Domain report: randstad.de

Registration

info

.de country-code

Found

TLD: .de (country-code)
ICANN policies apply: no

Checks

i

.de is a country-code TLD (ccTLD)

Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.

#1
✓ TLD delegated and signed #2

.de is delegated in the root zone and DNSSEC-signed.
i

Registration data not available

No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.

#3

Delegation

info

ns-100.awsdns-12.com, ns-1444.awsdns-52.org, ns-1697.awsdns-20.co.uk, ns-708.awsdns-24.net

Found

Parent zone: de
Delegation from: a.nic.de (194.0.0.53)
NS at the parent: ns-100.awsdns-12.com, ns-1444.awsdns-52.org, ns-1697.awsdns-20.co.uk, ns-708.awsdns-24.net
NS in the zone: ns-100.awsdns-12.com, ns-1444.awsdns-52.org, ns-1697.awsdns-20.co.uk, ns-708.awsdns-24.net

Nameserver	Addresses	Network (AS)	Glue
ns-100.awsdns-12.com	205.251.192.100 2600:9000:5300:6400::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-
ns-1444.awsdns-52.org	205.251.197.164 2600:9000:5305:a400::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-
ns-1697.awsdns-20.co.uk	205.251.198.161 2600:9000:5306:a100::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-
ns-708.awsdns-24.net	205.251.194.196 2600:9000:5302:c400::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-

Checks

✓ 4 nameservers #6

Delegated to ns-100.awsdns-12.com, ns-1444.awsdns-52.org, ns-1697.awsdns-20.co.uk, ns-708.awsdns-24.net.
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ No glue needed #8

All nameservers are outside the zone, so no glue records are needed.
✓ All names resolve #9

Every nameserver name has an address and is not an alias.
✓ Nameservers in different networks #10

The nameservers are spread over 4 IPv4 /24s and 4 IPv6 /48s.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
✓ Nameserver names under 4 TLDs #12

Nameserver names use the TLDs .com, .net, .org, .uk.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns-100.awsdns-12.com 205.251.192.100	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-100.awsdns-12.com 2600:9000:5300:6400::1	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-1444.awsdns-52.org 205.251.197.164	NOERROR, 3 ms, authoritative	no	yes / yes	refused	-
ns-1444.awsdns-52.org 2600:9000:5305:a400::1	NOERROR, 4 ms, authoritative	no	yes / yes	refused	-
ns-1697.awsdns-20.co.uk 205.251.198.161	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-1697.awsdns-20.co.uk 2600:9000:5306:a100::1	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-708.awsdns-24.net 205.251.194.196	NOERROR, 4 ms, authoritative	no	yes / yes	refused	-
ns-708.awsdns-24.net 2600:9000:5302:c400::1	NOERROR, 4 ms, authoritative	no	yes / yes	refused	-

Checks

✓ All respond #14

All 8 nameserver addresses answered.
✓ All authoritative #15

Every responding nameserver answers authoritatively for the zone.
✓ No recursion #16

The nameservers do not answer recursive queries for other domains.
✓ No version disclosed #17

The nameservers don't reveal their software version.
✓ Zone transfers refused #18

No nameserver allows a zone transfer to the public.
✓ TCP supported #19

All nameservers answer over TCP.
✓ EDNS supported #20

All nameservers support EDNS(0).
✓ Public addresses #21

All nameserver addresses are publicly routable.

SOA

pass

serial 1 · primary ns-1697.awsdns-20.co.uk

Found

Primary (MNAME): ns-1697.awsdns-20.co.uk
Contact (RNAME): awsdns-hostmaster.amazon.com
Serial: 1
Refresh / retry: 7200 s / 900 s
Expire: 1209600 s
Negative TTL: 86400 s

Serial per nameserver

Nameserver	Serial
ns-100.awsdns-12.com (205.251.192.100)	1
ns-100.awsdns-12.com (2600:9000:5300:6400::1)	1
ns-1444.awsdns-52.org (205.251.197.164)	1
ns-1444.awsdns-52.org (2600:9000:5305:a400::1)	1
ns-1697.awsdns-20.co.uk (205.251.198.161)	1
ns-1697.awsdns-20.co.uk (2600:9000:5306:a100::1)	1
ns-708.awsdns-24.net (205.251.194.196)	1
ns-708.awsdns-24.net (2600:9000:5302:c400::1)	1

Checks

✓ Serial 1 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
✓ Primary is a public nameserver #24

The primary nameserver ns-1697.awsdns-20.co.uk is one of the listed nameservers.
✓ Contact awsdns-hostmaster@amazon.com #25

The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
✓ Counter serial #26

The serial 1 is a plain counter.

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC
Signatures valid until: 22 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
6749	ECDSAP256SHA256 (13)	SHA256 5C955DB69F4DF351…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
26104	ZSK (256)	ECDSAP256SHA256 (13)
45958	ZSK (256)	ECDSAP256SHA256 (13)
6749	KSK (257)	ECDSAP256SHA256 (13)

Checks

✓ Signed and validated #27

The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
✓ DS matches a key #28

The DS record at the parent matches a key in the zone: key tag 6749 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Short-lived signatures (online signing) #30

Signatures are valid for 2h0m0s and created on demand; the current one was made at 2026-10-21 22:52 UTC and expires at 2026-10-22 01:07 UTC.
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NSEC

The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.

#31

Records

warn

23 records at the apex

Found

Read from: 205.251.192.100:53

Type	Value	TTL
SOA	ns-1697.awsdns-20.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400	900
NS	ns-100.awsdns-12.com.	14400
NS	ns-1444.awsdns-52.org.	14400
NS	ns-1697.awsdns-20.co.uk.	14400
NS	ns-708.awsdns-24.net.	14400
A	18.200.91.182	60
A	52.49.53.147	60
MX	10 mx-in01.eu.retarus.com.	900
MX	10 mx-in02.eu.retarus.com.	900
TXT	"00D0Y000001YFap=1TBSp00000001wz"	3600
TXT	"00D3000000000We=1TBRo00000002Zk"	3600
TXT	"MS=ms41932861"	3600
TXT	"MS=ms94808613"	3600
TXT	"Token: SFMC-eOZTX4JY14AIQLWFSLrZ86Hl9qyGMiqXHY7BPvlV"	3600
TXT	"_xrers4ox2ihusk5aq3mqwxsuin1k32l"	3600
TXT	"figma-domain-verification=3b3c2468a65fb2ffdbb9ab91b8e590cadeefa90b9756adb13add89301dc23f18-1768313079"	3600
TXT	"google-site-verification=gDaMLWfvAUo3ZxGIBjD9LRviav_VjCDL1mMZuYQhwEk"	3600
TXT	"google-site-verification=ntA1LIBq4Zus43T_eXm2aGnpuQjvlI9BaUQUFOt2da4"	3600
TXT	"onetrust-domain-verification=4aa5d7d934774e339acdc26fd5ead760"	3600
TXT	"smartsheet-site-validation=azl9vnK8Iy-kk2Cfa9VA0JFI76axU6Ir"	3600
TXT	"swisssign-check=zK9hwjD3aqza3QNtGqU9Fq7oS3E"	3600
TXT	"teamviewer-sso-verification=e201d90318af46b2a4c98f74c2c31e77"	3600
TXT	"v=spf1 include:_spf.retarus.com include:_spf.google.com include:_spf.salesforce.com include:amazonses.com include:396971.spf10.hubspotemail.net include:spf.protection.outlook.com ip4:178.77.121.136 ip4:93.190.66.6 ip4:93.190.66.3" " ip4:178.77.121.128/26 ip4:185.134.242.25 ip4:195.66.99.135 ip4:62.75.247.44 ip4:212.227.89.57 ip4:217.160.226.166 ip4:185.134.240.0/24" " ip4:83.246.89.68 ip4:82.165.193.1 ip4:87.79.30.25 ip4:85.25.144.9 ip4:213.52.186.141 ip4:213.52.186.142 ip4:91.217.141.0/24 ip4:87.79.30.30" " ip4:54.194.192.132 ip4:193.27.49.212/30 ip6:2a00:e50:f155:7::d4/126 ip4:185.136.64.128/27 ip4:185.136.65.128/27 ~all"	3600

Checks

!

Very low TTLs

These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 4h; resolvers may use either.

#32
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
✓ No wildcard #34

Names that don't exist return NXDOMAIN.
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No CAA records

Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.

#35