1. General Results, most used to calculate the result A name "zssports.com" is domain, public suffix is ".com", top-level-domain is ".com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services", num .com-domains preloaded: 86299 (complete: 221801) A Good: All ip addresses are public addresses A Good: Minimal 2 ip addresses per domain name found: www.zssports.com has 6 different ip addresses (authoritative). A Good: Minimal 2 ip addresses per domain name found: zssports.com has 6 different ip addresses (authoritative). A Good: Ipv4 and Ipv6 addresses per domain name found: www.zssports.com has 3 ipv4, 3 ipv6 addresses A Good: Ipv4 and Ipv6 addresses per domain name found: zssports.com has 3 ipv4, 3 ipv6 addresses A Good: No asked Authoritative Name Server had a timeout A Good: destination is https A Good: No cookie sent via http. 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) A http://zssports.com/ 104.26.14.244 https://zssports.com/ Correct redirect http - https with the same domain name A http://zssports.com/ 104.26.15.244 https://zssports.com/ Correct redirect http - https with the same domain name A http://zssports.com/ 138.197.110.62 https://zssports.com/ Correct redirect http - https with the same domain name A http://zssports.com/ 172.67.74.99 https://zssports.com/ Correct redirect http - https with the same domain name A http://zssports.com/ 2606:4700:20::681a:ef4 https://zssports.com/ Correct redirect http - https with the same domain name A http://zssports.com/ 2606:4700:20::681a:ff4 https://zssports.com/ Correct redirect http - https with the same domain name A http://zssports.com/ 2606:4700:20::ac43:4a63 https://zssports.com/ Correct redirect http - https with the same domain name A http://www.zssports.com/ 104.26.14.244 https://www.zssports.com/ Correct redirect http - https with the same domain name A http://www.zssports.com/ 104.26.15.244 https://www.zssports.com/ Correct redirect http - https with the same domain name A http://www.zssports.com/ 138.197.110.62 https://www.zssports.com/ Correct redirect http - https with the same domain name A http://www.zssports.com/ 172.67.74.99 https://www.zssports.com/ Correct redirect http - https with the same domain name A http://www.zssports.com/ 2606:4700:20::681a:ef4 https://www.zssports.com/ Correct redirect http - https with the same domain name A http://www.zssports.com/ 2606:4700:20::681a:ff4 https://www.zssports.com/ Correct redirect http - https with the same domain name A http://www.zssports.com/ 2606:4700:20::ac43:4a63 https://www.zssports.com/ Correct redirect http - https with the same domain name B Warning: HSTS max-age is too short - minimum 31536000 = 365 days required, 86400 seconds = 1 days found B https://zssports.com/ 104.26.14.244 Missing HSTS-Header B https://zssports.com/ 104.26.15.244 Missing HSTS-Header B https://zssports.com/ 138.197.110.62 Missing HSTS-Header B https://zssports.com/ 172.67.74.99 Missing HSTS-Header B https://zssports.com/ 2606:4700:20::681a:ef4 Missing HSTS-Header B https://zssports.com/ 2606:4700:20::681a:ff4 Missing HSTS-Header B https://zssports.com/ 2606:4700:20::ac43:4a63 Missing HSTS-Header B https://www.zssports.com/ 104.26.14.244 Missing HSTS-Header B https://www.zssports.com/ 104.26.15.244 Missing HSTS-Header B https://www.zssports.com/ 138.197.110.62 Missing HSTS-Header B https://www.zssports.com/ 172.67.74.99 Missing HSTS-Header B https://www.zssports.com/ 2606:4700:20::681a:ef4 Missing HSTS-Header B https://www.zssports.com/ 2606:4700:20::681a:ff4 Missing HSTS-Header B https://www.zssports.com/ 2606:4700:20::ac43:4a63 Missing HSTS-Header B https://zssports.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Missing HSTS-Header B https://www.zssports.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 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. I https://www.zssports.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part. I https://zssports.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part. M https://138.197.110.62/ 138.197.110.62 Misconfiguration - main pages should never send http status 400 - 499 N https://138.197.110.62/ 138.197.110.62 Error - Certificate isn't trusted, RemoteCertificateNameMismatch P https://104.26.14.244/ 104.26.14.244 Error creating a TLS-Connection: No more details available. P https://104.26.15.244/ 104.26.15.244 Error creating a TLS-Connection: No more details available. P https://172.67.74.99/ 172.67.74.99 Error creating a TLS-Connection: No more details available. P https://[2606:4700:0020:0000:0000:0000:681a:0ef4]/ 2606:4700:20::681a:ef4 Error creating a TLS-Connection: No more details available. P https://[2606:4700:0020:0000:0000:0000:681a:0ff4]/ 2606:4700:20::681a:ff4 Error creating a TLS-Connection: No more details available. P https://[2606:4700:0020:0000:0000:0000:ac43:4a63]/ 2606:4700:20::ac43:4a63 Error creating a TLS-Connection: No more details available. A Good: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain www.zssports.com, 6 ip addresses. A Good: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain zssports.com, 6 ip addresses. Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain www.zssports.com, 6 ip addresses. Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain zssports.com, 6 ip addresses. 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.zssports.com 2. Header-Checks (alpha, started 2022-10-23, may be buggy / incomplete) A zssports.com 104.26.14.244 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=uJaZpSMHcMAZqsN3wnMXm6A75QYzwuEg91F3G10KLh4Yx20eLCvpI%2BhgyWpVe77n6xBsMjaB%2ByOePyluvbwIbgVt%2FASsibjBiBrr6DNawQ%2FXNuNdPjRCBrmhIP7VUg%3D%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=uJaZpSMHcMAZqsN3wnMXm6A75QYzwuEg91F3G10KLh4Yx20eLCvpI%2BhgyWpVe77n6xBsMjaB%2ByOePyluvbwIbgVt%2FASsibjBiBrr6DNawQ%2FXNuNdPjRCBrmhIP7VUg%3D%3D"}],"group":"cf-nel","max_age":604800} A zssports.com 104.26.15.244 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=xOw%2BeytKHCD1Nv%2B3gFVHfPvcBeTfflgcSl9bKR4%2BDitSkwi1q7YtF%2BIfSVJVPOJctjG1GY3p2mLS5ZXjc1zlYJZa%2BpWJ1L8Ox3F3DIcysOoLlgoOqWlAAD88Si%2B8oQ%3D%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=xOw%2BeytKHCD1Nv%2B3gFVHfPvcBeTfflgcSl9bKR4%2BDitSkwi1q7YtF%2BIfSVJVPOJctjG1GY3p2mLS5ZXjc1zlYJZa%2BpWJ1L8Ox3F3DIcysOoLlgoOqWlAAD88Si%2B8oQ%3D%3D"}],"group":"cf-nel","max_age":604800} A zssports.com 172.67.74.99 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=2LW9jFZirbIbvWrT4MA6O9ITZErc%2Fe5dPkLZAGqVIR9MGYccwlklAb%2FWQUlD7kYREZDvhl16C3cLPS3LwtrgJqhvvD2FOZLtP%2F0vOTYfZ%2FzU1s0zOBQcsla4MOva9Q%3D%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=2LW9jFZirbIbvWrT4MA6O9ITZErc%2Fe5dPkLZAGqVIR9MGYccwlklAb%2FWQUlD7kYREZDvhl16C3cLPS3LwtrgJqhvvD2FOZLtP%2F0vOTYfZ%2FzU1s0zOBQcsla4MOva9Q%3D%3D"}],"group":"cf-nel","max_age":604800} A zssports.com 2606:4700:20::681a:ef4 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=KGdYCRwoQHWSotexTtiCmWiMKYKwv5XmXbhj3EMEaQnKg2lnjJiCCANX4sPxEc4P03Delz3ghmIuSEeTQy9tyUFHe604c1c8GighoKM58VHh5Rom0GhV1fdk6oCOiA8UmVnd9nPugpUZaQ%3D%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=KGdYCRwoQHWSotexTtiCmWiMKYKwv5XmXbhj3EMEaQnKg2lnjJiCCANX4sPxEc4P03Delz3ghmIuSEeTQy9tyUFHe604c1c8GighoKM58VHh5Rom0GhV1fdk6oCOiA8UmVnd9nPugpUZaQ%3D%3D"}],"group":"cf-nel","max_age":604800} A zssports.com 2606:4700:20::681a:ff4 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=F1csDI1%2BXS0bxd1BSBEm4XBRQCbpr6104vPlAEUhVX8CI7ZifUMYtetfQDVvUS3bxZz%2F%2BCKeOuIewRBDvrpWCtz%2FIO8cW%2BZ%2F2iFiJC6z0VrLFzJj0CONrym4t8IrwwEXy1QQ%2BXAvgLUcFQ%3D%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=F1csDI1%2BXS0bxd1BSBEm4XBRQCbpr6104vPlAEUhVX8CI7ZifUMYtetfQDVvUS3bxZz%2F%2BCKeOuIewRBDvrpWCtz%2FIO8cW%2BZ%2F2iFiJC6z0VrLFzJj0CONrym4t8IrwwEXy1QQ%2BXAvgLUcFQ%3D%3D"}],"group":"cf-nel","max_age":604800} A zssports.com 2606:4700:20::ac43:4a63 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=mSnmoN57RTfDcYdfOBoioBwTpCSRS1A6Wf03gol%2BXPm8qVj1uLOxV7ldxQ%2FspvDrXSm8zpcMcBzh22%2B9ieJGZc%2BlEcqfGYst64yL0yMqgkmLBuI9GN7vI0%2F2VRE5vhv1f63rdPEjQvgZkQ%3D%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=mSnmoN57RTfDcYdfOBoioBwTpCSRS1A6Wf03gol%2BXPm8qVj1uLOxV7ldxQ%2FspvDrXSm8zpcMcBzh22%2B9ieJGZc%2BlEcqfGYst64yL0yMqgkmLBuI9GN7vI0%2F2VRE5vhv1f63rdPEjQvgZkQ%3D%3D"}],"group":"cf-nel","max_age":604800} A www.zssports.com 104.26.14.244 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=1VBkH65iFLmP5F2R4xcUAMFJvLORcjrJb1O1a2ddNLTRjhuq%2B%2Fy%2BhhsAmoJD1m2%2BRSXmLX5QD7pGWQE99FI6IGNI0iCLpvHQzj2YWToI2cdc2MMjorXLI%2Buv8v65PEHb93Y%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=1VBkH65iFLmP5F2R4xcUAMFJvLORcjrJb1O1a2ddNLTRjhuq%2B%2Fy%2BhhsAmoJD1m2%2BRSXmLX5QD7pGWQE99FI6IGNI0iCLpvHQzj2YWToI2cdc2MMjorXLI%2Buv8v65PEHb93Y%3D"}],"group":"cf-nel","max_age":604800} A www.zssports.com 104.26.15.244 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=n0jPE7UeoGR2Pbu3i264HQV2Bu0V9IR5wW5istmjv%2BlROEyW57Cv%2BRrdw8bityp1PxcL%2BG6XIKPD1%2FuxIoiZl1TRchMaKJ4vyFxcux1nvzV4Jen0GnZr3SJEmkRDKXtb%2BIA%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=n0jPE7UeoGR2Pbu3i264HQV2Bu0V9IR5wW5istmjv%2BlROEyW57Cv%2BRrdw8bityp1PxcL%2BG6XIKPD1%2FuxIoiZl1TRchMaKJ4vyFxcux1nvzV4Jen0GnZr3SJEmkRDKXtb%2BIA%3D"}],"group":"cf-nel","max_age":604800} A www.zssports.com 172.67.74.99 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=%2FSOe%2Be3A30haaLVjrRvh%2F61b%2Bq7znh748faSVau1S9Uvo00sl1l4jWHVhC1%2FdDimPGLjwA65WKfapYmAJd3G9hPJ1rppQaon%2B0uMsSoNqVwdujq13DfACeFL1vA9hDbElbQ%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=%2FSOe%2Be3A30haaLVjrRvh%2F61b%2Bq7znh748faSVau1S9Uvo00sl1l4jWHVhC1%2FdDimPGLjwA65WKfapYmAJd3G9hPJ1rppQaon%2B0uMsSoNqVwdujq13DfACeFL1vA9hDbElbQ%3D"}],"group":"cf-nel","max_age":604800} A www.zssports.com 2606:4700:20::681a:ef4 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=kOIJjWeapM9pkZ2BQb%2BGdxJonl%2FJnHMSI9U0zsd4TN%2FzqIidSqY1Bl%2FkoEKe3T9LfK6yNx2wZKtpROir%2Fd%2BXZScGSjAmzJIb4h784qVcekHQAPkpHu9ZdZfUXThYejztCoMcuHk0gUy1LohEZ20%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=kOIJjWeapM9pkZ2BQb%2BGdxJonl%2FJnHMSI9U0zsd4TN%2FzqIidSqY1Bl%2FkoEKe3T9LfK6yNx2wZKtpROir%2Fd%2BXZScGSjAmzJIb4h784qVcekHQAPkpHu9ZdZfUXThYejztCoMcuHk0gUy1LohEZ20%3D"}],"group":"cf-nel","max_age":604800} A www.zssports.com 2606:4700:20::681a:ff4 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=xuVhXUVWhq5IZVpN%2FfC0DNwr5NTGgJe83OtX%2Bfp3Gw8utkiP4U7LkDg%2F%2Bk2fSm%2FSsrW0b7GlqIVkYwjeRokMdxO8palXRiOPWtjJ7q%2BbtuUzm6A%2BR8ej6mMEIWaAn7t0TJdT%2BFMIfZxZeJ8OP%2Fk%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=xuVhXUVWhq5IZVpN%2FfC0DNwr5NTGgJe83OtX%2Bfp3Gw8utkiP4U7LkDg%2F%2Bk2fSm%2FSsrW0b7GlqIVkYwjeRokMdxO8palXRiOPWtjJ7q%2BbtuUzm6A%2BR8ej6mMEIWaAn7t0TJdT%2BFMIfZxZeJ8OP%2Fk%3D"}],"group":"cf-nel","max_age":604800} A www.zssports.com 2606:4700:20::ac43:4a63 report-to Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=LZDM70DYtLQnhePeE29XAXalYWo83XnExYz%2BTya47QS0Obhx3uZmGQsH6r8DtGgUA%2B3Odl2mzP9SwmdP4EW9J%2BLw2jxoyNtJoU2vPbC4WnVZ63BPzCmifXc%2FSn%2BN0D27XSEYKrAihsuJgcHsVAI%3D"}],"group":"cf-nel","max_age":604800} A Ok: Header without syntax errors found: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=LZDM70DYtLQnhePeE29XAXalYWo83XnExYz%2BTya47QS0Obhx3uZmGQsH6r8DtGgUA%2B3Odl2mzP9SwmdP4EW9J%2BLw2jxoyNtJoU2vPbC4WnVZ63BPzCmifXc%2FSn%2BN0D27XSEYKrAihsuJgcHsVAI%3D"}],"group":"cf-nel","max_age":604800} F zssports.com 104.26.14.244 Content-Security-Policy Critical: Missing Header: F zssports.com 104.26.14.244 X-Content-Type-Options Critical: Missing Header: F zssports.com 104.26.14.244 Referrer-Policy Critical: Missing Header: F zssports.com 104.26.14.244 Permissions-Policy Critical: Missing Header: F zssports.com 104.26.15.244 Content-Security-Policy Critical: Missing Header: F zssports.com 104.26.15.244 X-Content-Type-Options Critical: Missing Header: F zssports.com 104.26.15.244 Referrer-Policy Critical: Missing Header: F zssports.com 104.26.15.244 Permissions-Policy Critical: Missing Header: F zssports.com 138.197.110.62 Content-Security-Policy Critical: Missing Header: F zssports.com 138.197.110.62 X-Content-Type-Options Critical: Missing Header: F zssports.com 138.197.110.62 Referrer-Policy Critical: Missing Header: F zssports.com 138.197.110.62 Permissions-Policy Critical: Missing Header: F zssports.com 172.67.74.99 Content-Security-Policy Critical: Missing Header: F zssports.com 172.67.74.99 X-Content-Type-Options Critical: Missing Header: F zssports.com 172.67.74.99 Referrer-Policy Critical: Missing Header: F zssports.com 172.67.74.99 Permissions-Policy Critical: Missing Header: F zssports.com 2606:4700:20::681a:ef4 Content-Security-Policy Critical: Missing Header: F zssports.com 2606:4700:20::681a:ef4 X-Content-Type-Options Critical: Missing Header: F zssports.com 2606:4700:20::681a:ef4 Referrer-Policy Critical: Missing Header: F zssports.com 2606:4700:20::681a:ef4 Permissions-Policy Critical: Missing Header: F zssports.com 2606:4700:20::681a:ff4 Content-Security-Policy Critical: Missing Header: F zssports.com 2606:4700:20::681a:ff4 X-Content-Type-Options Critical: Missing Header: F zssports.com 2606:4700:20::681a:ff4 Referrer-Policy Critical: Missing Header: F zssports.com 2606:4700:20::681a:ff4 Permissions-Policy Critical: Missing Header: F zssports.com 2606:4700:20::ac43:4a63 Content-Security-Policy Critical: Missing Header: F zssports.com 2606:4700:20::ac43:4a63 X-Content-Type-Options Critical: Missing Header: F zssports.com 2606:4700:20::ac43:4a63 Referrer-Policy Critical: Missing Header: F zssports.com 2606:4700:20::ac43:4a63 Permissions-Policy Critical: Missing Header: F www.zssports.com 104.26.14.244 Content-Security-Policy Critical: Missing Header: F www.zssports.com 104.26.14.244 X-Content-Type-Options Critical: Missing Header: F www.zssports.com 104.26.14.244 Referrer-Policy Critical: Missing Header: F www.zssports.com 104.26.14.244 Permissions-Policy Critical: Missing Header: F www.zssports.com 104.26.15.244 Content-Security-Policy Critical: Missing Header: F www.zssports.com 104.26.15.244 X-Content-Type-Options Critical: Missing Header: F www.zssports.com 104.26.15.244 Referrer-Policy Critical: Missing Header: F www.zssports.com 104.26.15.244 Permissions-Policy Critical: Missing Header: F www.zssports.com 138.197.110.62 Content-Security-Policy Critical: Missing Header: F www.zssports.com 138.197.110.62 X-Content-Type-Options Critical: Missing Header: F www.zssports.com 138.197.110.62 Referrer-Policy Critical: Missing Header: F www.zssports.com 138.197.110.62 Permissions-Policy Critical: Missing Header: F www.zssports.com 172.67.74.99 Content-Security-Policy Critical: Missing Header: F www.zssports.com 172.67.74.99 X-Content-Type-Options Critical: Missing Header: F www.zssports.com 172.67.74.99 Referrer-Policy Critical: Missing Header: F www.zssports.com 172.67.74.99 Permissions-Policy Critical: Missing Header: F www.zssports.com 2606:4700:20::681a:ef4 Content-Security-Policy Critical: Missing Header: F www.zssports.com 2606:4700:20::681a:ef4 X-Content-Type-Options Critical: Missing Header: F www.zssports.com 2606:4700:20::681a:ef4 Referrer-Policy Critical: Missing Header: F www.zssports.com 2606:4700:20::681a:ef4 Permissions-Policy Critical: Missing Header: F www.zssports.com 2606:4700:20::681a:ff4 Content-Security-Policy Critical: Missing Header: F www.zssports.com 2606:4700:20::681a:ff4 X-Content-Type-Options Critical: Missing Header: F www.zssports.com 2606:4700:20::681a:ff4 Referrer-Policy Critical: Missing Header: F www.zssports.com 2606:4700:20::681a:ff4 Permissions-Policy Critical: Missing Header: F www.zssports.com 2606:4700:20::ac43:4a63 Content-Security-Policy Critical: Missing Header: F www.zssports.com 2606:4700:20::ac43:4a63 X-Content-Type-Options Critical: Missing Header: F www.zssports.com 2606:4700:20::ac43:4a63 Referrer-Policy Critical: Missing Header: F www.zssports.com 2606:4700:20::ac43:4a63 Permissions-Policy Critical: Missing Header: 3. DNS- and NameServer - Checks A Info:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers. A Info:: 7 Queries complete, 7 with IPv6, 0 with IPv4. A Good: All DNS Queries done via IPv6. Ok (4 - 8):: An average of 3.5 queries per domain name server required to find all ip addresses of all name servers. A Info:: 2 different Name Servers found: chance.ns.cloudflare.com, meg.ns.cloudflare.com, 2 Name Servers included in Delegation: chance.ns.cloudflare.com, meg.ns.cloudflare.com, 2 Name Servers included in 1 Zone definitions: chance.ns.cloudflare.com, meg.ns.cloudflare.com, 1 Name Servers listed in SOA.Primary: chance.ns.cloudflare.com. A Good: Only one SOA.Primary Name Server found.: chance.ns.cloudflare.com. A Good: SOA.Primary Name Server included in the delegation set.: chance.ns.cloudflare.com. 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: chance.ns.cloudflare.com, meg.ns.cloudflare.com A Good: All Name Server Domain Names have a Public Suffix. A Good: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address. A Good: All Name Server ip addresses are public. A Good: Minimal 2 different name servers (public suffix and public ip address) found: 2 different Name Servers found Warning: All Name Servers have the same Top Level Domain / Public Suffix. If there is a problem with that Top Level Domain, your domain may be affected. Better: Use Name Servers with different top level domains.: 2 Name Servers, 1 Top Level Domain: com Warning: All Name Servers have the same domain name. If there is a problem with that domain name (or with the name servers of that domain name), your domain may be affected. Better: Use Name Servers with different domain names / different top level domains.: Only one domain name used: cloudflare.com A Good: Name servers with different Country locations found: 2 Name Servers, 3 Countries: CA, CR, GB A Info: Ipv4-Subnet-list: 6 Name Servers, 4 different subnets (first Byte): 108., 162., 172., 173., 4 different subnets (first two Bytes): 108.162., 162.159., 172.64., 173.245., 6 different subnets (first three Bytes): 108.162.192., 108.162.195., 162.159.44., 172.64.32., 172.64.35., 173.245.58. A Good: Name Server IPv4-addresses from different subnet found: A Info: IPv6-Subnet-list: 6 Name Servers with IPv6, 3 different subnets (first block): 2606:, 2803:, 2a06:, 3 different subnets (first two blocks): 2606:4700:, 2803:f800:, 2a06:98c1:, 4 different subnets (first three blocks): 2606:4700:0050:, 2606:4700:0058:, 2803:f800:0050:, 2a06:98c1:0050:, 4 different subnets (first four blocks): 2606:4700:0050:0000:, 2606:4700:0058:0000:, 2803:f800:0050:0000:, 2a06:98c1:0050:0000: A Good: Name Server IPv6 addresses from different subnets found. A Good: Nameserver supports TCP connections: 12 good Nameserver A Good: Nameserver supports Echo Capitalization: 12 good Nameserver A Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 12 good Nameserver A Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 12 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. 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. https://zssports.com/ 138.197.110.62 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.zssports.com/ 138.197.110.62 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://zssports.com/ 104.26.14.244 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://zssports.com/ 104.26.15.244 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://zssports.com/ 138.197.110.62 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://zssports.com/ 172.67.74.99 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://zssports.com/ 2606:4700:20::681a:ef4 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://zssports.com/ 2606:4700:20::681a:ff4 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://zssports.com/ 2606:4700:20::ac43:4a63 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.zssports.com/ 104.26.14.244 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.zssports.com/ 104.26.15.244 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.zssports.com/ 138.197.110.62 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.zssports.com/ 172.67.74.99 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.zssports.com/ 2606:4700:20::681a:ef4 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.zssports.com/ 2606:4700:20::681a:ff4 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.zssports.com/ 2606:4700:20::ac43:4a63 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://zssports.com/ 138.197.110.62 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.zssports.com/ 138.197.110.62 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://zssports.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 10 script elements without defer/async. https://www.zssports.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 10 script elements without defer/async. Warning: CSS / JavaScript found without GZip support. Send these ressources with GZip. 26 external CSS / JavaScript files without GZip found - 4 with GZip, 30 complete A Good: All images with internal compression not sent via GZip. Images (.png, .jpg) are already compressed, so an additional GZip isn't helpful. 6 images (type image/png, image/jpg) found without additional GZip. Not required because these images are already compressed Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 24 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 4 with Cache-Control max-age too short (minimum 7 days), 2 with Cache-Control long enough, 30 complete. Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 10 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, 10 complete. A Good: All checked attribute values are enclosed in quotation marks (" or '). 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.: 10 img-elements without alt-attribute, 0 img-elements with empty alt-attribute found. 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 https://zssports.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 4.847 seconds Warning: 404 needs more then one second https://www.zssports.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 5.133 seconds Warning: 404 needs more then one second A Info: Different Server-Headers found A Duration: 281550 milliseconds, 281.550 seconds