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



Y

Private IP-Address found

Checked:
21.07.2021 10:44:42


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
dev.khohangkhongkeodai.com


yes
3
3
www.dev.khohangkhongkeodai.com

Name Error
yes
1
0
dev.khohangkhongkeodai.com
A
10.10.1.28
No Hostname found
no


*.khohangkhongkeodai.com
A
Fatal: DNS Timeout
yes



AAAA
Fatal: DNS Timeout
yes



CNAME
Fatal: DNS Timeout
yes


*.dev.khohangkhongkeodai.com
A
Fatal: DNS Timeout
yes



AAAA
Fatal: DNS Timeout
yes



CNAME
Fatal: DNS Timeout
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 26838, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 11.08.2021, 00:00:00 +, Signature-Inception: 21.07.2021, 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: 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: 03.08.2021, 05:00:00 +, Signature-Inception: 21.07.2021, 04:00:00 +, KeyTag 26838, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26838 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 39343, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 03.08.2021, 18:24:21 +, Signature-Inception: 19.07.2021, 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: khohangkhongkeodai.com
khohangkhongkeodai.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 "o7s44k67q08tvpvelsbdtfsu8tl9pc7b" between the hashed NSEC3-owner "o7s3vtb30dh9hmssd64q4cg3srjp582c" and the hashed NextOwner "o7s44lsjl8c8s8nn4kttqpc1i9m5hum5". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner o7s3vtb30dh9hmssd64q4cg3srjp582c.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 27.07.2021, 04:55:37 +, Signature-Inception: 20.07.2021, 03:45:37 +, KeyTag 39343, 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 "ck0q1gin43n1arrc9osm6qpqr81h5m9a". So that domain name is the Closest Encloser of "khohangkhongkeodai.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: 27.07.2021, 04:25:17 +, Signature-Inception: 20.07.2021, 03:15:17 +, KeyTag 39343, Signer-Name: com



0 DNSKEY RR found




Zone: dev.khohangkhongkeodai.com
dev.khohangkhongkeodai.com
0 DS RR in the parent zone found

Zone: www.dev.khohangkhongkeodai.com
www.dev.khohangkhongkeodai.com
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.dev.khohangkhongkeodai.com
  ns1.pavietnam.vn

khohangkhongkeodai.com
  ns1.dotvndns.vn


X  ns1.pavietnam.vn


X 
112.213.89.3
Ho Chi Minh City/Ho Chi Minh/Vietnam (VN) - SUPERDATA


  ns2.dotvndns.vn


 
222.255.121.247
Ho Chi Minh City/Ho Chi Minh/Vietnam (VN) - VietNam Post and Telecom Corporation


  ns2.pavietnam.vn
222.255.121.247
Ho Chi Minh City/Ho Chi Minh/Vietnam (VN) - VietNam Post and Telecom Corporation


X  nsbak.dotvndns.com
112.213.89.22
Ho Chi Minh City/Ho Chi Minh/Vietnam (VN) - SUPERDATA

com
  a.gtld-servers.net / nnn1-fra6


  b.gtld-servers.net / nnn1-eltxl2


  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-ein1


  k.gtld-servers.net / nnn1-ein3


  l.gtld-servers.net / nnn1-ein5


  m.gtld-servers.net / nnn1-ein3


4. SOA-Entries


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1626857060
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:11


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1626857075
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:2


Domain:khohangkhongkeodai.com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:4


Domain:khohangkhongkeodai.com
Zone-Name:khohangkhongkeodai.com
Primary:ns1.pavietnam.vn
Mail:hostmaster.khohangkhongkeodai.com
Serial:2021072105
Refresh:14400
Retry:3600
Expire:1209600
TTL:86400
num Entries:3


Domain:www.dev.khohangkhongkeodai.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 "dev.khohangkhongkeodai.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: 57967 (complete: 151507)
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
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: ns1.pavietnam.vn: 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: ns1.pavietnam.vn / 112.213.89.3: 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: nsbak.dotvndns.com / 112.213.89.22: 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
Ydev.khohangkhongkeodai.com

10.10.1.28
Warning: Private ip address found. No connection possible. There are two types of ip addresses: Worldwide unique, global addresses and private addresses. If you want that other users connect your domain, your domain must have minimal one A- (ipv4) or AAAA- (ipv6) entry with a global ip address. Check https://en.wikipedia.org/wiki/Private_network to understand the details: 10.0.0.0 to 10.255.255.255: Class A - one private net with 16.777.216 adresses

2. DNS- and NameServer - Checks

AInfo:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 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.ns1.pavietnam.vn (112.213.89.3, 2406:9c80::66), ns2.dotvndns.vn (222.255.121.247, 2406:9c80::9000:111), nsbak.dotvndns.com (112.213.89.22, 2406:9c80::9000:302), ns2.pavietnam.vn (222.255.121.247, 2406:9c80::9000:111)
AGood (1 - 3.0):: An average of 1.8 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 5 different Name Servers found: ns1.dotvndns.vn, ns1.pavietnam.vn, ns2.dotvndns.vn, ns2.pavietnam.vn, nsbak.dotvndns.com, 3 Name Servers included in Delegation: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com, 2 Name Servers included in 2 Zone definitions: ns1.pavietnam.vn, ns2.pavietnam.vn, 1 Name Servers listed in SOA.Primary: ns1.pavietnam.vn.
AGood: Only one SOA.Primary Name Server found.: ns1.pavietnam.vn.
Error: SOA.Primary Name Server not included in the delegation set.: ns1.pavietnam.vn.
XFatal: Inconsistency 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.: ns1.pavietnam.vn (): Delegation: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com, Zone: ns1.pavietnam.vn, ns2.pavietnam.vn. Name Servers defined in Delegation, missing in Zone: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com.Name Servers defined in Zone, missing in Delegation: ns1.pavietnam.vn, ns2.pavietnam.vn.
XFatal: Inconsistency 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.: ns1.pavietnam.vn (112.213.89.3): Delegation: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com, Zone: ns1.pavietnam.vn, ns2.pavietnam.vn. Name Servers defined in Delegation, missing in Zone: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com.Name Servers defined in Zone, missing in Delegation: ns1.pavietnam.vn, ns2.pavietnam.vn.
XFatal: Inconsistency 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.: ns2.dotvndns.vn (): Delegation: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com, Zone: ns1.pavietnam.vn, ns2.pavietnam.vn. Name Servers defined in Delegation, missing in Zone: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com.Name Servers defined in Zone, missing in Delegation: ns1.pavietnam.vn, ns2.pavietnam.vn.
XFatal: Inconsistency 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.: ns2.dotvndns.vn (222.255.121.247): Delegation: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com, Zone: ns1.pavietnam.vn, ns2.pavietnam.vn. Name Servers defined in Delegation, missing in Zone: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com.Name Servers defined in Zone, missing in Delegation: ns1.pavietnam.vn, ns2.pavietnam.vn.
XFatal: Inconsistency 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.: ns2.pavietnam.vn (222.255.121.247): Delegation: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com, Zone: ns1.pavietnam.vn, ns2.pavietnam.vn. Name Servers defined in Delegation, missing in Zone: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com.Name Servers defined in Zone, missing in Delegation: ns1.pavietnam.vn, ns2.pavietnam.vn.
AGood: All Name Server Domain Names have a Public Suffix.
Error: Name Server Domain Names with Public Suffix and without ip address found.: 3 Name Servers without ipv4 and ipv6: 3

AInfo: Ipv4-Subnet-list: 4 Name Servers, 2 different subnets (first Byte): 112., 222., 2 different subnets (first two Bytes): 112.213., 222.255., 2 different subnets (first three Bytes): 112.213.89., 222.255.121.
AGood: Name Server IPv4-addresses from different subnet found:
XNameserver Timeout checking Echo Capitalization: ns1.pavietnam.vn
XNameserver Timeout checking Echo Capitalization: nsbak.dotvndns.com / 112.213.89.22
XNameserver Timeout checking EDNS512: ns1.pavietnam.vn
XNameserver Timeout checking EDNS512: ns1.pavietnam.vn / 112.213.89.3
XNameserver Timeout checking EDNS512: nsbak.dotvndns.com / 112.213.89.22
Nameserver doesn't pass all EDNS-Checks: ns1.dotvndns.vn: 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: ns1.pavietnam.vn: OP100: fatal timeout. FLAGS: ok. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: ok. NSID: fatal timeout. COOKIE: ok. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: ns1.pavietnam.vn: 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: ns1.pavietnam.vn / 112.213.89.3: OP100: ok. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: ok. DNSSEC: fatal timeout. V1DNSSEC: ok. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: nsbak.dotvndns.com / 112.213.89.22: OP100: fatal timeout. FLAGS: fatal timeout. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: ok. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
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: 432950 milliseconds, 432.950 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

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: ns1.pavietnam.vn, ns2.dotvndns.vn, ns2.pavietnam.vn, nsbak.dotvndns.com

QNr.DomainTypeNS used
1
vn
NS
b.root-servers.net (2001:500:200::b)

Answer: a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn, e.dns-servers.vn, f.dns-servers.vn, g.dns-servers.vn
2
ns1.pavietnam.vn: 112.213.89.3, 2406:9c80::66
NS
a.dns-servers.vn (2001:678:4::12)

Answer: ns2.pavietnam.vn
222.255.121.247, 2406:9c80::9000:111
3
ns2.dotvndns.vn: 222.255.121.247, 2406:9c80::9000:111
NS
a.dns-servers.vn (2001:678:4::12)

Answer: ns1.dotvndns.vn
112.213.89.3, 2406:9c80::66
4
com
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
5
nsbak.dotvndns.com: 112.213.89.22, 2406:9c80::9000:302
NS
a.gtld-servers.net (2001:503:a83e::2:30)
6
net
NS
b.root-servers.net (2001:500:200::b)

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
7
nsbak.pavietnam.net: 112.213.89.22, 2406:9c80::9000:302
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: ns1.pavietnam.net
112.213.89.3, 2406:9c80::66

Answer: ns2.pavietnam.net
222.255.121.247, 2406:9c80::9000:111


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
khohangkhongkeodai.com



3
3
com
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
khohangkhongkeodai.com


3
3
_acme-challenge.dev.khohangkhongkeodai.com.khohangkhongkeodai.com

Name Error - The domain name does not exist
1
0


15. Portchecks

No Port checks



Permalink: https://check-your-website.server-daten.de/?i=a037d6cd-fa79-4b52-a830-2e3f4e0b752b


Last Result: https://check-your-website.server-daten.de/?q=dev.khohangkhongkeodai.com - 2021-07-21 10:44:42


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