`f-lesson.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:90a8^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:5f72^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.95.114^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.144.168^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`fiona.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a9d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fiona.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c09d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`fiona.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:209d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`fiona.ns.cloudflare.com`
		A	108.162.192.157^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fiona.ns.cloudflare.com`
		A	172.64.32.157^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fiona.ns.cloudflare.com`
		A	173.245.58.157^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fiona.ns.cloudflare.com`
NS	`lochlan.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cea^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lochlan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3ea^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lochlan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23ea^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lochlan.ns.cloudflare.com`
		A	108.162.195.234^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lochlan.ns.cloudflare.com`
		A	162.159.44.234^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lochlan.ns.cloudflare.com`
		A	172.64.35.234^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lochlan.ns.cloudflare.com`
MX	`mx.stackmail.com` ⭐
		A	185.151.28.67^{🇬🇧 TWENTYI185.151.28.0/24}
			PTR	`mx.stackmail.com`
TXT	`v=spf1 include:spf.stackmail.com a mx -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.95.114, 172.67.144.168
		IPv6 hints	2606:4700:3035::ac43:90a8, 2606:4700:3036::6815:5f72
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=98, name=cloudflare-ech.com
SOA	`fiona.ns.cloudflare.com`dns@cloudflare.com serial=2402480445

`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=1778581321

Same first word

f-lesson.com

DNS History

18 records (7 active, 11 former)

●NSfiona.ns.cloudflare.com2026-02-16 → 2026-05-12 · 3 obs

○ 2020-01-29 21:41:06
● 2026-02-16 01:01:58
● 2026-05-12 10:33:58

●NSlochlan.ns.cloudflare.com2026-02-16 → 2026-05-12 · 3 obs

○ 2020-01-29 21:41:06
● 2026-02-16 01:01:58
● 2026-05-12 10:33:58

○NSns1.dns-server.jp2020-01-29 → 2020-01-29 · 4 obs

○ 2017-03-21 11:35:44
● 2020-01-29 21:41:06
○ 2026-02-16 01:01:58
○ 2026-05-12 10:33:58

○NSns1.seedsnetworks.com2015-06-09 → 2017-03-21 · 4 obs

● 2015-06-09 02:35:52
● 2017-03-21 11:35:44
○ 2020-01-29 21:41:06
○ 2026-05-12 10:33:58

○NSns2.dns-server.jp2020-01-29 → 2020-01-29 · 4 obs

○ 2017-03-21 11:35:44
● 2020-01-29 21:41:06
○ 2026-02-16 01:01:58
○ 2026-05-12 10:33:58

○NSns2.seedsnetworks.com2015-06-09 → 2017-03-21 · 4 obs

● 2015-06-09 02:35:52
● 2017-03-21 11:35:44
○ 2020-01-29 21:41:06
○ 2026-05-12 10:33:58

○NSns3.dns-server.jp2020-01-29 → 2020-01-29 · 4 obs

○ 2017-03-21 11:35:44
● 2020-01-29 21:41:06
○ 2026-02-16 01:01:58
○ 2026-05-12 10:33:58

○NSns4.dns-server.jp2020-01-29 → 2020-01-29 · 4 obs

○ 2017-03-21 11:35:44
● 2020-01-29 21:41:06
○ 2026-02-16 01:01:58
○ 2026-05-12 10:33:58

●MXmx.stackmail.com2026-02-16 → 2026-05-12 · 2 obs

● 2026-02-16 01:01:58
● 2026-05-12 10:33:58

●A104.21.95.1142026-02-16 → 2026-05-12 · 5 obs

○ 2020-01-29 21:41:06
● 2026-02-16 01:01:58
○ 2026-03-06 00:27:12
● 2026-04-15 08:15:12
● 2026-05-12 10:33:58

●A172.67.144.1682026-02-16 → 2026-05-12 · 5 obs

○ 2020-01-29 21:41:06
● 2026-02-16 01:01:58
○ 2026-03-06 00:27:12
● 2026-04-15 08:15:12
● 2026-05-12 10:33:58

○A188.114.96.02026-03-06 → 2026-03-06 · 4 obs

○ 2026-02-16 01:01:58
● 2026-03-06 00:27:12
○ 2026-04-15 08:15:12
○ 2026-05-12 10:33:58

○A188.114.97.02026-03-06 → 2026-03-06 · 4 obs

○ 2026-02-16 01:01:58
● 2026-03-06 00:27:12
○ 2026-04-15 08:15:12
○ 2026-05-12 10:33:58

○A203.183.110.1642015-06-09 → 2020-01-29 · 4 obs

● 2015-06-09 02:35:52
● 2020-01-29 21:41:06
○ 2026-02-16 01:01:58
○ 2026-05-12 10:33:58

●A2606:4700:3035::ac43:90a82026-02-16 → 2026-05-12 · 5 obs

○ 2020-01-29 21:41:06
● 2026-02-16 01:01:58
○ 2026-03-06 00:27:12
● 2026-04-15 08:15:12
● 2026-05-12 10:33:58

●A2606:4700:3036::6815:5f722026-02-16 → 2026-05-12 · 5 obs

○ 2020-01-29 21:41:06
● 2026-02-16 01:01:58
○ 2026-03-06 00:27:12
● 2026-04-15 08:15:12
● 2026-05-12 10:33:58

○A2a06:98c1:3120::2026-03-06 → 2026-03-06 · 4 obs

○ 2026-02-16 01:01:58
● 2026-03-06 00:27:12
○ 2026-04-15 08:15:12
○ 2026-05-12 10:33:58

○A2a06:98c1:3121::2026-03-06 → 2026-03-06 · 4 obs

○ 2026-02-16 01:01:58
● 2026-03-06 00:27:12
○ 2026-04-15 08:15:12
○ 2026-05-12 10:33:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net, g.gtld-servers.net...	-
f-lesson.com	fiona.ns.cloudflare.com, lochlan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.234

NS records: fiona.ns.cloudflare.com, lochlan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for f-lesson.com (unsigned zone)

⏱️ Timing

Total: 322ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.95.114, 172.67.144.168`
AAAA	2	`2606:4700:3036::6815:5f72, 2606:4700:3035::ac43:90a8`
NS	2	`fiona.ns.cloudflare.com, lochlan.ns.cloudflare.com`
MX	1	`mx.stackmail.com (pri: 10)`
TXT	1	`v=spf1 include:spf.stackmail.com a mx -a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`fiona.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

Four IP numbers are pointed to by f-lesson.com: 2606:4700:3035::ac43:90a8, 2606:4700:3036::6815:5f72, 104.21.95.114 and 172.67.144.168.

other host names including currency-converter.online, thetorah.org, fastfashion.gr, faithbox.us and zenwear.shop share IP numbers with f-lesson.com.

Name Servers

f-lesson.com is delegated to two name servers fiona.ns.cloudflare.com and lochlan.ns.cloudflare.com.

f-lesson.com shares the same name server setup as other domains, for instance braine-lalleud.com, highbridgecondo.com, jgtcl.com, suzukijimnypickups.co.uk and fathom.ai.

f-lesson.com at least partially shares name servers with other domains, for instance webspeedbeginner.com, kolramah.us, sjdfreak.in, soloupdates.com and hd(0x736578)it.com.

these name servers are commonly used alongside peter.ns.cloudflare.com.

Host names with six IP numbers:

Host name fiona.ns.cloudflare.com points to: 2606:4700:50::adf5:3a9d, 2803:f800:50::6ca2:c09d, 2a06:98c1:50::ac40:209d, 108.162.192.157, 172.64.32.157 and 173.245.58.157.

Host name lochlan.ns.cloudflare.com points to: 2606:4700:58::a29f:2cea, 2803:f800:50::6ca2:c3ea, 2a06:98c1:50::ac40:23ea, 108.162.195.234, 162.159.44.234 and 172.64.35.234.

Mail Servers

f-lesson.com is handled by a single mail server, mx.stackmail.com.

f-lesson.com shares the same mail server setup as other domains, for instance phatgiaolongan.com, immexpo-marseille.com, leedham-technologies.com, thegundgallery.org and michellebaxo.com.

mx.stackmail.com resolves to IP 185.151.28.67.

f-lesson.com - robtex.com

f-lesson.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`f-lesson.com`

`com`