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

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Shortcuts: 1. IP-Addresses | 2. DNSSEC | 3. Name Servers | 4. SOA-Entries | 5. Screenshots | 6. Url-Checks | 7. Comments | 8. Connections | 9. Certificates | 10. CT-Logs | 11. Html-Content | 12. Html-Parsing | 13. NameServer-IPAddresses | 14. CAA | 15. TXT | 16. DomainServiceEntries | 17. Cipher Suites | 18. Portchecks |

 

A

 

Top config

 

Checked:
24.01.2022 08:48:05

 

Older results

No older results found

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
jdupdate.o.kencheung.com
A
103.251.113.49
Central/Central and Western District/Hong Kong (HK) - Asia Network Solutions
Hostname: 103.251.113.49.layerdns.cloud
yes
1
0

AAAA

yes


www.jdupdate.o.kencheung.com

Name Error
yes
1
0
*.o.kencheung.com
A
223.17.38.2
yes



AAAA

yes



CNAME
cookie.ddns.kencheung.com
yes


*.jdupdate.o.kencheung.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 9799, 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: 11.02.2022, 00:00:00 +, Signature-Inception: 21.01.2022, 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: 06.02.2022, 05:00:00 +, Signature-Inception: 24.01.2022, 04:00:00 +, KeyTag 9799, Signer-Name: (root)






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 9799 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 38535, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 30.01.2022, 19:24:21 +, Signature-Inception: 15.01.2022, 19:19:21 +, 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: kencheung.com

kencheung.com
2 DS RR in the parent zone found






DS with Algorithm 7, KeyTag 40938, DigestType 1 and Digest RXRqkE1Tjpwxlz1Dm8bHXFv1GRs=






DS with Algorithm 7, KeyTag 40938, DigestType 2 and Digest jXUYzTmwLpQ8G5zDvy35bwY8rS1uhNgBoSadESrA4YU=






1 RRSIG RR to validate DS RR found






RRSIG-Owner kencheung.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 28.01.2022, 05:16:53 +, Signature-Inception: 21.01.2022, 04:06:53 +, KeyTag 38535, Signer-Name: com






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 38535 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 7, KeyTag 27383, Flags 256






Public Key with Algorithm 7, KeyTag 40938, Flags 257 (SEP = Secure Entry Point)






2 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner kencheung.com., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 11.02.2022, 21:00:01 +, Signature-Inception: 12.01.2022, 21:00:01 +, KeyTag 27383, Signer-Name: kencheung.com






RRSIG-Owner kencheung.com., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 11.02.2022, 21:00:01 +, Signature-Inception: 12.01.2022, 21:00:01 +, KeyTag 40938, Signer-Name: kencheung.com






• Status: Good - Algorithmus 7 and DNSKEY with KeyTag 27383 used to validate the DNSKEY RRSet






• Status: Good - Algorithmus 7 and DNSKEY with KeyTag 40938 used to validate the DNSKEY RRSet






• Status: Valid Chain of trust. Parent-DS with Algorithm 7, KeyTag 40938, DigestType 1 and Digest "RXRqkE1Tjpwxlz1Dm8bHXFv1GRs=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone






• Status: Valid Chain of trust. Parent-DS with Algorithm 7, KeyTag 40938, DigestType 2 and Digest "jXUYzTmwLpQ8G5zDvy35bwY8rS1uhNgBoSadESrA4YU=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: o.kencheung.com

o.kencheung.com
0 DS RR in the parent zone found






DS-Query in the parent zone has a valid NSEC RR as result with the domain name between the NSEC-Owner "o.kencheung.com" and the NextOwner "onet.kencheung.com". So the parent zone confirmes the non-existence of a DS RR.
Bitmap: NS, RRSIG, NSEC






0 DNSKEY RR found









Zone: jdupdate.o.kencheung.com

jdupdate.o.kencheung.com
0 DS RR in the parent zone found






0 DNSKEY RR found









Zone: www.jdupdate.o.kencheung.com

www.jdupdate.o.kencheung.com
0 DS RR in the parent zone found

 

3. Name Servers

DomainNameserverNS-IP
www.jdupdate.o.kencheung.com
•  o.kencheung.com

jdupdate.o.kencheung.com
•  o.kencheung.com

o.kencheung.com
•  o.kencheung.com


•  pns.originsystems.com
175.45.29.174
Central/Central and Western District/Hong Kong (HK) - HKBN Enterprise Solutions HK Limited		•

• 
202.181.231.82
Hung Hom/Kowloon City/Hong Kong (HK) - IXTech Limited		•

•  sns.originsystems.com
202.181.231.85
Hung Hom/Kowloon City/Hong Kong (HK) - IXTech Limited		•
kencheung.com
•  pns.originsystems.com
175.45.29.174
Central/Central and Western District/Hong Kong (HK) - HKBN Enterprise Solutions HK Limited		•

• 
202.181.231.82
Hung Hom/Kowloon City/Hong Kong (HK) - IXTech Limited		•

•  sns.originsystems.com
202.181.231.85
Hung Hom/Kowloon City/Hong Kong (HK) - IXTech Limited		•
com
•  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

 

4. SOA-Entries


Domain:com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:13


Domain:kencheung.com
Zone-Name:kencheung.com
Primary:pns.originsystems.com
Mail:hostmaster.originsystems.com
Serial:201901224
Refresh:86400
Retry:1800
Expire:907200
TTL:3600
num Entries:3


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


Domain:o.kencheung.com
Zone-Name:o.kencheung.com
Primary:o.kencheung.com
Mail:postmaster@kencheung.com
Serial:201503378
Refresh:86400
Retry:1800
Expire:604800
TTL:300
num Entries:3


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


Domain:www.jdupdate.o.kencheung.com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


5. Screenshots

Startaddress: https://jdupdate.o.kencheung.com, address used: https://jdupdate.o.kencheung.com/, Screenshot created 2022-01-24 08:50:37 +00:0

 

Mobil (412px x 732px)

 

159 milliseconds

 

Screenshot mobile - https://jdupdate.o.kencheung.com/
Mobil + Landscape (732px x 412px)

 

126 milliseconds

 

Screenshot mobile landscape - https://jdupdate.o.kencheung.com/
Screen (1280px x 1680px)

 

800 milliseconds

 

Screenshot Desktop - https://jdupdate.o.kencheung.com/

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport412732
content Size412732

 

Good: No horizontal scrollbar. Content-size width = visual Viewport width.

 

Chrome-Connection: secure. secure connection settings. The connection to this site is encrypted and authenticated using TLS 1.3, X25519, and AES_256_GCM.

 

Chrome-Resources : secure. all served securely. All resources on this page are served securely.

 

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://jdupdate.o.kencheung.com/
103.251.113.49
302
https://jdupdate.o.kencheung.com/
Html is minified: 111.29 %
0.407
A
Server: nginx
Date: Mon, 24 Jan 2022 07:50:11 GMT
Content-Type: text/html
Content-Length: 138
Connection: close
Location: https://jdupdate.o.kencheung.com/
Strict-Transport-Security: max-age=63072000; includeSubdomains; preload
X-Content-Type-Options: nosniff
X-Frame_Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block

• https://jdupdate.o.kencheung.com/
103.251.113.49
200


4.747
A
small visible content (num chars: 0)
Server: nginx/1.18.0 (Ubuntu)
Date: Mon, 24 Jan 2022 07:50:12 GMT
Content-Type: text/html
Content-Length: 0
Last-Modified: Thu, 18 Nov 2021 09:32:56 GMT
Connection: close
ETag: "61961dc8-0"
Strict-Transport-Security: max-age=63072000; includeSubdomains; preload
X-Content-Type-Options: nosniff
X-Frame_Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Accept-Ranges: bytes

• http://jdupdate.o.kencheung.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
103.251.113.49
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		500

Html is minified: 108.97 %
Other inline scripts (∑/total): 0/0		0.407
S
Internal Server Error
Visible Content: 500 Internal Server Error nginx
Server: nginx
Date: Mon, 24 Jan 2022 07:50:17 GMT
Content-Type: text/html
Content-Length: 170
Connection: close
Strict-Transport-Security: max-age=63072000; includeSubdomains; preload

• https://103.251.113.49/
103.251.113.49
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		404

Html is minified: 110.61 %
Other inline scripts (∑/total): 0/0		4.570
N
Not Found
Certificate error: RemoteCertificateChainErrors
small visible content (num chars: 19)
404 Not Found nginx
Server: nginx
Date: Mon, 24 Jan 2022 07:50:18 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: close
Strict-Transport-Security: max-age=63072000; includeSubdomains; preload
Content-Encoding: gzip

 

7. Comments


1. General Results, most used to calculate the result

Aname "jdupdate.o.kencheung.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: 63591 (complete: 175327)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: jdupdate.o.kencheung.com has only one ip address.
Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: jdupdate.o.kencheung.com has no ipv6 address.
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
AGood: destination is https
AGood - only one version with Http-Status 200
AGood: one preferred version: non-www is preferred
AGood: No cookie sent via http.
AGood: every https has a Strict Transport Security Header
AGood: HSTS max-age is long enough, 63072000 seconds = 730 days
AGood: HSTS has includeSubdomains - directive
AGood: HSTS has preload directive
Warning: HSTS preload sent, but not in Preload-List. Never send a preload directive if you don't know what preload means. Check https://hstspreload.org/ to learn the basics about the Google-Preload list. If you send a preload directive, you should **immediately** add your domain to the HSTS preload list via https://hstspreload.org/ . If Google accepts the domain, so the status is "pending": Note that new entries are hardcoded into the Chrome source code and can take several months before they reach the stable version. So you will see this message some months. If you don't want that or if you don't understand "preload", but if you send a preload directive and if you have correct A-redirects, everybody can add your domain to that list. Then you may have problems, it's not easy to undo that. So if you don't want your domain preloaded, remove the preload directive.
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: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):0 complete Content-Type - header (3 urls)
https://jdupdate.o.kencheung.com/ 103.251.113.49


Url with incomplete Content-Type - header - missing charset
http://jdupdate.o.kencheung.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 103.251.113.49


Url with incomplete Content-Type - header - missing charset
https://103.251.113.49/ 103.251.113.49


Url with incomplete Content-Type - header - missing charset
Ahttp://jdupdate.o.kencheung.com/ 103.251.113.49
302
https://jdupdate.o.kencheung.com/
Correct redirect http - https with the same domain name
Mhttps://103.251.113.49/ 103.251.113.49
404

Misconfiguration - main pages should never send http status 400 - 499
Nhttps://103.251.113.49/ 103.251.113.49
404

Error - Certificate isn't trusted, RemoteCertificateChainErrors
Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain jdupdate.o.kencheung.com, 1 ip addresses.

2. Header-Checks (Cross-Origin-* headers are alpha - started 2024-06-05)


3. DNS- and NameServer - Checks

AInfo:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
AInfo:: 7 Queries complete, 3 with IPv6, 4 with IPv4.
Warning: Only some DNS Queries done via ipv6. IPv6 is the future, so the name servers of your name servers should have ipv6 addresses.
Ok (4 - 8):: An average of 3.5 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 3 different Name Servers found: o.kencheung.com, pns.originsystems.com, sns.originsystems.com, 2 Name Servers included in Delegation: pns.originsystems.com, sns.originsystems.com, 2 Name Servers included in 2 Zone definitions: pns.originsystems.com, sns.originsystems.com, 1 Name Servers listed in SOA.Primary: o.kencheung.com.
AGood: Only one SOA.Primary Name Server found.: o.kencheung.com.
Error: SOA.Primary Name Server not included in the delegation set.: o.kencheung.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: 3 Name Servers, 2 different subnets (first Byte): 175., 202., 2 different subnets (first two Bytes): 175.45., 202.181., 2 different subnets (first three Bytes): 175.45.29., 202.181.231.
AGood: Name Server IPv4-addresses from different subnet found:
AGood: Nameserver supports TCP connections: 3 good Nameserver
AGood: Nameserver supports Echo Capitalization: 3 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 3 good Nameserver
Nameserver doesn't pass all EDNS-Checks: a.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: b.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: c.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: d.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: e.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: f.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: g.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: h.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: i.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: j.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: k.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: l.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: m.gtld-servers.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.
Nameserver doesn't pass all EDNS-Checks: o.kencheung.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: o.kencheung.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: o.kencheung.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: sns.originsystems.com / 202.181.231.85: OP100: ok. FLAGS: fatal timeout. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
AGood: All SOA have the same Serial Number
AGood: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create certificates

4. Content- and Performance-critical Checks

http://jdupdate.o.kencheung.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 103.251.113.49
500

Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 500 - 599, Server Error. Creating a Letsencrypt certificate via http-01 challenge can't work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
AGood: Every https result with status 200 has a minified Html-Content with a quota lower then 110 %.
https://jdupdate.o.kencheung.com/ 103.251.113.49
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
AInfo: No img element found, no alt attribute checked
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
http://jdupdate.o.kencheung.com/ 103.251.113.49
302

Warning: HSTS header sent via http has no effect
https://103.251.113.49/ 103.251.113.49
404
4.570 seconds
Warning: 404 needs more then one second
AInfo: Different Server-Headers found
ADuration: 163147 milliseconds, 163.147 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
jdupdate.o.kencheung.com
103.251.113.49
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
jdupdate.o.kencheung.com
103.251.113.49
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
SNI required 		Tls.1.2
no Tls.1.1
no Tls.1.0
no http/2 via ALPN
SNI required 		Tls.1.2
no Tls.1.1
no Tls.1.0


103.251.113.49
103.251.113.49
443
Certificate/chain invalid
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

103.251.113.49
103.251.113.49
443
Certificate/chain invalid
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
Cert sent without SNI 		Tls.1.2
no Tls.1.1
no Tls.1.0
no http/2 via ALPN
Cert sent without SNI 		Tls.1.2
no Tls.1.1
no Tls.1.0

 

9. Certificates

1.
1.
CN=cloud.o.kencheung.com
18.11.2021
16.02.2022
1021 days expired		cloud.o.kencheung.com, jdpush.o.kencheung.com, jdupdate.o.kencheung.com, push.joydeal.hk, update.joydeal.hk - 5 entries
1.
1.
CN=cloud.o.kencheung.com
18.11.2021

16.02.2022
1021 days expired


cloud.o.kencheung.com, jdpush.o.kencheung.com, jdupdate.o.kencheung.com, push.joydeal.hk, update.joydeal.hk - 5 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:0498B6A0B94CC024AA10D1DF7EF5366B2684
Thumbprint:22871D77A74396379B7881EADFBA6AF45B0E2221
SHA256 / Certificate:xA1YiW40MlezJDRaRr+kP7h3MhY6/pJ3h30zp9fwjs0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):a249f4999f88ed040e452884411509b64bf998d213ea8f97832004b362fa8ba1
SHA256 hex / Subject Public Key Information (SPKI):a249f4999f88ed040e452884411509b64bf998d213ea8f97832004b362fa8ba1 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://r3.o.lencr.org
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)




2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020
15.09.2025
expires in 286 days

2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020

15.09.2025
expires in 286 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:00912B084ACF0C18A753F6D62E25A75F5A
Thumbprint:A053375BFE84E8B748782C7CEE15827A6AF5A405
SHA256 / Certificate:Z63RFmsCCuYbj1/JaBPATCqliZYHloZVcqPH5zdhPf0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)




3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 3835 days

3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 3835 days




KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:008210CFB0D240E3594463E0BB63828B00
Thumbprint:CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:




2.
1.
CN=103.251.113.49: Self-signed certificate, O=Self-signed certificate, L=Hong Kong, S=HKSAR, C=HK
18.11.2021
19.11.2031
expires in 2542 days		103.251.113.49 - 1 entry
2.
1.
CN=103.251.113.49: Self-signed certificate, O=Self-signed certificate, L=Hong Kong, S=HKSAR, C=HK
18.11.2021

19.11.2031
expires in 2542 days


103.251.113.49 - 1 entry

KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:4054EC4A3A6A0EDBE5341AE42E19D4F1435BA70A
Thumbprint:A3FB0BC0D8B45A54015BD3F8186D04A5C6146D72
SHA256 / Certificate:iXmFkTTl9opseGdCOovHnFnI9XOS+v4j81ggBptShU4=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):c00202d9cab5c4cc4045ed8d70333c6aad4acb64e86a3c165ad18abae8fec335
SHA256 hex / Subject Public Key Information (SPKI):c00202d9cab5c4cc4045ed8d70333c6aad4acb64e86a3c165ad18abae8fec335 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:


UntrustedRoot: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.


 

10. Last Certificates - Certificate Transparency Log Check

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

Small Code Update - wait one minute

 

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

Small Code Update - wait one minute

 

11. Html-Content - Entries

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

 

12. Html-Parsing via https://validator.nu/ / https://validator.w3.org/nu/ (started 2024-09-28, 09:00, alpha)

  Unfortunately, there are differences between the first used validator.nu and validator.w3.org/nu/ - switched to validator.w3.org/nu/. Looks like some error messages (link - fetchpriority attribute) of validator.nu are obsolete, not seen in the w3.org-version and not found in the current specification: link may have a fetchpriority attribute.

Small Code update, wait one minute

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: pns.originsystems.com, sns.originsystems.com

 

QNr.DomainTypeNS used
1
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
2
pns.originsystems.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: ns2.originsystems.com, ns3.originsystems.com, ns4.originsystems.com

Answer: ns2.originsystems.com
175.45.29.174

Answer: ns3.originsystems.com
202.181.231.82

Answer: ns4.originsystems.com
202.181.231.85
3
sns.originsystems.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: ns2.originsystems.com, ns3.originsystems.com, ns4.originsystems.com

Answer: ns2.originsystems.com
175.45.29.174

Answer: ns3.originsystems.com
202.181.231.82

Answer: ns4.originsystems.com
202.181.231.85
4
pns.originsystems.com: 175.45.29.174, 202.181.231.82
A
ns2.originsystems.com (175.45.29.174)
5
pns.originsystems.com: No AAAA record found
AAAA
ns2.originsystems.com (175.45.29.174)
6
sns.originsystems.com: 202.181.231.85
A
ns2.originsystems.com (175.45.29.174)
7
sns.originsystems.com: No AAAA record found
AAAA
ns2.originsystems.com (175.45.29.174)

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
jdupdate.o.kencheung.com
0

no CAA entry found
1
0
o.kencheung.com
5
issue
letsencrypt.org
1
0
kencheung.com
5
issue
letsencrypt.org
1
0
com
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
o.kencheung.com
fjdakljcadkslcjadkls
ok
1
0
jdupdate.o.kencheung.com

ok
2
1
_acme-challenge.jdupdate.o.kencheung.com

Name Error - The domain name does not exist
2
1
_acme-challenge.jdupdate.o.kencheung.com.o.kencheung.com


1
0
_acme-challenge.jdupdate.o.kencheung.com.jdupdate.o.kencheung.com

Name Error - The domain name does not exist
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.

 

 

Permalink: https://check-your-website.server-daten.de/?i=e1c46060-3573-4009-872e-c7c78ccb1d72

 

Last Result: https://check-your-website.server-daten.de/?q=jdupdate.o.kencheung.com - 2022-01-24 08:48:05

 

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Jürgen Auer • Friedenstr. 37 • 10249 Berlin • +49(0)30 420 200 60 • info@sql-und-xml.de • USt-IdNr.: DE221734518

 

Errors, ideas, questions? Use the Contact form • A project using Server-Daten - Web Database solutions