presortfirstclass.com - dns.ninja

`presortfirstclass.com`

DNSSEC	⚠️ Not signed
A	35.173.145.203^{🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix}
		PTR	`aegir32.worxco.net`
NS	`ns-95.awsdns-11.com` ⭐
		A	2600:9000:5300:5f00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-95.awsdns-11.com`
		A	205.251.192.95^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-95.awsdns-11.com`
NS	`ns-1145.awsdns-15.org`
		A	2600:9000:5304:7900::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1145.awsdns-15.org`
		A	205.251.196.121^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1145.awsdns-15.org`
NS	`ns-1796.awsdns-32.co.uk`
		A	2600:9000:5307:400::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1796.awsdns-32.co.uk`
		A	205.251.199.4^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1796.awsdns-32.co.uk`
NS	`ns-633.awsdns-15.net`
		A	2600:9000:5302:7900::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-633.awsdns-15.net`
		A	205.251.194.121^{🇺🇸 Amazon205.251.194.0/24 prefix}
MX	`presortfirstclass-com.mail.eo.outlook.com` ⭐
		A	2a01:111:f403:c91d::a^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr21cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:c927::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn6pr21cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:f804::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr03cu00403.inbound.protection.outlook.com`
		A	2a01:111:f403:f908::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn1pr04cu00101.inbound.protection.outlook.com`
		A	52.101.9.17^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.10.8^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn1pr04cu00100.inbound.protection.outlook.com`
		A	52.101.50.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr02cu00502.inbound.protection.outlook.com`
		A	52.101.194.13^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch0pr04cu00605.inbound.protection.outlook.com`
TXT	`google-site-verification=nLNTkaiElIbk0iQO9rJqISRNaZRSrd3qPjBNd8vU5-s`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf.bbcsoftware.com include...`
SOA	`ns-95.awsdns-11.com`awsdns-hostmaster@amazon.com 2019-10-14 #5

`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=1782641670

Same first word

presortfirstclass.com

DNS History

13 records (6 active, 7 former)

●NSns-1145.awsdns-15.org2016-04-28 → 2026-06-28 · 3 obs

○ 2016-01-18 19:12:16
● 2016-04-28 16:42:46
● 2026-06-28 10:28:46

●NSns-1796.awsdns-32.co.uk2016-04-28 → 2026-06-28 · 3 obs

○ 2016-01-18 19:12:16
● 2016-04-28 16:42:46
● 2026-06-28 10:28:46

●NSns-633.awsdns-15.net2016-04-28 → 2026-06-28 · 3 obs

○ 2016-01-18 19:12:16
● 2016-04-28 16:42:46
● 2026-06-28 10:28:46

●NSns-95.awsdns-11.com2016-04-28 → 2026-06-28 · 3 obs

○ 2016-01-18 19:12:16
● 2016-04-28 16:42:46
● 2026-06-28 10:28:46

○NSns01.hostsofamerica.com2015-05-21 → 2016-01-18 · 4 obs

● 2015-05-21 08:20:28
● 2016-01-18 19:12:16
○ 2016-04-28 16:42:46
○ 2026-06-28 10:28:46

○NSns02.hostsofamerica.com2015-05-21 → 2016-01-18 · 4 obs

● 2015-05-21 08:20:28
● 2016-01-18 19:12:16
○ 2016-04-28 16:42:46
○ 2026-06-28 10:28:46

○MXmail.presortfirstclass.com2015-05-21 → 2017-03-20 · 3 obs

● 2015-05-21 08:20:28
● 2017-03-20 12:42:56
○ 2026-06-28 10:28:46

●MXpresortfirstclass-com.mail.eo.outlook.com2026-06-28 → 2026-06-28 · 2 obs

○ 2017-03-20 12:42:56
● 2026-06-28 10:28:46

●A35.173.145.2032026-06-28 → 2026-06-28 · 2 obs

○ 2017-03-20 12:42:56
● 2026-06-28 10:28:46

○A65.64.82.1082015-10-23 → 2017-03-20 · 4 obs

○ 2015-05-21 08:20:28
● 2015-10-23 18:36:40
● 2017-03-20 12:42:56
○ 2026-06-28 10:28:46

○A65.64.82.1092017-03-20 → 2017-03-20 · 3 obs

○ 2015-10-23 18:36:40
● 2017-03-20 12:42:56
○ 2026-06-28 10:28:46

○A65.64.82.1102017-03-20 → 2017-03-20 · 3 obs

○ 2015-10-23 18:36:40
● 2017-03-20 12:42:56
○ 2026-06-28 10:28:46

○A65.64.85.2012015-05-21 → 2015-05-21 · 3 obs

● 2015-05-21 08:20:28
○ 2015-10-23 18:36:40
○ 2026-06-28 10:28:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
presortfirstclass.com	ns-95.awsdns-11.com, ns-633.awsdns-15.net, ns-1145.awsdns-15.org, ns-1796.awsdns-32.co.uk	2 records

✅ Authoritative Response

Server:205.251.192.95

NS records: ns-95.awsdns-11.com, ns-633.awsdns-15.net, ns-1145.awsdns-15.org, ns-1796.awsdns-32.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for presortfirstclass.com (unsigned zone)

⏱️ Timing

Total: 416ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`35.173.145.203`
NS	4	`ns-1145.awsdns-15.org, ns-1796.awsdns-32.co.uk...`
MX	1	`presortfirstclass-com.mail.eo.outlook.co`
TXT	2	`google-site-verification=nLNTkaiElIbk0iQ, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns-95.awsdns-11.com awsdns-hostmaster.am`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-95.awsdns-11.com, ns-95.awsdns-11.com)

Analysis

IP Addresses

presortfirstclass.com resolves to one IP address: 35.173.145.203.

coatpro.biz, aeternitasinc.com, kiowatribe.org and two other host names share IP numbers with presortfirstclass.com.

Name Servers

The authoritative name servers for presortfirstclass.com are ns-95.awsdns-11.com, ns-633.awsdns-15.net, ns-1145.awsdns-15.org and ns-1796.awsdns-32.co.uk.

presortfirstclass.com shares at least some of its name servers with other domains, including d229ttrfvxhmux.cloudfront.net, dirtconditions.com, sega-crm-analytics.jp and two others.

The host names ns-95.awsdns-11.com, ns-633.awsdns-15.net, ns-1145.awsdns-15.org and ns-1796.awsdns-32.co.uk each resolve to two IP addresses: ns-95.awsdns-11.com resolves to 205.251.192.95 and 2600:9000:5300:5f00::1; ns-633.awsdns-15.net resolves to 205.251.194.121 and 2600:9000:5302:7900::1; ns-1145.awsdns-15.org resolves to 205.251.196.121 and 2600:9000:5304:7900::1; ns-1796.awsdns-32.co.uk resolves to 205.251.199.4 and 2600:9000:5307:400::1.

Mail Servers

Mail for presortfirstclass.com is handled by a single mail server, presortfirstclass-com.mail.eo.outlook.com.

presortfirstclass-com.mail.eo.outlook.com resolves to 8 IP addresses — 52.101.9.17, 52.101.10.8, 52.101.50.10 and 5 others.