🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`blockstream.org`

DNSSEC	⚠️ Not signed
A	51.210.8.151^{🇫🇷 OVH51.210.0.0/16}
		PTR	`mail.alternic.com`
NS	`dns1.registrar-servers.com` ⭐
		A	2610:a1:1024::200^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
		A	156.154.132.200^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
NS	`dns2.registrar-servers.com`
		A	2610:a1:1025::200^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
		A	156.154.133.200^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`afdc4832-a2da-415e-b4bc-b20786b65470`
TXT	`088ba7a1f96dbcf357557d3c1d703751b160fb16`
TXT	`3a8d30fb57f95b882a183ada361738032b841ed6`
TXT	`afternic-verification-XVWTUqHXjywHsWRGiZ9Gys`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1785540431

`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=1787406916

Same first word

Similar names

Previous names

Next names

DNS History

13 records (8 active, 5 former)

●NSdns1.registrar-servers.com2026-08-19 → 2026-08-22 · 3 obs

○ 2018-08-25 06:01:54
● 2026-08-19 14:26:44
● 2026-08-22 14:18:42

●NSdns2.registrar-servers.com2026-08-19 → 2026-08-22 · 3 obs

○ 2018-08-25 06:01:54
● 2026-08-19 14:26:44
● 2026-08-22 14:18:42

○NSns43.domaincontrol.com2015-06-25 → 2018-08-25 · 4 obs

● 2015-06-25 05:24:08
● 2018-08-25 06:01:54
○ 2026-08-19 14:26:44
○ 2026-08-22 14:18:42

○NSns44.domaincontrol.com2015-06-25 → 2018-08-25 · 4 obs

● 2015-06-25 05:24:08
● 2018-08-25 06:01:54
○ 2026-08-19 14:26:44
○ 2026-08-22 14:18:42

●MXeforward1.registrar-servers.com2026-08-19 → 2026-08-22 · 3 obs

○ 2018-08-25 06:01:54
● 2026-08-19 14:26:44
● 2026-08-22 14:18:42

●MXeforward2.registrar-servers.com2026-08-19 → 2026-08-22 · 3 obs

○ 2018-08-25 06:01:54
● 2026-08-19 14:26:44
● 2026-08-22 14:18:42

●MXeforward3.registrar-servers.com2026-08-19 → 2026-08-22 · 3 obs

○ 2018-08-25 06:01:54
● 2026-08-19 14:26:44
● 2026-08-22 14:18:42

●MXeforward4.registrar-servers.com2026-08-19 → 2026-08-22 · 3 obs

○ 2018-08-25 06:01:54
● 2026-08-19 14:26:44
● 2026-08-22 14:18:42

●MXeforward5.registrar-servers.com2026-08-19 → 2026-08-22 · 3 obs

○ 2018-08-25 06:01:54
● 2026-08-19 14:26:44
● 2026-08-22 14:18:42

○MXmailstore1.secureserver.net2015-06-25 → 2018-08-25 · 4 obs

● 2015-06-25 05:24:08
● 2018-08-25 06:01:54
○ 2026-08-19 14:26:44
○ 2026-08-22 14:18:42

○MXsmtp.secureserver.net2015-06-25 → 2018-08-25 · 4 obs

● 2015-06-25 05:24:08
● 2018-08-25 06:01:54
○ 2026-08-19 14:26:44
○ 2026-08-22 14:18:42

○A184.168.221.372015-06-25 → 2018-08-25 · 4 obs

● 2015-06-25 05:24:08
● 2018-08-25 06:01:54
○ 2026-08-19 14:26:44
○ 2026-08-22 14:18:42

●A51.210.8.1512026-08-19 → 2026-08-22 · 3 obs

○ 2018-08-25 06:01:54
● 2026-08-19 14:26:44
● 2026-08-22 14:18:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
blockstream.org	dns2.registrar-servers.com, dns1.registrar-servers.com	-

✅ Authoritative Response

Server:156.154.133.200

NS records: dns2.registrar-servers.com, dns1.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for blockstream.org (unsigned zone)

⏱️ Timing

Total: 1158ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`51.210.8.151`
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	5	`afdc4832-a2da-415e-b4bc-b20786b65470, 088ba7a1f96dbcf357557d3c1d703751b160fb16...`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

Analysis

IP Addresses

blockstream.org points to a single IP number: 51.210.8.151.

Additional host names — demeures-de-charme.fr, realassets.eu, sos-medecins.fr and two others — share IP numbers with blockstream.org.

Name Servers

The NS records for blockstream.org delegate to dns1.registrar-servers.com and dns2.registrar-servers.com.

blockstream.org shares its name server setup with other domains, including speedmasters24.de, daymail.io, underconcreteslabinsulation.com and two others.

At least some of blockstream.org's name servers are shared with other domains, for example milson.guru, dittc.ca, lankasri.us and two more.

It is common for these name servers to be used in conjunction with the name servers dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.

dns1.registrar-servers.com resolves to 156.154.132.200 and 2610:a1:1024::200. Likewise, dns2.registrar-servers.com resolves to 156.154.133.200 and 2610:a1:1025::200 — two IP addresses apiece.

Mail Servers

Five mail servers handle blockstream.org: eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.

blockstream.org shares mail servers — at least in part — with other domains, including henrylove.co, bananachips.club, blackburn.college and two others.

These mail servers are frequently paired with the mail servers eforward4.registrar-servers.com, eforward5.registrar-servers.com, eforward6.registrar-servers.com and eforward7.registrar-servers.com.

Host names pointing to a single IP address:

eforward1.registrar-servers.com resolves to the IP address 162.255.118.51.

eforward2.registrar-servers.com resolves to the IP address 162.255.118.52.

eforward3.registrar-servers.com resolves to the IP address 162.255.118.51.

eforward4.registrar-servers.com resolves to the IP address 162.255.118.52.

eforward5.registrar-servers.com resolves to the IP address 162.255.118.51.

eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com are host names that all point to 162.255.118.51.

eforward2.registrar-servers.com and eforward4.registrar-servers.com each have 162.255.118.52 IP addresses.