dvsystems.co - robtex.com

dvsystems.co

DNSSEC⚠️ Not signed
A2606:4700::6812:1485🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6812:1585🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.20.133Cloudflare104.18.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.21.133Cloudflare104.18.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjoan.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3aad🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoan.ns.cloudflare.com
A2803:f800:50::6ca2:c0ad🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjoan.ns.cloudflare.com
A2a06:98c1:50::ac40:20ad🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjoan.ns.cloudflare.com
A108.162.192.173🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoan.ns.cloudflare.com
A172.64.32.173🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoan.ns.cloudflare.com
A173.245.58.173🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoan.ns.cloudflare.com
NSowen.ns.cloudflare.com
A2606:4700:58::adf5:3bdb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRowen.ns.cloudflare.com
A2803:f800:50::6ca2:c1db🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRowen.ns.cloudflare.com
A2a06:98c1:50::ac40:21db🇺🇸 Cloudflare2a06:98c1:50::/45
PTRowen.ns.cloudflare.com
A108.162.193.219🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRowen.ns.cloudflare.com
A172.64.33.219🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRowen.ns.cloudflare.com
A173.245.59.219🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRowen.ns.cloudflare.com
TXTv=spf1 -all
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.18.20.133, 104.18.21.133
IPv6 hints2606:4700::6812:1485, 2606:4700::6812:1585
SOAjoan.ns.cloudflare.comdns@cloudflare.com serial=2403794824

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐
NSa.registrydns.co
NSb.registrydns.co
NSc.registrydns.co
NSd.registrydns.co
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759654214

Subdomains

mail.dvsystems.co

Same first word

dvsystems.co
dvsystems.net

Similar names

vdsystems.de

DNS History

12 records (6 active, 6 former)

20162017201820192020202120222023202420252026NSjoan.ns.cloudflare.comowen.ns.cloudflare.comns1.softlayer.comslns1.namespro.caslns2.namespro.caMXmail.dvsystems.coA104.18.20.133104.18.21.1332606:4700::6812:14852606:4700::6812:1585158.85.87.7670.85.232.2
●NSjoan.ns.cloudflare.com2026-03-26 → 2026-05-09 · 3 obs
○ 2018-05-30 08:22:24
● 2026-03-26 12:59:18
● 2026-05-09 22:58:18
○NSns1.softlayer.com2018-05-30 → 2018-05-30 · 4 obs
○ 2015-07-09 13:18:58
● 2018-05-30 08:22:24
○ 2026-03-26 12:59:18
○ 2026-05-09 22:58:18
●NSowen.ns.cloudflare.com2026-03-26 → 2026-05-09 · 3 obs
○ 2018-05-30 08:22:24
● 2026-03-26 12:59:18
● 2026-05-09 22:58:18
○NSslns1.namespro.ca2015-07-09 → 2018-05-30 · 4 obs
● 2015-07-09 13:18:58
● 2018-05-30 08:22:24
○ 2026-03-26 12:59:18
○ 2026-05-09 22:58:18
○NSslns2.namespro.ca2015-07-09 → 2018-05-30 · 4 obs
● 2015-07-09 13:18:58
● 2018-05-30 08:22:24
○ 2026-03-26 12:59:18
○ 2026-05-09 22:58:18
○MXmail.dvsystems.co2015-07-09 → 2018-05-30 · 4 obs
● 2015-07-09 13:18:58
● 2018-05-30 08:22:24
○ 2026-03-26 12:59:18
○ 2026-05-09 22:58:18
●A104.18.20.1332026-03-26 → 2026-05-09 · 3 obs
○ 2018-05-30 08:22:24
● 2026-03-26 12:59:18
● 2026-05-09 22:58:18
●A104.18.21.1332026-03-26 → 2026-05-09 · 3 obs
○ 2018-05-30 08:22:24
● 2026-03-26 12:59:18
● 2026-05-09 22:58:18
○A158.85.87.762018-05-30 → 2018-05-30 · 4 obs
○ 2017-01-10 09:26:54
● 2018-05-30 08:22:24
○ 2026-03-26 12:59:18
○ 2026-05-09 22:58:18
●A2606:4700::6812:14852026-03-26 → 2026-05-09 · 3 obs
○ 2018-05-30 08:22:24
● 2026-03-26 12:59:18
● 2026-05-09 22:58:18
●A2606:4700::6812:15852026-03-26 → 2026-05-09 · 3 obs
○ 2018-05-30 08:22:24
● 2026-03-26 12:59:18
● 2026-05-09 22:58:18
○A70.85.232.22015-07-09 → 2017-01-10 · 4 obs
● 2015-07-09 13:18:58
● 2017-01-10 09:26:54
○ 2018-05-30 08:22:24
○ 2026-05-09 22:58:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coc.registrydns.co, b.registrydns.co, d.registrydns.co, a.registrydns.co-
dvsystems.cojoan.ns.cloudflare.com, owen.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.219

NS records: joan.ns.cloudflare.com, owen.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dvsystems.co (unsigned zone)

⏱️ Timing

Total: 334ms | Queries: -

📄 Records

TypeCountSample Data
A2104.18.21.133, 104.18.20.133
AAAA22606:4700::6812:1585, 2606:4700::6812:1485
NS2joan.ns.cloudflare.com, owen.ns.cloudflare.com
TXT1v=spf1 -all
HTTPS1{"priority":1,"target":".","alpn":["h2"]
SOA1joan.ns.cloudflare.com dns.cloudflare.co

Analysis

Hierarchy

dvsystems.co is parent of mail.dvsystems.co.

IP Addresses

dvsystems.co points to four IP numbers: 2606:4700::6812:1485, 2606:4700::6812:1585, 104.18.20.133 and 104.18.21.133.

Other host names, for instance novartis.lv, mechetronics.co.uk, mail2.vaxjo.com, reachreactor.ca and smlinc.com share IP numbers with dvsystems.co.

Name Servers

dvsystems.co's delegation is to two name servers joan.ns.cloudflare.com and owen.ns.cloudflare.com.

dvsystems.co shares the same name server configuration as other domains, such as airtreatment.nl, albinpumps.com, compair-direct.us, wittigsystems.de and airmotor.com.

dvsystems.co at least partially shares its name servers with other domains, for instance duere.to.gov.br, adamvacations.com, mototelecom.ru, (0x736578)y.co.za and markethatch.com.

these name servers are commonly used together with mckinley.ns.cloudflare.com, khalid.ns.cloudflare.com, sima.ns.cloudflare.com and cameron.ns.cloudflare.com.

Host names with six IP numbers:

joan.ns.cloudflare.com points to: 2606:4700:50::adf5:3aad, 2803:f800:50::6ca2:c0ad, 2a06:98c1:50::ac40:20ad, 108.162.192.173, 172.64.32.173 and 173.245.58.173.

owen.ns.cloudflare.com points to: 2606:4700:58::adf5:3bdb, 2803:f800:50::6ca2:c1db, 2a06:98c1:50::ac40:21db, 108.162.193.219, 172.64.33.219 and 173.245.59.219.