| 1. General Results, most used to calculate the result |
| A | name "notjustdetails.com" is domain, public suffix is "com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services"
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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 | 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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| HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
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| A | Good: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
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| A | http://notjustdetails.com/ 165.227.39.217
| https://notjustdetails.com/
| Correct redirect http - https with the same domain name
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| A | http://www.notjustdetails.com/ 165.227.39.217
| https://www.notjustdetails.com/
| Correct redirect http - https with the same domain name
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| B | https://notjustdetails.com/ 165.227.39.217
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| Missing HSTS-Header
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| B | https://www.notjustdetails.com/ 165.227.39.217
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| Missing HSTS-Header
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| I | https://notjustdetails.com/ 165.227.39.217
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| Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
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| 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: ns1.digitalocean.com,ns2.digitalocean.com,ns3.digitalocean.com
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| A | Good: Nameserver supports TCP connections: 6 good Nameserver
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| A | Good: Nameserver supports Echo Capitalization: 6 good Nameserver
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| A | Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 6 good Nameserver
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| A | Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 6 good Nameserver
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| A | Good: All SOA have the same Serial Number
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| 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.
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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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| https://notjustdetails.com/ 165.227.39.217
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| Warning: https result with status 200 and size greater then 1024 Bytes without Compression found. Add Compression support (gzip, deflate, br - these are checked) so the html content is compressed.
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| https://notjustdetails.com/ 165.227.39.217
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| Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
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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://notjustdetails.com/ 165.227.39.217
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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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| Warning: CSS / JavaScript found without Compression. Compress these ressources, gzip, deflate, br are checked. 11 external CSS / JavaScript files without GZip found - 1 with GZip, 12 complete
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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. 20 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. 11 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 1 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 12 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. 30 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, 30 complete.
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| A | Good: All checked attribute values are enclosed in quotation marks (" or ').
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| A | Good: Some img-elements have a valid alt-attribute.: 6 img-elements found, 5 img-elements with correct alt-attributes (defined, not an empty value).
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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.: 1 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://notjustdetails.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| 4.623 seconds
| Warning: 404 needs more then one second
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| https://www.notjustdetails.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| 4.640 seconds
| Warning: 404 needs more then one second
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| A | Duration: 117990 milliseconds, 117.990 seconds
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