`seradyn.com`

DNSSEC	⚠️ Not signed
A	208.89.142.153^{🇺🇸 AS13812208.89.142.0/24}
NS	`pdns1.ultradns.net` ⭐
		A	2001:502:f3ff::1^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns1.ultradns.net`
		A	204.74.108.1^{🇺🇸 MAINT-ID-12008204.74.108.0/24 Neustar}
			PTR	`pdns1.ultradns.net`
NS	`pdns2.ultradns.net`
		A	2610:a1:1014::1^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns2.ultradns.net`
		A	204.74.109.1^{🇺🇸 MAINT-ID-12008204.74.109.0/24 Neustar}
			PTR	`pdns2.ultradns.net`
NS	`pdns3.ultradns.org`
		A	2610:a1:1015::1^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns3.ultradns.org`
		A	199.7.68.1^{🇺🇸 MAINT-ID-12008199.7.68.0/24 Neustar}
			PTR	`pdns3.ultradns.org`
NS	`pdns4.ultradns.org`
		A	2001:502:4612::1^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns4.ultradns.org`
		A	199.7.69.1^{🇺🇸 MAINT-ID-12008199.7.69.0/24 Neustar}
			PTR	`pdns4.ultradns.org`
NS	`pdns5.ultradns.info`
		A	2610:a1:1016::1^{🇺🇸 MAINT-ID-120082610:a1:1016::/48 Neustar}
			PTR	`pdns5.ultradns.info`
		A	204.74.114.1^{🇺🇸 MAINT-ID-12008204.74.114.0/24 Neustar}
			PTR	`pdns5.ultradns.info`
NS	`pdns6.ultradns.co.uk`
		A	2610:a1:1017::1^{🇺🇸 MAINT-ID-120082610:a1:1017::/48 Neustar}
			PTR	`pdns6.ultradns.co.uk`
		A	204.74.115.1^{🇺🇸 MAINT-ID-12008204.74.115.0/24 Neustar}
			PTR	`pdns6.ultradns.co.uk`
MX	`mxa-002a2102.gslb.pphosted.com` ⭐
		A	208.86.201.75^{🇺🇸 Proofpoint208.86.201.0/24 Inc.}
			PTR	`mx0b-002a2102.pphosted.com`
MX	`mxb-002a2102.gslb.pphosted.com` ⭐
		A	148.163.148.140^{🇺🇸 Proofpoint148.163.148.0/22}
			PTR	`mx0a-002a2102.pphosted.com`
TXT	`MS=ms55833675`
TXT	`v=spf1 include:spf.protection.outlook.com ip4:148.163.148.140 ip4:208.86.201....`
SOA	`pdns1.ultradns.net`dnsinfo@thermofisher.com 2011-07-13 #24

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

WOT: SAFE (64/100)

Same first word

seradyn.biz

seradyn.com

seradyn.info

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DNS History

17 records (9 active, 8 former)

○NSfsc1.fishersci.com2007-10-24 → 2007-10-24 · 3 obs

● 2007-10-24 03:15:12
○ 2015-06-10 07:01:42
○ 2026-03-06 04:01:10

○NSfsc2.fishersci.com2007-10-24 → 2007-10-24 · 3 obs

● 2007-10-24 03:15:12
○ 2015-06-10 07:01:42
○ 2026-03-06 04:01:10

○NSfsc3.fishersci.com2007-10-24 → 2007-10-24 · 3 obs

● 2007-10-24 03:15:12
○ 2015-06-10 07:01:42
○ 2026-03-06 04:01:10

●NSpdns1.ultradns.net2015-06-10 → 2026-03-06 · 3 obs

○ 2007-10-24 03:15:12
● 2015-06-10 07:01:42
● 2026-03-06 04:01:10

●NSpdns2.ultradns.net2015-06-10 → 2026-03-06 · 3 obs

○ 2007-10-24 03:15:12
● 2015-06-10 07:01:42
● 2026-03-06 04:01:10

●NSpdns3.ultradns.org2015-06-10 → 2026-03-06 · 3 obs

○ 2007-10-24 03:15:12
● 2015-06-10 07:01:42
● 2026-03-06 04:01:10

●NSpdns4.ultradns.org2015-06-10 → 2026-03-06 · 3 obs

○ 2007-10-24 03:15:12
● 2015-06-10 07:01:42
● 2026-03-06 04:01:10

●NSpdns5.ultradns.info2015-06-10 → 2026-03-06 · 3 obs

○ 2007-10-24 03:15:12
● 2015-06-10 07:01:42
● 2026-03-06 04:01:10

●NSpdns6.ultradns.co.uk2015-06-10 → 2026-03-06 · 3 obs

○ 2007-10-24 03:15:12
● 2015-06-10 07:01:42
● 2026-03-06 04:01:10

○MXmail.fishersci.com2007-10-24 → 2007-10-24 · 3 obs

● 2007-10-24 03:15:12
○ 2015-06-10 07:01:42
○ 2026-03-06 04:01:10

○MXmail2.fishersci.com2007-10-24 → 2007-10-24 · 3 obs

● 2007-10-24 03:15:12
○ 2015-06-10 07:01:42
○ 2026-03-06 04:01:10

○MXmail3.fishersci.com2007-10-24 → 2007-10-24 · 3 obs

● 2007-10-24 03:15:12
○ 2015-06-10 07:01:42
○ 2026-03-06 04:01:10

○MXmail4.fishersci.com2007-10-24 → 2007-10-24 · 3 obs

● 2007-10-24 03:15:12
○ 2015-06-10 07:01:42
○ 2026-03-06 04:01:10

●MXmxa-002a2102.gslb.pphosted.com2026-02-25 → 2026-03-06 · 3 obs

○ 2016-11-26 07:59:10
● 2026-02-25 01:23:56
● 2026-03-06 04:01:10

●MXmxb-002a2102.gslb.pphosted.com2026-02-25 → 2026-03-06 · 3 obs

○ 2016-11-26 07:59:10
● 2026-02-25 01:23:56
● 2026-03-06 04:01:10

○MXthermofisher-com.mail.protection.outlook.com2015-06-10 → 2016-11-26 · 5 obs

○ 2007-10-24 03:15:12
● 2015-06-10 07:01:42
● 2016-11-26 07:59:10
○ 2026-02-25 01:23:56
○ 2026-03-06 04:01:10

●A208.89.142.1532015-06-10 → 2026-03-06 · 3 obs

○ 2007-10-24 03:15:12
● 2015-06-10 07:01:42
● 2026-03-06 04:01:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
seradyn.com	pdns3.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 seradyn.com (unsigned zone)

⏱️ Timing

Total: 694ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`208.89.142.153`
NS	6	`pdns1.ultradns.net, pdns2.ultradns.net...`
MX	2	`mxa-002a2102.gslb.pphosted.com (pri: 10), mxb-002a2102.gslb.pphosted.com (pri: 10)`
TXT	2	`MS=ms55833675, v=spf1 include:spf.protection.outlook.co`
SOA	1	`pdns1.ultradns.net dnsinfo.thermofisher.`