firstdefender.com - robtex.com

firstdefender.com

DNSSEC⚠️ Not signed
A208.89.142.160🇺🇸 AS13812208.89.142.0/24
NSpdns1.ultradns.net ⭐
A2001:502:f3ff::1🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar
PTRpdns1.ultradns.net
A204.74.108.1🇺🇸 MAINT-ID-12008204.74.108.0/24 Neustar
PTRpdns1.ultradns.net
NSpdns2.ultradns.net
A2610:a1:1014::1🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar
PTRpdns2.ultradns.net
A204.74.109.1🇺🇸 MAINT-ID-12008204.74.109.0/24 Neustar
PTRpdns2.ultradns.net
NSpdns3.ultradns.org
A2610:a1:1015::1🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar
PTRpdns3.ultradns.org
A199.7.68.1🇺🇸 MAINT-ID-12008199.7.68.0/24 Neustar
PTRpdns3.ultradns.org
NSpdns4.ultradns.org
A2001:502:4612::1🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar
PTRpdns4.ultradns.org
A199.7.69.1🇺🇸 MAINT-ID-12008199.7.69.0/24 Neustar
PTRpdns4.ultradns.org
NSpdns5.ultradns.info
A2610:a1:1016::1🇺🇸 MAINT-ID-120082610:a1:1016::/48 Neustar
PTRpdns5.ultradns.info
A204.74.114.1🇺🇸 MAINT-ID-12008204.74.114.0/24 Neustar
PTRpdns5.ultradns.info
NSpdns6.ultradns.co.uk
A2610:a1:1017::1🇺🇸 MAINT-ID-120082610:a1:1017::/48 Neustar
PTRpdns6.ultradns.co.uk
A204.74.115.1🇺🇸 MAINT-ID-12008204.74.115.0/24 Neustar
PTRpdns6.ultradns.co.uk
SOApdns1.ultradns.netdnsinfo@thermofisher.com 2011-07-13 #2

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=1771291435

Same first word

firstdefender.de
firstdefender.com

DNS History

7 records (7 active, 0 former)

20162017201820192020202120222023202420252026NSpdns1.ultradns.netpdns2.ultradns.netpdns3.ultradns.orgpdns4.ultradns.orgpdns5.ultradns.infopdns6.ultradns.co.ukA208.89.142.160
●NSpdns1.ultradns.net2015-06-11 → 2026-03-22 · 2 obs
● 2015-06-11 05:40:12
● 2026-03-22 17:56:18
●NSpdns2.ultradns.net2015-06-11 → 2026-03-22 · 2 obs
● 2015-06-11 05:40:12
● 2026-03-22 17:56:18
●NSpdns3.ultradns.org2015-06-11 → 2026-03-22 · 2 obs
● 2015-06-11 05:40:12
● 2026-03-22 17:56:18
●NSpdns4.ultradns.org2015-06-11 → 2026-03-22 · 2 obs
● 2015-06-11 05:40:12
● 2026-03-22 17:56:18
●NSpdns5.ultradns.info2015-06-11 → 2026-03-22 · 2 obs
● 2015-06-11 05:40:12
● 2026-03-22 17:56:18
●NSpdns6.ultradns.co.uk2015-06-11 → 2026-03-22 · 2 obs
● 2015-06-11 05:40:12
● 2026-03-22 17:56:18
●A208.89.142.1602015-06-11 → 2026-03-22 · 2 obs
● 2015-06-11 05:40:12
● 2026-03-22 17:56:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
firstdefender.compdns3.ultradns.org, pdns4.ultradns.org, pdns1.ultradns.net, pdns2.ultradns.net...-

✅ Authoritative Response

Server: 204.74.115.1

NS records: pdns3.ultradns.org, pdns4.ultradns.org, pdns1.ultradns.net, pdns2.ultradns.net, pdns5.ultradns.info, pdns6.ultradns.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstdefender.com (unsigned zone)

⏱️ Timing

Total: 1248ms | Queries: -

📄 Records

TypeCountSample Data
A1208.89.142.160
NS6pdns1.ultradns.net, pdns2.ultradns.net...
SOA1pdns1.ultradns.net dnsinfo.thermofisher.

Analysis

IP Addresses

firstdefender.com resolves to a single IP: 208.89.142.160.

Other host names, for instance antibodyjournal.net, bio-reagents.net, nitononline.eu, thermofisher.ie and thermofishersci.co.it share IP numbers with firstdefender.com.

Name Servers

firstdefender.com is delegated to six name servers: pdns5.ultradns.info, pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org and pdns6.ultradns.co.uk.

firstdefender.com shares some name servers with other domains, for example atzlive.de, horizonnuclearpower.com, 225.130.70.in-addr.arpa, ageident.com and yukongoldcasino.co.uk.

These name servers are commonly paired with udns1.ultradns.net, udns2.ultradns.net, dns-external-master.amazon.com, dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net and dns4.p01.nsone.net.

Host names with two IP numbers:

pdns5.ultradns.info ->2610:a1:1016::1 and 204.74.114.1

pdns1.ultradns.net ->2001:502:f3ff::1 and 204.74.108.1

pdns2.ultradns.net ->2610:a1:1014::1 and 204.74.109.1

pdns3.ultradns.org ->2610:a1:1015::1 and 199.7.68.1

pdns4.ultradns.org ->2001:502:4612::1 and 199.7.69.1

pdns6.ultradns.co.uk ->2610:a1:1017::1 and 204.74.115.1