Check DNS, Urls + Redirects, Certificates and Content of your Website




X

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

Checked:
18.03.2023 20:14:17


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
tc.apple.com
A

yes
1
0

AAAA

yes


www.tc.apple.com
A

yes
1
0

AAAA

yes


*.apple.com
A

yes



AAAA

yes



CNAME

yes


*.tc.apple.com
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 951, Flags 256



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



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 02.04.2023, 00:00:00 +, Signature-Inception: 12.03.2023, 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: com
com
1 DS RR in the parent zone found



DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest 4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=



1 RRSIG RR to validate DS RR found



RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 31.03.2023, 17:00:00 +, Signature-Inception: 18.03.2023, 16:00:00 +, KeyTag 951, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 951 used to validate the DS RRSet in the parent zone



2 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 30909, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 36739, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 26.03.2023, 18:24:21 +, Signature-Inception: 11.03.2023, 18:19:21 +, KeyTag 30909, Signer-Name: com



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 30909 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest "4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: apple.com
apple.com
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 "s0nu66fpjnr91aioa0a6649sii2jvq1a" between the hashed NSEC3-owner "s0nu5uhi013ivs6ttusm4fc3oqjb2ejf" and the hashed NextOwner "s0nu9mfcv1q1nsbmapqmu0h7mhn47jdt". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner s0nu5uhi013ivs6ttusm4fc3oqjb2ejf.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 22.03.2023, 05:18:46 +, Signature-Inception: 15.03.2023, 04:08:46 +, KeyTag 36739, Signer-Name: com



DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ck0pojmg874ljref7efn8430qvit8bsm" as Owner. That's the Hash of "com" with the NextHashedOwnerName "ck0q2d6ni4i7eqh8na30ns61o48ul8g5". So that domain name is the Closest Encloser of "apple.com". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 23.03.2023, 04:22:56 +, Signature-Inception: 16.03.2023, 03:12:56 +, KeyTag 36739, Signer-Name: com



0 DNSKEY RR found




Zone: tc.apple.com
tc.apple.com
0 DS RR in the parent zone found



0 DNSKEY RR found




Zone: www.tc.apple.com
www.tc.apple.com
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.tc.apple.com
  usmsc2-extxfr-001.dns.apple.com

tc.apple.com
  usmsc2-extxfr-001.dns.apple.com
17.47.176.10
Mesa/Arizona/United States (US) - Apple Inc.

apple.com
  a.ns.apple.com / deber5-dns-001
17.253.200.1
Cupertino/California/United States (US) - Apple Inc.


 
2620:149:ae0::53
New York/United States (US) - Apple Inc.


  b.ns.apple.com / deber5-dns-002
17.253.207.1
Cupertino/California/United States (US) - Apple Inc.


 
2620:149:ae7::53
New York/United States (US) - Apple Inc.


  c.ns.apple.com / 2.ber.pch
204.19.119.1
New York/United States (US) - WoodyNet, Inc.


 
2620:171:800:714::1
Montreal/Quebec/Canada (CA) - WoodyNet, Inc.


  d.ns.apple.com / 1.ber.pch
204.26.57.1
Montreal/Quebec/Canada (CA) - WoodyNet, Inc.


 
2620:171:801:714::1
Montreal/Quebec/Canada (CA) - WoodyNet, Inc.


  usmsc2-extxfr-001.dns.apple.com

com
  a.gtld-servers.net / nnn1-fra6


  b.gtld-servers.net / nnn1-elpar7


  c.gtld-servers.net / nnn1-fra6


  d.gtld-servers.net / nnn1-fra6


  e.gtld-servers.net / nnn1-fra6


  f.gtld-servers.net / nnn1-fra5


  g.gtld-servers.net / nnn1-fra5


  h.gtld-servers.net / nnn1-fra5


  i.gtld-servers.net / nnn1-fra5


  j.gtld-servers.net / nnn1-nlams-1a


  k.gtld-servers.net / nnn1-nlams-1d


  l.gtld-servers.net / nnn1-nlams-1d


  m.gtld-servers.net / nnn1-nlams-1e


4. SOA-Entries


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1679166828
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:4


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1679166843
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:9


Domain:apple.com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


Domain:apple.com
Zone-Name:apple.com
Primary:usmsc2-extxfr-001.dns.apple.com
Mail:hostmaster.apple.com
Serial:2010129304
Refresh:900
Retry:900
Expire:2016000
TTL:14400
num Entries:8


Domain:tc.apple.com
Zone-Name:apple.com
Primary:usmsc2-extxfr-001.dns.apple.com
Mail:hostmaster.apple.com
Serial:2010129304
Refresh:900
Retry:900
Expire:2016000
TTL:14400
num Entries:1


Domain:www.tc.apple.com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
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

DomainnameHttp-StatusredirectSec.G







7. Comments


1. General Results, most used to calculate the result

Aname "tc.apple.com" is subdomain, public suffix is ".com", top-level-domain is ".com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services", num .com-domains preloaded: 85538 (complete: 220007)
AGood: No asked Authoritative Name Server had a timeout
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
AGood: _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Domainname: _mta-sts.tc.apple.com
BBad: _mta-sts TXT found, but invalid

2. Header-Checks

U

No https result with http status 2** or 4** (standard-check) found, no header checked.

3. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
AInfo:: 2 Queries complete, 2 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
AGood: Some ip addresses of name servers found with the minimum of two DNS Queries. One to find the TLD-Zone, one to ask the TLD-Zone.a.ns.apple.com (17.253.200.1, 2620:149:ae0::53), b.ns.apple.com (17.253.207.1, 2620:149:ae7::53), c.ns.apple.com (204.19.119.1, 2620:171:800:714::1), d.ns.apple.com (204.26.57.1, 2620:171:801:714::1)
AGood (1 - 3.0):: An average of 0.5 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 5 different Name Servers found: a.ns.apple.com, b.ns.apple.com, c.ns.apple.com, d.ns.apple.com, usmsc2-extxfr-001.dns.apple.com, 4 Name Servers included in Delegation: a.ns.apple.com, b.ns.apple.com, c.ns.apple.com, d.ns.apple.com, 4 Name Servers included in 2 Zone definitions: a.ns.apple.com, b.ns.apple.com, c.ns.apple.com, d.ns.apple.com, 1 Name Servers listed in SOA.Primary: usmsc2-extxfr-001.dns.apple.com.
AGood: Only one SOA.Primary Name Server found.: usmsc2-extxfr-001.dns.apple.com.
Error: SOA.Primary Name Server not included in the delegation set.: usmsc2-extxfr-001.dns.apple.com.
AGood: 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: a.ns.apple.com, b.ns.apple.com, c.ns.apple.com, d.ns.apple.com
AGood: All Name Server Domain Names have a Public Suffix.
Error: Name Server Domain Names with Public Suffix and without ip address found.: 1 Name Servers without ipv4 and ipv6: 1

AGood: Minimal 2 different name servers (public suffix and public ip address) found: 4 different Name Servers found
AGood: All name servers have ipv4- and ipv6-addresses.: 4 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.: 4 Name Servers, 1 Top Level Domain: com
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: apple.com
AGood: Name servers with different Country locations found: 4 Name Servers, 2 Countries: CA, US
AInfo: Ipv4-Subnet-list: 4 Name Servers, 2 different subnets (first Byte): 17., 204., 3 different subnets (first two Bytes): 17.253., 204.19., 204.26., 4 different subnets (first three Bytes): 17.253.200., 17.253.207., 204.19.119., 204.26.57.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 4 Name Servers with IPv6, 1 different subnets (first block): 2620:, 2 different subnets (first two blocks): 2620:0149:, 2620:0171:, 4 different subnets (first three blocks): 2620:0149:0ae0:, 2620:0149:0ae7:, 2620:0171:0800:, 2620:0171:0801:, 4 different subnets (first four blocks): 2620:0149:0ae0:0000:, 2620:0149:0ae7:0000:, 2620:0171:0800:0714:, 2620:0171:0801:0714:
AGood: Name Server IPv6 addresses from different subnets found.
AGood: Nameserver supports TCP connections: 1 good Nameserver
AGood: Nameserver supports Echo Capitalization: 1 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 1 good Nameserver
AGood: 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: usmsc2-extxfr-001.dns.apple.com: 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.
Nameserver doesn't pass all EDNS-Checks: usmsc2-extxfr-001.dns.apple.com: 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.
AGood: All SOA have the same Serial Number
AGood: CAA entries found, creating certificate is limited: entrust.net is allowed to create certificates
AGood: CAA entries found, creating certificate is limited: pki.apple.com is allowed to create certificates

4. Content- and Performance-critical Checks

AGood: 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
ADuration: 93737 milliseconds, 93.737 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. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: a.ns.apple.com, b.ns.apple.com, c.ns.apple.com, d.ns.apple.com

QNr.DomainTypeNS used
1
com
NS
c.root-servers.net (2001:500:2::c)

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
2
a.ns.apple.com: 17.253.200.1, 2620:149:ae0::53
NS
e.gtld-servers.net (2001:502:1ca1::30)

Answer: b.ns.apple.com
17.253.207.1, 2620:149:ae7::53

Answer: c.ns.apple.com
204.19.119.1, 2620:171:800:714::1

Answer: d.ns.apple.com
204.26.57.1, 2620:171:801:714::1


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.tc.apple.com
0

no CAA entry found
1
0
tc.apple.com
0

no CAA entry found
1
0
apple.com
5
issue
entrust.net
1
0

5
iodef
mailto:contact_pki@apple.com
1
0

5
issue
pki.apple.com
1
0
com
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
apple.com

ok
1
0
tc.apple.com
v=spf1 redirect=_spf.apple.com
ok
1
0
www.tc.apple.com
v=spf1 redirect=_spf.apple.com
ok
1
0
_acme-challenge.tc.apple.com
v=spf1 redirect=_spf.apple.com
missing entry or wrong length
1
0
_acme-challenge.www.tc.apple.com
v=spf1 redirect=_spf.apple.com
missing entry or wrong length
1
0
_acme-challenge.tc.apple.com.apple.com
v=spf1 redirect=_spf.apple.com
perhaps wrong
1
0
_acme-challenge.tc.apple.com.tc.apple.com
v=spf1 redirect=_spf.apple.com
perhaps wrong
1
0
_acme-challenge.www.tc.apple.com.tc.apple.com
v=spf1 redirect=_spf.apple.com
perhaps wrong
1
0
_acme-challenge.www.tc.apple.com.www.tc.apple.com
v=spf1 redirect=_spf.apple.com
perhaps wrong
1
0


15. DomainService - Entries

TypeDomainPrefValueDNS-errornum AnswersStatusDescription
MX

tc.apple.com
10
mx-in.g.apple.com
06ok

A


17.57.170.2
01ok

CNAME


00ok
MX

tc.apple.com
20
mx-in-rno.apple.com
06ok

A


17.179.253.242
01ok

CNAME


00ok
MX

tc.apple.com
20
mx-in-mdn.apple.com
06ok

A


17.32.222.242
01ok

CNAME


00ok
MX

tc.apple.com
20
mx-in-crk.apple.com
06ok

A


17.72.136.242
01ok

CNAME


00ok
MX

tc.apple.com
20
mx-in-hfd.apple.com
06ok

A


17.57.165.2
01ok

CNAME


00ok
MX

tc.apple.com
20
mx-in-vib.apple.com
06ok

A


17.57.170.2
01ok

CNAME


00ok
MX

www.tc.apple.com
10
mx-in.g.apple.com
06ok

A


17.57.170.2
01ok

CNAME


00ok
MX

www.tc.apple.com
20
mx-in-rno.apple.com
06ok

A


17.179.253.242
01ok

CNAME


00ok
MX

www.tc.apple.com
20
mx-in-mdn.apple.com
06ok

A


17.32.222.242
01ok

CNAME


00ok
MX

www.tc.apple.com
20
mx-in-crk.apple.com
06ok

A


17.72.136.242
01ok

CNAME


00ok
MX

www.tc.apple.com
20
mx-in-hfd.apple.com
06ok

A


17.57.165.2
01ok

CNAME


00ok
MX

www.tc.apple.com
20
mx-in-vib.apple.com
06ok

A


17.57.170.2
01ok

CNAME


00ok
_mta-sts
TXT
_mta-sts.tc.apple.com

v=spf1 redirect=_spf.apple.com
2A MTA-STS TXT Entry (Mail Transfer Agent Strict Transport Security) must start with "'v=STSv1". Do you really want to create a MTA-STS? Or is it the effect of a wildcard * DNS?
_dmarc
TXT
_dmarc.tc.apple.com

v=spf1 redirect=_spf.apple.com
013A _dmarc TXT Entry must start with "'v=DMARC1". Do you really want to create a DMARC? Or is it the effect of a wildcard * DNS?



16. Cipher Suites

No Ciphers found


17. Portchecks

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



Permalink: https://check-your-website.server-daten.de/?i=ccb10a7d-3bc9-4b57-8ff0-eb694b77de5d


Last Result: https://check-your-website.server-daten.de/?q=tc.apple.com - 2023-03-18 20:14:17


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