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

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http sent over port 443

Checked:
24.11.2022 12:33:53

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1. IP-Addresses

Host	Type	IP-Address	is auth.	∑ Queries	∑ Timeout
ganztag-kja-duesseldorf.de	A	87.139.38.61 Cologne/North Rhine-Westphalia/Germany (DE) - Deutsche Telekom AG Hostname: p578b263d.dip0.t-ipconnect.de	yes	1	0
	AAAA		yes
www.ganztag-kja-duesseldorf.de	A	87.139.38.61 Cologne/North Rhine-Westphalia/Germany (DE) - Deutsche Telekom AG Hostname: p578b263d.dip0.t-ipconnect.de	yes	1	0
	AAAA		yes
*.ganztag-kja-duesseldorf.de	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 18733, 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: 11.12.2022, 00:00:00 +, Signature-Inception: 20.11.2022, 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: de
de	1 DS RR in the parent zone found


	DS with Algorithm 8, KeyTag 26755, DigestType 2 and Digest 80E1eAmllUMRzLgq3hFMbB1ySnXAOVE3qjl4A1Ql540=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner de., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 07.12.2022, 05:00:00 +, Signature-Inception: 24.11.2022, 04:00:00 +, KeyTag 18733, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 18733 used to validate the DS RRSet in the parent zone


	2 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 26755, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 31116, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner de., Algorithm: 8, 1 Labels, original TTL: 300 sec, Signature-expiration: 02.12.2022, 17:34:02 +, Signature-Inception: 18.11.2022, 16:04:02 +, KeyTag 26755, Signer-Name: de


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26755 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 26755, DigestType 2 and Digest "80E1eAmllUMRzLgq3hFMbB1ySnXAOVE3qjl4A1Ql540=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: ganztag-kja-duesseldorf.de
ganztag-kja-duesseldorf.de	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 "vk21v15fa3rc5d1ifihorr8f8jn8umfb" between the hashed NSEC3-owner "vk20ahj588ceduler8uqeuqjcpjs19e8" and the hashed NextOwner "vk249c6pu4g30a7iku2okl7pgu2qv9ng". So the parent zone confirmes the not-existence of a DS RR. Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner vk20ahj588ceduler8uqeuqjcpjs19e8.de., Algorithm: 8, 2 Labels, original TTL: 7200 sec, Signature-expiration: 05.12.2022, 05:43:23 +, Signature-Inception: 21.11.2022, 04:13:23 +, KeyTag 31116, Signer-Name: de


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "tjlb7qbojvmlf1s6gdriru7vsms1lg16" as Owner. That's the Hash of "de" with the NextHashedOwnerName "tjlfs98uj0vbvg6md2klgv0gi2gu6kj5". So that domain name is the Closest Encloser of "ganztag-kja-duesseldorf.de". Opt-Out: True. Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner tjlb7qbojvmlf1s6gdriru7vsms1lg16.de., Algorithm: 8, 2 Labels, original TTL: 7200 sec, Signature-expiration: 06.12.2022, 11:04:08 +, Signature-Inception: 22.11.2022, 09:34:08 +, KeyTag 31116, Signer-Name: de


	0 DNSKEY RR found




Zone: www.ganztag-kja-duesseldorf.de
www.ganztag-kja-duesseldorf.de	0 DS RR in the parent zone found

3. Name Servers

Domain	Nameserver	NS-IP
www.ganztag-kja-duesseldorf.de	• ns1099.ui-dns.org / dns-pub-de-fra-fr704.server.lan		•
ganztag-kja-duesseldorf.de	• ns1049.ui-dns.de / dns-pub-de-fra-fr701.server.lan	217.160.80.49 Karlsruhe/Baden-Wurttemberg/Germany (DE) - 1&1 IONOS SE	•
	•	2001:8d8:fe:53:0:d9a0:5031:100 Karlsruhe/Baden-Wurttemberg/Germany (DE) - 1&1 IONOS SE	•
	• ns1052.ui-dns.biz / dns-pub-de-fra-fr701.server.lan	217.160.81.52 Karlsruhe/Baden-Wurttemberg/Germany (DE) - 1&1 IONOS SE	•
	•	2001:8d8:fe:53:0:d9a0:5134:100 Karlsruhe/Baden-Wurttemberg/Germany (DE) - 1&1 IONOS SE	•
	• ns1059.ui-dns.com / dns-pub-de-fra-fr701.server.lan	217.160.82.59 Karlsruhe/Baden-Wurttemberg/Germany (DE) - 1&1 IONOS SE	•
	•	2001:8d8:fe:53:0:d9a0:523b:100 Karlsruhe/Baden-Wurttemberg/Germany (DE) - 1&1 IONOS SE	•
	• ns1099.ui-dns.org / dns-pub-de-fra-fr704.server.lan	217.160.83.99 Karlsruhe/Baden-Wurttemberg/Germany (DE) - 1&1 IONOS SE	•
	•	2001:8d8:fe:53:0:d9a0:5363:100 Karlsruhe/Baden-Wurttemberg/Germany (DE) - 1&1 IONOS SE	•
de	• a.nic.de / ns-1.de.de8.bind		•
	• f.nic.de / ns-2.de.de1		•
	• l.de.net / ns-1.de.fr1		•
	• n.de.net / s3.mtv		•
	• s.de.net / ns-3.de.de9		•
	• z.nic.de / ns-3.de.de2.bind		•

4. SOA-Entries

Domain:	de
Zone-Name:	de
Primary:	f.nic.de
Mail:	dns-operations.denic.de
Serial:	1669289510
Refresh:	7200
Retry:	7200
Expire:	3600000
TTL:	7200
num Entries:	5

Domain:	de
Zone-Name:	de
Primary:	f.nic.de
Mail:	dns-operations.denic.de
Serial:	1669289602
Refresh:	7200
Retry:	7200
Expire:	3600000
TTL:	7200
num Entries:	1

Domain:	ganztag-kja-duesseldorf.de
Zone-Name:	ganztag-kja-duesseldorf.de
Primary:	ns1099.ui-dns.org
Mail:	hostmaster.1und1.com
Serial:	2017060105
Refresh:	28800
Retry:	7200
Expire:	604800
TTL:	600
num Entries:	8

Domain:	www.ganztag-kja-duesseldorf.de
Zone-Name:	ganztag-kja-duesseldorf.de
Primary:	ns1099.ui-dns.org
Mail:	hostmaster.1und1.com
Serial:	2017060105
Refresh:	28800
Retry:	7200
Expire:	604800
TTL:	600
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

show header:

Domainname	Http-Status	redirect	Sec.	G
• http://ganztag-kja-duesseldorf.de/ 87.139.38.61	302	http://ganztag-kja-duesseldorf.de/login/de Html is minified: 115.32 %	0.660
Date: Thu, 24 Nov 2022 11:34:33 GMT
Server: Apache/2.4.29 (Ubuntu)
Set-Cookie: PHPSESSID=81kflmbf27nfvi71ggjtkam3vr; expires=Thu, 24-Nov-2022 13:04:33 GMT; Max-Age=5400; path=/; HttpOnly; SameSite=lax
Cache-Control: max-age=0, must-revalidate, private
Location: http://ganztag-kja-duesseldorf.de/login/de
Expires: Thu, 24 Nov 2022 11:34:33 GMT
Content-Length: 414
Connection: close
Content-Type: text/html; charset=UTF-8

• http://www.ganztag-kja-duesseldorf.de/ 87.139.38.61	302	http://www.ganztag-kja-duesseldorf.de/login/de Html is minified: 114.67 %	0.103
Date: Thu, 24 Nov 2022 11:34:34 GMT
Server: Apache/2.4.29 (Ubuntu)
Set-Cookie: PHPSESSID=ofhadsrfi5ifsi09dd6usqt5qc; expires=Thu, 24-Nov-2022 13:04:34 GMT; Max-Age=5400; path=/; HttpOnly; SameSite=lax
Cache-Control: max-age=0, must-revalidate, private
Location: http://www.ganztag-kja-duesseldorf.de/login/de
Expires: Thu, 24 Nov 2022 11:34:34 GMT
Content-Length: 430
Connection: close
Content-Type: text/html; charset=UTF-8

• http://ganztag-kja-duesseldorf.de/login/de	200	Html is minified: 133.75 %	0.677
Date: Thu, 24 Nov 2022 11:34:36 GMT
Server: Apache/2.4.29 (Ubuntu)
Set-Cookie: PHPSESSID=hgbgob2j3q751jch519f5un9oa; expires=Thu, 24-Nov-2022 13:04:36 GMT; Max-Age=5400; path=/; HttpOnly; SameSite=lax
Cache-Control: max-age=0, must-revalidate, private
Expires: Thu, 24 Nov 2022 11:34:36 GMT
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 2241
Connection: close
Content-Type: text/html; charset=UTF-8

• http://www.ganztag-kja-duesseldorf.de/login/de	200	Html is minified: 133.75 %	0.126
Date: Thu, 24 Nov 2022 11:34:37 GMT
Server: Apache/2.4.29 (Ubuntu)
Set-Cookie: PHPSESSID=olnnp9do9ib3jeurtqe2sd530p; expires=Thu, 24-Nov-2022 13:04:37 GMT; Max-Age=5400; path=/; HttpOnly; SameSite=lax
Cache-Control: max-age=0, must-revalidate, private
Expires: Thu, 24 Nov 2022 11:34:37 GMT
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 2241
Connection: close
Content-Type: text/html; charset=UTF-8

• https://ganztag-kja-duesseldorf.de/ 87.139.38.61	-4		0.133	W
SendFailure - The underlying connection was closed: An unexpected error occurred on a send.

• https://www.ganztag-kja-duesseldorf.de/ 87.139.38.61	-4		0.130	W
SendFailure - The underlying connection was closed: An unexpected error occurred on a send.

• http://ganztag-kja-duesseldorf.de:443/ 87.139.38.61	200	Html is minified: 223.78 %	0.120	Q
Visible Content: Apache2 Ubuntu Default Page It works! This is the default welcome page used to test the correct operation of the Apache2 server after installation on Ubuntu systems. It is based on the equivalent page on Debian, from which the Ubuntu Apache packaging is derived. If you can read this page, it means that the Apache HTTP server installed at this site is working properly. You should replace this file (located at /var/www/html/index.html ) before continuing to operate your HTTP server. If you are a normal user of this web site and don't know what this page is about, this probably means that the site is currently unavailable due to maintenance. If the problem persists, please contact the site's administrator. Configuration Overview Ubuntu's Apache2 default configuration is different from the upstream default configuration, and split into several files optimized for interaction with Ubuntu tools. The configuration system is fully documented in /usr/share/doc/apache2/README.Debian.gz . Refer to this for the full documentation. Documentation for the web server itself can be found by accessing the manual if the apache2-doc package was installed on this server. The configuration layout for an Apache2 web server installation on Ubuntu systems is as follows: /etc/apache2/ \|-- apache2.conf \| `-- ports.conf \|-- mods-enabled \| \|-- .load \| `-- .conf \|-- conf-enabled \| `-- .conf \|-- sites-enabled \| `-- .conf apache2.conf is the main configuration file. It puts the pieces together by including all remaining configuration files when starting up the web server. ports.conf is always included from the main configuration file. It is used to determine the listening ports for incoming connections, and this file can be customized anytime. Configuration files in the mods-enabled/ , conf-enabled/ and sites-enabled/ directories contain particular configuration snippets which manage modules, global configuration fragments, or virtual host configurations, respectively. They are activated by symlinking available configuration files from their respective *-available/ counterparts. These should be managed by using our helpers a2enmod, a2dismod, a2ensite, a2dissite, and a2enconf, a2disconf . See their respective man pages for detailed information. The binary is called apache2. Due to the use of environment variables, in the default configuration, apache2 needs to be started/stopped with /etc/init.d/apache2 or apache2ctl . Calling /usr/bin/apache2 directly will not work with the default configuration. Document Roots By default, Ubuntu does not allow access through the web browser to any file apart of those located in /var/www , public_html directories (when enabled) and /usr/share (for web applications). If your site is using a web document root located elsewhere (such as in /srv ) you may need to whitelist your document root directory in /etc/apache2/apache2.conf . The default Ubuntu document root is /var/www/html . You can make your own virtual hosts under /var/www. This is different to previous releases which provides better security out of the box. Reporting Problems Please use the ubuntu-bug tool to report bugs in the Apache2 package with Ubuntu. However, check existing bug reports before reporting a new bug. Please report bugs specific to modules (such as PHP and others) to respective packages, not to the web server itself.
Date: Thu, 24 Nov 2022 11:34:35 GMT
Server: Apache/2.4.29 (Ubuntu)
Last-Modified: Mon, 27 Jan 2020 09:33:56 GMT
ETag: "2aa6-59d1bce6f59bd-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 3138
Connection: close
Content-Type: text/html

• http://www.ganztag-kja-duesseldorf.de:443/ 87.139.38.61	200	Html is minified: 223.78 %	0.086	Q
Visible Content: Apache2 Ubuntu Default Page It works! This is the default welcome page used to test the correct operation of the Apache2 server after installation on Ubuntu systems. It is based on the equivalent page on Debian, from which the Ubuntu Apache packaging is derived. If you can read this page, it means that the Apache HTTP server installed at this site is working properly. You should replace this file (located at /var/www/html/index.html ) before continuing to operate your HTTP server. If you are a normal user of this web site and don't know what this page is about, this probably means that the site is currently unavailable due to maintenance. If the problem persists, please contact the site's administrator. Configuration Overview Ubuntu's Apache2 default configuration is different from the upstream default configuration, and split into several files optimized for interaction with Ubuntu tools. The configuration system is fully documented in /usr/share/doc/apache2/README.Debian.gz . Refer to this for the full documentation. Documentation for the web server itself can be found by accessing the manual if the apache2-doc package was installed on this server. The configuration layout for an Apache2 web server installation on Ubuntu systems is as follows: /etc/apache2/ \|-- apache2.conf \| `-- ports.conf \|-- mods-enabled \| \|-- .load \| `-- .conf \|-- conf-enabled \| `-- .conf \|-- sites-enabled \| `-- .conf apache2.conf is the main configuration file. It puts the pieces together by including all remaining configuration files when starting up the web server. ports.conf is always included from the main configuration file. It is used to determine the listening ports for incoming connections, and this file can be customized anytime. Configuration files in the mods-enabled/ , conf-enabled/ and sites-enabled/ directories contain particular configuration snippets which manage modules, global configuration fragments, or virtual host configurations, respectively. They are activated by symlinking available configuration files from their respective *-available/ counterparts. These should be managed by using our helpers a2enmod, a2dismod, a2ensite, a2dissite, and a2enconf, a2disconf . See their respective man pages for detailed information. The binary is called apache2. Due to the use of environment variables, in the default configuration, apache2 needs to be started/stopped with /etc/init.d/apache2 or apache2ctl . Calling /usr/bin/apache2 directly will not work with the default configuration. Document Roots By default, Ubuntu does not allow access through the web browser to any file apart of those located in /var/www , public_html directories (when enabled) and /usr/share (for web applications). If your site is using a web document root located elsewhere (such as in /srv ) you may need to whitelist your document root directory in /etc/apache2/apache2.conf . The default Ubuntu document root is /var/www/html . You can make your own virtual hosts under /var/www. This is different to previous releases which provides better security out of the box. Reporting Problems Please use the ubuntu-bug tool to report bugs in the Apache2 package with Ubuntu. However, check existing bug reports before reporting a new bug. Please report bugs specific to modules (such as PHP and others) to respective packages, not to the web server itself.
Date: Thu, 24 Nov 2022 11:34:36 GMT
Server: Apache/2.4.29 (Ubuntu)
Last-Modified: Mon, 27 Jan 2020 09:33:56 GMT
ETag: "2aa6-59d1bce6f59bd-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 3138
Connection: close
Content-Type: text/html

• http://ganztag-kja-duesseldorf.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 87.139.38.61 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 1/332	404	Html is minified: 224.62 % Other inline scripts (∑/total): 0/0	0.660	A
Not Found
Visible Content: Oops! An Error Occurred The server returned a "404 Not Found". Something is broken. Please let us know what you were doing when this error occurred. We will fix it as soon as possible. Sorry for any inconvenience caused.
Date: Thu, 24 Nov 2022 11:34:34 GMT
Server: Apache/2.4.29 (Ubuntu)
Cache-Control: no-cache, private
Content-Length: 894
Connection: close
Content-Type: text/html; charset=UTF-8

• http://www.ganztag-kja-duesseldorf.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 87.139.38.61 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 1/332	404	Html is minified: 224.62 % Other inline scripts (∑/total): 0/0	0.664	A
Not Found
Visible Content: Oops! An Error Occurred The server returned a "404 Not Found". Something is broken. Please let us know what you were doing when this error occurred. We will fix it as soon as possible. Sorry for any inconvenience caused.
Date: Thu, 24 Nov 2022 11:34:35 GMT
Server: Apache/2.4.29 (Ubuntu)
Cache-Control: no-cache, private
Content-Length: 894
Connection: close
Content-Type: text/html; charset=UTF-8

• https://87.139.38.61/ 87.139.38.61	-4		0.130	W
SendFailure - The underlying connection was closed: An unexpected error occurred on a send.

7. Comments

	1. General Results, most used to calculate the result
A	name "ganztag-kja-duesseldorf.de" is domain, public suffix is ".de", top-level-domain is ".de", top-level-domain-type is "country-code", Country is Germany, tld-manager is "DENIC eG", num .de-domains preloaded: 8467 (complete: 210599)
A	Good: All ip addresses are public addresses
	Warning: Only one ip address found: ganztag-kja-duesseldorf.de has only one ip address.
	Warning: Only one ip address found: www.ganztag-kja-duesseldorf.de 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: ganztag-kja-duesseldorf.de has no ipv6 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: www.ganztag-kja-duesseldorf.de has no ipv6 address.
A	Good: 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.
A	Good: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):4 complete Content-Type - header (6 urls)
	http://ganztag-kja-duesseldorf.de:443/ 87.139.38.61			Url with incomplete Content-Type - header - missing charset
	http://www.ganztag-kja-duesseldorf.de:443/ 87.139.38.61			Url with incomplete Content-Type - header - missing charset
	http://ganztag-kja-duesseldorf.de/ 87.139.38.61	302	PHPSESSID=81kflmbf27nfvi71ggjtkam3vr; expires=Thu, 24-Nov-2022 13:04:33 GMT; Max-Age=5400; path=/; HttpOnly; SameSite=lax	Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative.
	http://ganztag-kja-duesseldorf.de/login/de	200	PHPSESSID=hgbgob2j3q751jch519f5un9oa; expires=Thu, 24-Nov-2022 13:04:36 GMT; Max-Age=5400; path=/; HttpOnly; SameSite=lax	Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative.
	http://www.ganztag-kja-duesseldorf.de/ 87.139.38.61	302	PHPSESSID=ofhadsrfi5ifsi09dd6usqt5qc; expires=Thu, 24-Nov-2022 13:04:34 GMT; Max-Age=5400; path=/; HttpOnly; SameSite=lax	Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative.
	http://www.ganztag-kja-duesseldorf.de/login/de	200	PHPSESSID=olnnp9do9ib3jeurtqe2sd530p; expires=Thu, 24-Nov-2022 13:04:37 GMT; Max-Age=5400; path=/; HttpOnly; SameSite=lax	Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative.
H	Fatal error: No https - result with http-status 200, no encryption
H	Fatal error: http result with http-status 200, no encryption. Add a redirect http ⇒ https, so every connection is secure. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop.
Q	http://ganztag-kja-duesseldorf.de:443/ 87.139.38.61	200		Misconfiguration: http sent over port 443. Wrong port forwarding port 443 to port 80 or wrong vHost definition. If you use a virtual Host <VirtualHost ip-address:443>, try <VirtualHost *:443>.
Q	http://www.ganztag-kja-duesseldorf.de:443/ 87.139.38.61	200		Misconfiguration: http sent over port 443. Wrong port forwarding port 443 to port 80 or wrong vHost definition. If you use a virtual Host <VirtualHost ip-address:443>, try <VirtualHost *:443>.
	Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain ganztag-kja-duesseldorf.de, 1 ip addresses.
	Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain www.ganztag-kja-duesseldorf.de, 1 ip addresses.
B	No _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.ganztag-kja-duesseldorf.de
	2. Header-Checks
U				No https result with http status 2 or 4 (standard-check) found, no header checked.
	3. DNS- and NameServer - Checks
A	Info:: 52 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
A	Info:: 52 Queries complete, 51 with IPv6, 1 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.
	Bad (greater 8):: An average of 13.0 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 4 different Name Servers found: ns1049.ui-dns.de, ns1052.ui-dns.biz, ns1059.ui-dns.com, ns1099.ui-dns.org, 4 Name Servers included in Delegation: ns1049.ui-dns.de, ns1052.ui-dns.biz, ns1059.ui-dns.com, ns1099.ui-dns.org, 4 Name Servers included in 1 Zone definitions: ns1049.ui-dns.de, ns1052.ui-dns.biz, ns1059.ui-dns.com, ns1099.ui-dns.org, 1 Name Servers listed in SOA.Primary: ns1099.ui-dns.org.
A	Good: Only one SOA.Primary Name Server found.: ns1099.ui-dns.org.
A	Good: SOA.Primary Name Server included in the delegation set.: ns1099.ui-dns.org.
A	Good: 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: ns1049.ui-dns.de, ns1052.ui-dns.biz, ns1059.ui-dns.com, ns1099.ui-dns.org
A	Good: All Name Server Domain Names have a Public Suffix.
A	Good: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
A	Good: All Name Server ip addresses are public.
A	Good: Minimal 2 different name servers (public suffix and public ip address) found: 4 different Name Servers found
A	Good: All name servers have ipv4- and ipv6-addresses.: 4 different Name Servers found
A	Good: Name servers with different Top Level Domains / Public Suffix List entries found: 4 Name Servers, 4 Top Level Domains: de, org, com, biz
A	Good: Name Servers with different domain names found.: 4 different Domains found
	Warning: All Name Servers from the same Country / IP location.: 4 Name Servers, 1 Countries: DE
A	Info: Ipv4-Subnet-list: 4 Name Servers, 1 different subnets (first Byte): 217., 1 different subnets (first two Bytes): 217.160., 4 different subnets (first three Bytes): 217.160.80., 217.160.81., 217.160.82., 217.160.83.
A	Good: Name Server IPv4-addresses from different subnet found:
A	Info: IPv6-Subnet-list: 4 Name Servers with IPv6, 1 different subnets (first block): 2001:, 1 different subnets (first two blocks): 2001:08d8:, 1 different subnets (first three blocks): 2001:08d8:00fe:, 1 different subnets (first four blocks): 2001:08d8:00fe:0053:
	Fatal: All Name Server IPv6 addresses from the same subnet.
A	Good: Nameserver supports TCP connections: 8 good Nameserver
A	Good: Nameserver supports Echo Capitalization: 8 good Nameserver
A	Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 8 good Nameserver
A	Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 8 good Nameserver
A	Good: 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
A	Good: All checks /.well-known/acme-challenge/random-filename without redirects answer with the expected http status 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge should work. If it doesn't work: Check your vHost configuration (apachectl -S, httpd -S, nginx -T). Every combination of port and ServerName / ServerAlias (Apache) or Server (Nginx) must be unique. Merge duplicated entries in one vHost. If you use an IIS, extensionless files must be allowed in the /.well-known/acme-challenge subdirectory. Create a web.config in that directory. Content: <configuration><system.webServer><staticContent><mimeMap fileExtension="." mimeType="text/plain" /></staticContent></system.webServer></configuration>. If you have a redirect http ⇒ https, that's ok, Letsencrypt follows such redirects to port 80 / 443 (same or other server). There must be a certificate. But the certificate may be expired, self signed or with a not matching domain name. Checking the validation file Letsencrypt ignores such certificate errors. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
A	Good: All checked attribute values are enclosed in quotation marks (" or ').
A	Info: No img element found, no alt attribute checked
A	Good: 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
A	Duration: 67006 milliseconds, 67.006 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

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.w3.org/nu/

Small Code update, wait one minute

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns1049.ui-dns.de, ns1052.ui-dns.biz, ns1059.ui-dns.com, ns1099.ui-dns.org

QNr.	Domain	Type	NS used
1	de	NS	h.root-servers.net (2001:500:1::53)
	Answer: a.nic.de, f.nic.de, l.de.net, n.de.net, s.de.net, z.nic.de
2	ns1049.ui-dns.de	NS	a.nic.de (2001:678:2::53)
	Answer: ns-de.ui-dns.biz, ns-de.ui-dns.com, ns-de.ui-dns.de, ns-de.ui-dns.org
	Answer: ns-de.ui-dns.de 2001:8d8:fe:53:0:d9a0:50c1:100, 217.160.80.193
3	biz	NS	e.root-servers.net (2001:500:a8::e)
	Answer: a.gtld.biz, b.gtld.biz, c.gtld.biz, w.gtld.biz, x.gtld.biz, y.gtld.biz
4	ns1052.ui-dns.biz	NS	a.gtld.biz (2001:502:ad09::30)
	Answer: ns-biz.ui-dns.biz, ns-biz.ui-dns.com, ns-biz.ui-dns.de, ns-biz.ui-dns.org
	Answer: ns-biz.ui-dns.biz 2001:8d8:fe:53:0:d9a0:51c3:100, 217.160.81.195
5	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
6	ns1059.ui-dns.com	NS	b.gtld-servers.net (2001:503:231d::2:30)
	Answer: ns-com.ui-dns.biz, ns-com.ui-dns.com, ns-com.ui-dns.de, ns-com.ui-dns.org
	Answer: ns-com.ui-dns.com 2001:8d8:fe:53:0:d9a0:52c2:100, 217.160.82.194
7	org	NS	d.root-servers.net (199.7.91.13)
	Answer: a0.org.afilias-nst.info, a2.org.afilias-nst.info, b0.org.afilias-nst.org, b2.org.afilias-nst.org, c0.org.afilias-nst.info, d0.org.afilias-nst.org
8	ns1099.ui-dns.org	NS	a0.org.afilias-nst.info (2001:500:e::1)
	Answer: ns-org.ui-dns.biz, ns-org.ui-dns.com, ns-org.ui-dns.de, ns-org.ui-dns.org
	Answer: ns-org.ui-dns.org 2001:8d8:fe:53:0:d9a0:53c4:100, 217.160.83.196
9	ns-de.ui-dns.biz	NS	a.gtld.biz (2001:502:ad09::30)
	Answer: ns-biz.ui-dns.biz, ns-biz.ui-dns.com, ns-biz.ui-dns.de, ns-biz.ui-dns.org
	Answer: ns-biz.ui-dns.biz 2001:8d8:fe:53:0:d9a0:51c3:100, 217.160.81.195
10	ns-de.ui-dns.com	NS	b.gtld-servers.net (2001:503:231d::2:30)
	Answer: ns-com.ui-dns.biz, ns-com.ui-dns.com, ns-com.ui-dns.de, ns-com.ui-dns.org
	Answer: ns-com.ui-dns.com 2001:8d8:fe:53:0:d9a0:52c2:100, 217.160.82.194
11	ns-de.ui-dns.org	NS	a0.org.afilias-nst.info (2001:500:e::1)
	Answer: ns-org.ui-dns.biz, ns-org.ui-dns.com, ns-org.ui-dns.de, ns-org.ui-dns.org
	Answer: ns-org.ui-dns.org 2001:8d8:fe:53:0:d9a0:53c4:100, 217.160.83.196
12	ns-biz.ui-dns.com	NS	b.gtld-servers.net (2001:503:231d::2:30)
	Answer: ns-com.ui-dns.biz, ns-com.ui-dns.com, ns-com.ui-dns.de, ns-com.ui-dns.org
	Answer: ns-com.ui-dns.com 2001:8d8:fe:53:0:d9a0:52c2:100, 217.160.82.194
13	ns-biz.ui-dns.de	NS	a.nic.de (2001:678:2::53)
	Answer: ns-de.ui-dns.biz, ns-de.ui-dns.com, ns-de.ui-dns.de, ns-de.ui-dns.org
	Answer: ns-de.ui-dns.de 2001:8d8:fe:53:0:d9a0:50c1:100, 217.160.80.193
14	ns-biz.ui-dns.org	NS	a0.org.afilias-nst.info (2001:500:e::1)
	Answer: ns-org.ui-dns.biz, ns-org.ui-dns.com, ns-org.ui-dns.de, ns-org.ui-dns.org
	Answer: ns-org.ui-dns.org 2001:8d8:fe:53:0:d9a0:53c4:100, 217.160.83.196
15	ns-com.ui-dns.biz	NS	a.gtld.biz (2001:502:ad09::30)
	Answer: ns-biz.ui-dns.biz, ns-biz.ui-dns.com, ns-biz.ui-dns.de, ns-biz.ui-dns.org
	Answer: ns-biz.ui-dns.biz 2001:8d8:fe:53:0:d9a0:51c3:100, 217.160.81.195
16	ns-com.ui-dns.de	NS	a.nic.de (2001:678:2::53)
	Answer: ns-de.ui-dns.biz, ns-de.ui-dns.com, ns-de.ui-dns.de, ns-de.ui-dns.org
	Answer: ns-de.ui-dns.de 2001:8d8:fe:53:0:d9a0:50c1:100, 217.160.80.193
17	ns-com.ui-dns.org	NS	a0.org.afilias-nst.info (2001:500:e::1)
	Answer: ns-org.ui-dns.biz, ns-org.ui-dns.com, ns-org.ui-dns.de, ns-org.ui-dns.org
	Answer: ns-org.ui-dns.org 2001:8d8:fe:53:0:d9a0:53c4:100, 217.160.83.196
18	ns-org.ui-dns.biz	NS	a.gtld.biz (2001:502:ad09::30)
	Answer: ns-biz.ui-dns.biz, ns-biz.ui-dns.com, ns-biz.ui-dns.de, ns-biz.ui-dns.org
	Answer: ns-biz.ui-dns.biz 2001:8d8:fe:53:0:d9a0:51c3:100, 217.160.81.195
19	ns-org.ui-dns.com	NS	b.gtld-servers.net (2001:503:231d::2:30)
	Answer: ns-com.ui-dns.biz, ns-com.ui-dns.com, ns-com.ui-dns.de, ns-com.ui-dns.org
	Answer: ns-com.ui-dns.com 2001:8d8:fe:53:0:d9a0:52c2:100, 217.160.82.194
20	ns-org.ui-dns.de	NS	a.nic.de (2001:678:2::53)
	Answer: ns-de.ui-dns.biz, ns-de.ui-dns.com, ns-de.ui-dns.de, ns-de.ui-dns.org
	Answer: ns-de.ui-dns.de 2001:8d8:fe:53:0:d9a0:50c1:100, 217.160.80.193
21	ns-de.ui-dns.biz: 217.160.81.193	A	ns-biz.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c3:100)
22	ns-de.ui-dns.biz: 2001:8d8:fe:53:0:d9a0:51c1:100	AAAA	ns-biz.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c3:100)
23	ns-de.ui-dns.com: 217.160.82.193	A	ns-com.ui-dns.com (2001:8d8:fe:53:0:d9a0:52c2:100)
24	ns-de.ui-dns.com: 2001:8d8:fe:53:0:d9a0:52c1:100	AAAA	ns-com.ui-dns.com (2001:8d8:fe:53:0:d9a0:52c2:100)
25	ns-de.ui-dns.org: 217.160.83.193	A	ns-org.ui-dns.org (2001:8d8:fe:53:0:d9a0:53c4:100)
26	ns-de.ui-dns.org: 2001:8d8:fe:53:0:d9a0:53c1:100	AAAA	ns-org.ui-dns.org (2001:8d8:fe:53:0:d9a0:53c4:100)
27	ns-biz.ui-dns.com: 217.160.82.195	A	ns-com.ui-dns.com (2001:8d8:fe:53:0:d9a0:52c2:100)
28	ns-biz.ui-dns.com: 2001:8d8:fe:53:0:d9a0:52c3:100	AAAA	ns-com.ui-dns.com (2001:8d8:fe:53:0:d9a0:52c2:100)
29	ns-biz.ui-dns.de: 185.132.32.195, 217.160.80.195	A	ns-de.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c1:100)
30	ns-biz.ui-dns.de: 2001:8d8:fe:53:0:d9a0:50c3:100, 2607:f1c0:fe:53:185:132:32:195	AAAA	ns-de.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c1:100)
31	ns-biz.ui-dns.org: 217.160.83.195	A	ns-org.ui-dns.org (2001:8d8:fe:53:0:d9a0:53c4:100)
32	ns-biz.ui-dns.org: 2001:8d8:fe:53:0:d9a0:53c3:100	AAAA	ns-org.ui-dns.org (2001:8d8:fe:53:0:d9a0:53c4:100)
33	ns-com.ui-dns.biz: 217.160.81.194	A	ns-biz.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c3:100)
34	ns-com.ui-dns.biz: 2001:8d8:fe:53:0:d9a0:51c2:100	AAAA	ns-biz.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c3:100)
35	ns-com.ui-dns.de: 185.132.32.194, 217.160.80.194	A	ns-de.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c1:100)
36	ns-com.ui-dns.de: 2001:8d8:fe:53:0:d9a0:50c2:100, 2607:f1c0:fe:53:185:132:32:194	AAAA	ns-de.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c1:100)
37	ns-com.ui-dns.org: 217.160.83.194	A	ns-org.ui-dns.org (2001:8d8:fe:53:0:d9a0:53c4:100)
38	ns-com.ui-dns.org: 2001:8d8:fe:53:0:d9a0:53c2:100	AAAA	ns-org.ui-dns.org (2001:8d8:fe:53:0:d9a0:53c4:100)
39	ns-org.ui-dns.biz: 217.160.81.196	A	ns-biz.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c3:100)
40	ns-org.ui-dns.biz: 2001:8d8:fe:53:0:d9a0:51c4:100	AAAA	ns-biz.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c3:100)
41	ns-org.ui-dns.com: 217.160.82.196	A	ns-com.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c2:100)
42	ns-org.ui-dns.com: 2001:8d8:fe:53:0:d9a0:52c4:100	AAAA	ns-com.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c2:100)
43	ns-org.ui-dns.de: 217.160.80.196	A	ns-de.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c1:100)
44	ns-org.ui-dns.de: 2001:8d8:fe:53:0:d9a0:50c4:100	AAAA	ns-de.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c1:100)
45	ns1049.ui-dns.de: 217.160.80.49	A	ns-de.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c1:100)
46	ns1049.ui-dns.de: 2001:8d8:fe:53:0:d9a0:5031:100	AAAA	ns-de.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c1:100)
47	ns1052.ui-dns.biz: 217.160.81.52	A	ns-biz.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c3:100)
48	ns1052.ui-dns.biz: 2001:8d8:fe:53:0:d9a0:5134:100	AAAA	ns-biz.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c3:100)
49	ns1059.ui-dns.com: 217.160.82.59	A	ns-com.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c2:100)
50	ns1059.ui-dns.com: 2001:8d8:fe:53:0:d9a0:523b:100	AAAA	ns-com.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c2:100)
51	ns1099.ui-dns.org: 217.160.83.99	A	ns-org.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c4:100)
52	ns1099.ui-dns.org: 2001:8d8:fe:53:0:d9a0:5363:100	AAAA	ns-org.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c4:100)

14. CAA - Entries

Domainname	Value	∑ Queries
www.ganztag-kja-duesseldorf.de	no CAA entry found	1
ganztag-kja-duesseldorf.de	no CAA entry found	1
de	no CAA entry found	1

15. TXT - Entries

Domainname	Status	∑ Queries
ganztag-kja-duesseldorf.de	ok	1
www.ganztag-kja-duesseldorf.de	ok	1
_acme-challenge.ganztag-kja-duesseldorf.de	Name Error - The domain name does not exist	1
_acme-challenge.www.ganztag-kja-duesseldorf.de	Name Error - The domain name does not exist	1
_acme-challenge.ganztag-kja-duesseldorf.de.ganztag-kja-duesseldorf.de	Name Error - The domain name does not exist	1
_acme-challenge.www.ganztag-kja-duesseldorf.de.ganztag-kja-duesseldorf.de	Name Error - The domain name does not exist	1
_acme-challenge.www.ganztag-kja-duesseldorf.de.www.ganztag-kja-duesseldorf.de	Name Error - The domain name does not exist	1

16. DomainService - Entries

Type		Domain	Pref	Value	num Answers	Status
MX		ganztag-kja-duesseldorf.de	10	mx01.ionos.de	2	ok
	A			217.72.192.67	1	ok
	CNAME				0	ok
MX		ganztag-kja-duesseldorf.de	10	mx00.ionos.de	2	ok
	A			212.227.15.41	1	ok
	CNAME				0	ok

17. Cipher Suites

No results

18. Portchecks

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

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