sourceflow.de - dns.ninja

`sourceflow.de`

DNSSEC	⚠️ Not signed
A	2a01:4f9:c010:b86::1^{🇫🇮 Hetzner2a01:4f9::/32 HETZNER-IPv6-BLK}
A	65.21.6.53^{🇫🇮 Hetzner65.21.0.0/16 HETZNER-DC}
NS	`hydrogen.ns.hetzner.com` ⭐
		A	2a01:4f8:0:1::add:1098^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`hydrogen.ns.hetzner.com`
		A	213.133.100.98^{🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1}
			PTR	`hydrogen.ns.hetzner.com`
NS	`helium.ns.hetzner.de`
		A	2001:67c:192c::add:5^{🇩🇪 NORIS-NETWORK2001:67c:192c::/48}
			PTR	`helium.ns.hetzner.de`
		A	193.47.99.5^{🇩🇪 NORIS-NETWORK193.47.99.0/24}
			PTR	`helium.ns.hetzner.de`
NS	`oxygen.ns.hetzner.com`
		A	2a01:4f8:0:1::add:2992^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`oxygen.ns.hetzner.com`
		A	88.198.229.192^{🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4}
			PTR	`oxygen.ns.hetzner.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
TXT	`google-site-verification=kYih1hAtsRiuD1pYsDtIrWpLqlyn__ISzAViDSDh-ok`
SOA	`hydrogen.ns.hetzner.com`dns@hetzner.com 2026-02-04 #0

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1781433256

Same first word

sourceflow.de

sourceflow.ch

sourceflow.co

sourceflow.co.uk

sourceflow.us

sourceflow.com

Similar names

courseflow.net

courseflow.org

flowcourse.com

sourcewolf.com

courseflow.com

wolfsource.org

flowsource.co.uk

flowsource.com

wolfsource.com

wolfcourse.com

DNS History

22 records (10 active, 12 former)

●NShelium.ns.hetzner.de2026-04-03 → 2026-06-14 · 3 obs

○ 2019-12-26 16:14:16
● 2026-04-03 10:34:00
● 2026-06-14 10:51:30

●NShydrogen.ns.hetzner.com2026-04-03 → 2026-06-14 · 3 obs

○ 2019-12-26 16:14:16
● 2026-04-03 10:34:00
● 2026-06-14 10:51:30

○NSns1.defunced.de2017-01-17 → 2017-01-17 · 4 obs

○ 2016-05-05 01:13:28
● 2017-01-17 01:47:32
○ 2019-12-26 16:14:16
○ 2026-06-14 10:51:30

○NSns1.digitalocean.com2019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-17 01:47:32
● 2019-12-26 16:14:16
○ 2026-04-03 10:34:00
○ 2026-06-14 10:51:30

○NSns1.medialize.de2015-08-04 → 2016-05-05 · 4 obs

● 2015-08-04 00:24:22
● 2016-05-05 01:13:28
○ 2017-01-17 01:47:32
○ 2026-06-14 10:51:30

○NSns2.defunced.de2017-01-17 → 2017-01-17 · 4 obs

○ 2016-05-05 01:13:28
● 2017-01-17 01:47:32
○ 2019-12-26 16:14:16
○ 2026-06-14 10:51:30

○NSns2.digitalocean.com2019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-17 01:47:32
● 2019-12-26 16:14:16
○ 2026-04-03 10:34:00
○ 2026-06-14 10:51:30

○NSns2.medialize.de2015-08-04 → 2016-05-05 · 4 obs

● 2015-08-04 00:24:22
● 2016-05-05 01:13:28
○ 2017-01-17 01:47:32
○ 2026-06-14 10:51:30

○NSns3.digitalocean.com2019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-17 01:47:32
● 2019-12-26 16:14:16
○ 2026-04-03 10:34:00
○ 2026-06-14 10:51:30

●NSoxygen.ns.hetzner.com2026-04-03 → 2026-06-14 · 3 obs

○ 2019-12-26 16:14:16
● 2026-04-03 10:34:00
● 2026-06-14 10:51:30

●MXalt1.aspmx.l.google.com2016-05-05 → 2026-06-14 · 3 obs

○ 2015-08-04 00:24:22
● 2016-05-05 01:13:28
● 2026-06-14 10:51:30

●MXalt2.aspmx.l.google.com2016-05-05 → 2026-06-14 · 3 obs

○ 2015-08-04 00:24:22
● 2016-05-05 01:13:28
● 2026-06-14 10:51:30

●MXalt3.aspmx.l.google.com2016-05-05 → 2026-06-14 · 3 obs

○ 2015-08-04 00:24:22
● 2016-05-05 01:13:28
● 2026-06-14 10:51:30

●MXalt4.aspmx.l.google.com2016-05-05 → 2026-06-14 · 3 obs

○ 2015-08-04 00:24:22
● 2016-05-05 01:13:28
● 2026-06-14 10:51:30

●MXaspmx.l.google.com2016-05-05 → 2026-06-14 · 3 obs

○ 2015-08-04 00:24:22
● 2016-05-05 01:13:28
● 2026-06-14 10:51:30

○MXnewton.termitel.de2015-08-04 → 2017-01-17 · 4 obs

● 2015-08-04 00:24:22
● 2017-01-17 01:47:32
○ 2019-12-26 16:14:16
○ 2026-06-14 10:51:30

○A213.146.254.1062015-11-21 → 2015-11-21 · 4 obs

○ 2015-08-04 00:24:22
● 2015-11-21 11:30:58
○ 2016-02-24 18:57:54
○ 2026-06-14 10:51:30

●A2a01:4f9:c010:b86::12026-04-03 → 2026-06-14 · 3 obs

○ 2019-12-26 16:14:16
● 2026-04-03 10:34:00
● 2026-06-14 10:51:30

○A2a03:b0c0:3:d0::3154:30012019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-17 01:47:32
● 2019-12-26 16:14:16
○ 2026-04-03 10:34:00
○ 2026-06-14 10:51:30

○A46.101.101.932019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-17 01:47:32
● 2019-12-26 16:14:16
○ 2026-04-03 10:34:00
○ 2026-06-14 10:51:30

●A65.21.6.532026-04-03 → 2026-06-14 · 3 obs

○ 2019-12-26 16:14:16
● 2026-04-03 10:34:00
● 2026-06-14 10:51:30

○A93.189.153.102015-08-04 → 2017-01-17 · 6 obs

● 2015-08-04 00:24:22
○ 2015-11-21 11:30:58
● 2016-02-24 18:57:54
● 2017-01-17 01:47:32
○ 2019-12-26 16:14:16
○ 2026-06-14 10:51:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	z.nic.de, a.nic.de, f.nic.de	-
sourceflow.de	helium.ns.hetzner.de, oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com	-

✅ Authoritative Response

Server:213.133.100.98

NS records: helium.ns.hetzner.de, oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sourceflow.de (unsigned zone)

⏱️ Timing

Total: 2215ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`65.21.6.53`
AAAA	1	`2a01:4f9:c010:b86::1`
NS	3	`helium.ns.hetzner.de, hydrogen.ns.hetzner.com...`
MX	5	`alt4.aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 5)...`
TXT	2	`v=spf1 include:_spf.google.com ~all, google-site-verification=kYih1hAtsRiuD1p`
SOA	1	`hydrogen.ns.hetzner.com dns.hetzner.com`

Analysis

IP Addresses

sourceflow.de points to the IP addresses 65.21.6.53 and 2a01:4f9:c010:b86::1

Further host names like static.53.6.21.65.clients.your-server.de and sourceflow.ch overlap in IP numbers with sourceflow.de.

Name Servers

sourceflow.de is delegated to three name servers: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.

There is at least partial name server overlap between sourceflow.de and other domains — coreser.net, knve.net, iliksoft.com and two more among them.

These name servers tend to appear in combination with the name servers ns1.first-ns.de, ns1.your-server.de, robotns3.second-ns.com and robotns2.second-ns.de.

hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de each resolve to two IP addresses: hydrogen.ns.hetzner.com resolves to 213.133.100.98 and 2a01:4f8:0:1::add:1098; oxygen.ns.hetzner.com resolves to 88.198.229.192 and 2a01:4f8:0:1::add:2992; helium.ns.hetzner.de resolves to 193.47.99.5 and 2001:67c:192c::add:5.

Mail Servers

sourceflow.de has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

sourceflow.de shares mail servers — at least in part — with other domains, including villageoflakeview.org.cdn.cloudflare.net, cashmere.org, aprosojabrasil.com.br and two others.

These mail servers are frequently used alongside mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other.

Host names with two IP numbers:

aspmx.l.google.com points to 192.178.155.27 and 2607:f8b0:4004:c1d::1a.

alt1.aspmx.l.google.com points to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com points to 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com points to 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com points to 172.253.157.26 and 2a00:1450:400c:c23::1b.