`first.edu`

DNSSEC	⚠️ Not signed
A	2606:4700:3108::ac42:292c^{🇺🇸 Cloudflare2606:4700:3108::/48 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3108::ac42:2ad4^{🇺🇸 Cloudflare2606:4700:3108::/48 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.66.41.44^{🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.66.42.212^{🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`james.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bb2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`james.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`james.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`james.ns.cloudflare.com`
		A	108.162.193.178^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`james.ns.cloudflare.com`
		A	172.64.33.178^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`james.ns.cloudflare.com`
		A	173.245.59.178^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`james.ns.cloudflare.com`
NS	`jo.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aac^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ac^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ac^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jo.ns.cloudflare.com`
		A	108.162.192.172^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	172.64.32.172^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	173.245.58.172^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
MX	`first-edu.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c91d::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-mw2pr04cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-mn2pr02cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:f90a::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn6pr02cu00300.inbound.protection.outlook.com`
		A	2a01:111:f403:f913::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy5pr05cu00101.inbound.protection.outlook.com`
		A	52.101.11.13^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr0501cu00205.inbound.protection.outlook.com`
		A	52.101.41.22^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00406.inbound.protection.outlook.com`
		A	52.101.41.58^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr02cu00102.inbound.protection.outlook.com`
		A	52.101.194.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch5pr02cu00200.inbound.protection.outlook.com`
TXT	`TsmcMQYxFX3NFUzAKHOKPAXhfaDQkXqNNMgjIgItTVI=`
TXT	`adobe-idp-site-verification=9d9b9e8f5a8be7e1570c1e5f7292be775000dea79e2d211fc...`
TXT	`apple-domain-verification=3qIbmwqMxOzK49Q7`
TXT	`google-site-verification=XIZq_5SeIBOytOhScgsCCp-kmi5NTBBxyZqfzO3m3nY`
TXT	`google-site-verification=efjstDOrgFO_et8bQJlpSnTdKisCvR0PZdkjTWOnn9k`
TXT	`v=spf1 ip4:64.207.176.10 include:spf.protection.outlook.com ~all`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	172.66.41.44, 172.66.42.212
		IPv6 hints	2606:4700:3108::ac42:292c, 2606:4700:3108::ac42:2ad4
SOA	`james.ns.cloudflare.com`dns@cloudflare.com serial=2409190121

`edu`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.edu-servers.net` ⭐
	NS	`b.edu-servers.net`
	NS	`c.edu-servers.net`
	NS	`d.edu-servers.net`
	NS	`e.edu-servers.net`
	NS	`f.edu-servers.net`
	NS	`g.edu-servers.net`
	NS	`h.edu-servers.net`
	NS	`i.edu-servers.net`
	NS	`j.edu-servers.net`
	NS	`k.edu-servers.net`
	NS	`l.edu-servers.net`
	NS	`m.edu-servers.net`
	SOA	`a.edu-servers.net`nstld@verisign-grs.com serial=1783984682

Subdomains

blog.first.edu

svr.first.edu

www.first.edu

Same first word

first.no

first.pictures

first.org

first.sg

first.plus

first.at

first.capital

first.media

first.cash

first.bz

first.jp.net

first.academy

first.in.ua

first.run

first.fish

first.dk

first.sa

first.cl

first.center

first.hu

first.green

first.ir

first.events

first.bg

first.com.mx

first.me

first.co.il

first.report

first.or.kr

first.net.ua

first.ua

first.ag

first.si

first.ca

first.ly

first.cn

first.church

first.ie

first.eu

first.gr

first.dev

first.com

first.io

first.ltd

first.com.my

first.lv

first.st

first.name

first.ro

first.club.tw

first.net.my

first.in

first.ne.jp

first.glass

first.vc

first.li

first.com.ua

first.us

first.training

first.support

first.tv

first.biz.ua

first.social

first.com.au

first.lib.ms.us

first.pt

first.es

first.news

first.am

first.tours

first.in-berlin.de

first.tech

first.restaurant

first.camera

first.edu

first.com.tr

first.vip

first.al

first.com.eg

first.fr

first.com.pl

first.com.jo

first.de

first.com.qa

first.is

first.global

first.digital

first.plumbing

first.dp.ua

first.vn

first.pe.kr

first.games

first.myshopify.com

first.ru

first.email

first.rs

first.camp

first.tools

first.bank

first.pet

first.ventures

first.gov.il

first.to

first.com.tw

first.com.es

first.co.uk

first.net

first.wtf

first.farm

first.biz

first.info

first.uz

first.vote

first.school

first.today

Similar names

frits.ca

frist.be

fistr.com

fisrt.com

frits.in

rifts.ru

istrf.org

sitfr.it

frits.us

srfit.com

fisrt.net

frits.nl

frist.us

frist.org.uk

frits.vlaanderen

frtis.vip

strfi.com

rifst.ru

frits.de

frist.com.cn

frits.at

frist.org

srfti.ac.in

frist.dk

ifrts.cn

ritsf.com

siftr.in

rifts.to

frist.com

frits.ch

irtfs.com

rftsi.com

rifts.finance

rifts.net

fsirt.com

fsrit.com

frits.com

frits.be

frist.at

trifs.co.uk

frist.eu

DNS History

10 records (7 active, 3 former)

●NSjames.ns.cloudflare.com2026-02-16 → 2026-07-13 · 3 obs

○ 2017-11-06 19:51:50
● 2026-02-16 00:03:22
● 2026-07-13 23:25:12

●NSjo.ns.cloudflare.com2026-02-16 → 2026-07-13 · 3 obs

○ 2017-11-06 19:51:50
● 2026-02-16 00:03:22
● 2026-07-13 23:25:12

○NSns1.websitehostserver.net2016-12-05 → 2017-11-06 · 4 obs

● 2016-12-05 02:58:42
● 2017-11-06 19:51:50
○ 2026-02-16 00:03:22
○ 2026-07-13 23:25:12

○NSns2.websitehostserver.net2016-12-05 → 2017-11-06 · 4 obs

● 2016-12-05 02:58:42
● 2017-11-06 19:51:50
○ 2026-02-16 00:03:22
○ 2026-07-13 23:25:12

●MXfirst-edu.mail.protection.outlook.com2016-12-05 → 2026-07-13 · 2 obs

● 2016-12-05 02:58:42
● 2026-07-13 23:25:12

○A108.178.27.22016-12-05 → 2017-11-06 · 4 obs

● 2016-12-05 02:58:42
● 2017-11-06 19:51:50
○ 2026-02-16 00:03:22
○ 2026-07-13 23:25:12

●A172.66.41.442026-02-16 → 2026-07-13 · 3 obs

○ 2017-11-06 19:51:50
● 2026-02-16 00:03:22
● 2026-07-13 23:25:12

●A172.66.42.2122026-02-16 → 2026-07-13 · 3 obs

○ 2017-11-06 19:51:50
● 2026-02-16 00:03:22
● 2026-07-13 23:25:12

●A2606:4700:3108::ac42:292c2026-02-16 → 2026-07-13 · 3 obs

○ 2017-11-06 19:51:50
● 2026-02-16 00:03:22
● 2026-07-13 23:25:12

●A2606:4700:3108::ac42:2ad42026-02-16 → 2026-07-13 · 3 obs

○ 2017-11-06 19:51:50
● 2026-02-16 00:03:22
● 2026-07-13 23:25:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
edu	d.edu-servers.net, b.edu-servers.net, f.edu-servers.net, h.edu-servers.net...	-
first.edu	james.ns.cloudflare.com, jo.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.172

NS records: james.ns.cloudflare.com, jo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for first.edu (unsigned zone)

⏱️ Timing

Total: 523ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.66.42.212, 172.66.41.44`
AAAA	2	`2606:4700:3108::ac42:2ad4, 2606:4700:3108::ac42:292c`
NS	2	`james.ns.cloudflare.com, jo.ns.cloudflare.com`
MX	1	`first-edu.mail.protection.outlook.com (p`
TXT	6	`TsmcMQYxFX3NFUzAKHOKPAXhfaDQkXqNNMgjIgIt, adobe-idp-site-verification=9d9b9e8f5a8b...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`james.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

first.edu sits above blog.first.edu, svr.first.edu and www.first.edu in the domain hierarchy.

IP Addresses

first.edu directs to four IP numbers, which are 172.66.41.44, 172.66.42.212, 2606:4700:3108::ac42:292c and 2606:4700:3108::ac42:2ad4.

Additional host names — www.wordcounter.net, so.enf.br, aeapostaesportiva.com and two others — share IP numbers with first.edu.

Name Servers

first.edu has two authoritative name servers — james.ns.cloudflare.com and jo.ns.cloudflare.com.

first.edu shares its name server setup with other domains, including acubeautytherapy.com, lesterchan.net, internetroulettereview.com and two others.

There is at least partial name server overlap between first.edu and other domains — fotbollstrojorpanatet.com, zeustoto88fbads5.sbs, multistartv.com and two more among them.

These name servers are routinely deployed together with the name servers vivienne.ns.cloudflare.com.

Host names with 6 IP numbers:

james.ns.cloudflare.com points to 108.162.193.178, 172.64.33.178, 173.245.59.178 and 3 other IP addresses.

jo.ns.cloudflare.com points to 108.162.192.172, 172.64.32.172, 173.245.58.172 and 3 other IP addresses.

Mail Servers

first.edu has one mail server: first-edu.mail.protection.outlook.com.

first-edu.mail.protection.outlook.com points to 8 IP numbers: 52.101.11.13, 52.101.41.22, 52.101.41.58 and 5 other.

first.edu - robtex.com

first.edu

edu

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`first.edu`

`edu`