| 1. General Results, most used to calculate the result |
| A | name "merlin-memorial.de" is domain, public suffix is "de", top-level-domain-type is "country-code", Country is Germany, tld-manager is "DENIC eG"
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| A | Good: All ip addresses are public addresses
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| A | Good: No asked Authoritative Name Server had a timeout
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| A | https://merlin-memorial.de/ 5.189.136.46
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| Good: Valid DANE - entry found: signed Data _443._tcp.merlin-memorial.de: CertUsage 2 (DANE-TA, Trust anchor assertion), Selector 0 (Cert, Full certificate), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d confirms the Certificate with the same value
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| A | https://merlin-memorial.de/ 185.228.136.144
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| Good: Valid DANE - entry found: signed Data _443._tcp.merlin-memorial.de: CertUsage 2 (DANE-TA, Trust anchor assertion), Selector 0 (Cert, Full certificate), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d confirms the Certificate with the same value
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| A | https://merlin-memorial.de/ 2a02:c207:3002:7375::1
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| Good: Valid DANE - entry found: signed Data _443._tcp.merlin-memorial.de: CertUsage 2 (DANE-TA, Trust anchor assertion), Selector 0 (Cert, Full certificate), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d confirms the Certificate with the same value
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| A | https://merlin-memorial.de/ 2a03:4000:23:8c::1
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| Good: Valid DANE - entry found: signed Data _443._tcp.merlin-memorial.de: CertUsage 2 (DANE-TA, Trust anchor assertion), Selector 0 (Cert, Full certificate), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d confirms the Certificate with the same value
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| A | https://merlin-memorial.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
|
| Good: Valid DANE - entry found: signed Data _443._tcp.merlin-memorial.de: CertUsage 2 (DANE-TA, Trust anchor assertion), Selector 0 (Cert, Full certificate), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d confirms the Certificate with the same value
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| A | Good: destination is https
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| A | Good - only one version with Http-Status 200
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| A | Good: one preferred version: non-www is preferred
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| A | Good: every https has a Strict Transport Security Header
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| A | Good: HSTS max-age is long enough, 31536000 seconds = 365 days
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| A | Good: HSTS has includeSubdomains - directive
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| A | Good: HSTS has preload directive
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| A | Excellent: Domain is in the Google-Preload-List
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| A | Excellent: Domain is in the Mozilla/Firefox-Preload-List
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| A | HSTS-Preload-Status: Preloaded. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
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| A | Good: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):1 complete Content-Type - header (5 urls)
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| https://merlin-memorial.de/ 5.189.136.46
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| Url with incomplete Content-Type - header - missing charset
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| https://merlin-memorial.de/ 185.228.136.144
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| Url with incomplete Content-Type - header - missing charset
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| https://merlin-memorial.de/ 2a02:c207:3002:7375::1
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| Url with incomplete Content-Type - header - missing charset
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| https://merlin-memorial.de/ 2a03:4000:23:8c::1
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| Url with incomplete Content-Type - header - missing charset
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| A | http://merlin-memorial.de/ 5.189.136.46
| https://merlin-memorial.de/
| Correct redirect http - https with the same domain name
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| A | http://merlin-memorial.de/ 185.228.136.144
| https://merlin-memorial.de/
| Correct redirect http - https with the same domain name
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| A | http://merlin-memorial.de/ 2a02:c207:3002:7375::1
| https://merlin-memorial.de/
| Correct redirect http - https with the same domain name
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| A | http://merlin-memorial.de/ 2a03:4000:23:8c::1
| https://merlin-memorial.de/
| Correct redirect http - https with the same domain name
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| A | http://www.merlin-memorial.de/ 5.189.136.46
| https://www.merlin-memorial.de/
| Correct redirect http - https with the same domain name
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| A | http://www.merlin-memorial.de/ 185.228.136.144
| https://www.merlin-memorial.de/
| Correct redirect http - https with the same domain name
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| A | http://www.merlin-memorial.de/ 2a02:c207:3002:7375::1
| https://www.merlin-memorial.de/
| Correct redirect http - https with the same domain name
|
| A | http://www.merlin-memorial.de/ 2a03:4000:23:8c::1
| https://www.merlin-memorial.de/
| Correct redirect http - https with the same domain name
|
| N | merlin-memorial.de:993
|
| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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| N | www.merlin-memorial.de:993
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| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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| N | 5.189.136.46:993
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| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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| N | 185.228.136.144:993
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| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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| X | Fatal error: Nameserver doesn't support TCP connection: ns3.aw.net / 85.25.63.66: Refused
|
| 2. Header-Checks |
| 3. DNS- and NameServer - Checks |
| 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: ns2.aw.net,ns3.aw.net
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| A | Good: Nameserver supports Echo Capitalization: 5 good Nameserver
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| A | Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 5 good Nameserver
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| Nameserver doesn't pass all EDNS-Checks: ns2.aw.net / 2a03:4000:23:8c::2: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: fatal timeout. V1DNSSEC: ok. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
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| Nameserver doesn't pass all EDNS-Checks: ns3.aw.net / 85.25.63.66: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
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| Nameserver doesn't pass all EDNS-Checks: ns3.aw.net / 2602:fea7:c0:3::2: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: fatal timeout. V1DNSSEC: ok. NSID: ok. COOKIE: fatal timeout. CLIENTSUBNET: ok.
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| A | Good: All SOA have the same Serial Number
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| A | Good: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create certificates
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| A | Good: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create wildcard-certificates
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| 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.
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| A | Good: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
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| A | Good: No https + http status 200 with inline CSS / JavaScript found
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| A | Good: Every https result with status 200 has a minified Html-Content with a quota lower then 110 %.
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| https://merlin-memorial.de/ 5.189.136.46
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| 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.
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| https://merlin-memorial.de/ 185.228.136.144
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| 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.
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| https://merlin-memorial.de/ 2a02:c207:3002:7375::1
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| 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.
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| https://merlin-memorial.de/ 2a03:4000:23:8c::1
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| 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.
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| A | Good: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 28 external CSS / JavaScript files found
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| A | Good: All images with internal compression not compressed. Some Images (.png, .jpg, .jpeg, .webp, .gif) are already compressed, so an additional compression isn't helpful. 672 images (type image/png, image/jpg) found without additional GZip. Not required because these images are already compressed
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| Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 28 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 28 complete.
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| Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 676 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 676 complete.
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| A | Good: All checked attribute values are enclosed in quotation marks (" or ').
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| Wrong: img-elements without alt-attribute or empty alt-attribute found. The alt-attribute ("alternative") is required and should describe the img. So Screenreader and search engines are able to use these informations.: 684 img-elements without alt-attribute, 0 img-elements with empty alt-attribute found.
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| 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
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| https://merlin-memorial.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| 3.367 seconds
| Warning: 404 needs more then one second
|
| A | Duration: 248450 milliseconds, 248.450 seconds
|