`letterresponse.com`

DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:e4b^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:f4b^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:48c0^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.14.75^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.15.75^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.72.192^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`faye.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26b4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`faye.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2b4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`faye.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22b4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`faye.ns.cloudflare.com`
		A	108.162.194.180^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`faye.ns.cloudflare.com`
		A	162.159.38.180^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`faye.ns.cloudflare.com`
		A	172.64.34.180^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`faye.ns.cloudflare.com`
NS	`igor.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b77^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c177^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`igor.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2177^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`igor.ns.cloudflare.com`
		A	108.162.193.119^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	172.64.33.119^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	173.245.59.119^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
MX	`marketsphere-com-1.fortimailcloud.com` ⭐
		A	159.48.178.132^{🇺🇸 FORTINET159.48.178.0/24 Fortinet Inc.}
			PTR	`proxysjc20.fortimailcloud.com`
MX	`marketsphere-com-2.fortimailcloud.com`⁽¹⁵⁾
		A	148.230.56.131^{🇲🇽 FORTINET148.230.56.0/24}
			PTR	`proxyda22.fortimailcloud.com`
MX	`letterresponse-com.mail.protection.outlook.com`⁽²⁰⁾
		A	2a01:111:f403:c902::5^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj2pr05cu00505.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::6^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr21cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:f903::^{🇺🇸 Microsoft2a01:111:f000::/36}
		A	2a01:111:f403:f908::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn1pr21cu00100.inbound.protection.outlook.com`
		A	52.101.8.42^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dm6pr03cu00402.inbound.protection.outlook.com`
		A	52.101.9.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mn2pr02cu00202.inbound.protection.outlook.com`
		A	52.101.9.17^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.10.18^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00302.inbound.protection.outlook.com`
TXT	`MDAyMzM3MDVsZXR0ZXJy`
TXT	`MS=ms14830344`
TXT	`ie11g6oga4n99sn4923e3hkasc`
TXT	`v=spf1 include:spf.protection.outlook.com include:mail.zendesk.com -all`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.26.14.75, 104.26.15.75, 172.67.72.192
		IPv6 hints	2606:4700:20::681a:e4b, 2606:4700:20::681a:f4b, 2606:4700:20::ac43:48c0
SOA	`faye.ns.cloudflare.com`dns@cloudflare.com serial=2399663506

`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=1776104582

Same first word

letterresponse.com

DNS History

16 records (11 active, 5 former)

○NScpns01.secureserver.net2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 17:14:14
○ 2015-10-23 23:06:14
○ 2026-04-13 18:36:56

○NScpns02.secureserver.net2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 17:14:14
○ 2015-10-23 23:06:14
○ 2026-04-13 18:36:56

●NSfaye.ns.cloudflare.com2026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

●NSigor.ns.cloudflare.com2026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

●MXletterresponse-com.mail.protection.outlook.com2026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

○MXmailstore1.secureserver.net2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 17:14:14
○ 2015-10-23 23:06:14
○ 2026-04-13 18:36:56

●MXmarketsphere-com-1.fortimailcloud.com2026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

●MXmarketsphere-com-2.fortimailcloud.com2026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

○MXsmtp.secureserver.net2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 17:14:14
○ 2015-10-23 23:06:14
○ 2026-04-13 18:36:56

●A104.26.14.752026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

●A104.26.15.752026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

●A172.67.72.1922026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

●A2606:4700:20::681a:e4b2026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

●A2606:4700:20::681a:f4b2026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

●A2606:4700:20::ac43:48c02026-04-02 → 2026-04-13 · 3 obs

○ 2015-10-23 23:06:14
● 2026-04-02 22:23:42
● 2026-04-13 18:36:56

○A68.178.232.1432008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 17:14:14
○ 2015-10-23 23:06:14
○ 2026-04-13 18:36:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net...	-
letterresponse.com	igor.ns.cloudflare.com, faye.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.119

NS records: igor.ns.cloudflare.com, faye.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for letterresponse.com (unsigned zone)

⏱️ Timing

Total: 135ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`104.26.15.75, 172.67.72.192...`
AAAA	3	`2606:4700:20::ac43:48c0, 2606:4700:20::681a:f4b...`
NS	2	`faye.ns.cloudflare.com, igor.ns.cloudflare.com`
MX	3	`marketsphere-com-1.fortimailcloud.com (p, marketsphere-com-2.fortimailcloud.com (p...`
TXT	4	`MDAyMzM3MDVsZXR0ZXJy, MS=ms14830344...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`faye.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (igor.ns.cloudflare.com, igor.ns.cloudflare.com, igor.ns.cloudflare.com...)

Analysis

IP Addresses

letterresponse.com points to six IP addresses: 2606:4700:20::681a:e4b, 2606:4700:20::681a:f4b, 2606:4700:20::ac43:48c0, 104.26.14.75, 104.26.15.75 and 172.67.72.192.

For instance, other host names fromuthtennis.com, lonkerokasino.com, www.evidenceforlearning.org.au, fleetmagazine.com and skylarknet.ispdigital.cloud share IP numbers with letterresponse.com.

Name Servers

letterresponse.com is delegated to two name servers: faye.ns.cloudflare.com and igor.ns.cloudflare.com.

letterresponse.com uses the same name server setup as other domains such as livesport.ru, kcsaba.hu, aural.dev, letterreply.com and syspro.co.il.

letterresponse.com shares name servers with other domains at least partially, for example lfitechnology.com, agones.gr, uhshouseboats.com, put-kuspehu.ru and qoo10.hk.

These name servers are commonly used with the name servers ridge.ns.cloudflare.com and clara.ns.cloudflare.com.

Host names with six IP numbers: host name faye.ns.cloudflare.com points to: 2606:4700:50::a29f:26b4, 2803:f800:50::6ca2:c2b4, 2a06:98c1:50::ac40:22b4, 108.162.194.180, 162.159.38.180 and 172.64.34.180; host name igor.ns.cloudflare.com points to: 2606:4700:58::adf5:3b77, 2803:f800:50::6ca2:c177, 2a06:98c1:50::ac40:2177, 108.162.193.119, 172.64.33.119 and 173.245.59.119.

Mail Servers

letterresponse.com is served by three mail servers: marketsphere-com-1.fortimailcloud.com, marketsphere-com-2.fortimailcloud.com and letterresponse-com.mail.protection.outlook.com.

letterresponse.com shares some mail servers with other domains to some extent, for instance unclaimedpropertyspecialists.com and marketsphere.com.

these mail servers are commonly used with the mail servers unclaimedpropertyspecialists-com.mail.protection.outlook.com.

Eight IP numbers:

letterresponse-com.mail.protection.outlook.com points to 2a01:111:f403:c902::5, 2a01:111:f403:c902::6, 2a01:111:f403:f903::, 2a01:111:f403:f908::, 52.101.8.42, 52.101.9.2, 52.101.9.17 and 52.101.10.18.

One IP number:

marketsphere-com-1.fortimailcloud.com points to 159.48.178.132.

marketsphere-com-2.fortimailcloud.com points to 148.230.56.131.

letterresponse.com - robtex.com