1. General Results, most used to calculate the result A name "merritos.com" is domain, public suffix is "com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services" A good: All ip addresses are public addresses A good: No asked Authoritative Name Server had a timeout A good: destination is https HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List. A Good: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset) B https://merritos.com:5000/ 172.104.56.240 Missing HSTS-Header B https://merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 Missing HSTS-Header B https://www.merritos.com:5000/ 172.104.56.240 Missing HSTS-Header B https://www.merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 Missing HSTS-Header C Error - no preferred version www or non-www. Select one version as preferred version, then add a redirect https + not-preferred version to https + preferred version. Perhaps in your port 443 vHost something like "RewriteEngine on" + "RewriteCond %{SERVER_NAME} = example.com" + "ReWriteRule ^ https://www.example.com%{REQUEST_URI} [END,QSA,R=permanent]" (three rows, without the "). That should create a redirect https + example.com ⇒ https + www.example.com. Or switch both values to use the non-www version as your preferred version. 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. N https://merritos.com:5000/ 172.104.56.240 Error - Certificate isn't trusted, RemoteCertificateNameMismatch N https://merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 Error - Certificate isn't trusted, RemoteCertificateNameMismatch N https://www.merritos.com:5000/ 172.104.56.240 Error - Certificate isn't trusted, RemoteCertificateNameMismatch N https://www.merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 Error - Certificate isn't trusted, RemoteCertificateNameMismatch 2. DNS- and NameServer - Checks X Fatal: Inconsistency 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.: ns2.linode.com (162.159.24.39): Delegation: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com, Zone: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com,ns5.linode.com X Fatal: Inconsistency 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.: ns2.linode.com (2400:cb00:2049:1::a29f:1827): Delegation: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com, Zone: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com,ns5.linode.com X Fatal: Inconsistency 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.: ns3.linode.com (162.159.25.129): Delegation: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com, Zone: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com,ns5.linode.com X Fatal: Inconsistency 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.: ns3.linode.com (2400:cb00:2049:1::a29f:1981): Delegation: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com, Zone: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com,ns5.linode.com X Fatal: Inconsistency 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.: ns4.linode.com (162.159.26.99): Delegation: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com, Zone: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com,ns5.linode.com X Fatal: Inconsistency 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.: ns4.linode.com (2400:cb00:2049:1::a29f:1b48): Delegation: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com, Zone: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com,ns5.linode.com X Fatal: Inconsistency 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.: ns5.linode.com (162.159.24.25): Delegation: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com, Zone: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com,ns5.linode.com X Fatal: Inconsistency 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.: ns5.linode.com (2400:cb00:2049:1::a29f:1819): Delegation: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com, Zone: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com,ns5.linode.com X Fatal: Inconsistency 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.: ns1.linode.com (162.159.27.72): Delegation: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com, Zone: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com,ns5.linode.com X Fatal: Inconsistency 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.: ns1.linode.com (2400:cb00:2049:1::a29f:1a63): Delegation: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com, Zone: ns1.linode.com,ns2.linode.com,ns3.linode.com,ns4.linode.com,ns5.linode.com A Good: Nameserver supports TCP connections: 10 good Nameserver A Good: Nameserver supports Echo Capitalization: 10 good Nameserver A Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 10 good Nameserver A Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 10 good Nameserver A Good: All SOA have the same Serial Number 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. 3. Content- and Performance-critical Checks http://merritos.com:5000/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 172.104.56.240 Fatal: Check of /.well-known/acme-challenge/random-filename is blocked, http connection error. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://merritos.com:5000/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2400:8901::f03c:91ff:fe30:bd50 Fatal: Check of /.well-known/acme-challenge/random-filename is blocked, http connection error. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://www.merritos.com:5000/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 172.104.56.240 Fatal: Check of /.well-known/acme-challenge/random-filename is blocked, http connection error. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://www.merritos.com:5000/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2400:8901::f03c:91ff:fe30:bd50 Fatal: Check of /.well-known/acme-challenge/random-filename is blocked, http connection error. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. https://merritos.com:5000/ 172.104.56.240 Warning: https result with status 200 and size greater then 1024 Bytes without GZip found. Add GZip support so the html content is compressed. https://merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 Warning: https result with status 200 and size greater then 1024 Bytes without GZip found. Add GZip support so the html content is compressed. https://www.merritos.com:5000/ 172.104.56.240 Warning: https result with status 200 and size greater then 1024 Bytes without GZip found. Add GZip support so the html content is compressed. https://www.merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 Warning: https result with status 200 and size greater then 1024 Bytes without GZip found. Add GZip support so the html content is compressed. https://merritos.com:5000/ 172.104.56.240 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. https://merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 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. https://www.merritos.com:5000/ 172.104.56.240 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. https://www.merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 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. https://merritos.com:5000/ 172.104.56.240 Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space. https://merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space. https://www.merritos.com:5000/ 172.104.56.240 Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space. https://www.merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space. https://merritos.com:5000/ 172.104.56.240 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. https://merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 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. https://www.merritos.com:5000/ 172.104.56.240 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. https://www.merritos.com:5000/ 2400:8901::f03c:91ff:fe30:bd50 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. Warning: CSS / JavaScript found without GZip support. Send these ressources with GZip. 12 external CSS / JavaScript files without GZip found - 4 with GZip, 16 complete Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 0 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 16 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 16 complete. 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 A Duration: 151843 milliseconds, 151.843 seconds