studocu.se - robtex.com

studocu.se

DNSSEC⚠️ Not signed
A54.211.32.156🇺🇸 Amazon54.211.0.0/16 EC2 IAD prefix
PTRec2-54-211-32-156.compute-1.amazonaws.com
A98.80.38.59🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix
A100.59.142.63🇺🇸 Amazon100.48.0.0/12 EC2 IAD prefix
NSns-561.awsdns-06.net ⭐
A2600:9000:5302:3100::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-561.awsdns-06.net
A205.251.194.49🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-561.awsdns-06.net
NSns-1365.awsdns-42.org
A2600:9000:5305:5500::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1365.awsdns-42.org
A205.251.197.85🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1365.awsdns-42.org
NSns-1724.awsdns-23.co.uk
A2600:9000:5306:bc00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront
PTRns-1724.awsdns-23.co.uk
A205.251.198.188🇺🇸 Amazon205.251.198.0/24 prefix
PTRns-1724.awsdns-23.co.uk
NSns-353.awsdns-44.com
A2600:9000:5301:6100::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-353.awsdns-44.com
A205.251.193.97🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-353.awsdns-44.com
SOAns-561.awsdns-06.netawsdns-hostmaster@amazon.com serial=1

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
TXTid:2241856a-0dc5-4ec9-9789-b8c95ad7a656
TXTSE zone update: 2026-07-27 22:07:28 +0000 (EPOCH 1785190048) (auto)
SOAcatcher-in-the-rye.nic.seregistry-default@nic.se serial=1785190436

Same first word

studocu.at
studocu.fr
studocu.id
studocu.dk
studocu.de
studocu.nl
studocu.it
studocu.vn
studocu.ch
studocu.com
studocu.es
studocu.be
studocu.se

Similar names

cdsuotu.com
studuco.com

DNS History

16 records (7 active, 9 former)

20162017201820192020202120222023202420252026NSns-1365.awsdns-42.orgns-1724.awsdns-23.co.ukns-353.awsdns-44.comns-561.awsdns-06.netns1.hostnet.nlns2.hostnetbv.comns3.hostnetbv.nlA100.59.142.6354.211.32.15698.80.38.59100.56.99.5435.173.43.1325.61.251.8450.19.175.25052.16.116.1654.205.225.237
●NSns-1365.awsdns-42.org2026-06-13 → 2026-07-27 · 3 obs
○ 2017-03-29 07:23:58
● 2026-06-13 04:40:28
● 2026-07-27 22:54:38
●NSns-1724.awsdns-23.co.uk2026-06-13 → 2026-07-27 · 3 obs
○ 2017-03-29 07:23:58
● 2026-06-13 04:40:28
● 2026-07-27 22:54:38
●NSns-353.awsdns-44.com2026-06-13 → 2026-07-27 · 3 obs
○ 2017-03-29 07:23:58
● 2026-06-13 04:40:28
● 2026-07-27 22:54:38
●NSns-561.awsdns-06.net2026-06-13 → 2026-07-27 · 3 obs
○ 2017-03-29 07:23:58
● 2026-06-13 04:40:28
● 2026-07-27 22:54:38
○NSns1.hostnet.nl2015-08-23 → 2017-03-29 · 4 obs
● 2015-08-23 06:37:52
● 2017-03-29 07:23:58
○ 2026-06-13 04:40:28
○ 2026-07-27 22:54:38
○NSns2.hostnetbv.com2015-08-23 → 2017-03-29 · 4 obs
● 2015-08-23 06:37:52
● 2017-03-29 07:23:58
○ 2026-06-13 04:40:28
○ 2026-07-27 22:54:38
○NSns3.hostnetbv.nl2015-08-23 → 2017-03-29 · 4 obs
● 2015-08-23 06:37:52
● 2017-03-29 07:23:58
○ 2026-06-13 04:40:28
○ 2026-07-27 22:54:38
○A100.56.99.542026-06-13 → 2026-06-13 · 3 obs
○ 2017-03-29 07:23:58
● 2026-06-13 04:40:28
○ 2026-07-27 22:54:38
●A100.59.142.632026-07-27 → 2026-07-27 · 2 obs
○ 2026-06-21 23:43:24
● 2026-07-27 22:54:38
○A35.173.43.1322026-06-13 → 2026-06-13 · 3 obs
○ 2017-03-29 07:23:58
● 2026-06-13 04:40:28
○ 2026-07-27 22:54:38
○A5.61.251.842015-08-23 → 2015-08-23 · 3 obs
● 2015-08-23 06:37:52
○ 2015-12-08 13:06:50
○ 2026-07-27 22:54:38
○A50.19.175.2502026-06-13 → 2026-06-13 · 4 obs
○ 2017-03-29 07:23:58
● 2026-06-13 04:40:28
○ 2026-06-21 23:43:24
○ 2026-07-27 22:54:38
○A52.16.116.162015-12-08 → 2017-03-29 · 5 obs
○ 2015-08-23 06:37:52
● 2015-12-08 13:06:50
● 2017-03-29 07:23:58
○ 2026-06-13 04:40:28
○ 2026-07-27 22:54:38
○A54.205.225.2372026-06-21 → 2026-06-21 · 3 obs
○ 2026-06-13 04:40:28
● 2026-06-21 23:43:24
○ 2026-07-27 22:54:38
●A54.211.32.1562026-07-27 → 2026-07-27 · 2 obs
○ 2026-06-21 23:43:24
● 2026-07-27 22:54:38
●A98.80.38.592026-07-27 → 2026-07-27 · 2 obs
○ 2026-06-21 23:43:24
● 2026-07-27 22:54:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sea.ns.se, b.ns.se, c.ns.se, f.ns.se...-
studocu.sens-1365.awsdns-42.org, ns-1724.awsdns-23.co.uk, ns-353.awsdns-44.com, ns-561.awsdns-06.net-

✅ Authoritative Response

Server:205.251.197.85

NS records: ns-1365.awsdns-42.org, ns-1724.awsdns-23.co.uk, ns-353.awsdns-44.com, ns-561.awsdns-06.net

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

No DNSKEY for studocu.se

⏱️ Timing

Total: 703ms | Queries: -

📄 Records

TypeCountSample Data
A398.80.38.59, 54.211.32.156...
NS4ns-1365.awsdns-42.org, ns-1724.awsdns-23.co.uk...
SOA1ns-561.awsdns-06.net awsdns-hostmaster.a

Analysis

IP Addresses

studocu.se resolves to three IP addresses: 54.211.32.156, 98.80.38.59 and 100.59.142.63.

studocu.se shares its IP numbers with other host names like ec2-98-80-38-59.compute-1.amazonaws.com, studocu.id and studocu.com.

Name Servers

Four name servers handle the delegation for studocu.se: ns-353.awsdns-44.com, ns-561.awsdns-06.net, ns-1365.awsdns-42.org and ns-1724.awsdns-23.co.uk.

studocu.se shares at least some of its name servers with other domains, including diadelhinchacai.com, debtorportal.com, starcolombia.co and two others.

The host names ns-353.awsdns-44.com, ns-561.awsdns-06.net, ns-1365.awsdns-42.org and ns-1724.awsdns-23.co.uk each resolve to two IP addresses: ns-353.awsdns-44.com resolves to 205.251.193.97 and 2600:9000:5301:6100::1; ns-561.awsdns-06.net resolves to 205.251.194.49 and 2600:9000:5302:3100::1; ns-1365.awsdns-42.org resolves to 205.251.197.85 and 2600:9000:5305:5500::1; ns-1724.awsdns-23.co.uk resolves to 205.251.198.188 and 2600:9000:5306:bc00::1.