learning-by-doing.se - robtex.com

learning-by-doing.se

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:38b2🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:9b02🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.56.178Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.155.2🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScora.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26c3🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcora.ns.cloudflare.com
A2803:f800:50::6ca2:c2c3🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcora.ns.cloudflare.com
A2a06:98c1:50::ac40:22c3🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcora.ns.cloudflare.com
A108.162.194.195🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcora.ns.cloudflare.com
A162.159.38.195Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcora.ns.cloudflare.com
A172.64.34.195🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcora.ns.cloudflare.com
NSsean.ns.cloudflare.com
A2606:4700:58::adf5:3be7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
A2803:f800:50::6ca2:c1e7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsean.ns.cloudflare.com
A2a06:98c1:50::ac40:21e7🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsean.ns.cloudflare.com
A108.162.193.231🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
A172.64.33.231🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
A173.245.59.231🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.56.178, 172.67.155.2
IPv6 hints2606:4700:3031::6815:38b2, 2606:4700:3034::ac43:9b02
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=222, name=cloudflare-ech.com
SOAcora.ns.cloudflare.comdns@cloudflare.com serial=2406376276

se

DNSSEC🔒 Signed (DS record present)
NScatcher-in-the-rye.nic.se ⭐
NSa.ns.se
NSb.ns.se
NSc.ns.se
NSf.ns.se
NSg.ns.se
NSi.ns.se
NSm.ns.se
NSx.ns.se
NSy.ns.se
NSz.ns.se
TXTSE zone update: 2026-07-13 07:02:32 +0000 (EPOCH 1783926152) (auto)
TXTid:aa3ee420-31b1-458a-b244-387a6f112160
SOAcatcher-in-the-rye.nic.seregistry-default@nic.se serial=1783926552
WOT: SAFE (61/100)

Same first word

learning-by-doing.se

DNS History

15 records (6 active, 9 former)

20162017201820192020202120222023202420252026NScora.ns.cloudflare.comsean.ns.cloudflare.comdns01.dipcon.comdns02.ports.sedns03.ports.sedns04.ports.netns1.loopia.sens2.loopia.seA104.21.56.178172.67.155.22606:4700:3031::6815:38b22606:4700:3034::ac43:9b02192.71.86.2202606:4700:3033::ac43:9b022606:4700:3037::6815:38b2
●NScora.ns.cloudflare.com2026-06-09 → 2026-07-13 · 3 obs
○ 2017-05-22 00:28:56
● 2026-06-09 14:18:14
● 2026-07-13 08:14:28
○NSdns01.dipcon.com2026-06-09 → 2026-07-13 · 2 obs
○ 2026-06-09 14:18:14
○ 2026-07-13 08:14:28
○NSdns02.ports.se2026-06-09 → 2026-07-13 · 2 obs
○ 2026-06-09 14:18:14
○ 2026-07-13 08:14:28
○NSdns03.ports.se2026-06-09 → 2026-07-13 · 2 obs
○ 2026-06-09 14:18:14
○ 2026-07-13 08:14:28
○NSdns04.ports.net2026-06-09 → 2026-07-13 · 2 obs
○ 2026-06-09 14:18:14
○ 2026-07-13 08:14:28
○NSns1.loopia.se2015-08-21 → 2017-05-22 · 4 obs
● 2015-08-21 17:18:16
● 2017-05-22 00:28:56
○ 2026-06-09 14:18:14
○ 2026-07-13 08:14:28
○NSns2.loopia.se2015-08-21 → 2017-05-22 · 4 obs
● 2015-08-21 17:18:16
● 2017-05-22 00:28:56
○ 2026-06-09 14:18:14
○ 2026-07-13 08:14:28
●NSsean.ns.cloudflare.com2026-06-09 → 2026-07-13 · 3 obs
○ 2017-05-22 00:28:56
● 2026-06-09 14:18:14
● 2026-07-13 08:14:28
●A104.21.56.1782026-06-09 → 2026-07-13 · 3 obs
○ 2017-05-22 00:28:56
● 2026-06-09 14:18:14
● 2026-07-13 08:14:28
●A172.67.155.22026-06-09 → 2026-07-13 · 3 obs
○ 2017-05-22 00:28:56
● 2026-06-09 14:18:14
● 2026-07-13 08:14:28
○A192.71.86.2202015-08-21 → 2017-05-22 · 4 obs
● 2015-08-21 17:18:16
● 2017-05-22 00:28:56
○ 2026-06-09 14:18:14
○ 2026-07-13 08:14:28
●A2606:4700:3031::6815:38b22026-07-13 → 2026-07-13 · 2 obs
○ 2026-06-14 21:38:02
● 2026-07-13 08:14:28
○A2606:4700:3033::ac43:9b022026-06-09 → 2026-06-14 · 4 obs
○ 2017-05-22 00:28:56
● 2026-06-09 14:18:14
● 2026-06-14 21:38:02
○ 2026-07-13 08:14:28
●A2606:4700:3034::ac43:9b022026-07-13 → 2026-07-13 · 2 obs
○ 2026-06-14 21:38:02
● 2026-07-13 08:14:28
○A2606:4700:3037::6815:38b22026-06-09 → 2026-06-14 · 4 obs
○ 2017-05-22 00:28:56
● 2026-06-09 14:18:14
● 2026-06-14 21:38:02
○ 2026-07-13 08:14:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sey.ns.se, x.ns.se, m.ns.se, g.ns.se...-
learning-by-doing.secora.ns.cloudflare.com, sean.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.195

NS records: cora.ns.cloudflare.com, sean.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for learning-by-doing.se (unsigned zone)

⏱️ Timing

Total: 557ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.56.178, 172.67.155.2
AAAA22606:4700:3031::6815:38b2, 2606:4700:3034::ac43:9b02
NS2cora.ns.cloudflare.com, sean.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1cora.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

learning-by-doing.se directs to four IP numbers, which are 104.21.56.178, 172.67.155.2, 2606:4700:3031::6815:38b2 and 2606:4700:3034::ac43:9b02.

Two other host names, along with lpz123.com, 45de49bb.6e1be141c773098c2be05d84.workers.dev and claim-falcon.com, also share IP numbers with learning-by-doing.se.

Name Servers

DNS delegation for learning-by-doing.se points to two name servers: cora.ns.cloudflare.com and sean.ns.cloudflare.com.

learning-by-doing.se shares its NS records with other domains, for example madsosveen.no, razart.se, ingessontillvm2010.nu and two others.

The name servers of learning-by-doing.se overlap at least partially with those of other domains — among them technowar.hu, sagretreviso.it, soulwindowstattoo.com and two more.

The name servers luciana.ns.cloudflare.com, kyrie.ns.cloudflare.com and nile.ns.cloudflare.com are commonly seen alongside these name servers.

DNS names with 6 IP addresses:

cora.ns.cloudflare.com has IP addresses 108.162.194.195, 162.159.38.195 and 172.64.34.195, plus 3 other.

sean.ns.cloudflare.com has IP addresses 108.162.193.231, 172.64.33.231 and 173.245.59.231, plus 3 other.