dcscience.net - dns.ninja

`dcscience.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:9301^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:57d7^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.87.215^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.147.1^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`eric.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b70^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c170^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`eric.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2170^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`eric.ns.cloudflare.com`
		A	108.162.193.112^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
		A	172.64.33.112^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
		A	173.245.59.112^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
NS	`suzanne.ns.cloudflare.com`
		A	2606:4700:50::a29f:2657^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`suzanne.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c257^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`suzanne.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2257^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`suzanne.ns.cloudflare.com`
		A	108.162.194.87^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`suzanne.ns.cloudflare.com`
		A	162.159.38.87^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`suzanne.ns.cloudflare.com`
		A	172.64.34.87^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`suzanne.ns.cloudflare.com`
MX	`_dc-mx.ab06139a64b2.dcscience.net` ⭐
		A	80.87.131.115^{🇬🇧 POSITIVE-INTERNET-UK-AS80.87.131.0/24 Positive Infrastructure}
			PTR	`pod-115.dolphin-server.co.uk`
MX	`mailstore.positive-internet.com`⁽²⁰⁾
		A	80.87.128.146^{🇬🇧 POSITIVE-INTERNET-UK-AS80.87.128.0/23 Positive Infrastructure}
			PTR	`bludger.positive-internet.com`
			PTR	`mailstore.positive-internet.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.87.215, 172.67.147.1
		IPv6 hints	2606:4700:3031::ac43:9301, 2606:4700:3037::6815:57d7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=16, name=cloudflare-ech.com
SOA	`eric.ns.cloudflare.com`dns@cloudflare.com serial=2408563109

`net`

	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=1785737612

rank #160687 globally
rank #4706 in the tld
WOT: SAFE (95/100)
📈 Tranco rank: #531,874

Subdomains

mail.dcscience.net

Same first word

dcscience.co.kr

dcscience.net

Similar names

sciencedc.com

DNS History

22 records (8 active, 14 former)

○NSdns0.positive-internet.com2015-08-09 → 2026-04-21 · 4 obs

● 2015-08-09 02:51:26
● 2026-04-21 12:45:48
○ 2026-05-31 23:00:26
○ 2026-08-03 06:41:16

○NSdns1.positive-internet.com2015-08-09 → 2026-04-21 · 4 obs

● 2015-08-09 02:51:26
● 2026-04-21 12:45:48
○ 2026-05-31 23:00:26
○ 2026-08-03 06:41:16

●NSeric.ns.cloudflare.com2026-05-31 → 2026-08-03 · 3 obs

○ 2026-04-21 12:45:48
● 2026-05-31 23:00:26
● 2026-08-03 06:41:16

●NSsuzanne.ns.cloudflare.com2026-05-31 → 2026-08-03 · 3 obs

○ 2026-04-21 12:45:48
● 2026-05-31 23:00:26
● 2026-08-03 06:41:16

●MX_dc-mx.ab06139a64b2.dcscience.net2026-05-31 → 2026-08-03 · 3 obs

○ 2026-04-21 12:45:48
● 2026-05-31 23:00:26
● 2026-08-03 06:41:16

○MXmail.dcscience.net2015-08-09 → 2026-04-21 · 4 obs

● 2015-08-09 02:51:26
● 2026-04-21 12:45:48
○ 2026-05-31 23:00:26
○ 2026-08-03 06:41:16

●MXmailstore.positive-internet.com2015-08-09 → 2026-08-03 · 2 obs

● 2015-08-09 02:51:26
● 2026-08-03 06:41:16

●A104.21.87.2152026-05-31 → 2026-08-03 · 12 obs

○ 2026-04-21 12:45:48
● 2026-05-31 23:00:26
● 2026-06-08 05:29:10
○ 2026-06-08 22:03:32
○ 2026-06-09 20:29:26
● 2026-06-14 01:18:58
○ 2026-07-13 16:54:14
● 2026-07-14 08:47:40
○ 2026-07-27 09:33:20
● 2026-07-27 10:04:36
○ 2026-07-30 16:31:28
● 2026-08-03 06:41:16

●A172.67.147.12026-05-31 → 2026-08-03 · 12 obs

○A188.114.96.02026-06-08 → 2026-07-30 · 8 obs

○ 2026-06-08 05:29:10
● 2026-06-08 22:03:32
● 2026-06-09 20:29:26
○ 2026-06-14 01:18:58
● 2026-07-13 16:54:14
○ 2026-07-14 08:47:40
● 2026-07-30 16:31:28
○ 2026-08-03 06:41:16

○A188.114.96.42026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-14 08:47:40
● 2026-07-27 09:33:20
○ 2026-07-27 10:04:36
○ 2026-08-03 06:41:16

○A188.114.97.02026-06-08 → 2026-07-30 · 8 obs

○ 2026-06-08 05:29:10
● 2026-06-08 22:03:32
● 2026-06-09 20:29:26
○ 2026-06-14 01:18:58
● 2026-07-13 16:54:14
○ 2026-07-14 08:47:40
● 2026-07-30 16:31:28
○ 2026-08-03 06:41:16

○A188.114.97.42026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-14 08:47:40
● 2026-07-27 09:33:20
○ 2026-07-27 10:04:36
○ 2026-08-03 06:41:16

○A2606:4700:3031::6815:57d72026-05-31 → 2026-06-15 · 9 obs

○ 2026-04-21 12:45:48
● 2026-05-31 23:00:26
● 2026-06-08 05:29:10
○ 2026-06-08 22:03:32
○ 2026-06-09 20:29:26
● 2026-06-14 01:18:58
● 2026-06-15 20:20:52
○ 2026-07-12 22:19:10
○ 2026-08-03 06:41:16

●A2606:4700:3031::ac43:93012026-07-12 → 2026-08-03 · 8 obs

○ 2026-06-15 20:20:52
● 2026-07-12 22:19:10
○ 2026-07-13 16:54:14
● 2026-07-14 08:47:40
○ 2026-07-27 09:33:20
● 2026-07-27 10:04:36
○ 2026-07-30 16:31:28
● 2026-08-03 06:41:16

○A2606:4700:3035::ac43:93012026-05-31 → 2026-06-15 · 9 obs

●A2606:4700:3037::6815:57d72026-07-12 → 2026-08-03 · 8 obs

○ 2026-06-15 20:20:52
● 2026-07-12 22:19:10
○ 2026-07-13 16:54:14
● 2026-07-14 08:47:40
○ 2026-07-27 09:33:20
● 2026-07-27 10:04:36
○ 2026-07-30 16:31:28
● 2026-08-03 06:41:16

○A2a06:98c1:3120::2026-06-08 → 2026-07-30 · 8 obs

○ 2026-06-08 05:29:10
● 2026-06-08 22:03:32
● 2026-06-09 20:29:26
○ 2026-06-14 01:18:58
● 2026-07-13 16:54:14
○ 2026-07-14 08:47:40
● 2026-07-30 16:31:28
○ 2026-08-03 06:41:16

○A2a06:98c1:3120::42026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-14 08:47:40
● 2026-07-27 09:33:20
○ 2026-07-27 10:04:36
○ 2026-08-03 06:41:16

○A2a06:98c1:3121::2026-06-08 → 2026-07-30 · 8 obs

○ 2026-06-08 05:29:10
● 2026-06-08 22:03:32
● 2026-06-09 20:29:26
○ 2026-06-14 01:18:58
● 2026-07-13 16:54:14
○ 2026-07-14 08:47:40
● 2026-07-30 16:31:28
○ 2026-08-03 06:41:16

○A2a06:98c1:3121::42026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-14 08:47:40
● 2026-07-27 09:33:20
○ 2026-07-27 10:04:36
○ 2026-08-03 06:41:16

○A80.87.131.1152015-08-09 → 2026-04-21 · 4 obs

● 2015-08-09 02:51:26
● 2026-04-21 12:45:48
○ 2026-05-31 23:00:26
○ 2026-08-03 06:41:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
dcscience.net	eric.ns.cloudflare.com, suzanne.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.87

NS records: eric.ns.cloudflare.com, suzanne.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dcscience.net (unsigned zone)

⏱️ Timing

Total: 541ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.87.215, 172.67.147.1`
AAAA	2	`2606:4700:3037::6815:57d7, 2606:4700:3031::ac43:9301`
NS	2	`eric.ns.cloudflare.com, suzanne.ns.cloudflare.com`
MX	2	`_dc-mx.ab06139a64b2.dcscience.net (pri: , mailstore.positive-internet.com (pri: 20`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`eric.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

mail.dcscience.net is delegated beneath dcscience.net.

IP Addresses

dcscience.net directs to four IP numbers, which are 104.21.87.215, 172.67.147.1, 2606:4700:3031::ac43:9301 and 2606:4700:3037::6815:57d7.

xn--22-9kcdglwd0aqeddya6o.xn--p1ai, auto-accessories.cn, anasfoodtacos.com plus two other host names have IP numbers in common with dcscience.net.

Name Servers

dcscience.net has two authoritative name servers — eric.ns.cloudflare.com and suzanne.ns.cloudflare.com.

The name server configuration of dcscience.net is shared with other domains, for instance index-city.com, cosyverde.com, mitutu.cc and two others.

There is at least partial name server overlap between dcscience.net and other domains — k-en.ru, quanyiv.com, misterpoker.co.uk and two more among them.

These name servers frequently co-occur with the name servers ezra.ns.cloudflare.com and steven.ns.cloudflare.com.

Hosts with 6 IP addresses each:

eric.ns.cloudflare.com points to 108.162.193.112, 172.64.33.112, 173.245.59.112 and 3 other IP addresses.

suzanne.ns.cloudflare.com points to 108.162.194.87, 162.159.38.87, 172.64.34.87 and 3 other IP addresses.

Mail Servers

dcscience.net uses two mail servers, mailstore.positive-internet.com and _dc-mx.ab06139a64b2.dcscience.net.

At least some of the mail servers used by dcscience.net are shared with other domains: marvinsuicide.org, forum.divelogs.com, b2it.com and two others among them.

These mail servers often appear in conjunction with the mail servers pop3.positive-internet.com, imap.positive-internet.com, cannonball.positive-internet.com and postino-ext.positive-internet.com.

mailstore.positive-internet.com → 80.87.128.146 and _dc-mx.ab06139a64b2.dcscience.net → 80.87.131.115: one IP number per host name.