`thelastlectures.com`

DNSSEC	⚠️ Not signed
A	216.150.1.193^{🇨🇦 Amazon216.150.1.0/24 EC2 Prefix}
NS	`lady.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a7f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lady.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c07f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lady.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:207f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lady.ns.cloudflare.com`
		A	108.162.192.127^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lady.ns.cloudflare.com`
		A	172.64.32.127^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lady.ns.cloudflare.com`
		A	173.245.58.127^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lady.ns.cloudflare.com`
NS	`logan.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bc6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`logan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1c6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`logan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21c6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`logan.ns.cloudflare.com`
		A	108.162.193.198^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`logan.ns.cloudflare.com`
		A	172.64.33.198^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`logan.ns.cloudflare.com`
		A	173.245.59.198^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`logan.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c0b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f27.1e100.net`
		A	142.251.179.26^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
SOA	`lady.ns.cloudflare.com`dns@cloudflare.com serial=2411384624

`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=1786349734

Same first word

thelastlectures.com

DNS History

15 records (8 active, 7 former)

●NSlady.ns.cloudflare.com2026-07-19 → 2026-08-10 · 3 obs

○ 2017-10-13 08:55:38
● 2026-07-19 18:11:38
● 2026-08-10 08:32:50

●NSlogan.ns.cloudflare.com2026-07-19 → 2026-08-10 · 3 obs

○ 2017-10-13 08:55:38
● 2026-07-19 18:11:38
● 2026-08-10 08:32:50

○NSns57.1and1.com2015-08-19 → 2017-10-13 · 4 obs

● 2015-08-19 17:37:52
● 2017-10-13 08:55:38
○ 2026-07-19 18:11:38
○ 2026-08-10 08:32:50

○NSns58.1and1.com2015-08-19 → 2017-10-13 · 4 obs

● 2015-08-19 17:37:52
● 2017-10-13 08:55:38
○ 2026-07-19 18:11:38
○ 2026-08-10 08:32:50

●MXalt1.aspmx.l.google.com2026-07-19 → 2026-08-10 · 3 obs

○ 2017-10-13 08:55:38
● 2026-07-19 18:11:38
● 2026-08-10 08:32:50

●MXalt2.aspmx.l.google.com2026-07-19 → 2026-08-10 · 3 obs

○ 2017-10-13 08:55:38
● 2026-07-19 18:11:38
● 2026-08-10 08:32:50

●MXalt3.aspmx.l.google.com2026-07-19 → 2026-08-10 · 3 obs

○ 2017-10-13 08:55:38
● 2026-07-19 18:11:38
● 2026-08-10 08:32:50

●MXalt4.aspmx.l.google.com2026-07-19 → 2026-08-10 · 3 obs

○ 2017-10-13 08:55:38
● 2026-07-19 18:11:38
● 2026-08-10 08:32:50

●MXaspmx.l.google.com2026-07-19 → 2026-08-10 · 3 obs

○ 2017-10-13 08:55:38
● 2026-07-19 18:11:38
● 2026-08-10 08:32:50

○MXmx00.1and1.com2015-08-19 → 2017-10-13 · 4 obs

● 2015-08-19 17:37:52
● 2017-10-13 08:55:38
○ 2026-07-19 18:11:38
○ 2026-08-10 08:32:50

○MXmx01.1and1.com2015-08-19 → 2017-10-13 · 4 obs

● 2015-08-19 17:37:52
● 2017-10-13 08:55:38
○ 2026-07-19 18:11:38
○ 2026-08-10 08:32:50

●A216.150.1.1932026-07-19 → 2026-08-10 · 3 obs

○ 2017-10-13 08:55:38
● 2026-07-19 18:11:38
● 2026-08-10 08:32:50

○A74.208.136.902015-08-19 → 2016-04-19 · 4 obs

● 2015-08-19 17:37:52
● 2016-04-19 19:18:00
○ 2016-12-03 14:08:32
○ 2026-08-10 08:32:50

○A74.208.23.992016-12-03 → 2016-12-03 · 4 obs

○ 2016-04-19 19:18:00
● 2016-12-03 14:08:32
○ 2017-10-13 08:55:38
○ 2026-08-10 08:32:50

○A74.208.236.2392017-10-13 → 2017-10-13 · 4 obs

○ 2016-12-03 14:08:32
● 2017-10-13 08:55:38
○ 2026-07-19 18:11:38
○ 2026-08-10 08:32:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
thelastlectures.com	lady.ns.cloudflare.com, logan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.127

NS records: lady.ns.cloudflare.com, logan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thelastlectures.com (unsigned zone)

⏱️ Timing

Total: 144ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.150.1.193`
NS	2	`lady.ns.cloudflare.com, logan.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
SOA	1	`lady.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

thelastlectures.com points to a single IP number: 216.150.1.193.

Additional host names — c2f5684d6ce4f5dc.vercel-dns-016.com, e97bcb21a01313cc.vercel-dns-016.com, 4f73218abebf394a.vercel-dns-016.com and two others — share IP numbers with thelastlectures.com.

Name Servers

The NS records for thelastlectures.com delegate to lady.ns.cloudflare.com and logan.ns.cloudflare.com.

thelastlectures.com shares its name server setup with other domains, including resortsatlanticcity.us, cager.name, workinmenvideos.com and two others.

At least some of thelastlectures.com's name servers are shared with other domains, for example tbkwatch.com, abdullahgok.com.tr, justav.net and two more.

These name servers are often deployed together with the name servers cheryl.ns.cloudflare.com, adaline.ns.cloudflare.com, norm.ns.cloudflare.com and rick.ns.cloudflare.com.

Host names with 6 IP numbers:

lady.ns.cloudflare.com maps to 108.162.192.127, 172.64.32.127, 173.245.58.127 and 3 additional IP addresses.

logan.ns.cloudflare.com maps to 108.162.193.198, 172.64.33.198, 173.245.59.198 and 3 additional IP addresses.

Mail Servers

Five mail servers handle thelastlectures.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

thelastlectures.com shares mail servers — at least in part — with other domains, including myhapa.org, v12software.com, onkamimarlik.com and two others.

These mail servers are frequently used alongside mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other.

Host names with two IP numbers:

The A records for aspmx.l.google.com return 142.251.179.26 and 2607:f8b0:4004:c0b::1b.

The A records for alt1.aspmx.l.google.com return 192.178.234.27 and 2800:3f0:4003:c14::1b.

The A records for alt2.aspmx.l.google.com return 172.253.116.27 and 2a00:1450:400b:c02::1b.

The A records for alt3.aspmx.l.google.com return 192.178.223.26 and 2a00:1450:4009:c0f::1b.

The A records for alt4.aspmx.l.google.com return 172.253.157.26 and 2a00:1450:400c:c23::1b.