`firstderivative.com`

DNSSEC	⚠️ Not signed
A	2606:4700:4405::6812:255c^{🇺🇸 Cloudflare2606:4700:4405::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:4405::ac40:96a4^{🇺🇸 Cloudflare2606:4700:4405::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.37.92^{Cloudflare104.18.37.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.64.150.164^{🇺🇸 Cloudflare172.64.150.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harleigh.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:263a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harleigh.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c23a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harleigh.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:223a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harleigh.ns.cloudflare.com`
		A	108.162.194.58^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harleigh.ns.cloudflare.com`
		A	162.159.38.58^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harleigh.ns.cloudflare.com`
		A	172.64.34.58^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harleigh.ns.cloudflare.com`
NS	`marek.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marek.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marek.ns.cloudflare.com`
		A	108.162.193.202^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	172.64.33.202^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	173.245.59.202^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
MX	`firstderivative-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::8^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db5pr02cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::1^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr07cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::3^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am6pr04cu00303.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::4^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr04cu00504.inbound.protection.outlook.com`
		A	52.101.68.3^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00403.inbound.protection.outlook.com`
		A	52.101.68.10^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbbpr03cu00102.inbound.protection.outlook.com`
		A	52.101.73.11^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am1pr04cu00103.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
TXT	`ZOOM_verify_njihBJw1SNL4fO8sxIObyO`
TXT	`google-site-verification=pkYNdt4HA2ylFC_iJuh2c_jV0_yozU9ejjzUsX_p9CY`
TXT	`google-site-verification=tYO7KMqg-U4CSZvAe4lii9-JtsfuslB-RcBY518VN8s`
TXT	`mandrill_verify.AsyfcrTTpN2qmGbjl4UlCg`
TXT	`miro-verification=30ebf3e2b5dcb69be7e0ebd3245b4a323171cad8`
TXT	`v=spf1 ip4:80.169.143.229 ip4:203.169.11.2 ip4:208.100.16.170 ip4:70.42.76.5 ...`
HTTPS	HTTP/2 ✓ hints match
		IPv4	104.18.37.92, 172.64.150.164
		IPv6	2606:4700:4405::6812:255c, 2606:4700:4405::ac40:96a4
SOA	`harleigh.ns.cloudflare.com`dns@cloudflare.com serial=2396112917

`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=1771291435

DNS History

14 records (7 active, 7 former)

●NSharleigh.ns.cloudflare.com2026-03-14 → 2026-03-14 · 3 obs

○ 2020-03-04 18:02:32
● 2026-03-14 12:42:56
● 2026-03-14 12:42:58

●NSmarek.ns.cloudflare.com2026-03-14 → 2026-03-14 · 3 obs

○ 2020-03-04 18:02:32
● 2026-03-14 12:42:56
● 2026-03-14 12:42:58

○NSns1.wfdns.com2007-10-23 → 2020-03-04 · 4 obs

● 2007-10-23 19:23:54
● 2020-03-04 18:02:32
○ 2026-03-14 12:42:56
○ 2026-03-14 12:42:58

○NSns2.wfdns.com2007-10-23 → 2020-03-04 · 4 obs

● 2007-10-23 19:23:54
● 2020-03-04 18:02:32
○ 2026-03-14 12:42:56
○ 2026-03-14 12:42:58

●MXfirstderivative-com.mail.protection.outlook.com2026-03-14 → 2026-03-14 · 3 obs

○ 2020-03-04 18:02:32
● 2026-03-14 12:42:56
● 2026-03-14 12:42:58

○MXfirstderivative.com2015-08-05 → 2020-03-04 · 5 obs

○ 2007-10-23 19:23:54
● 2015-08-05 06:04:48
● 2020-03-04 18:02:32
○ 2026-03-14 12:42:56
○ 2026-03-14 12:42:58

○MXmf2.ijnet.net2007-10-23 → 2007-10-23 · 3 obs

● 2007-10-23 19:23:54
○ 2015-08-05 06:04:48
○ 2026-03-14 12:42:58

●A104.18.37.922026-03-14 → 2026-03-14 · 3 obs

○ 2020-03-04 18:02:32
● 2026-03-14 12:42:56
● 2026-03-14 12:42:58

●A172.64.150.1642026-03-14 → 2026-03-14 · 3 obs

○ 2020-03-04 18:02:32
● 2026-03-14 12:42:56
● 2026-03-14 12:42:58

●A2606:4700:4405::6812:255c2026-03-14 → 2026-03-14 · 3 obs

○ 2020-03-04 18:02:32
● 2026-03-14 12:42:56
● 2026-03-14 12:42:58

●A2606:4700:4405::ac40:96a42026-03-14 → 2026-03-14 · 3 obs

○ 2020-03-04 18:02:32
● 2026-03-14 12:42:56
● 2026-03-14 12:42:58

○A50.23.231.1702015-08-05 → 2017-04-04 · 5 obs

○ 2007-10-23 19:23:54
● 2015-08-05 06:04:48
● 2017-04-04 19:39:06
○ 2020-03-04 18:02:32
○ 2026-03-14 12:42:58

○A66.98.244.612007-10-23 → 2007-10-23 · 3 obs

● 2007-10-23 19:23:54
○ 2015-08-05 06:04:48
○ 2026-03-14 12:42:58

○A75.126.157.1922020-03-04 → 2020-03-04 · 4 obs

○ 2017-04-04 19:39:06
● 2020-03-04 18:02:32
○ 2026-03-14 12:42:56
○ 2026-03-14 12:42:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, k.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net...	-
firstderivative.com	marek.ns.cloudflare.com, harleigh.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.193.202

NS records: marek.ns.cloudflare.com, harleigh.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstderivative.com (unsigned zone)

⏱️ Timing

Total: 912ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.64.150.164, 104.18.37.92`
AAAA	2	`2606:4700:4405::ac40:96a4, 2606:4700:4405::6812:255c`
NS	2	`harleigh.ns.cloudflare.com, marek.ns.cloudflare.com`
MX	1	`firstderivative-com.mail.protection.outl`
TXT	6	`ZOOM_verify_njihBJw1SNL4fO8sxIObyO, google-site-verification=pkYNdt4HA2ylFC_...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`harleigh.ns.cloudflare.com dns.cloudflar`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

firstderivative.com points to four IP numbers: 2606:4700:4405::6812:255c, 2606:4700:4405::ac40:96a4, 104.18.37.92 and 172.64.150.164.

For instance, other host names bamaperformance.com, thinx.forsale, jnjmedicalcloud.co.il, www.bbg.bet and contextartmiami.com share IP numbers with firstderivative.com.

Name Servers

firstderivative.com is delegated to two name servers: harleigh.ns.cloudflare.com and marek.ns.cloudflare.com.

firstderivative.com uses the same name server setup as other domains such as my-t-mobile-guest.com, stage.epam.com, neoris.com, epam.tv and forefrontcorp.com.

firstderivative.com shares name servers with other domains at least partially, for example ugg-avstralia.ru, qisell.com, revive.social, 78win-4.biz and bigbill.com.

These name servers are commonly used with the name servers peyton.ns.cloudflare.com and anna.ns.cloudflare.com.

Host names with six IP numbers: host name harleigh.ns.cloudflare.com points to: 2606:4700:50::a29f:263a, 2803:f800:50::6ca2:c23a, 2a06:98c1:50::ac40:223a, 108.162.194.58, 162.159.38.58 and 172.64.34.58; host name marek.ns.cloudflare.com points to: 2606:4700:58::adf5:3bca, 2803:f800:50::6ca2:c1ca, 2a06:98c1:50::ac40:21ca, 108.162.193.202, 172.64.33.202 and 173.245.59.202.

Mail Servers

firstderivative.com is handled by a single mail server, firstderivative-com.mail.protection.outlook.com.

Host name firstderivative-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::8, 2a01:111:f403:ca09::1, 2a01:111:f403:ca09::3, 2a01:111:f403:ca09::4, 52.101.68.3, 52.101.68.10, 52.101.73.11 and 52.101.73.15.

firstderivative.com - robtex.com