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




Y

Private IP-Address found

Checked:
24.01.2023 12:29:40


Older results


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
gsx-gslb01.kakao.com
A
172.16.1.216
No Hostname found
yes
1
0

AAAA

yes


www.gsx-gslb01.kakao.com

Name Error
yes
1
0
*.kakao.com
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.gsx-gslb01.kakao.com
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
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: 11.02.2023, 00:00:00 +, Signature-Inception: 21.01.2023, 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: 06.02.2023, 05:00:00 +, Signature-Inception: 24.01.2023, 04:00:00 +, 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: 04.02.2023, 18:24:21 +, Signature-Inception: 20.01.2023, 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: kakao.com
kakao.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 "lvpn8nb7l8r1mi5dejojdm36itnaij93" between the hashed NSEC3-owner "lvpn7q9fph5bceorj19onl4k1mscj68p" and the hashed NextOwner "lvpndhhvob8bk6ldgqtm5q9s0sq9jur6". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner lvpn7q9fph5bceorj19onl4k1mscj68p.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 29.01.2023, 06:33:33 +, Signature-Inception: 22.01.2023, 05:23:33 +, 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 "kakao.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: 30.01.2023, 05:23:04 +, Signature-Inception: 23.01.2023, 04:13:04 +, KeyTag 36739, Signer-Name: com



0 DNSKEY RR found




Zone: gsx-gslb01.kakao.com
gsx-gslb01.kakao.com
0 DS RR in the parent zone found



0 DNSKEY RR found




Zone: www.gsx-gslb01.kakao.com
www.gsx-gslb01.kakao.com
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.gsx-gslb01.kakao.com
  ns.kakaocorp.com

gsx-gslb01.kakao.com
  ns.kakaocorp.com

kakao.com
  ns.kakaocorp.com


  ns1.kakao.com
113.61.106.5
Jeju-si/Jeju-do/South Korea (KR) - Kakao Corp


  ns2.kakao.com
113.61.107.5
Jeju-si/Jeju-do/South Korea (KR) - Kakao Corp

com
  a.gtld-servers.net / nnn1-fra6


  b.gtld-servers.net / nnn1-eltxl1


  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-1b


  k.gtld-servers.net / nnn1-nlams-1e


  l.gtld-servers.net / nnn1-nlams-1e


  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:1674559760
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:10


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1674559775
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:3


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


Domain:kakao.com
Zone-Name:kakao.com
Primary:ns.kakaocorp.com
Mail:root.kakaocorp.com
Serial:1669019441
Refresh:1800
Retry:600
Expire:2419200
TTL:300
num Entries:2


Domain:gsx-gslb01.kakao.com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


Domain:www.gsx-gslb01.kakao.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 "gsx-gslb01.kakao.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: 83852 (complete: 216710)
AGood: No asked Authoritative Name Server had a timeout
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.
Ygsx-gslb01.kakao.com

172.16.1.216
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: 172.16.0.0 to 172.31.255.255: Class B - 16 private net, every with 65.536 addresses
BNo _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.gsx-gslb01.kakao.com

2. Header-Checks (alpha, started 2022-10-23, may be buggy / incomplete)

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 2 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.ns1.kakao.com (113.61.106.5), ns2.kakao.com (113.61.107.5)
AGood (1 - 3.0):: An average of 1.0 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 3 different Name Servers found: ns.kakaocorp.com, ns1.kakao.com, ns2.kakao.com, 2 Name Servers included in Delegation: ns1.kakao.com, ns2.kakao.com, 2 Name Servers included in 2 Zone definitions: ns1.kakao.com, ns2.kakao.com, 1 Name Servers listed in SOA.Primary: ns.kakaocorp.com.
AGood: Only one SOA.Primary Name Server found.: ns.kakaocorp.com.
Error: SOA.Primary Name Server not included in the delegation set.: ns.kakaocorp.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

AInfo: Ipv4-Subnet-list: 2 Name Servers, 1 different subnets (first Byte): 113., 1 different subnets (first two Bytes): 113.61., 2 different subnets (first three Bytes): 113.61.106., 113.61.107.
AGood: Name Server IPv4-addresses from different subnet found:
AGood: Nameserver supports TCP connections: 2 good Nameserver
AGood: Nameserver supports Echo Capitalization: 2 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 2 good Nameserver
Nameserver doesn't pass all EDNS-Checks: ns.kakaocorp.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: ns.kakaocorp.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: ns.kakaocorp.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
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

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: 106386 milliseconds, 106.386 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

Issuerlast 7 daysactivenum Certs
CN=DigiCert TLS RSA SHA256 2020 CA1, O=DigiCert Inc, C=US
0
2
2
CN=Thawte TLS RSA CA G1, OU=www.digicert.com, O=DigiCert Inc, C=US
0
1
2
CN=Amazon, OU=Server CA 1B, O=Amazon, C=US
0
0
2

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
7584774093
precert
CN=DigiCert TLS RSA SHA256 2020 CA1, O=DigiCert Inc, C=US
2022-09-20 22:00:00
2023-09-22 21:59:59
*.kakao.com, kakao.com
2 entries


7584771770
precert
CN=DigiCert TLS RSA SHA256 2020 CA1, O=DigiCert Inc, C=US
2022-09-20 22:00:00
2023-09-22 21:59:59
*.kakao.com, kakao.com
2 entries


7483638697
precert
CN=Thawte TLS RSA CA G1, OU=www.digicert.com, O=DigiCert Inc, C=US
2022-09-05 22:00:00
2023-09-29 21:59:59
*.kakao.com, kakao.com
2 entries


5783425809
leaf cert
CN=Amazon, OU=Server CA 1B, O=Amazon, C=US
2021-12-07 23:00:00
2023-01-05 22:59:59
*.kakao.com
1 entries


5236310941
precert
CN=Thawte TLS RSA CA G1, OU=www.digicert.com, O=DigiCert Inc, C=US
2021-09-16 22:00:00
2022-09-30 21:59:59
*.kakao.com, kakao.com
2 entries


3948946505
leaf cert
CN=Amazon, OU=Server CA 1B, O=Amazon, C=US
2021-01-06 23:00:00
2022-02-05 22:59:59
*.kakao.com
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: ns1.kakao.com, ns2.kakao.com

QNr.DomainTypeNS used
1
com
NS
a.root-servers.net (2001:503:ba3e::2:30)

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
ns1.kakao.com: 113.61.106.5
NS
b.gtld-servers.net (2001:503:231d::2:30)

Answer: ns2.kakao.com
113.61.107.5


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
gsx-gslb01.kakao.com
0

no CAA entry found
1
0
kakao.com
0

no CAA entry found
1
0
com
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
kakao.com
google-site-verification=OVqf3b_fME-xxHijfDRV8CIZmbAbauZlS97ScYKYy7I
ok
1
0
kakao.com
google-site-verification=puTbVVviI88yMTQf88LO_8L9y2pdlP6bI98p3qO0XdA
ok
1
0
kakao.com
google-site-verification=WO3BhsNNCPrfc_jvi4eOZoqNPaY2rw1o95tmtXUXXG8
ok
1
0
kakao.com
v=spf1 ip4:103.246.58.76 ip4:103.246.58.77 ip4:103.246.58.78 ip4:103.246.58.79 ip4:103.246.58.61 ip4:103.246.58.62 ip4:103.246.58.63 ip4:103.246.58.64 ip4:103.246.58.65 include:_spf.daum.net include:_spf.kakao.com ~all
ok
1
0
gsx-gslb01.kakao.com

ok
1
0
_acme-challenge.gsx-gslb01.kakao.com

Name Error - The domain name does not exist
1
0
_acme-challenge.gsx-gslb01.kakao.com.kakao.com

Name Error - The domain name does not exist
1
0
_acme-challenge.gsx-gslb01.kakao.com.gsx-gslb01.kakao.com

Name Error - The domain name does not exist
1
0


15. DomainService - Entries (SSHFP Check is new - 2022-09-24, may be incomplete, alpha, some results are required)

No DomainServiceEntries entries found



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=50a0099c-5cb1-4963-9cd8-c857e765245d


Last Result: https://check-your-website.server-daten.de/?q=gsx-gslb01.kakao.com - 2023-01-24 12:29:40


Do you like this page? Support this tool, add a link on your page:

<a href="https://check-your-website.server-daten.de/?q=gsx-gslb01.kakao.com" target="_blank">Check this Site: gsx-gslb01.kakao.com</a>

Do you really want to support this project? Donate: Check-your-website, IBAN DE98 1001 0010 0575 2211 07, SWIFT/BIC PBNKDEFF, Euro