`heldref.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:20c3^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:9a70^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.32.195^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.154.112^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bart.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b47^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c147^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bart.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2147^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bart.ns.cloudflare.com`
		A	108.162.193.71^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	172.64.33.71^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	173.245.59.71^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
NS	`hera.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hera.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hera.ns.cloudflare.com`
		A	108.162.192.162^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
		A	172.64.32.162^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
		A	173.245.58.162^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
MX	`heldref.org.inbound10.mxlogic.net` ⭐
MX	`heldref.org.inbound10.mxlogicmx.net` ⭐
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.32.195, 172.67.154.112
		IPv6 hints	2606:4700:3034::6815:20c3, 2606:4700:3034::ac43:9a70
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=193, name=cloudflare-ech.com
SOA	`bart.ns.cloudflare.com`dns@cloudflare.com serial=2409848301

`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=1784709756

rank #943818 globally
rank #71946 in the tld

Subdomains

exchange.heldref.org

Same first word

heldref.org

Similar names

rehfeld.us

herfeld.com

rehfeld.name

ehrfeld.com

rehfeld.dk

DNS History

26 records (8 active, 18 former)

●NSbart.ns.cloudflare.com2026-02-19 → 2026-07-22 · 3 obs

○ 2020-03-13 19:07:50
● 2026-02-19 18:49:46
● 2026-07-22 08:51:16

○NSdns1.idp365.net2015-05-10 → 2020-03-13 · 5 obs

○ 2007-12-05 11:52:30
● 2015-05-10 21:12:34
● 2020-03-13 19:07:50
○ 2026-02-19 18:49:46
○ 2026-07-22 08:51:16

○NSdns2.idp365.net2015-05-10 → 2020-03-13 · 5 obs

○ 2007-12-05 11:52:30
● 2015-05-10 21:12:34
● 2020-03-13 19:07:50
○ 2026-02-19 18:49:46
○ 2026-07-22 08:51:16

○NSdns3.idp365.net2015-05-10 → 2020-03-13 · 5 obs

○ 2007-12-05 11:52:30
● 2015-05-10 21:12:34
● 2020-03-13 19:07:50
○ 2026-02-19 18:49:46
○ 2026-07-22 08:51:16

●NShera.ns.cloudflare.com2026-02-19 → 2026-07-22 · 3 obs

○ 2020-03-13 19:07:50
● 2026-02-19 18:49:46
● 2026-07-22 08:51:16

○NSns.pacific-coast.com2007-12-05 → 2007-12-05 · 3 obs

● 2007-12-05 11:52:30
○ 2015-05-10 21:12:34
○ 2026-07-22 08:51:16

○NSns2.pacific-coast.com2007-12-05 → 2007-12-05 · 3 obs

● 2007-12-05 11:52:30
○ 2015-05-10 21:12:34
○ 2026-07-22 08:51:16

●MXheldref.org.inbound10.mxlogic.net2007-12-05 → 2026-07-22 · 2 obs

● 2007-12-05 11:52:30
● 2026-07-22 08:51:16

●MXheldref.org.inbound10.mxlogicmx.net2007-12-05 → 2026-07-22 · 2 obs

● 2007-12-05 11:52:30
● 2026-07-22 08:51:16

○MXheldref.org.inbound20.mxlogic.net2007-12-05 → 2007-12-05 · 3 obs

● 2007-12-05 11:52:30
○ 2015-05-10 21:12:34
○ 2026-07-22 08:51:16

○MXheldref.org.inbound20.mxlogicmx.net2007-12-05 → 2007-12-05 · 3 obs

● 2007-12-05 11:52:30
○ 2015-05-10 21:12:34
○ 2026-07-22 08:51:16

○MXheldref.org.inbound30.mxlogic.net2007-12-05 → 2007-12-05 · 3 obs

● 2007-12-05 11:52:30
○ 2015-05-10 21:12:34
○ 2026-07-22 08:51:16

○MXheldref.org.inbound30.mxlogicmx.net2007-12-05 → 2007-12-05 · 3 obs

● 2007-12-05 11:52:30
○ 2015-05-10 21:12:34
○ 2026-07-22 08:51:16

●A104.21.32.1952026-02-19 → 2026-07-22 · 8 obs

○ 2020-03-13 19:07:50
● 2026-02-19 18:49:46
● 2026-03-02 23:00:44
○ 2026-03-03 10:04:28
● 2026-03-19 14:48:02
○ 2026-03-29 14:28:30
● 2026-05-29 17:27:24
● 2026-07-22 08:51:16

●A172.67.154.1122026-02-19 → 2026-07-22 · 8 obs

○ 2020-03-13 19:07:50
● 2026-02-19 18:49:46
● 2026-03-02 23:00:44
○ 2026-03-03 10:04:28
● 2026-03-19 14:48:02
○ 2026-03-29 14:28:30
● 2026-05-29 17:27:24
● 2026-07-22 08:51:16

○A188.114.96.02026-03-03 → 2026-03-29 · 7 obs

○ 2026-02-19 18:49:46
○ 2026-03-02 23:00:44
● 2026-03-03 10:04:28
○ 2026-03-19 14:48:02
● 2026-03-29 14:28:30
○ 2026-05-29 17:27:24
○ 2026-07-22 08:51:16

○A188.114.97.02026-03-03 → 2026-03-29 · 7 obs

○ 2026-02-19 18:49:46
○ 2026-03-02 23:00:44
● 2026-03-03 10:04:28
○ 2026-03-19 14:48:02
● 2026-03-29 14:28:30
○ 2026-05-29 17:27:24
○ 2026-07-22 08:51:16

○A207.67.226.182007-12-05 → 2007-12-05 · 3 obs

● 2007-12-05 11:52:30
○ 2015-05-10 21:12:34
○ 2026-07-22 08:51:16

○A216.230.103.262015-05-10 → 2017-03-27 · 5 obs

○ 2007-12-05 11:52:30
● 2015-05-10 21:12:34
● 2017-03-27 17:07:56
○ 2020-03-13 19:07:50
○ 2026-07-22 08:51:16

○A217.19.248.1322020-03-13 → 2020-03-13 · 4 obs

○ 2017-03-27 17:07:56
● 2020-03-13 19:07:50
○ 2026-02-19 18:49:46
○ 2026-07-22 08:51:16

○A2606:4700:3030::ac43:9a702026-02-19 → 2026-06-17 · 10 obs

○ 2020-03-13 19:07:50
● 2026-02-19 18:49:46
● 2026-03-02 23:00:44
○ 2026-03-03 10:04:28
● 2026-03-19 14:48:02
○ 2026-03-29 14:28:30
● 2026-05-29 17:27:24
● 2026-06-17 06:27:22
○ 2026-06-28 12:59:58
○ 2026-07-22 08:51:16

○A2606:4700:3033::6815:20c32026-02-19 → 2026-06-17 · 10 obs

●A2606:4700:3034::6815:20c32026-06-28 → 2026-07-22 · 3 obs

○ 2026-06-17 06:27:22
● 2026-06-28 12:59:58
● 2026-07-22 08:51:16

●A2606:4700:3034::ac43:9a702026-06-28 → 2026-07-22 · 3 obs

○ 2026-06-17 06:27:22
● 2026-06-28 12:59:58
● 2026-07-22 08:51:16

○A2a06:98c1:3120::2026-03-03 → 2026-03-29 · 7 obs

○ 2026-02-19 18:49:46
○ 2026-03-02 23:00:44
● 2026-03-03 10:04:28
○ 2026-03-19 14:48:02
● 2026-03-29 14:28:30
○ 2026-05-29 17:27:24
○ 2026-07-22 08:51:16

○A2a06:98c1:3121::2026-03-03 → 2026-03-29 · 7 obs

○ 2026-02-19 18:49:46
○ 2026-03-02 23:00:44
● 2026-03-03 10:04:28
○ 2026-03-19 14:48:02
● 2026-03-29 14:28:30
○ 2026-05-29 17:27:24
○ 2026-07-22 08:51:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
heldref.org	bart.ns.cloudflare.com, hera.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.71

NS records: bart.ns.cloudflare.com, hera.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for heldref.org (unsigned zone)

⏱️ Timing

Total: 588ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.154.112, 104.21.32.195`
AAAA	2	`2606:4700:3034::6815:20c3, 2606:4700:3034::ac43:9a70`
NS	2	`bart.ns.cloudflare.com, hera.ns.cloudflare.com`
MX	2	`heldref.org.inbound10.mxlogic.net (pri: , heldref.org.inbound10.mxlogicmx.net (pri`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bart.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

exchange.heldref.org is a subdomain of heldref.org.

IP Addresses

heldref.org points to the four IP addresses 104.21.32.195, 172.67.154.112, 2606:4700:3034::6815:20c3 and 2606:4700:3034::ac43:9a70.

visionfuture.uk, www.cnchaoxu.com, academiadeestudo.com.br and two other host names share IP numbers with heldref.org.

Name Servers

heldref.org is served by two delegated name servers, bart.ns.cloudflare.com and hera.ns.cloudflare.com.

heldref.org uses the same name servers as several other domains — among them pentoninteractive.com, financenetwork.com, datacentervideos.com and two more.

The name servers of heldref.org overlap at least partially with those of other domains — among them dais.cc, newcsome.com, thepounddropper.com and two more.

Hostnames that resolve to 6 IP addresses:

bart.ns.cloudflare.com carries IP addresses 108.162.193.71, 172.64.33.71 and 173.245.59.71, with 3 other addresses beyond those.

hera.ns.cloudflare.com carries IP addresses 108.162.192.162, 172.64.32.162 and 173.245.58.162, with 3 other addresses beyond those.

Mail Servers

Mail for heldref.org is handled by two mail servers — heldref.org.inbound10.mxlogic.net and heldref.org.inbound10.mxlogicmx.net.

heldref.org - robtex.com

heldref.org

org

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`heldref.org`

`org`