| 1. General Results, most used to calculate the result |
| A | name "104.18.2.2" is ipv4 address, public suffix is not defined
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| A | Good: All ip addresses are public addresses
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| A | Good: No cookie sent via http.
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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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| C | Error - no version with Http-Status 200
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| H | Fatal error: No https - result with http-status 200, no encryption
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| I | http://104.18.2.2/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 104.18.2.2
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| Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Not used to calculate the result because it's a http - check. But listed so you should fix it.
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| M | http://104.18.2.2/ 104.18.2.2
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| Misconfiguration - main pages should never send http status 400 - 499
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| 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.104.18.2.2
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| 2. Header-Checks |
| U |
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| No https result with http status 2** or 4** (standard-check) found, no header checked.
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| 3. DNS- and NameServer - Checks |
| 4. Content- and Performance-critical Checks |
| http://104.18.2.2/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 104.18.2.2
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| Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 401 / 403 Not Allowed / Forbidden. A http status 404 - Not Found - is expected. Creating a Letsencrypt certificate via http-01 challenge may not work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
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| A | Good: All script Elements (type text/javascript) and src-Attribute have a defer / async - Attribute. So loading and executing these JavaScripts doesn't block parsing and rendering the Html-Output.
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| A | Good: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 1 external CSS / JavaScript files found
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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. 1 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, 2 complete.
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| A | Good: All checked attribute values are enclosed in quotation marks (" or ').
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| A | Info: No img element found, no alt attribute checked
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| A | Duration: 6520 milliseconds, 6.520 seconds
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