perfscience.com - dns.ninja

`perfscience.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:576a^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:a960^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.87.106^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.169.96^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lara.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a80^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c080^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2080^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lara.ns.cloudflare.com`
		A	108.162.192.128^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
		A	172.64.32.128^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
		A	173.245.58.128^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.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	`route3.mx.cloudflare.net` ⭐
		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`
MX	`route1.mx.cloudflare.net`⁽¹⁵⁾
		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	`route2.mx.cloudflare.net`⁽¹⁷⁾
		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`
TXT	`google-site-verification=ekYskGTBvWVLtdtUSg-phVAQ_lMx4gSdtDE7EH3JBkw`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.87.106, 172.67.169.96
		IPv6 hints	2606:4700:3033::6815:576a, 2606:4700:3033::ac43:a960
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=19, name=cloudflare-ech.com
SOA	`lara.ns.cloudflare.com`dns@cloudflare.com serial=2407706439

`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=1783250456

rank #759038 globally
rank #330379 in the tld
WOT: SAFE (90/100)

Same first word

perfscience.com

DNS History

18 records (9 active, 9 former)

○NSgabe.ns.cloudflare.com2015-08-07 → 2016-05-11 · 4 obs

● 2015-08-07 19:44:20
● 2016-05-11 00:01:58
○ 2026-02-19 09:01:12
○ 2026-07-05 11:22:20

●NSlara.ns.cloudflare.com2026-02-19 → 2026-07-05 · 3 obs

○ 2016-05-11 00:01:58
● 2026-02-19 09:01:12
● 2026-07-05 11:22:20

●NSmarek.ns.cloudflare.com2026-02-19 → 2026-07-05 · 3 obs

○ 2016-05-11 00:01:58
● 2026-02-19 09:01:12
● 2026-07-05 11:22:20

○NSnina.ns.cloudflare.com2015-08-07 → 2016-05-11 · 4 obs

● 2015-08-07 19:44:20
● 2016-05-11 00:01:58
○ 2026-02-19 09:01:12
○ 2026-07-05 11:22:20

○MXdc-43414dfc.perfscience.com2015-08-07 → 2016-05-11 · 4 obs

● 2015-08-07 19:44:20
● 2016-05-11 00:01:58
○ 2026-02-19 09:01:12
○ 2026-07-05 11:22:20

●MXroute1.mx.cloudflare.net2026-02-19 → 2026-07-05 · 3 obs

○ 2016-05-11 00:01:58
● 2026-02-19 09:01:12
● 2026-07-05 11:22:20

●MXroute2.mx.cloudflare.net2026-02-19 → 2026-07-05 · 3 obs

○ 2016-05-11 00:01:58
● 2026-02-19 09:01:12
● 2026-07-05 11:22:20

●MXroute3.mx.cloudflare.net2026-02-19 → 2026-07-05 · 3 obs

○ 2016-05-11 00:01:58
● 2026-02-19 09:01:12
● 2026-07-05 11:22:20

●A104.21.87.1062026-02-19 → 2026-07-05 · 3 obs

○ 2016-05-11 00:01:58
● 2026-02-19 09:01:12
● 2026-07-05 11:22:20

○A104.28.10.522015-08-07 → 2016-05-11 · 4 obs

● 2015-08-07 19:44:20
● 2016-05-11 00:01:58
○ 2026-02-19 09:01:12
○ 2026-07-05 11:22:20

○A104.28.11.522015-08-07 → 2016-05-11 · 4 obs

● 2015-08-07 19:44:20
● 2016-05-11 00:01:58
○ 2026-02-19 09:01:12
○ 2026-07-05 11:22:20

●A172.67.169.962026-02-19 → 2026-07-05 · 3 obs

○ 2016-05-11 00:01:58
● 2026-02-19 09:01:12
● 2026-07-05 11:22:20

○A2400:cb00:2048:1::681c:a342015-08-07 → 2016-05-11 · 4 obs

● 2015-08-07 19:44:20
● 2016-05-11 00:01:58
○ 2026-02-19 09:01:12
○ 2026-07-05 11:22:20

○A2400:cb00:2048:1::681c:b342015-08-07 → 2016-05-11 · 4 obs

● 2015-08-07 19:44:20
● 2016-05-11 00:01:58
○ 2026-02-19 09:01:12
○ 2026-07-05 11:22:20

●A2606:4700:3033::6815:576a2026-07-05 → 2026-07-05 · 2 obs

○ 2026-05-24 19:52:10
● 2026-07-05 11:22:20

●A2606:4700:3033::ac43:a9602026-07-05 → 2026-07-05 · 2 obs

○ 2026-05-24 19:52:10
● 2026-07-05 11:22:20

○A2606:4700:3035::6815:576a2026-02-19 → 2026-05-24 · 4 obs

○ 2016-05-11 00:01:58
● 2026-02-19 09:01:12
● 2026-05-24 19:52:10
○ 2026-07-05 11:22:20

○A2606:4700:3037::ac43:a9602026-02-19 → 2026-05-24 · 4 obs

○ 2016-05-11 00:01:58
● 2026-02-19 09:01:12
● 2026-05-24 19:52:10
○ 2026-07-05 11:22:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
perfscience.com	lara.ns.cloudflare.com, marek.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.128

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for perfscience.com (unsigned zone)

⏱️ Timing

Total: 121ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.169.96, 104.21.87.106`
AAAA	2	`2606:4700:3033::6815:576a, 2606:4700:3033::ac43:a960`
NS	2	`lara.ns.cloudflare.com, marek.ns.cloudflare.com`
MX	3	`route1.mx.cloudflare.net (pri: 15), route2.mx.cloudflare.net (pri: 17)...`
TXT	2	`google-site-verification=ekYskGTBvWVLtdt, v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`lara.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

perfscience.com points to the four IP addresses 104.21.87.106, 172.67.169.96, 2606:4700:3033::6815:576a and 2606:4700:3033::ac43:a960.

jacktopcasino.com.nl, www.artondemand.com.br, gavinengel.com plus two other host names have IP numbers in common with perfscience.com.

Name Servers

perfscience.com has two authoritative name servers — lara.ns.cloudflare.com and marek.ns.cloudflare.com.

The name server configuration of perfscience.com is shared with other domains, for instance gayboree.com, openai-pro.cyou, blum-partner.com and two others.

The name servers of perfscience.com overlap at least partially with those of other domains — among them shophass.com, zzb.org.pl, coils.dev and two more.

These name servers commonly appear in combination with the name servers anna.ns.cloudflare.com.

Hosts with 6 IP addresses each:

lara.ns.cloudflare.com points to 108.162.192.128, 172.64.32.128, 173.245.58.128 and 3 other IP addresses.

marek.ns.cloudflare.com points to 108.162.193.202, 172.64.33.202, 173.245.59.202 and 3 other IP addresses.

Mail Servers

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

At least some of the mail servers used by perfscience.com are shared with other domains: inversionescontinental.com, taive.net, usautopartsdirects.com and two others among them.

Hosts with 6 IP addresses each:

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.