmaster@ctolsen.com 2026-01-20 #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=1777305641

Previously MX for

ctolsen.com

Same first word

ctolsen.com

Similar names

telcons.de
colnest.com
locsnet.com
stelcon.co.uk
scontel.net
clstone.net
solntce.ru
conselt.de
clonest.com
colsent.com
constel.ch
sltecno.com
clnotes.com
constel.pl
telcons.it
stelcon.com.au
stelcon.ca
colsent.net
colnets.com
cnetsol.com
constel.fr
nstelco.com
telcons.net
scolnet.com
clnotes.net
constel.com.br
olsentc.com.br
scontel.ru
closnet.com
constel.es
nsoltec.com
soltecn.com
conselt.pl
csolnet.net
stelcon.com.mx
locsent.com
stelcon.ie
constel.info
locsten.com
constel.net.br
stelcon.de
coltens.com
stoncel.com
nclotes.com
stoncle.com
csneolt.cz
colsent.in
letscon.com
stelcon.nl
constel.com.mx
scontel.cn
constel.com.ar
loscent.com
stelcon.eu
colnets.net
clstone.org
conselt.com
clentos.com
lcnotes.com
constel.com
constel.ru
csnolte.de
stelcon.be
solnect.com
loscent.com.cn
lcstone.com
soclnet.com
leconst.com
conselt.net
conselt.com.br
clstone.com
scolnet.org

DNS History

15 records (11 active, 4 former)

20192020202120222023202420252026NSns1.dyna-ns.netns2.dyna-ns.netns1.reclaimhosting.comns2.reclaimhosting.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comctolsen.comA216.239.32.21216.239.34.21216.239.36.21216.239.38.21138.68.243.154
●NSns1.dyna-ns.net2026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32
○NSns1.reclaimhosting.com2018-05-14 → 2018-05-14 · 3 obs
● 2018-05-14 07:03:46
○ 2026-02-17 01:58:34
○ 2026-04-27 16:14:32
●NSns2.dyna-ns.net2026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32
○NSns2.reclaimhosting.com2018-05-14 → 2018-05-14 · 3 obs
● 2018-05-14 07:03:46
○ 2026-02-17 01:58:34
○ 2026-04-27 16:14:32
●MXalt1.aspmx.l.google.com2026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32
●MXalt2.aspmx.l.google.com2026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32
●MXalt3.aspmx.l.google.com2026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32
●MXalt4.aspmx.l.google.com2026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32
●MXaspmx.l.google.com2026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32
○MXctolsen.com2018-05-14 → 2018-05-14 · 3 obs
● 2018-05-14 07:03:46
○ 2026-02-17 01:58:34
○ 2026-04-27 16:14:32
○A138.68.243.1542018-05-14 → 2018-05-14 · 3 obs
● 2018-05-14 07:03:46
○ 2026-02-17 01:58:34
○ 2026-04-27 16:14:32
●A216.239.32.212026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32
●A216.239.34.212026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32
●A216.239.36.212026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32
●A216.239.38.212026-02-17 → 2026-04-27 · 3 obs
○ 2018-05-14 07:03:46
● 2026-02-17 01:58:34
● 2026-04-27 16:14:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
ctolsen.comns2.dyna-ns.net, ns1.dyna-ns.net-

✅ Authoritative Response

Server:162.159.24.5

NS records: ns2.dyna-ns.net, ns1.dyna-ns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctolsen.com (unsigned zone)

⏱️ Timing

Total: 598ms | Queries: -

📄 Records

TypeCountSample Data
A4216.239.36.21, 216.239.38.21...
NS2ns1.dyna-ns.net, ns2.dyna-ns.net
MX5alt4.aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 5)...
TXT2google-site-verification=zSeVEzWmCzceTKY, v=spf1 include:_spf.google.com ~all
SOA1ns1.dyna-ns.net hostmaster.ctolsen.com

Analysis

IP Addresses

Four IP numbers are pointed to by ctolsen.com: 216.239.32.21, 216.239.34.21, 216.239.36.21 and 216.239.38.21.

other host names including brightlele.com, liliatividades.com, tlumaczprzysiegly.ch, notsimple.org and guamblog.com share IP numbers with ctolsen.com.

Name Servers

ctolsen.com is delegated to two name servers ns1.dyna-ns.net and ns2.dyna-ns.net.

ctolsen.com shares the same name server setup as other domains, for instance capable.me, recycleing.com, eutopi.com, viagraeq.com and txs.in.

Host names with four IP numbers: ns1.dyna-ns.net points to 2400:cb00:2049:1::a29f:1a5c, 2400:cb00:2049:1::a29f:1b9e, 162.159.26.92 and 162.159.27.158; ns2.dyna-ns.net points to 2400:cb00:2049:1::a29f:1805, 2400:cb00:2049:1::a29f:1905, 162.159.24.5 and 162.159.25.5.

Mail Servers

ctolsen.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.

ctolsen.com shares some mail servers with other domains, at least partially, for instance itsh.es, yestelecom.nl, visista.org, engyon.eu and ns500742.ns500742.ns500731.ns500742.ns500704.ns500705.ns500671.ns500649.ns500649.ns500653.ns500153.tenderladiesbz.com.

These mail servers are commonly used alongside aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4023:c0d::1b and 142.250.101.26

alt1.aspmx.l.google.com points to 2607:f8b0:4023:2801::1a and 192.178.128.26

alt2.aspmx.l.google.com points to 2a00:1450:4013:c1e::1b and 192.178.213.26

alt3.aspmx.l.google.com points to 2607:f8b0:4023:1015::1b and 172.253.135.26

alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1a and 173.194.76.27