| 1. General Results, most used to calculate the result |
| A | name "box.drspy.cn" is subdomain, public suffix is "cn", top-level-domain-type is "country-code", Country is China, tld-manager is "China Internet Network Information Center (CNNIC)"
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| A | Good: All ip addresses are public addresses
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| A | DNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
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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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| 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: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):0 complete Content-Type - header (2 urls)
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| https://box.drspy.cn/ 45.76.78.228
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| Url with incomplete Content-Type - header - missing charset
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| http://box.drspy.cn/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 45.76.78.228
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| Url with incomplete Content-Type - header - missing charset
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| A | http://box.drspy.cn/ 45.76.78.228
| https://box.drspy.cn/
| Correct redirect http - https with the same domain name
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| B | Warning: HSTS max-age is too short - minimum 31536000 = 365 days required, 15768000 seconds = 182 days found
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| N | 45.76.78.228:993
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| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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| X | Fatal error: Nameserver doesn't support TCP connection: dns29.hichina.com: Timeout
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| 2. Header-Checks |
| 3. DNS- and NameServer - Checks |
| A | Good: Nameserver supports TCP connections: 9 good Nameserver
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| A | Good: Nameserver supports Echo Capitalization: 9 good Nameserver
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| X | Nameserver Timeout checking Echo Capitalization: g.dns.cn
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| X | Nameserver Timeout checking EDNS512: dns29.hichina.com / 106.11.211.69
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| X | Nameserver Timeout checking EDNS512: g.dns.cn
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| Nameserver doesn't pass all EDNS-Checks: a.dns.cn: OP100: ok. FLAGS: fatal timeout. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
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| Nameserver doesn't pass all EDNS-Checks: dns29.hichina.com: OP100: ok. FLAGS: ok. V1: fatal timeout. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
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| Nameserver doesn't pass all EDNS-Checks: dns29.hichina.com: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
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| Nameserver doesn't pass all EDNS-Checks: dns29.hichina.com / 106.11.141.119: OP100: ok. FLAGS: fatal timeout. 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: dns29.hichina.com / 106.11.141.129: OP100: ok. FLAGS: ok. V1: ok. V1OP100: fatal timeout. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
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| Nameserver doesn't pass all EDNS-Checks: dns29.hichina.com / 140.205.81.29: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: fatal timeout. COOKIE: ok. CLIENTSUBNET: ok.
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| Nameserver doesn't pass all EDNS-Checks: dns29.hichina.com / 2400:3200:2000:48::1: OP100: fatal timeout. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: fatal timeout. V1DNSSEC: ok. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: ok.
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| Nameserver doesn't pass all EDNS-Checks: f.dns.cn: OP100: fatal timeout. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: ok.
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| Nameserver doesn't pass all EDNS-Checks: g.dns.cn: OP100: ok. FLAGS: ok. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: ok. CLIENTSUBNET: ok.
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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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| 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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| A | Good: Every https connection via port 443 supports the http/2 protocol via ALPN.
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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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| A | Duration: 303433 milliseconds, 303.433 seconds
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