| 1. General Results, most used to calculate the result |
| A | name "l.opnxng.com" is subdomain, 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: 105479 (complete: 270180)
|
| A | Good: All ip addresses are public addresses
|
| A | Good: Minimal 2 ip addresses per domain name found: l.opnxng.com has 2 different ip addresses (authoritative).
|
| A | Good: Minimal 2 ip addresses per domain name found: www.l.opnxng.com has 2 different ip addresses (authoritative).
|
| A | Good: Ipv4 and Ipv6 addresses per domain name found: l.opnxng.com has 1 ipv4, 1 ipv6 addresses
|
| A | Good: Ipv4 and Ipv6 addresses per domain name found: www.l.opnxng.com has 1 ipv4, 1 ipv6 addresses
|
| A | Good: No asked Authoritative Name Server had a timeout
|
| A | Good: destination is https
|
| A | Good - only one version with Http-Status 200
|
| A | Good: one preferred version: non-www is preferred
|
| A | Good: No cookie sent via http.
|
| A | Good: Every cookie has a SameSite Attribute with a correct value Strict/Lax/None
|
| A | Excellent: Main Domain is in the Google-Preload-List
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| A | Excellent: Main Domain is in the Mozilla/Firefox-Preload-List
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| A | HSTS-Preload-Status: Preloaded. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
|
| A | Good: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):2 complete Content-Type - header (3 urls)
|
| https://l.opnxng.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
|
| Url with incomplete Content-Type - header - missing charset
|
| A | http://l.opnxng.com/ 51.79.161.72
| https://l.opnxng.com/
| Correct redirect http - https with the same domain name
|
| A | http://l.opnxng.com/ 2402:1f00:8000:800::990
| https://l.opnxng.com/
| Correct redirect http - https with the same domain name
|
| B | https://l.opnxng.com/ 51.79.161.72
| within.website-x-cmd-anubis-auth=; Domain=opnxng.com; Expires=Tue, 15 Apr 2025 08:02:32 GMT; Max-Age=0; SameSite=Lax
| Cookie sent via https, but not marked as secure
|
| B | https://l.opnxng.com/ 2402:1f00:8000:800::990
| within.website-x-cmd-anubis-auth=; Domain=opnxng.com; Expires=Tue, 15 Apr 2025 08:02:41 GMT; Max-Age=0; SameSite=Lax
| Cookie sent via https, but not marked as secure
|
| 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 l.opnxng.com, 2 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 www.l.opnxng.com, 2 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 l.opnxng.com, 2 ip addresses.
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| 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.l.opnxng.com, 2 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.l.opnxng.com
|
| 2. Header-Checks |
| A | l.opnxng.com 51.79.161.72
| Content-Security-Policy
| Ok: Header without syntax errors found: base-uri 'self';block-all-mixed-content;font-src 'self' https: data:;frame-ancestors 'self';img-src 'self' data:;object-src 'none';script-src-attr 'none';style-src 'self' https: 'unsafe-inline';upgrade-insecure-requests
|
| B |
|
| Info: Header-Element is deprecated. block-all-mixed-content
|
| F |
|
| Bad: Missing default-src directive. A default-src directive is used if one of the specialized fetch directives (child-src, connect-src, font-src, frame-src, img-src, manifest-src, media-src, object-src, prefetch-src, script-src, style-src, worker-src) isn't defined. Missing default-src, all sources are allowed, that's bad. A default-src with 'none' or 'self' blocks that.
|
| E |
|
| Bad: No form-action directive found. Use one to limit the form - action - destinations. form-action is a navigation-directive, so default-src isn't used.
|
| A |
|
| Good: frame-ancestors directive found. That limits pages who are allowed to use this page in a frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used.
|
| A |
|
| Good: base-uri directive found. That limits the URLs which can be used in a document's <base> element. Because it's a document directive, default-src isn't used, so an own directive is required.
|
| A |
|
| Good: object-src only with 'none' or 'self' found, no scheme, no other urls. That blocks object / embed / applet - elements.
|
| F |
|
| Critical: No script-src and no default-src as fallback defined. So scripts are unlimited. That's fatal.
|
| A |
| X-Content-Type-Options
| Ok: Header without syntax errors found: nosniff
|
| A |
| Referrer-Policy
| Ok: Header without syntax errors found: no-referrer
|
| A |
| Permissions-Policy
| Ok: Header without syntax errors found: accelerometer=(),ambient-light-sensor=(),autoplay=(),camera=(),encrypted-media=(),focus-without-user-activation=(),geolocation=(),gyroscope=(),magnetometer=(),microphone=(),midi=(),payment=(),picture-in-picture=(),speaker=(),usb=(),vr=()
|
| A |
| X-Frame-Options
| Ok: Header without syntax errors found: SAMEORIGIN
|
| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. SAMEORIGIN. Better solution: Use a Content-Security-Policy Header with a frame-ancestors directive. DENY - use 'none', SAMEORIGIN - use 'self'. If you want to allow some domains to frame your page, add these urls.
|
| A |
| Feature-Policy
| Ok: Header without syntax errors found: accelerometer 'none';ambient-light-sensor 'none'; autoplay 'none';camera 'none';encrypted-media 'none';focus-without-user-activation 'none'; geolocation 'none';gyroscope 'none';magnetometer 'none';microphone 'none';midi 'none';payment 'none';picture-in-picture 'none'; speaker 'none';usb 'none';vr 'none'
|
| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. accelerometer 'none';ambient-light-sensor 'none'; autoplay 'none';camera 'none';encrypted-media 'none';focus-without-user-activation 'none'; geolocation 'none';gyroscope 'none';magnetometer 'none';microphone 'none';midi 'none';payment 'none';picture-in-picture 'none'; speaker 'none';usb 'none';vr 'none'
|
| A |
| X-Xss-Protection
| Ok: Header without syntax errors found: 1; mode=block
|
| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block
|
| A | l.opnxng.com 2402:1f00:8000:800::990
| Content-Security-Policy
| Ok: Header without syntax errors found: base-uri 'self';block-all-mixed-content;font-src 'self' https: data:;frame-ancestors 'self';img-src 'self' data:;object-src 'none';script-src-attr 'none';style-src 'self' https: 'unsafe-inline';upgrade-insecure-requests
|
| B |
|
| Info: Header-Element is deprecated. block-all-mixed-content
|
| F |
|
| Bad: Missing default-src directive. A default-src directive is used if one of the specialized fetch directives (child-src, connect-src, font-src, frame-src, img-src, manifest-src, media-src, object-src, prefetch-src, script-src, style-src, worker-src) isn't defined. Missing default-src, all sources are allowed, that's bad. A default-src with 'none' or 'self' blocks that.
|
| E |
|
| Bad: No form-action directive found. Use one to limit the form - action - destinations. form-action is a navigation-directive, so default-src isn't used.
|
| A |
|
| Good: frame-ancestors directive found. That limits pages who are allowed to use this page in a frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used.
|
| A |
|
| Good: base-uri directive found. That limits the URLs which can be used in a document's <base> element. Because it's a document directive, default-src isn't used, so an own directive is required.
|
| A |
|
| Good: object-src only with 'none' or 'self' found, no scheme, no other urls. That blocks object / embed / applet - elements.
|
| F |
|
| Critical: No script-src and no default-src as fallback defined. So scripts are unlimited. That's fatal.
|
| A |
| X-Content-Type-Options
| Ok: Header without syntax errors found: nosniff
|
| A |
| Referrer-Policy
| Ok: Header without syntax errors found: no-referrer
|
| A |
| Permissions-Policy
| Ok: Header without syntax errors found: accelerometer=(),ambient-light-sensor=(),autoplay=(),camera=(),encrypted-media=(),focus-without-user-activation=(),geolocation=(),gyroscope=(),magnetometer=(),microphone=(),midi=(),payment=(),picture-in-picture=(),speaker=(),usb=(),vr=()
|
| A |
| X-Frame-Options
| Ok: Header without syntax errors found: SAMEORIGIN
|
| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. SAMEORIGIN. Better solution: Use a Content-Security-Policy Header with a frame-ancestors directive. DENY - use 'none', SAMEORIGIN - use 'self'. If you want to allow some domains to frame your page, add these urls.
|
| A |
| Feature-Policy
| Ok: Header without syntax errors found: accelerometer 'none';ambient-light-sensor 'none'; autoplay 'none';camera 'none';encrypted-media 'none';focus-without-user-activation 'none'; geolocation 'none';gyroscope 'none';magnetometer 'none';microphone 'none';midi 'none';payment 'none';picture-in-picture 'none'; speaker 'none';usb 'none';vr 'none'
|
| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. accelerometer 'none';ambient-light-sensor 'none'; autoplay 'none';camera 'none';encrypted-media 'none';focus-without-user-activation 'none'; geolocation 'none';gyroscope 'none';magnetometer 'none';microphone 'none';midi 'none';payment 'none';picture-in-picture 'none'; speaker 'none';usb 'none';vr 'none'
|
| A |
| X-Xss-Protection
| Ok: Header without syntax errors found: 1; mode=block
|
| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block
|
| B | l.opnxng.com 51.79.161.72
| Cross-Origin-Embedder-Policy
| Info: Missing Header
|
| B | l.opnxng.com 51.79.161.72
| Cross-Origin-Opener-Policy
| Info: Missing Header
|
| B | l.opnxng.com 51.79.161.72
| Cross-Origin-Resource-Policy
| Info: Missing Header
|
| B | l.opnxng.com 2402:1f00:8000:800::990
| Cross-Origin-Embedder-Policy
| Info: Missing Header
|
| B | l.opnxng.com 2402:1f00:8000:800::990
| Cross-Origin-Opener-Policy
| Info: Missing Header
|
| B | l.opnxng.com 2402:1f00:8000:800::990
| Cross-Origin-Resource-Policy
| Info: 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: blakely.ns.cloudflare.com, damian.ns.cloudflare.com, 2 Name Servers included in Delegation: blakely.ns.cloudflare.com, damian.ns.cloudflare.com, 2 Name Servers included in 1 Zone definitions: blakely.ns.cloudflare.com, damian.ns.cloudflare.com, 1 Name Servers listed in SOA.Primary: blakely.ns.cloudflare.com.
|
| A | Good: Only one SOA.Primary Name Server found.: blakely.ns.cloudflare.com.
|
| A | Good: SOA.Primary Name Server included in the delegation set.: blakely.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 | Info: Ipv4-Subnet-list: 6 Name Servers, 3 different subnets (first Byte): 108., 162., 172., 3 different subnets (first two Bytes): 108.162., 162.159., 172.64., 6 different subnets (first three Bytes): 108.162.194., 108.162.195., 162.159.38., 162.159.44., 172.64.34., 172.64.35.
|
| 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
|
| A | Good: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create wildcard-certificates
|
| 4. Content- and Performance-critical Checks |
| https://www.l.opnxng.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
|
| 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.
|
| A | Good: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
|
| https://l.opnxng.com/ 51.79.161.72
|
| 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://l.opnxng.com/ 2402:1f00:8000:800::990
|
| 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://l.opnxng.com/ 51.79.161.72
|
| 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://l.opnxng.com/ 2402:1f00:8000:800::990
|
| 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.
|
| A | Good: Every https connection via port 443 supports the http/2 protocol via ALPN.
|
| A | Good: Some script Elements (type text/javascript) with a src-Attribute have a defer / async - Attribute. So loading and executing these JavaScripts doesn't block parsing and rendering the Html-Output.
|
| https://l.opnxng.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.: 1 script elements without defer/async.
|
| A | Good: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 4 external CSS / JavaScript files found
|
| A | Good: All images with internal compression not compressed. Some Images (.png, .jpg, .jpeg, .webp, .gif) are already compressed, so an additional compression isn't helpful. 4 images (type image/png, image/jpg, image/jpeg, image/webp, image/gif) found without additional Compression. 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. 0 external CSS / JavaScript files without Cache-Control-Header, 2 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 4 with Cache-Control long enough, 6 complete.
|
| A | Good: All images are sent with a long Cache-Control header (minimum 7 days). So the browser can reuse these files, no download is required. 4 image files with long Cache-Control max-age found
|
| 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.: 4 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://l.opnxng.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| 6.450 seconds
| Warning: 404 needs more then one second
|
| A | Duration: 347640 milliseconds, 347.640 seconds
|
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