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DNS-problem - authoritative Nameserver refused, not defined or timeout

Checked:
01.12.2023 23:54:21

Older results

No older results found

1. IP-Addresses

Host	Type	is auth.	∑ Queries	∑ Timeout
uaenorth.azure.glb.confluent.cloud		yes	1	0
www.uaenorth.azure.glb.confluent.cloud		yes	1	0
*.azure.glb.confluent.cloud	A	yes
	AAAA	yes
	CNAME	yes
*.uaenorth.azure.glb.confluent.cloud	A	yes
	AAAA	yes
	CNAME	yes

2. DNSSEC

Zone (*)	DNSSEC - Informations

Zone: (root)
(root)	1 DS RR published


	DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=


	• Status: Valid because published


	2 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 46780, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 21.12.2023, 00:00:00 +, Signature-Inception: 30.11.2023, 00:00:00 +, KeyTag 20326, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: cloud
cloud	1 DS RR in the parent zone found


	DS with Algorithm 8, KeyTag 48499, DigestType 2 and Digest ZVwXNRFS0LapWbesLGdMo3uzUT9hLPgD6uFvVyxkirQ=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner cloud., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 14.12.2023, 21:00:00 +, Signature-Inception: 01.12.2023, 20:00:00 +, KeyTag 46780, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 46780 used to validate the DS RRSet in the parent zone


	2 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 37675, Flags 256


	Public Key with Algorithm 8, KeyTag 48499, Flags 257 (SEP = Secure Entry Point)


	2 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner cloud., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 31.12.2023, 21:51:10 +, Signature-Inception: 01.12.2023, 21:51:10 +, KeyTag 37675, Signer-Name: cloud


	RRSIG-Owner cloud., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 31.12.2023, 21:51:10 +, Signature-Inception: 01.12.2023, 21:51:10 +, KeyTag 48499, Signer-Name: cloud


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 37675 used to validate the DNSKEY RRSet


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 48499 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 48499, DigestType 2 and Digest "ZVwXNRFS0LapWbesLGdMo3uzUT9hLPgD6uFvVyxkirQ=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: confluent.cloud
confluent.cloud	0 DS RR in the parent zone found


	DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "thsheunljfq3c3fse0lavekdmgojhtle" between the hashed NSEC3-owner "thrbebfr0kkvi9fsmah8u9p5uf9ltcim" and the hashed NextOwner "ti04bq4o0c9b83ddq8td5d6vlvj30pmc". So the parent zone confirmes the not-existence of a DS RR. Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner thrbebfr0kkvi9fsmah8u9p5uf9ltcim.cloud., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 31.12.2023, 21:51:10 +, Signature-Inception: 01.12.2023, 21:51:10 +, KeyTag 37675, Signer-Name: cloud


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ht3bbe52qfea3ekhel6vae4cvue8777v" as Owner. That's the Hash of "cloud" with the NextHashedOwnerName "hta10esk0rfpem7seo184apbvhtv2hm7". So that domain name is the Closest Encloser of "confluent.cloud". Opt-Out: True. Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ht3bbe52qfea3ekhel6vae4cvue8777v.cloud., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 31.12.2023, 21:51:10 +, Signature-Inception: 01.12.2023, 21:51:10 +, KeyTag 37675, Signer-Name: cloud


	0 DNSKEY RR found




Zone: glb.confluent.cloud
glb.confluent.cloud	0 DS RR in the parent zone found


	0 DNSKEY RR found




Zone: azure.glb.confluent.cloud
azure.glb.confluent.cloud	0 DS RR in the parent zone found


	0 DNSKEY RR found




Zone: uaenorth.azure.glb.confluent.cloud
uaenorth.azure.glb.confluent.cloud	0 DS RR in the parent zone found


	0 DNSKEY RR found




Zone: www.uaenorth.azure.glb.confluent.cloud
www.uaenorth.azure.glb.confluent.cloud	0 DS RR in the parent zone found

3. Name Servers

Domain	Nameserver	NS-IP
www.uaenorth.azure.glb.confluent.cloud	• glbns1.confluent.cloud		•
uaenorth.azure.glb.confluent.cloud	• glbns1.confluent.cloud	75.2.51.54 Seattle/Washington/United States (US) - Amazon.com, Inc.	•
azure.glb.confluent.cloud	• glbns1.confluent.cloud	75.2.51.54 Seattle/Washington/United States (US) - Amazon.com, Inc.	•
glb.confluent.cloud	• glbns1.confluent.cloud	75.2.51.54 Seattle/Washington/United States (US) - Amazon.com, Inc.	•
	• glbns2.confluent.cloud	99.83.215.133 Seattle/Washington/United States (US) - Amazon.com, Inc.	•
confluent.cloud	• ns-1101.awsdns-09.org / 52e094ca86f2e81578c1ddf2b27f74ab -	205.251.196.77 Dublin/Leinster/Ireland (IE) - Amazon.com	•
	•	2600:9000:5304:4d00::1 London/England/United Kingdom (GB) - Amazon.com	•
	• ns-2008.awsdns-59.co.uk / a7464234051c64af4837e3be77815c83 -	205.251.199.216 Herndon/Virginia/United States (US) - Amazon.com	•
	•	2600:9000:5307:d800::1 Seattle/Washington/United States (US) - Amazon.com	•
	• ns-336.awsdns-42.com / f21baec7c554e0397f44289ea1baa674 -	205.251.193.80 Dublin/Leinster/Ireland (IE) - Amazon.com	•
	•	2600:9000:5301:5000::1 Seattle/Washington/United States (US) - Amazon.com	•
	• ns-648.awsdns-17.net / bec0844a130101795d62a001484e9558 -	205.251.194.136 Sterling/Virginia/United States (US) - Amazon.com	•
	•	2600:9000:5302:8800::1 Seattle/Washington/United States (US) - Amazon.com	•
cloud	• ns.uniregistry.net
	• ns1.uniregistry.net / dns01.den1.tucowsregistry.net		•
	• ns2.uniregistry.info / dns02.den1.tucowsregistry.net		•
	• ns3.uniregistry.net / LHR2		•
	• ns4.uniregistry.info / FRA2		•

4. SOA-Entries

Domain:	cloud
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:	1

Domain:	cloud
Zone-Name:	cloud
Primary:	ns.uniregistry.net
Mail:	ops.uniregistry.net
Serial:	1701471028
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	86400
num Entries:	4

Domain:	confluent.cloud
Zone-Name:	confluent.cloud
Primary:	ns-336.awsdns-42.com
Mail:	awsdns-hostmaster.amazon.com
Serial:	1
Refresh:	7200
Retry:	900
Expire:	1209600
TTL:	86400
num Entries:	8

Domain:	glb.confluent.cloud
Zone-Name:	glb.confluent.cloud
Primary:	glbns1.confluent.cloud
Mail:	hostmaster.confluent.cloud
Serial:	1
Refresh:	7200
Retry:	900
Expire:	1209600
TTL:	900
num Entries:	2

Domain:	azure.glb.confluent.cloud
Zone-Name:	azure.glb.confluent.cloud
Primary:	glbns1.confluent.cloud
Mail:	hostmaster.confluent.cloud
Serial:	1
Refresh:	7200
Retry:	900
Expire:	1209600
TTL:	900
num Entries:	1

Domain:	uaenorth.azure.glb.confluent.cloud
Zone-Name:	uaenorth.azure.glb.confluent.cloud
Primary:	glbns1.confluent.cloud
Mail:	hostmaster.confluent.cloud
Serial:	1
Refresh:	7200
Retry:	900
Expire:	1209600
TTL:	900
num Entries:	1

Domain:	www.uaenorth.azure.glb.confluent.cloud
Zone-Name:	www.uaenorth.azure.glb.confluent.cloud
Primary:	glbns1.confluent.cloud
Mail:	hostmaster.confluent.cloud
Serial:	1
Refresh:	7200
Retry:	900
Expire:	1209600
TTL:	900
num Entries:	1

5. Screenshots

No Screenshot listed, because no url-check with https + http status 200-299, 400-599 + not-ACME-check found.

6. Url-Checks

Domainname	Http-Status	redirect	Sec.	G
•

7. Comments

	1. General Results, most used to calculate the result
A	name "uaenorth.azure.glb.confluent.cloud" is subdomain, public suffix is ".cloud", top-level-domain is ".cloud", top-level-domain-type is "generic", tld-manager is "ARUBA PEC S.p.A.", num .cloud-domains preloaded: 380 (complete: 231048)
A	Good: No asked Authoritative Name Server had a timeout
A	Excellent: Main Domain is in the Google-Preload-List
A	Excellent: Main Domain is in the Mozilla/Firefox-Preload-List
A	HSTS-Preload-Status: Preloaded. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
B	No _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Read the result of server-daten.de (Url-Checks, Comments, Connections and DomainServiceRecords) to see a complete definition. Domainname: _mta-sts.uaenorth.azure.glb.confluent.cloud
	2. Header-Checks
U		No https result with http status 2 or 4 (standard-check) found, no header checked.
	3. DNS- and NameServer - Checks
A	Info:: 20 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 1 Name Servers.
A	Info:: 20 Queries complete, 20 with IPv6, 0 with IPv4.
A	Good: All DNS Queries done via IPv6.
	Bad (greater 8):: An average of 20.0 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 1 different Name Servers found: glbns1.confluent.cloud, 1 Name Servers included in Delegation: glbns1.confluent.cloud, 1 Name Servers included in 1 Zone definitions: glbns1.confluent.cloud, 1 Name Servers listed in SOA.Primary: glbns1.confluent.cloud.
A	Good: Only one SOA.Primary Name Server found.: glbns1.confluent.cloud.
A	Good: SOA.Primary Name Server included in the delegation set.: glbns1.confluent.cloud.
A	Good: Consistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Ordered list of name servers: glbns1.confluent.cloud
A	Good: All Name Server Domain Names have a Public Suffix.
	Warning: No Name Server IPv6 address found. IPv6 is the future, so your name servers should be visible via IPv6.: 1 different Name Servers found
	Warning: All Name Servers have the same Top Level Domain / Public Suffix. If there is a problem with that Top Level Domain, your domain may be affected. Better: Use Name Servers with different top level domains.: 1 Name Servers, 1 Top Level Domain: cloud
	Warning: All Name Servers have the same domain name. If there is a problem with that domain name (or with the name servers of that domain name), your domain may be affected. Better: Use Name Servers with different domain names / different top level domains.: Only one domain name used: confluent.cloud
	Warning: All Name Servers from the same Country / IP location.: 1 Name Servers, 1 Countries: US
A
A	Good: Nameserver supports TCP connections: 1 good Nameserver
A	Good: Nameserver supports Echo Capitalization: 1 good Nameserver
A	Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 1 good Nameserver
A	Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 1 good Nameserver
	Nameserver doesn't pass all EDNS-Checks: ns.uniregistry.net: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
A	Good: All SOA have the same Serial Number
	Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.
	4. Content- and Performance-critical Checks
A	Good: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx
A	Duration: 77843 milliseconds, 77.843 seconds

8. Connections

No connection informations found. Perhaps only http - connections.

9. Certificates

No certificate informations found. Perhaps only http - connections.

10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

No CertSpotter - CT-Log entries found

2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

No CRT - CT-Log entries found

11. Html-Content - Entries

No Html-Content entries found. Only checked if https + status 200/401/403/404

12. Html-Parsing via https://validator.w3.org/nu/

Small Code update, wait one minute

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: glbns1.confluent.cloud

QNr.	Domain	Type	NS used
1	cloud	NS	m.root-servers.net (2001:dc3::35)
	Answer: ns1.uniregistry.net, ns2.uniregistry.info, ns3.uniregistry.net, ns4.uniregistry.info
2	glbns1.confluent.cloud	NS	ns1.uniregistry.net (2620:57:4000:1::1)
	Answer: ns-1101.awsdns-09.org, ns-2008.awsdns-59.co.uk, ns-336.awsdns-42.com, ns-648.awsdns-17.net
3	org	NS	e.root-servers.net (2001:500:a8::e)
	Answer: a0.org.afilias-nst.info, a2.org.afilias-nst.info, b0.org.afilias-nst.org, b2.org.afilias-nst.org, c0.org.afilias-nst.info, d0.org.afilias-nst.org
4	ns-1101.awsdns-09.org	NS	a0.org.afilias-nst.info (2001:500:e::1)
	Answer: g-ns-1036.awsdns-09.org, g-ns-137.awsdns-09.org, g-ns-1609.awsdns-09.org, g-ns-715.awsdns-09.org
	Answer: g-ns-1036.awsdns-09.org 205.251.196.12, 2600:9000:5304:c00::1
	Answer: g-ns-137.awsdns-09.org 205.251.192.137, 2600:9000:5300:8900::1
	Answer: g-ns-1609.awsdns-09.org 205.251.198.73, 2600:9000:5306:4900::1
	Answer: g-ns-715.awsdns-09.org 205.251.194.203, 2600:9000:5302:cb00::1
5	uk	NS	a.root-servers.net (2001:503:ba3e::2:30)
	Answer: dns1.nic.uk, dns2.nic.uk, dns3.nic.uk, dns4.nic.uk, nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk
6	ns-2008.awsdns-59.co.uk	NS	dns1.nic.uk (2a01:618:400::1)
	Answer: g-ns-1534.awsdns-59.co.uk, g-ns-1855.awsdns-59.co.uk, g-ns-379.awsdns-59.co.uk, g-ns-955.awsdns-59.co.uk
	Answer: g-ns-1534.awsdns-59.co.uk 205.251.197.254, 2600:9000:5305:fe00::1
	Answer: g-ns-1855.awsdns-59.co.uk 205.251.199.63, 2600:9000:5307:3f00::1
	Answer: g-ns-379.awsdns-59.co.uk 205.251.193.123, 2600:9000:5301:7b00::1
	Answer: g-ns-955.awsdns-59.co.uk 205.251.195.187, 2600:9000:5303:bb00::1
7	com	NS	l.root-servers.net (2001:500:9f::42)
	Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
8	ns-336.awsdns-42.com	NS	a.gtld-servers.net (2001:503:a83e::2:30)
	Answer: g-ns-1194.awsdns-42.com, g-ns-1770.awsdns-42.com, g-ns-43.awsdns-42.com, g-ns-618.awsdns-42.com
	Answer: g-ns-1194.awsdns-42.com 205.251.196.170, 2600:9000:5304:aa00::1
	Answer: g-ns-1770.awsdns-42.com 205.251.198.234, 2600:9000:5306:ea00::1
	Answer: g-ns-43.awsdns-42.com 205.251.192.43, 2600:9000:5300:2b00::1
	Answer: g-ns-618.awsdns-42.com 205.251.194.106, 2600:9000:5302:6a00::1
9	net	NS	d.root-servers.net (2001:500:2d::d)
	Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
10	ns-648.awsdns-17.net	NS	a.gtld-servers.net (2001:503:a83e::2:30)
	Answer: g-ns-1361.awsdns-17.net, g-ns-1937.awsdns-17.net, g-ns-466.awsdns-17.net, g-ns-787.awsdns-17.net
	Answer: g-ns-1361.awsdns-17.net 205.251.197.81, 2600:9000:5305:5100::1
	Answer: g-ns-1937.awsdns-17.net 205.251.199.145, 2600:9000:5307:9100::1
	Answer: g-ns-466.awsdns-17.net 205.251.193.210, 2600:9000:5301:d200::1
	Answer: g-ns-787.awsdns-17.net 205.251.195.19, 2600:9000:5303:1300::1
11	ns-1101.awsdns-09.org: 205.251.196.77	A	g-ns-1036.awsdns-09.org (2600:9000:5304:c00::1)
12	ns-1101.awsdns-09.org: 2600:9000:5304:4d00::1	AAAA	g-ns-1036.awsdns-09.org (2600:9000:5304:c00::1)
13	ns-2008.awsdns-59.co.uk: 205.251.199.216	A	g-ns-1534.awsdns-59.co.uk (2600:9000:5305:fe00::1)
14	ns-2008.awsdns-59.co.uk: 2600:9000:5307:d800::1	AAAA	g-ns-1534.awsdns-59.co.uk (2600:9000:5305:fe00::1)
15	ns-336.awsdns-42.com: 205.251.193.80	A	g-ns-1194.awsdns-42.com (2600:9000:5304:aa00::1)
16	ns-336.awsdns-42.com: 2600:9000:5301:5000::1	AAAA	g-ns-1194.awsdns-42.com (2600:9000:5304:aa00::1)
17	ns-648.awsdns-17.net: 205.251.194.136	A	g-ns-1361.awsdns-17.net (2600:9000:5305:5100::1)
18	ns-648.awsdns-17.net: 2600:9000:5302:8800::1	AAAA	g-ns-1361.awsdns-17.net (2600:9000:5305:5100::1)
19	glbns1.confluent.cloud: 75.2.51.54	A	ns-1101.awsdns-09.org (2600:9000:5304:4d00::1)
20	glbns1.confluent.cloud: No AAAA record found	AAAA	ns-1101.awsdns-09.org (2600:9000:5304:4d00::1)

14. CAA - Entries

Domainname	flag	Value	∑ Queries
www.uaenorth.azure.glb.confluent.cloud			1
uaenorth.azure.glb.confluent.cloud			1
azure.glb.confluent.cloud			1
glb.confluent.cloud			1
confluent.cloud	0	no CAA entry found	1
cloud	0	no CAA entry found	1

15. TXT - Entries

Domainname	TXT Entry	Status	∑ Queries	∑ Timeout
azure.glb.confluent.cloud			1	0
uaenorth.azure.glb.confluent.cloud			1	0
www.uaenorth.azure.glb.confluent.cloud			1	0
_acme-challenge.uaenorth.azure.glb.confluent.cloud			1	0
_acme-challenge.www.uaenorth.azure.glb.confluent.cloud			1	0
_acme-challenge.uaenorth.azure.glb.confluent.cloud.azure.glb.confluent.cloud			1	0
_acme-challenge.uaenorth.azure.glb.confluent.cloud.uaenorth.azure.glb.confluent.cloud			1	0
_acme-challenge.www.uaenorth.azure.glb.confluent.cloud.uaenorth.azure.glb.confluent.cloud			1	0
_acme-challenge.www.uaenorth.azure.glb.confluent.cloud.www.uaenorth.azure.glb.confluent.cloud			1	0

16. DomainService - Entries

No DomainServiceEntries entries found

17. Cipher Suites

No Ciphers found

18. Portchecks

No open Ports <> 80 / 443 found, so no additional Ports checked.

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