| 1. General Results, most used to calculate the result |
| A | name "nextcloud.die-schenks.dyndns.org" is subdomain, public suffix is ".dyndns.org", top-level-domain is ".org", top-level-domain-type is "generic", tld-manager is "Public Interest Registry (PIR)", num .org-domains preloaded: 5904 (complete: 175327)
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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: No cookie sent via http.
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| A | Good: every cookie sent via https is marked as secure
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| A | Good: Every cookie has a SameSite Attribute with a correct value Strict/Lax/None
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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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| B | https://nextcloud.die-schenks.dyndns.org/.well-known/acme-challenge/nag 94.134.57.221
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| Missing HSTS-Header
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| C | Error - more then one version with Http-Status 200. After all redirects, all users (and search engines) should see the same https url: Non-www or www, but not both with http status 200.
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| H | Fatal error: No https - result with http-status 200, no encryption
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| H | Fatal error: http result with http-status 200, no encryption. Add a redirect http ⇒ https, so every connection is secure. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop.
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| M | https://www.nextcloud.die-schenks.dyndns.org/.well-known/acme-challenge/nag 94.134.57.221
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| Misconfiguration - main pages should never send http status 400 - 499
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| M | https://94.134.57.221/.well-known/acme-challenge/nag 94.134.57.221
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| Misconfiguration - main pages should never send http status 400 - 499
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| N | https://www.nextcloud.die-schenks.dyndns.org/.well-known/acme-challenge/nag 94.134.57.221
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| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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| N | https://94.134.57.221/.well-known/acme-challenge/nag 94.134.57.221
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| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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| 2. Header-Checks |
| 3. DNS- and NameServer - Checks |
| A | Info:: 13 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
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| A | Info:: 13 Queries complete, 13 with IPv6, 0 with IPv4.
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| A | Good: All DNS Queries done via IPv6.
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| Ok (4 - 8):: An average of 3.3 queries per domain name server required to find all ip addresses of all name servers.
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| A | Info:: 5 different Name Servers found: ns1.dyndns.org, ns1.p201.dns.oraclecloud.net, ns2.p201.dns.oraclecloud.net, ns3.p201.dns.oraclecloud.net, ns4.p201.dns.oraclecloud.net, 4 Name Servers included in Delegation: ns1.p201.dns.oraclecloud.net, ns2.p201.dns.oraclecloud.net, ns3.p201.dns.oraclecloud.net, ns4.p201.dns.oraclecloud.net, 4 Name Servers included in 2 Zone definitions: ns1.p201.dns.oraclecloud.net, ns2.p201.dns.oraclecloud.net, ns3.p201.dns.oraclecloud.net, ns4.p201.dns.oraclecloud.net, 1 Name Servers listed in SOA.Primary: ns1.dyndns.org.
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| A | Good: Only one SOA.Primary Name Server found.: ns1.dyndns.org.
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| Error: SOA.Primary Name Server not included in the delegation set.: ns1.dyndns.org.
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| A | Good: All Name Server Domain Names have a Public Suffix.
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| Error: Name Server Domain Names with Public Suffix and without ip address found.: 1 Name Servers without ipv4 and ipv6: 1
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| A |
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| A | Info: IPv6-Subnet-list: 4 Name Servers with IPv6, 1 different subnets (first block): 2600:, 1 different subnets (first two blocks): 2600:2000:, 4 different subnets (first three blocks): 2600:2000:2100:, 2600:2000:2110:, 2600:2000:2120:, 2600:2000:2130:, 4 different subnets (first four blocks): 2600:2000:2100:0000:, 2600:2000:2110:0000:, 2600:2000:2120:0000:, 2600:2000:2130:0000:
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| A | Good: Name Server IPv6 addresses from different subnets found.
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| A | Good: Nameserver supports TCP connections: 1 good Nameserver
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| A | Good: Nameserver supports Echo Capitalization: 1 good Nameserver
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| A | Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 1 good Nameserver
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| A | Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 1 good Nameserver
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| Nameserver doesn't pass all EDNS-Checks: ns1.dyndns.org: 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: ns4.p201.dns.oraclecloud.net / 2600:2000:2130::c9: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: ok (dns-global-authoritative-01003.il-jerusalem-1). 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 | Info: No img element found, no alt attribute checked
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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 | Info: Different Server-Headers found
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| A | Duration: 162120 milliseconds, 162.120 seconds
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