coefficient.us - dns.ninja

`coefficient.us`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:20::681a:60d^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:70d^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:48f6^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.6.13^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.7.13^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.72.246^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`emerie.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2673^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emerie.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c273^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`emerie.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2273^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`emerie.ns.cloudflare.com`
		A	108.162.194.115^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emerie.ns.cloudflare.com`
		A	162.159.38.115^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emerie.ns.cloudflare.com`
		A	172.64.34.115^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emerie.ns.cloudflare.com`
NS	`zeus.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zeus.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`zeus.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`zeus.ns.cloudflare.com`
		A	108.162.193.249^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zeus.ns.cloudflare.com`
		A	172.64.33.249^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zeus.ns.cloudflare.com`
		A	173.245.59.249^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zeus.ns.cloudflare.com`
MX	`coefficient-us.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c801::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr0501cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::7^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch5pr02cu00307.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::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn8pr05cu00102.inbound.protection.outlook.com`
		A	52.101.11.9^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr02cu00101.inbound.protection.outlook.com`
		A	52.101.41.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00305.inbound.protection.outlook.com`
		A	52.101.41.54^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00506.inbound.protection.outlook.com`
		A	52.101.50.7^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr21cu00207.inbound.protection.outlook.com`
TXT	`MS=06B3FBD572E4621733F0492DC6FBA3DFAF1166CA`
TXT	`MS=ms10160933`
TXT	`apple-domain-verification=Rr3FM3ZppkCC2iYM`
TXT	`pax8-verification=7d38ee6b-e98f-3ac6-81af-3200d4c0d5e6`
TXT	`ppe-287a244258ed501cbf01`
TXT	`v=spf1 a:dispatch-us.ppe-hosted.com mx ip4:54.240.9.27 ip4:168.245.47.60 incl...`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.26.6.13, 104.26.7.13, 172.67.72.246
		IPv6 hints	2606:4700:20::681a:60d, 2606:4700:20::681a:70d, 2606:4700:20::ac43:48f6
SOA	`emerie.ns.cloudflare.com`dns@cloudflare.com serial=2407790595

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1784349561

Subdomains

www.coefficient.us

cpanel.coefficient.us

Same first word

Similar names

tecnioffice.com

tecnioffice.es

intecoffice.co.uk

ecofficient.org

efficientco.com

DNS History

16 records (9 active, 7 former)

●NSemerie.ns.cloudflare.com2026-03-02 → 2026-07-18 · 3 obs

○ 2018-10-09 20:30:26
● 2026-03-02 18:46:30
● 2026-07-18 04:53:26

○NSns.coefficienthosting.com2015-08-31 → 2018-10-09 · 4 obs

● 2015-08-31 04:50:16
● 2018-10-09 20:30:26
○ 2026-03-02 18:46:30
○ 2026-07-18 04:53:26

○NSns2.coefficienthosting.com2015-08-31 → 2018-10-09 · 6 obs

● 2015-08-31 04:50:16
● 2015-11-21 22:01:50
○ 2015-11-23 22:34:24
● 2018-10-09 20:30:26
○ 2026-03-02 18:46:30
○ 2026-07-18 04:53:26

●NSzeus.ns.cloudflare.com2026-03-02 → 2026-07-18 · 3 obs

○ 2018-10-09 20:30:26
● 2026-03-02 18:46:30
● 2026-07-18 04:53:26

●MXcoefficient-us.mail.protection.outlook.com2026-03-02 → 2026-07-18 · 3 obs

○ 2018-10-09 20:30:26
● 2026-03-02 18:46:30
● 2026-07-18 04:53:26

○MXeast.smtp.exch090.serverdata.net2018-05-11 → 2018-10-09 · 5 obs

○ 2018-01-07 16:24:32
● 2018-05-11 02:33:48
● 2018-10-09 20:30:26
○ 2026-03-02 18:46:30
○ 2026-07-18 04:53:26

○MXwest.smtp.exch026.serverdata.net2015-08-31 → 2017-10-20 · 4 obs

● 2015-08-31 04:50:16
● 2017-10-20 14:12:46
○ 2018-01-07 16:24:32
○ 2026-07-18 04:53:26

○MXwest.smtp.exch090.serverdata.net2018-01-07 → 2018-10-09 · 5 obs

○ 2017-10-20 14:12:46
● 2018-01-07 16:24:32
● 2018-10-09 20:30:26
○ 2026-03-02 18:46:30
○ 2026-07-18 04:53:26

●A104.26.6.132026-03-02 → 2026-07-18 · 3 obs

○ 2018-10-09 20:30:26
● 2026-03-02 18:46:30
● 2026-07-18 04:53:26

●A104.26.7.132026-03-02 → 2026-07-18 · 3 obs

○ 2018-10-09 20:30:26
● 2026-03-02 18:46:30
● 2026-07-18 04:53:26

●A172.67.72.2462026-03-02 → 2026-07-18 · 3 obs

○ 2018-10-09 20:30:26
● 2026-03-02 18:46:30
● 2026-07-18 04:53:26

●A2606:4700:20::681a:60d2026-03-02 → 2026-07-18 · 3 obs

○ 2018-10-09 20:30:26
● 2026-03-02 18:46:30
● 2026-07-18 04:53:26

●A2606:4700:20::681a:70d2026-03-02 → 2026-07-18 · 3 obs

○ 2018-10-09 20:30:26
● 2026-03-02 18:46:30
● 2026-07-18 04:53:26

●A2606:4700:20::ac43:48f62026-03-02 → 2026-07-18 · 3 obs

○ 2018-10-09 20:30:26
● 2026-03-02 18:46:30
● 2026-07-18 04:53:26

○A68.66.200.2072017-08-29 → 2018-10-09 · 5 obs

○ 2017-07-24 11:13:34
● 2017-08-29 12:02:46
● 2018-10-09 20:30:26
○ 2026-03-02 18:46:30
○ 2026-07-18 04:53:26

○A75.98.163.22015-08-31 → 2017-07-24 · 4 obs

● 2015-08-31 04:50:16
● 2017-07-24 11:13:34
○ 2017-08-29 12:02:46
○ 2026-07-18 04:53:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	w.cctld.us, y.cctld.us, f.cctld.us, k.cctld.us...	-
coefficient.us	zeus.ns.cloudflare.com, emerie.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.115

NS records: zeus.ns.cloudflare.com, emerie.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 589ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`172.67.72.246, 104.26.7.13...`
AAAA	3	`2606:4700:20::681a:60d, 2606:4700:20::ac43:48f6...`
NS	2	`emerie.ns.cloudflare.com, zeus.ns.cloudflare.com`
MX	1	`coefficient-us.mail.protection.outlook.c`
TXT	6	`MS=06B3FBD572E4621733F0492DC6FBA3DFAF116, MS=ms10160933...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`emerie.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

www.coefficient.us and cpanel.coefficient.us each fall under coefficient.us as their parent domain.

IP Addresses

coefficient.us directs to 6 IP numbers: 104.26.6.13, 104.26.7.13, 172.67.72.246 and 3 other.

Two other host names, along with avatar-adventures.obsidianportal.com, wslt.link and cdn.obsidianportal.com, also share IP numbers with coefficient.us.

Name Servers

The NS records for coefficient.us delegate to emerie.ns.cloudflare.com and zeus.ns.cloudflare.com.

coefficient.us shares its NS records with other domains, for example scompcicer.pro, d2024228pages.pages.dev, claudevip.net and two others.

coefficient.us partially shares its NS delegation with several other domains, including world-of-media.de, (0x736578)netvip.blog, goldlinks.com.br and two others.

These name servers often co-occur with the name servers guss.ns.cloudflare.com.

DNS names with 6 IP addresses:

emerie.ns.cloudflare.com maps to 108.162.194.115, 162.159.38.115, 172.64.34.115 and 3 additional IP addresses.

zeus.ns.cloudflare.com maps to 108.162.193.249, 172.64.33.249, 173.245.59.249 and 3 additional IP addresses.

Mail Servers

The sole mail server for coefficient.us is coefficient-us.mail.protection.outlook.com.

With 8 IP addresses total, coefficient-us.mail.protection.outlook.com resolves to 52.101.11.9, 52.101.41.21, 52.101.41.54 and 5 others.