`usefulperiodictable.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:a271^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:42ac^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.66.172^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.162.113^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`nelci.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2698^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c298^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nelci.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2298^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nelci.ns.cloudflare.com`
		A	108.162.194.152^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
		A	162.159.38.152^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
		A	172.64.34.152^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
NS	`quincy.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c27^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quincy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c327^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`quincy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2327^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`quincy.ns.cloudflare.com`
		A	108.162.195.39^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quincy.ns.cloudflare.com`
		A	162.159.44.39^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quincy.ns.cloudflare.com`
		A	172.64.35.39^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quincy.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽³⁴⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽⁵⁰⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.66.172, 172.67.162.113
		IPv6 hints	2606:4700:3030::ac43:a271, 2606:4700:3032::6815:42ac
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=10, name=cloudflare-ech.com
SOA	`nelci.ns.cloudflare.com`dns@cloudflare.com serial=2411699464

`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=1786635789

Same first word

usefulperiodictable.com

DNS History

11 records (9 active, 2 former)

●NSnelci.ns.cloudflare.com2026-06-03 → 2026-08-13 · 2 obs

● 2026-06-03 10:14:14
● 2026-08-13 15:50:44

●NSquincy.ns.cloudflare.com2026-06-03 → 2026-08-13 · 2 obs

● 2026-06-03 10:14:14
● 2026-08-13 15:50:44

●MXroute1.mx.cloudflare.net2026-06-03 → 2026-08-13 · 2 obs

● 2026-06-03 10:14:14
● 2026-08-13 15:50:44

●MXroute2.mx.cloudflare.net2026-06-03 → 2026-08-13 · 2 obs

● 2026-06-03 10:14:14
● 2026-08-13 15:50:44

●MXroute3.mx.cloudflare.net2026-06-03 → 2026-08-13 · 2 obs

● 2026-06-03 10:14:14
● 2026-08-13 15:50:44

●A104.21.66.1722026-06-03 → 2026-08-13 · 2 obs

● 2026-06-03 10:14:14
● 2026-08-13 15:50:44

●A172.67.162.1132026-06-03 → 2026-08-13 · 2 obs

● 2026-06-03 10:14:14
● 2026-08-13 15:50:44

●A2606:4700:3030::ac43:a2712026-06-26 → 2026-08-13 · 3 obs

○ 2026-06-03 10:14:14
● 2026-06-26 06:55:54
● 2026-08-13 15:50:44

●A2606:4700:3032::6815:42ac2026-06-26 → 2026-08-13 · 3 obs

○ 2026-06-03 10:14:14
● 2026-06-26 06:55:54
● 2026-08-13 15:50:44

○A2606:4700:3033::ac43:a2712026-06-03 → 2026-06-03 · 3 obs

● 2026-06-03 10:14:14
○ 2026-06-26 06:55:54
○ 2026-08-13 15:50:44

○A2606:4700:3035::6815:42ac2026-06-03 → 2026-06-03 · 3 obs

● 2026-06-03 10:14:14
○ 2026-06-26 06:55:54
○ 2026-08-13 15:50:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
usefulperiodictable.com	nelci.ns.cloudflare.com, quincy.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.39

NS records: nelci.ns.cloudflare.com, quincy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for usefulperiodictable.com (unsigned zone)

⏱️ Timing

Total: 153ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.66.172, 172.67.162.113`
AAAA	2	`2606:4700:3032::6815:42ac, 2606:4700:3030::ac43:a271`
NS	2	`nelci.ns.cloudflare.com, quincy.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 2), route1.mx.cloudflare.net (pri: 34)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`nelci.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

usefulperiodictable.com points to the four IP addresses 104.21.66.172, 172.67.162.113, 2606:4700:3030::ac43:a271 and 2606:4700:3032::6815:42ac.

Among the host names that share IP numbers with usefulperiodictable.com are robotfactory.nl, tayo4d671.com, misteribet77.one and two others.

Name Servers

usefulperiodictable.com has two authoritative name servers — nelci.ns.cloudflare.com and quincy.ns.cloudflare.com.

usefulperiodictable.com has the same name server delegation as a number of other domains, such as fatpiratecasinofr.org, cincinnatisalvagepool.com, adesawashingtondc.com and two more.

The name servers of usefulperiodictable.com overlap at least partially with those of other domains — among them xw9.games, zkagri.com, sjzhsj.com and two more.

These name servers commonly co-occur with the name servers eva.ns.cloudflare.com, rustam.ns.cloudflare.com, fattouche.ns.cloudflare.com and julissa.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

nelci.ns.cloudflare.com points to 108.162.194.152, 162.159.38.152, 172.64.34.152 and 3 other IP addresses.

quincy.ns.cloudflare.com points to 108.162.195.39, 162.159.44.39, 172.64.35.39 and 3 other IP addresses.

Mail Servers

Mail for usefulperiodictable.com is routed through three mail servers — route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

usefulperiodictable.com shares at least some of its mail servers with other domains — for example ailabs.ae, lucascavalheiro.com, arcomabstracts.com and two more.

Host names resolving to 6 IP numbers:

route1.mx.cloudflare.net points to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 other IP addresses.

route2.mx.cloudflare.net points to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 other IP addresses.

route3.mx.cloudflare.net points to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 other IP addresses.

usefulperiodictable.com - robtex.com