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



X

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

Checked:
23.02.2021 04:35:57


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
vhyl.gov.tw


yes
1
0
www.vhyl.gov.tw


yes
1
0
*.vhyl.gov.tw
A

yes



A

yes



AAAA

yes



AAAA

yes



CNAME

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 42351, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 13.03.2021, 00:00:00 +, Signature-Inception: 20.02.2021, 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: tw
tw
1 DS RR in the parent zone found



DS with Algorithm 8, KeyTag 40792, DigestType 2 and Digest oF20sN65cQMTYbtiHouxuNc0ZmWj0bBuwUMa230BXuk=



1 RRSIG RR to validate DS RR found



RRSIG-Owner tw., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 07.03.2021, 21:00:00 +, Signature-Inception: 22.02.2021, 20:00:00 +, KeyTag 42351, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 42351 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 39666, Flags 256



Public Key with Algorithm 8, KeyTag 40792, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 51756, Flags 256



2 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner tw., Algorithm: 8, 1 Labels, original TTL: 900 sec, Signature-expiration: 25.03.2021, 02:01:24 +, Signature-Inception: 23.02.2021, 02:01:24 +, KeyTag 40792, Signer-Name: tw



RRSIG-Owner tw., Algorithm: 8, 1 Labels, original TTL: 900 sec, Signature-expiration: 25.03.2021, 02:01:24 +, Signature-Inception: 23.02.2021, 02:01:24 +, KeyTag 51756, Signer-Name: tw



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 40792 used to validate the DNSKEY RRSet



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 51756 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 40792, DigestType 2 and Digest "oF20sN65cQMTYbtiHouxuNc0ZmWj0bBuwUMa230BXuk=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: gov.tw
gov.tw
2 DS RR in the parent zone found



DS with Algorithm 8, KeyTag 514, DigestType 2 and Digest fmTPTWXzNwWjZLN2pDxuYuttoxNMUgfg8aeb1q8QGZE=



DS with Algorithm 8, KeyTag 19435, DigestType 2 and Digest oK44QJkDBTuUjmUEt+nJBKE5lSuumXmEGUUkjQS5PMw=



1 RRSIG RR to validate DS RR found



RRSIG-Owner gov.tw., Algorithm: 8, 2 Labels, original TTL: 300 sec, Signature-expiration: 25.03.2021, 02:01:24 +, Signature-Inception: 23.02.2021, 02:01:24 +, KeyTag 51756, Signer-Name: tw



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 51756 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 19435, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 54498, Flags 256



Public Key with Algorithm 8, KeyTag 57183, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner gov.tw., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 01.03.2021, 00:00:00 +, Signature-Inception: 25.01.2021, 00:00:00 +, KeyTag 19435, Signer-Name: gov.tw



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 19435 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 19435, DigestType 2 and Digest "oK44QJkDBTuUjmUEt+nJBKE5lSuumXmEGUUkjQS5PMw=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: vhyl.gov.tw
vhyl.gov.tw
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 "6njrdrh6shbrnccd17vhar2oboqs6rro" between the hashed NSEC3-owner "6njrdrh6shbrnccd17vhar2oboqs6rro" and the hashed NextOwner "6nq0pvbr8prg7pljris3cjdq0kpf561q". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: No Bitmap? Validated: RRSIG-Owner 6njrdrh6shbrnccd17vhar2oboqs6rro.gov.tw., Algorithm: 8, 3 Labels, original TTL: 43200 sec, Signature-expiration: 01.03.2021, 00:00:00 +, Signature-Inception: 25.01.2021, 00:00:00 +, KeyTag 54498, Signer-Name: gov.tw



0 DNSKEY RR found




Zone: www.vhyl.gov.tw
www.vhyl.gov.tw
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
vhyl.gov.tw
U  vhyl.gov.tw


 
210.241.10.254
Taipei/Taiwan/Taiwan (TW) - Government Service Network

gov.tw
T  a.twnic.net.tw
130.211.241.105
Taipei/Taiwan/Taiwan (TW) - Google LLC


 
211.73.64.22
Taipei/Taiwan/Taiwan (TW) - NBEN


  b.twnic.net.tw
103.235.88.1
Taipei/Taiwan/Taiwan (TW) - TWNIC


 
203.73.24.24
Neihu/New Taipei/Taiwan (TW) - Digital United Inc.


 
2001:45b1:0:5::24
Neihu District/Taiwan/Taiwan (TW) - SEEDNET-TWNIC


  c.twnic.net.tw
168.95.192.10
Taipei/Taiwan/Taiwan (TW) - Chunghwa Telecom Co.


  d.twnic.net.tw
202.169.175.130
Taipei/Taiwan/Taiwan (TW) - Academia Sinica


 
60.199.165.187
Poxin/Taiwan/Taiwan (TW) - Taiwan Fixed Network


 
2001:4541:9010:7::187
Xiatayou/Taiwan/Taiwan (TW) - Taiwan Fixed Network Co., Ltd


 
2001:c08:175:128::175:128
Taipei/Taiwan/Taiwan (TW) - Academia Sinica


  e.twnic.net.tw
211.20.231.12
Kaohsiung City/Kaohsiung/Taiwan (TW) - Chunghwa Telecom Co., Ltd.


 
211.20.231.7
Kaohsiung City/Kaohsiung/Taiwan (TW) - Chunghwa Telecom Co., Ltd.


 
2001:b000:1e0:c000::12
Taipei/Taiwan/Taiwan (TW) - Hinet Twnic


  f.twnic.net.tw
203.66.87.200
Taipei/Taiwan/Taiwan (TW) - Chunghwa Telecom Co., Ltd.


X  g.twnic.net.tw
60.199.165.184
Poxin/Taiwan/Taiwan (TW) - Taiwan Fixed Network


 
2001:4541:9010:7::184
Xiatayou/Taiwan/Taiwan (TW) - Taiwan Fixed Network Co., Ltd


  h.twnic.net.tw
163.28.4.10
Taipei/Taiwan/Taiwan (TW) - T-EDU.TW


 
220.229.225.196
Kanzijiao/Taiwan/Taiwan (TW) - New Centry InfoComm Tech. Co., Ltd.


 
2001:cd8:400::196
Taipei/Taiwan/Taiwan (TW) - Digital United Inc.

tw
  a.dns.tw


  anytld.apnic.net / ns4-de1.apnic.net


  b.dns.tw


  c.dns.tw


  d.dns.tw


  e.dns.tw


  f.dns.tw


  g.dns.tw


  h.dns.tw / 2.ber.pch


  ns.twnic.net


4. SOA-Entries


Domain:tw
Zone-Name:tw
Primary:a.dns.tw
Mail:snw.twnic.net.tw
Serial:2010082689
Refresh:3600
Retry:900
Expire:1296000
TTL:900
num Entries:10


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


Domain:gov.tw
Zone-Name:gov.tw
Primary:a.twnic.net.tw
Mail:hostmaster.hinet.net
Serial:2013043160
Refresh:600
Retry:1800
Expire:2419200
TTL:43200
num Entries:18


Domain:vhyl.gov.tw
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:2


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 "vhyl.gov.tw" is domain, public suffix is ".gov.tw", top-level-domain is ".tw", top-level-domain-type is "country-code", Country is Taiwan (Province of China), tld-manager is "Taiwan Network Information Center (TWNIC)", num .tw-domains preloaded: 180 (complete: 142558)
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
XFatal error: Nameserver doesn't support TCP connection: g.twnic.net.tw / 60.199.165.184: Fatal error (-14). Details: Unable to read data from the transport connection: Ein Verbindungsversuch ist fehlgeschlagen, da die Gegenstelle nach einer bestimmten Zeitspanne nicht richtig reagiert hat, oder die hergestellte Verbindung war fehlerhaft, da der verbundene Host nicht reagiert hat. - Ein Verbindungsversuch ist fehlgeschlagen, da die Gegenstelle nach einer bestimmten Zeitspanne nicht richtig reagiert hat, oder die hergestellte Verbindung war fehlerhaft, da der verbundene Host nicht reagiert hat
XFatal error: Nameserver doesn't support TCP connection: vhyl.gov.tw: Fatal error - no NameServer IP-Address or connection. Details: One or more errors occurred. - Dies ist normalerweise ein zeitweiliger Fehler bei der Auflösung von Hostnamen. Grund ist, dass der lokale Server keine Rückmeldung vom autorisierenden Server erhalten hat
XFatal error: Nameserver doesn't support TCP connection: vhyl.gov.tw / 210.241.10.254: ServerFailure
XFatal error: Nameserver isn't defined or has timeout

2. DNS- and NameServer - Checks

AInfo:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 6 Name Servers.
AInfo:: 7 Queries complete, 7 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.b.twnic.net.tw (2001:45b1:0:5::24), d.twnic.net.tw (2001:4541:9010:7::187, 2001:c08:175:128::175:128, 202.169.175.130, 60.199.165.187), e.twnic.net.tw (2001:b000:1e0:c000::12, 211.20.231.12, 211.20.231.7), f.twnic.net.tw (203.66.87.200), g.twnic.net.tw (2001:4541:9010:7::184, 60.199.165.184), h.twnic.net.tw (163.28.4.10, 2001:cd8:400::196, 220.229.225.196)
AGood (1 - 3.0):: An average of 1.2 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 8 different Name Servers found: a.twnic.net.tw, b.twnic.net.tw, c.twnic.net.tw, d.twnic.net.tw, e.twnic.net.tw, f.twnic.net.tw, g.twnic.net.tw, h.twnic.net.tw, 8 Name Servers included in Delegation: a.twnic.net.tw, b.twnic.net.tw, c.twnic.net.tw, d.twnic.net.tw, e.twnic.net.tw, f.twnic.net.tw, g.twnic.net.tw, h.twnic.net.tw, 8 Name Servers included in 1 Zone definitions: a.twnic.net.tw, b.twnic.net.tw, c.twnic.net.tw, d.twnic.net.tw, e.twnic.net.tw, f.twnic.net.tw, g.twnic.net.tw, h.twnic.net.tw, 1 Name Servers listed in SOA.Primary: a.twnic.net.tw.
AGood: Only one SOA.Primary Name Server found.: a.twnic.net.tw.
AGood: SOA.Primary Name Server included in the delegation set.: a.twnic.net.tw.
AGood: All Name Server Domain Names have a Public Suffix.
AGood: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
AGood: All Name Server ip addresses are public.
AInfo: Ipv4-Subnet-list: 13 Name Servers, 9 different subnets (first Byte): 103., 130., 163., 168., 202., 203., 211., 220., 60., 11 different subnets (first two Bytes): 103.235., 130.211., 163.28., 168.95., 202.169., 203.66., 203.73., 211.20., 211.73., 220.229., 60.199., 11 different subnets (first three Bytes): 103.235.88., 130.211.241., 163.28.4., 168.95.192., 202.169.175., 203.66.87., 203.73.24., 211.20.231., 211.73.64., 220.229.225., 60.199.165.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 6 Name Servers with IPv6, 1 different subnets (first block): 2001:, 5 different subnets (first two blocks): 2001:0c08:, 2001:0cd8:, 2001:4541:, 2001:45b1:, 2001:b000:, 5 different subnets (first three blocks): 2001:0c08:0175:, 2001:0cd8:0400:, 2001:4541:9010:, 2001:45b1:0000:, 2001:b000:01e0:, 5 different subnets (first four blocks): 2001:0c08:0175:0128:, 2001:0cd8:0400:0000:, 2001:4541:9010:0007:, 2001:45b1:0000:0005:, 2001:b000:01e0:c000:
AGood: Name Server IPv6 addresses from different subnets found.
XNameserver Timeout checking Echo Capitalization: a.twnic.net.tw / 130.211.241.105
XNameserver Timeout checking EDNS512: a.twnic.net.tw / 130.211.241.105
Nameserver doesn't pass all EDNS-Checks: a.twnic.net.tw / 130.211.241.105: OP100: fatal timeout. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: anytld.apnic.net: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found (ns4-de1.apnic.net). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: vhyl.gov.tw: OP100: fatal timeout. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: vhyl.gov.tw / 210.241.10.254: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
AGood: 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.

3. 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: 627077 milliseconds, 627.077 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" > 2019 are listed

Issuerlast 7 daysactivenum Certs
CN=政府伺服器數位憑證管理中心 - G1, O=行政院, C=TW
0
1
1
OU=政府憑證管理中心, O=行政院, C=TW
0
0
1

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
2313966223
precert
CN=政府伺服器數位憑證管理中心 - G1, O=行政院, C=TW
2020-01-10 08:24:47
2022-01-10 08:24:47
www.flvh.gov.tw, www.vhtt.gov.tw, www.vhyl.gov.tw
3 entries


345943357
leaf cert
OU=政府憑證管理中心, O=行政院, C=TW
2018-03-01 08:21:43
2020-03-01 08:21:43
www.vhyl.gov.tw
1 entries



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.twnic.net.tw, b.twnic.net.tw, c.twnic.net.tw, d.twnic.net.tw, e.twnic.net.tw, f.twnic.net.tw, g.twnic.net.tw, h.twnic.net.tw

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

Answer: a.dns.tw, anytld.apnic.net, b.dns.tw, c.dns.tw, d.dns.tw, e.dns.tw, f.dns.tw, g.dns.tw, h.dns.tw, ns.twnic.net
2
a.twnic.net.tw
NS
a.dns.tw (2001:45b1:0:5::25)

Answer: a.twnic.net.tw, anytld.apnic.net, b.twnic.net.tw, c.twnic.net.tw, d.twnic.net.tw, e.twnic.net.tw, f.twnic.net.tw, g.twnic.net.tw, h.dns.tw, h.twnic.net.tw

Answer: b.twnic.net.tw
2001:45b1:0:5::24

Answer: d.twnic.net.tw
2001:4541:9010:7::187, 2001:c08:175:128::175:128, 202.169.175.130, 60.199.165.187

Answer: e.twnic.net.tw
2001:b000:1e0:c000::12, 211.20.231.12, 211.20.231.7

Answer: f.twnic.net.tw
203.66.87.200

Answer: g.twnic.net.tw
2001:4541:9010:7::184, 60.199.165.184

Answer: h.twnic.net.tw
163.28.4.10, 2001:cd8:400::196, 220.229.225.196
3
c.twnic.net.tw
NS
a.dns.tw (2001:45b1:0:5::25)

Answer: a.twnic.net.tw, anytld.apnic.net, b.twnic.net.tw, c.twnic.net.tw, d.twnic.net.tw, e.twnic.net.tw, f.twnic.net.tw, g.twnic.net.tw, h.dns.tw, h.twnic.net.tw

Answer: b.twnic.net.tw
2001:45b1:0:5::24

Answer: d.twnic.net.tw
2001:4541:9010:7::187, 2001:c08:175:128::175:128, 202.169.175.130, 60.199.165.187

Answer: e.twnic.net.tw
2001:b000:1e0:c000::12, 211.20.231.12, 211.20.231.7

Answer: f.twnic.net.tw
203.66.87.200

Answer: g.twnic.net.tw
2001:4541:9010:7::184, 60.199.165.184

Answer: h.twnic.net.tw
163.28.4.10, 2001:cd8:400::196, 220.229.225.196
4
a.twnic.net.tw: No A record found
A
anytld.apnic.net (2001:dd8:12::53)
5
a.twnic.net.tw: No AAAA record found
AAAA
anytld.apnic.net (2001:dd8:12::53)
6
c.twnic.net.tw: No A record found
A
anytld.apnic.net (2001:dd8:12::53)
7
c.twnic.net.tw: No AAAA record found
AAAA
anytld.apnic.net (2001:dd8:12::53)


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
vhyl.gov.tw



1
0
gov.tw
0

no CAA entry found
1
0
tw
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
vhyl.gov.tw


1
0
_acme-challenge.vhyl.gov.tw


1
0
_acme-challenge.vhyl.gov.tw.vhyl.gov.tw


1
0


15. Portchecks

No Port checks



Permalink: https://check-your-website.server-daten.de/?i=7600e5b8-aacf-4e65-aabc-671d19f46c9a


Last Result: https://check-your-website.server-daten.de/?q=vhyl.gov.tw - 2021-02-23 04:35:57


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