1. General Results, most used to calculate the result A name "ghosthouse-nordhausen.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: 8783 (complete: 220007) A Good: All ip addresses are public addresses Warning: Only one ip address found: ghosthouse-nordhausen.de has only one ip address. Warning: Only one ip address found: www.ghosthouse-nordhausen.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: ghosthouse-nordhausen.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.ghosthouse-nordhausen.de has no ipv6 address. A Good: No cookie sent via http. 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: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset) B https://ghosthouse-nordhausen.de:843/ 85.214.134.133 Missing HSTS-Header B https://www.ghosthouse-nordhausen.de/ Missing HSTS-Header B https://www.ghosthouse-nordhausen.de:843/ 85.214.134.133 Missing HSTS-Header C Error - no version with Http-Status 200 H Fatal error: No https - result with http-status 200, no encryption M http://ghosthouse-nordhausen.de:843/ 85.214.134.133 Misconfiguration - main pages should never send http status 400 - 499 M http://www.ghosthouse-nordhausen.de:843/ 85.214.134.133 Misconfiguration - main pages should never send http status 400 - 499 N https://85.214.134.133:843/ 85.214.134.133 Error - Certificate isn't trusted, RemoteCertificateNameMismatch O ghosthouse-nordhausen.de / 85.214.134.133 / 843 Old connection: Cipher Suites without Forward Secrecy (FS) found. Remove all of these Cipher Suites, use only Cipher Suites with Forward Secrecy: Starting with ECDHE- or DHE - the last "E" says: "ephemeral". Or use Tls.1.3, then all Cipher Suites use FS. 6 Cipher Suites without Forward Secrecy found O www.ghosthouse-nordhausen.de / 85.214.134.133 / 843 Old connection: Cipher Suites without Forward Secrecy (FS) found. Remove all of these Cipher Suites, use only Cipher Suites with Forward Secrecy: Starting with ECDHE- or DHE - the last "E" says: "ephemeral". Or use Tls.1.3, then all Cipher Suites use FS. 6 Cipher Suites without Forward Secrecy found 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 the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain ghosthouse-nordhausen.de, 1 ip addresses, 1 different http results. 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 the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain www.ghosthouse-nordhausen.de, 1 ip addresses, 1 different http results. 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.ghosthouse-nordhausen.de 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 A Info:: 19 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers. A Info:: 19 Queries complete, 19 with IPv6, 0 with IPv4. A Good: All DNS Queries done via IPv6. A Good: 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.my-vhost4you.de (85.214.134.133), ns1.my-vhost4you.de (85.214.134.133) Ok (4 - 8):: An average of 4.8 queries per domain name server required to find all ip addresses of all name servers. A Info:: 4 different Name Servers found: c.ns.buddyns.com, ns1.my-vhost4you.de, ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com, 2 Name Servers included in Delegation: c.ns.buddyns.com, ns1.my-vhost4you.de, 3 Name Servers included in 1 Zone definitions: ns1.my-vhost4you.de, ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com, 1 Name Servers listed in SOA.Primary: ns1.my-vhost4you.de. A Good: Only one SOA.Primary Name Server found.: ns1.my-vhost4you.de. A Good: SOA.Primary Name Server included in the delegation set.: ns1.my-vhost4you.de. X Fatal: 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: c.ns.buddyns.com (116.203.6.3): Delegation: c.ns.buddyns.com, ns1.my-vhost4you.de, Zone: ns1.my-vhost4you.de, ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. Name Servers defined in Delegation, missing in Zone: c.ns.buddyns.com.Name Servers defined in Zone, missing in Delegation: ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. X Fatal: 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: c.ns.buddyns.com (2a01:4f8:1c0c:8115::3): Delegation: c.ns.buddyns.com, ns1.my-vhost4you.de, Zone: ns1.my-vhost4you.de, ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. Name Servers defined in Delegation, missing in Zone: c.ns.buddyns.com.Name Servers defined in Zone, missing in Delegation: ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. X Fatal: 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: ns1.my-vhost4you.de (85.214.134.133): Delegation: c.ns.buddyns.com, ns1.my-vhost4you.de, Zone: ns1.my-vhost4you.de, ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. Name Servers defined in Delegation, missing in Zone: c.ns.buddyns.com.Name Servers defined in Zone, missing in Delegation: ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. X Fatal: 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: ns2.my-vhost4you.de (85.215.92.77): Delegation: c.ns.buddyns.com, ns1.my-vhost4you.de, Zone: ns1.my-vhost4you.de, ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. Name Servers defined in Delegation, missing in Zone: c.ns.buddyns.com.Name Servers defined in Zone, missing in Delegation: ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. X Fatal: 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com (116.203.6.3): Delegation: c.ns.buddyns.com, ns1.my-vhost4you.de, Zone: ns1.my-vhost4you.de, ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. Name Servers defined in Delegation, missing in Zone: c.ns.buddyns.com.Name Servers defined in Zone, missing in Delegation: ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. X Fatal: 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com (2a01:4f8:1c0c:8115::3): Delegation: c.ns.buddyns.com, ns1.my-vhost4you.de, Zone: ns1.my-vhost4you.de, ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. Name Servers defined in Delegation, missing in Zone: c.ns.buddyns.com.Name Servers defined in Zone, missing in Delegation: ns2.my-vhost4you.de, uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com. 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: Some Name Servers have IPv6 addresses: 2 Name Servers with IPv6 found (2 Name Servers without IPv6) A Good: Name servers with different Top Level Domains / Public Suffix List entries found: 4 Name Servers, 2 Top Level Domains: de, com A Good: Name Servers with different domain names found.: 2 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, 2 different subnets (first Byte): 116., 85., 3 different subnets (first two Bytes): 116.203., 85.214., 85.215., 3 different subnets (first three Bytes): 116.203.6., 85.214.134., 85.215.92. A Good: Name Server IPv4-addresses from different subnet found: A Info: IPv6-Subnet-list: 2 Name Servers with IPv6, 1 different subnets (first block): 2a01:, 1 different subnets (first two blocks): 2a01:04f8:, 1 different subnets (first three blocks): 2a01:04f8:1c0c:, 1 different subnets (first four blocks): 2a01:04f8:1c0c:8115: Fatal: All Name Server IPv6 addresses from the same subnet. A Info: Nameserver mit different domain names found. May be a problem with DNS-Updates A Good: Nameserver supports TCP connections: 6 good Nameserver A Good: Nameserver supports Echo Capitalization: 6 good Nameserver A Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 6 good Nameserver Nameserver doesn't pass all EDNS-Checks: c.ns.buddyns.com / 116.203.6.3: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: ok (c.ns.buddyns.com). COOKIE: fatal timeout. CLIENTSUBNET: ok. Nameserver doesn't pass all EDNS-Checks: c.ns.buddyns.com / 2a01:4f8:1c0c:8115::3: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: ok (c.ns.buddyns.com). COOKIE: ok. CLIENTSUBNET: ok. Nameserver doesn't pass all EDNS-Checks: uz5x36jqv06q5yulzwcblfzcrk1b479xdttdm1nrgfglzs57bmctl8.free.ns.buddyns.com / 116.203.6.3: OP100: ok. FLAGS: ok. V1: fatal timeout. V1OP100: ok. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: ok. NSID: ok (c.ns.buddyns.com). COOKIE: ok. CLIENTSUBNET: ok. A Good: All SOA have the same Serial Number A Good: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create certificates 4. Content- and Performance-critical Checks http://ghosthouse-nordhausen.de:843/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 85.214.134.133 Fatal: Check of /.well-known/acme-challenge/random-filename has a http status between 400 and 499, but not 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge may not work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://www.ghosthouse-nordhausen.de:843/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 85.214.134.133 Fatal: Check of /.well-known/acme-challenge/random-filename has a http status between 400 and 499, but not 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge may not work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. 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 Info: Different Server-Headers found A Duration: 248160 milliseconds, 248.160 seconds