`opensfs.org`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3030::6815:bce^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:c0a1^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.11.206^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.192.161^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`rachel.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ad7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rachel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rachel.ns.cloudflare.com`
		A	108.162.192.215^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	172.64.32.215^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	173.245.58.215^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
NS	`rory.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rory.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rory.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rory.ns.cloudflare.com`
		A	108.162.195.166^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rory.ns.cloudflare.com`
		A	162.159.44.166^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rory.ns.cloudflare.com`
		A	172.64.35.166^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rory.ns.cloudflare.com`
MX	`mx1.mailchannels.net` ⭐
		A	52.38.143.159^{🇺🇸 Amazon52.36.0.0/14 EC2 PDX prefix}
			PTR	`ec2-52-38-143-159.us-west-2.compute.amazonaws.com`
MX	`mx2.mailchannels.net` ⭐
		A	52.38.143.159^{🇺🇸 Amazon52.36.0.0/14 EC2 PDX prefix}
			PTR	`ec2-52-38-143-159.us-west-2.compute.amazonaws.com`
TXT	`google-site-verification=TJt5Jme93ipWmKztxY78qfTKuMt2ImnoquO_mwUW0zc`
TXT	`v=spf1 mx a ip4:50.76.103.53 ip4:50.201.23.206 ip4:50.201.25.89 ip4:69.160.44...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.11.206, 172.67.192.161
		IPv6	2606:4700:3030::6815:bce, 2606:4700:3032::ac43:c0a1
SOA	`rachel.ns.cloudflare.com`dns@cloudflare.com serial=2398921918

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1774472680

WOT: SAFE (61/100)

Same first word

opensfs.org

Similar names

openssf.org

openfss.net

openfss.nl

DNS History

20 records (8 active, 12 former)

○NSns1.dreamhost.com2015-08-01 → 2018-12-01 · 4 obs

● 2015-08-01 09:00:48
● 2018-12-01 03:53:18
○ 2026-02-19 08:05:10
○ 2026-03-25 21:16:46

○NSns2.dreamhost.com2015-08-01 → 2018-12-01 · 4 obs

● 2015-08-01 09:00:48
● 2018-12-01 03:53:18
○ 2026-02-19 08:05:10
○ 2026-03-25 21:16:46

○NSns3.dreamhost.com2015-08-01 → 2018-12-01 · 4 obs

● 2015-08-01 09:00:48
● 2018-12-01 03:53:18
○ 2026-02-19 08:05:10
○ 2026-03-25 21:16:46

●NSrachel.ns.cloudflare.com2026-02-19 → 2026-03-25 · 3 obs

○ 2018-12-01 03:53:18
● 2026-02-19 08:05:10
● 2026-03-25 21:16:46

●NSrory.ns.cloudflare.com2026-02-19 → 2026-03-25 · 3 obs

○ 2018-12-01 03:53:18
● 2026-02-19 08:05:10
● 2026-03-25 21:16:46

●MXmx1.mailchannels.net2026-02-19 → 2026-03-25 · 3 obs

○ 2018-12-01 03:53:18
● 2026-02-19 08:05:10
● 2026-03-25 21:16:46

○MXmx1.sub4.homie.mail.dreamhost.com2015-08-01 → 2017-02-18 · 4 obs

● 2015-08-01 09:00:48
● 2017-02-18 02:05:22
○ 2018-12-01 03:53:18
○ 2026-03-25 21:16:46

●MXmx2.mailchannels.net2026-02-19 → 2026-03-25 · 3 obs

○ 2018-12-01 03:53:18
● 2026-02-19 08:05:10
● 2026-03-25 21:16:46

○MXmx2.sub4.homie.mail.dreamhost.com2015-08-01 → 2017-02-18 · 4 obs

● 2015-08-01 09:00:48
● 2017-02-18 02:05:22
○ 2018-12-01 03:53:18
○ 2026-03-25 21:16:46

○MXvade-in1.mail.dreamhost.com2018-12-01 → 2018-12-01 · 4 obs

○ 2017-02-18 02:05:22
● 2018-12-01 03:53:18
○ 2026-02-19 08:05:10
○ 2026-03-25 21:16:46

○MXvade-in2.mail.dreamhost.com2018-12-01 → 2018-12-01 · 4 obs

○ 2017-02-18 02:05:22
● 2018-12-01 03:53:18
○ 2026-02-19 08:05:10
○ 2026-03-25 21:16:46

○A104.154.61.1062017-02-18 → 2018-12-01 · 5 obs

○ 2016-07-12 05:26:12
● 2017-02-18 02:05:22
● 2018-12-01 03:53:18
○ 2026-02-19 08:05:10
○ 2026-03-25 21:16:46

●A104.21.11.2062026-02-19 → 2026-03-25 · 6 obs

○ 2018-12-01 03:53:18
● 2026-02-19 08:05:10
● 2026-03-05 08:59:30
○ 2026-03-07 00:59:12
● 2026-03-22 19:35:36
● 2026-03-25 21:16:46

○A162.216.19.1052015-08-01 → 2016-07-12 · 4 obs

● 2015-08-01 09:00:48
● 2016-07-12 05:26:12
○ 2017-02-18 02:05:22
○ 2026-03-25 21:16:46

●A172.67.192.1612026-02-19 → 2026-03-25 · 6 obs

○ 2018-12-01 03:53:18
● 2026-02-19 08:05:10
● 2026-03-05 08:59:30
○ 2026-03-07 00:59:12
● 2026-03-22 19:35:36
● 2026-03-25 21:16:46

○A188.114.96.02026-03-07 → 2026-03-07 · 4 obs

○ 2026-03-05 08:59:30
● 2026-03-07 00:59:12
○ 2026-03-22 19:35:36
○ 2026-03-25 21:16:46

○A188.114.97.02026-03-07 → 2026-03-07 · 4 obs

○ 2026-03-05 08:59:30
● 2026-03-07 00:59:12
○ 2026-03-22 19:35:36
○ 2026-03-25 21:16:46

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-23 → 2026-03-23 · 3 obs

○ 2026-03-22 19:35:36
● 2026-03-23 01:19:10
○ 2026-03-25 21:16:46

●A2606:4700:3030::6815:bce2026-02-19 → 2026-03-25 · 5 obs

○ 2018-12-01 03:53:18
● 2026-02-19 08:05:10
● 2026-03-22 19:35:36
○ 2026-03-23 01:19:10
● 2026-03-25 21:16:46

●A2606:4700:3032::ac43:c0a12026-02-19 → 2026-03-25 · 5 obs

○ 2018-12-01 03:53:18
● 2026-02-19 08:05:10
● 2026-03-22 19:35:36
○ 2026-03-23 01:19:10
● 2026-03-25 21:16:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
opensfs.org	rory.ns.cloudflare.com, rachel.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.166

NS records: rory.ns.cloudflare.com, rachel.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 387ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.11.206, 172.67.192.161`
AAAA	2	`2606:4700:3032::ac43:c0a1, 2606:4700:3030::6815:bce`
NS	2	`rachel.ns.cloudflare.com, rory.ns.cloudflare.com`
MX	2	`mx1.mailchannels.net (pri: 0), mx2.mailchannels.net (pri: 0)`
TXT	2	`google-site-verification=TJt5Jme93ipWmKz, v=spf1 mx a ip4:50.76.103.53 ip4:50.201.`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`rachel.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

opensfs.org maps to four IP numbers: 2606:4700:3030::6815:bce, 2606:4700:3032::ac43:c0a1, 104.21.11.206 and 172.67.192.161.

Other host names, for instance www.teplocom-holding.ru, informationpalace.com, mandyadiocese.org, dgbaiyou.com and pambucy.com share IP numbers with opensfs.org.

Name Servers

Two name servers rachel.ns.cloudflare.com and rory.ns.cloudflare.com handle delegation for opensfs.org.

opensfs.org uses the same name server setup as other domains, for example chaukas.in, lustre.org, valonadental.com, wnial.com and ed-ucation.ca.

opensfs.org partially shares name servers with other domains; examples include guidagiochi.it, gamezingzone.com, tma-uk.org, moderncenter.us and nrbush.com.

These name servers are often used with the name servers kate.ns.cloudflare.com and paige.ns.cloudflare.com.

Host names with six IP numbers: rachel.ns.cloudflare.com points to: 2606:4700:50::adf5:3ad7, 2803:f800:50::6ca2:c0d7, 2a06:98c1:50::ac40:20d7, 108.162.192.215, 172.64.32.215 and 173.245.58.215; rory.ns.cloudflare.com points to: 2606:4700:58::a29f:2ca6, 2803:f800:50::6ca2:c3a6, 2a06:98c1:50::ac40:23a6, 108.162.195.166, 162.159.44.166 and 172.64.35.166.

Mail Servers

opensfs.org is handled by two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.

opensfs.org has the same mail server setup as other domains, including mail.dissenycullera.com, roofworks.ca, iamherb.com, mydamndomain.com and josh.run.

opensfs.org shares some mail servers with other domains, at least partially, such as cm-vouzela.pt, cy-tube.com.tw, casinositeshelper.com, oresundscharter.se and teacherhack.com.

Host names with one IP number

Host name mx1.mailchannels.net points to 52.38.143.159

Host name mx2.mailchannels.net points to 52.38.143.159

Host names that point to 52.38.143.159: mx1.mailchannels.net and mx2.mailchannels.net

opensfs.org - robtex.com

opensfs.org

org

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`opensfs.org`

`org`