letterblock.com - dns.ninja

`letterblock.com`

DNSSEC	⚠️ Not signed
A	45.79.206.81^{🇺🇸 AKAMAI-LINODE-AP45.79.192.0/19 Akamai Technologies}
		PTR	`li1305-81.members.linode.com`
NS	`ns1.mydyndns.org` ⭐
		A	2600:2000:2100::c9^{🇺🇸 ORACLE-OCI-318982600:2000:2100::/44 Dynamic Network Services, Inc.}
			PTR	`ns1.p201.dns.oraclecloud.net`
		A	108.59.166.201^{🇺🇸 ORACLE-OCI-31898108.59.166.0/23 Dynamic Network Services, Inc.}
			PTR	`ns1.p201.dns.oraclecloud.net`
NS	`ns1153.dns.dyn.com`
		A	2600:2000:2100::c9^{🇺🇸 ORACLE-OCI-318982600:2000:2100::/44 Dynamic Network Services, Inc.}
			PTR	`ns1.p201.dns.oraclecloud.net`
		A	108.59.166.201^{🇺🇸 ORACLE-OCI-31898108.59.166.0/23 Dynamic Network Services, Inc.}
			PTR	`ns1.p201.dns.oraclecloud.net`
NS	`ns2146.dns.dyn.com`
		A	2600:2000:2110::c9^{🇺🇸 ORACLE-OCI-318982600:2000:2110::/44 Dynamic Network Services, Inc.}
			PTR	`ns2.p201.dns.oraclecloud.net`
		A	108.59.168.201^{🇺🇸 ORACLE-OCI-31898108.59.168.0/23 Dynamic Network Services, Inc.}
			PTR	`ns2.p201.dns.oraclecloud.net`
NS	`ns3200.dns.dyn.com`
		A	2600:2000:2120::c9^{🇺🇸 ORACLE-OCI-318982600:2000:2120::/44 Dynamic Network Services, Inc.}
			PTR	`ns3.p201.dns.oraclecloud.net`
		A	108.59.170.201^{🇺🇸 ORACLE-OCI-31898108.59.170.0/23 Dynamic Network Services, Inc.}
			PTR	`ns3.p201.dns.oraclecloud.net`
NS	`ns4135.dns.dyn.com`
		A	2600:2000:2130::c9^{🇺🇸 ORACLE-OCI-318982600:2000:2130::/44 Dynamic Network Services, Inc.}
			PTR	`ns4.p201.dns.oraclecloud.net`
		A	108.59.172.201^{🇺🇸 ORACLE-OCI-31898108.59.172.0/23 Dynamic Network Services, Inc.}
			PTR	`ns4.p201.dns.oraclecloud.net`
MX	`mx1.emailsrvr.com` ⭐
		A	146.20.161.1^{🇺🇸 RACKSPACE-IAD146.20.0.0/16 Rackspace US Inc}
			PTR	`mx1.emailsrvr.com`
MX	`mx2.emailsrvr.com`⁽²⁰⁾
		A	146.20.161.2^{🇺🇸 RACKSPACE-IAD146.20.0.0/16 Rackspace US Inc}
			PTR	`mx2.emailsrvr.com`
TXT	`v=spf1 include:emailsrvr.com ~all`
SOA	`ns1.mydyndns.org`zone-admin@dyndns.com 2011-08-17 #10

`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=1785407222

WOT: SAFE (67/100)

Previously MX for

fairsky.us

Same first word

letterblock.com

Similar names

blockletter.com

DNS History

13 records (8 active, 5 former)

○NSns1.everydns.net2009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 18:57:26
○ 2015-06-07 13:58:24
○ 2026-07-30 10:42:40

●NSns1.mydyndns.org2015-06-07 → 2026-07-30 · 3 obs

○ 2009-01-27 18:57:26
● 2015-06-07 13:58:24
● 2026-07-30 10:42:40

●NSns1153.dns.dyn.com2015-06-07 → 2026-07-30 · 3 obs

○ 2009-01-27 18:57:26
● 2015-06-07 13:58:24
● 2026-07-30 10:42:40

○NSns2.everydns.net2009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 18:57:26
○ 2015-06-07 13:58:24
○ 2026-07-30 10:42:40

●NSns2146.dns.dyn.com2015-06-07 → 2026-07-30 · 3 obs

○ 2009-01-27 18:57:26
● 2015-06-07 13:58:24
● 2026-07-30 10:42:40

○NSns3.everydns.net2009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 18:57:26
○ 2015-06-07 13:58:24
○ 2026-07-30 10:42:40

●NSns3200.dns.dyn.com2015-06-07 → 2026-07-30 · 3 obs

○ 2009-01-27 18:57:26
● 2015-06-07 13:58:24
● 2026-07-30 10:42:40

○NSns4.everydns.net2009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 18:57:26
○ 2015-06-07 13:58:24
○ 2026-07-30 10:42:40

●NSns4135.dns.dyn.com2015-06-07 → 2026-07-30 · 3 obs

○ 2009-01-27 18:57:26
● 2015-06-07 13:58:24
● 2026-07-30 10:42:40

●MXmx1.emailsrvr.com2009-01-27 → 2026-07-30 · 2 obs

● 2009-01-27 18:57:26
● 2026-07-30 10:42:40

●MXmx2.emailsrvr.com2009-01-27 → 2026-07-30 · 2 obs

● 2009-01-27 18:57:26
● 2026-07-30 10:42:40

●A45.79.206.812015-06-07 → 2026-07-30 · 3 obs

○ 2009-01-27 18:57:26
● 2015-06-07 13:58:24
● 2026-07-30 10:42:40

○A72.55.150.492009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 18:57:26
○ 2015-06-07 13:58:24
○ 2026-07-30 10:42:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
letterblock.com	ns1153.dns.dyn.com, ns2146.dns.dyn.com, ns3200.dns.dyn.com, ns4135.dns.dyn.com	8 records

✅ Authoritative Response

Server:108.59.166.201

NS records: ns1153.dns.dyn.com, ns2146.dns.dyn.com, ns3200.dns.dyn.com, ns4135.dns.dyn.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for letterblock.com (unsigned zone)

⏱️ Timing

Total: 755ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.79.206.81`
NS	4	`ns1153.dns.dyn.com, ns4135.dns.dyn.com...`
MX	2	`mx2.emailsrvr.com (pri: 20), mx1.emailsrvr.com (pri: 10)`
TXT	1	`v=spf1 include:emailsrvr.com ~all`
SOA	1	`ns1.mydyndns.org zone-admin.dyndns.com`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns1153.dns.dyn.com, ns1153.dns.dyn.com, ns2146.dns.dyn.com...)

Analysis

IP Addresses

letterblock.com resolves to just one IP address, 45.79.206.81.

christianwebmaker.com, gnwda.org and li1305-81.members.linode.com are examples of other host names that share IP numbers with letterblock.com.

Name Servers

letterblock.com delegates to five name servers: ns1.mydyndns.org, ns1153.dns.dyn.com, ns2146.dns.dyn.com and two others.

letterblock.com partially shares its NS delegation with several other domains, including krombie.net, adamd.co.uk, carcarius.com and two others.

In DNS configurations, these name servers often share authority with ns4135.dns.dyn.com, ns3200.dns.dyn.com, ns2.mydyndns.org and 7 other name servers.

Host names that have two IP addresses:

ns1.mydyndns.org directs traffic to 108.59.166.201 and 2600:2000:2100::c9.

ns1153.dns.dyn.com directs traffic to 108.59.166.201 and 2600:2000:2100::c9.

ns2146.dns.dyn.com directs traffic to 108.59.168.201 and 2600:2000:2110::c9.

ns3200.dns.dyn.com directs traffic to 108.59.170.201 and 2600:2000:2120::c9.

ns4135.dns.dyn.com directs traffic to 108.59.172.201 and 2600:2000:2130::c9.

Both ns1.mydyndns.org and ns1153.dns.dyn.com resolve to 2600:2000:2100::c9 IP addresses each.

Both ns1.mydyndns.org and ns1153.dns.dyn.com resolve to 108.59.166.201 IP addresses each.

Mail Servers

letterblock.com is served by two mail servers, mx1.emailsrvr.com and mx2.emailsrvr.com.

Among the domains sharing a mail server setup with letterblock.com are audiko.com, thebestseo.com, yoyodyneti.com and two others.

There is at least a partial MX overlap between letterblock.com and other domains, including helbocklaw.com, id-theftprotect.co.uk, arlingtonblueline.net and two others.

mx1.emailsrvr.com resolves to 146.20.161.1. mx2.emailsrvr.com resolves to 146.20.161.2. Both host names point to a single IP number.