contribution-margin.com - robtex.com

contribution-margin.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2514🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:cb44🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.37.20Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.203.68🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSderek.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b9a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRderek.ns.cloudflare.com
A2803:f800:50::6ca2:c19a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRderek.ns.cloudflare.com
A2a06:98c1:50::ac40:219a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRderek.ns.cloudflare.com
A108.162.193.154🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRderek.ns.cloudflare.com
A172.64.33.154🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRderek.ns.cloudflare.com
A173.245.59.154🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRderek.ns.cloudflare.com
NSmary.ns.cloudflare.com
A2606:4700:50::adf5:3a86🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
A2803:f800:50::6ca2:c086🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmary.ns.cloudflare.com
A2a06:98c1:50::ac40:2086🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmary.ns.cloudflare.com
A108.162.192.134🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
A172.64.32.134🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
A173.245.58.134🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
MXw01ba494.kasserver.com ⭐
A85.13.165.198🇩🇪 NMM-AS85.13.165.0/24 Neue Medien Muennich
PTRdd30416.kasserver.com
TXTgoogle-site-verification=kX_PJBZOfZrIJtZCBx-wVJJrJcfDx8091OOyhFgEqoA
TXTv=spf1 a mx include:spf.kasserver.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.37.20, 172.67.203.68
IPv6 hints2606:4700:3030::6815:2514, 2606:4700:3036::ac43:cb44
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=145, name=cloudflare-ech.com
SOAderek.ns.cloudflare.comdns@cloudflare.com serial=2399914878

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1776238912
🔒 HSTS Preload (+subdomains)

Same first word

contribution-margin.com

DNS History

11 records (7 active, 4 former)

200920112013201520172019202120232025NSderek.ns.cloudflare.commary.ns.cloudflare.comns.datacenter.nons2.datacenter.noMXw01ba494.kasserver.commx.webhuset.noA104.21.37.20172.67.203.682606:4700:3030::6815:25142606:4700:3036::ac43:cb4481.27.32.130
●NSderek.ns.cloudflare.com2026-04-10 → 2026-04-15 · 3 obs
○ 2015-10-28 15:58:22
● 2026-04-10 23:21:58
● 2026-04-15 08:04:44
●NSmary.ns.cloudflare.com2026-04-10 → 2026-04-15 · 3 obs
○ 2015-10-28 15:58:22
● 2026-04-10 23:21:58
● 2026-04-15 08:04:44
○NSns.datacenter.no2008-03-08 → 2008-03-08 · 3 obs
● 2008-03-08 02:51:24
○ 2015-10-28 15:58:22
○ 2026-04-15 08:04:44
○NSns2.datacenter.no2008-03-08 → 2008-03-08 · 3 obs
● 2008-03-08 02:51:24
○ 2015-10-28 15:58:22
○ 2026-04-15 08:04:44
○MXmx.webhuset.no2008-03-08 → 2008-03-08 · 3 obs
● 2008-03-08 02:51:24
○ 2015-10-28 15:58:22
○ 2026-04-15 08:04:44
●MXw01ba494.kasserver.com2026-04-10 → 2026-04-15 · 3 obs
○ 2015-10-28 15:58:22
● 2026-04-10 23:21:58
● 2026-04-15 08:04:44
●A104.21.37.202026-04-10 → 2026-04-15 · 3 obs
○ 2015-10-28 15:58:22
● 2026-04-10 23:21:58
● 2026-04-15 08:04:44
●A172.67.203.682026-04-10 → 2026-04-15 · 3 obs
○ 2015-10-28 15:58:22
● 2026-04-10 23:21:58
● 2026-04-15 08:04:44
●A2606:4700:3030::6815:25142026-04-10 → 2026-04-15 · 3 obs
○ 2015-10-28 15:58:22
● 2026-04-10 23:21:58
● 2026-04-15 08:04:44
●A2606:4700:3036::ac43:cb442026-04-10 → 2026-04-15 · 3 obs
○ 2015-10-28 15:58:22
● 2026-04-10 23:21:58
● 2026-04-15 08:04:44
○A81.27.32.1302008-03-08 → 2008-03-08 · 3 obs
● 2008-03-08 02:51:24
○ 2015-10-28 15:58:22
○ 2026-04-15 08:04:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
contribution-margin.commary.ns.cloudflare.com, derek.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.154

NS records: mary.ns.cloudflare.com, derek.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contribution-margin.com (unsigned zone)

⏱️ Timing

Total: 306ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.203.68, 104.21.37.20
AAAA22606:4700:3030::6815:2514, 2606:4700:3036::ac43:cb44
NS2derek.ns.cloudflare.com, mary.ns.cloudflare.com
MX1w01ba494.kasserver.com (pri: 10)
TXT2google-site-verification=kX_PJBZOfZrIJtZ, v=spf1 a mx include:spf.kasserver.com ~a
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1derek.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

contribution-margin.com points to four IP numbers: 2606:4700:3030::6815:2514, 2606:4700:3036::ac43:cb44, 104.21.37.20 and 172.67.203.68.

Other host names including sindromedepanico.com.br, 012340.ru, diariox.com.br, sipemeda.com and www.airstar-eventos.mx share IP numbers with contribution-margin.com.

Name Servers

contribution-margin.com's delegation uses two name servers, derek.ns.cloudflare.com and mary.ns.cloudflare.com.

contribution-margin.com shares the same name server setup as other domains, for example four-oh-four.net, for-trem.ca, fillrxplus.net, samchem.pl and tiviconsolutions.com.

contribution-margin.com at least partially shares name servers with other domains, including kanjula.tv, atfcu.com, nssweb.net, turncage.com and djidi.net.

These name servers are often used together with erin.ns.cloudflare.com.

Host names with six IP numbers:

derek.ns.cloudflare.com points to: 2606:4700:58::adf5:3b9a, 2803:f800:50::6ca2:c19a, 2a06:98c1:50::ac40:219a, 108.162.193.154, 172.64.33.154 and 173.245.59.154.

mary.ns.cloudflare.com points to: 2606:4700:50::adf5:3a86, 2803:f800:50::6ca2:c086, 2a06:98c1:50::ac40:2086, 108.162.192.134, 172.64.32.134 and 173.245.58.134.

Mail Servers

contribution-margin.com is handled by a single mail server, w01ba494.kasserver.com.

w01ba494.kasserver.com points to a single IP: 85.13.165.198.