| 1. General Results, most used to calculate the result |
| A | name "gmk.net.pl" is domain, public suffix is ".net.pl", top-level-domain is ".pl", top-level-domain-type is "country-code", Country is Poland, tld-manager is "Research and Academic Computer Network", num .pl-domains preloaded: 2145 (complete: 276475)
|
| A | Good: All ip addresses are public addresses
|
| A | Good: Minimal 2 ip addresses per domain name found: gmk.net.pl has 2 different ip addresses (authoritative).
|
| A | Good: Ipv4 and Ipv6 addresses per domain name found: gmk.net.pl has 1 ipv4, 1 ipv6 addresses
|
| Warning: Only one ip address found: www.gmk.net.pl has only one ip address.
|
| Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: www.gmk.net.pl has no ipv6 address.
|
| A | Good: No asked Authoritative Name Server had a timeout
|
| A | https://gmk.net.pl/ 91.205.75.167
|
| Good: Valid DANE - entry found: signed Data _443._tcp.gmk.net.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 2 (SHA2-512, 512 bit hash by SHA2), CertificateAssociationData: 75577d98ac513c921b0828482fce04abc957d4d423b37ea2433c6250f95a5a5de7963016ae7814102dafc00a418747e8317c1db4d1c20985c08fc367f195c393 confirms the Certificate with the same value
|
| A | https://gmk.net.pl/ 2001:470:71:61::2
|
| Good: Valid DANE - entry found: signed Data _443._tcp.gmk.net.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 2 (SHA2-512, 512 bit hash by SHA2), CertificateAssociationData: 75577d98ac513c921b0828482fce04abc957d4d423b37ea2433c6250f95a5a5de7963016ae7814102dafc00a418747e8317c1db4d1c20985c08fc367f195c393 confirms the Certificate with the same value
|
| A | https://91.205.75.167/ 91.205.75.167
|
| Good: Valid DANE - entry found: signed Data _443._tcp.gmk.net.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 2 (SHA2-512, 512 bit hash by SHA2), CertificateAssociationData: 75577d98ac513c921b0828482fce04abc957d4d423b37ea2433c6250f95a5a5de7963016ae7814102dafc00a418747e8317c1db4d1c20985c08fc367f195c393 confirms the Certificate with the same value
|
| A | https://[2001:0470:0071:0061:0000:0000:0000:0002]/ 2001:470:71:61::2
|
| Good: Valid DANE - entry found: signed Data _443._tcp.gmk.net.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 2 (SHA2-512, 512 bit hash by SHA2), CertificateAssociationData: 75577d98ac513c921b0828482fce04abc957d4d423b37ea2433c6250f95a5a5de7963016ae7814102dafc00a418747e8317c1db4d1c20985c08fc367f195c393 confirms the Certificate with the same value
|
| A | https://mta-sts.gmk.net.pl/.well-known/mta-sts.txt 91.205.75.167
|
| Good: Valid DANE - entry found: signed Data _443._tcp.gmk.net.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 2 (SHA2-512, 512 bit hash by SHA2), CertificateAssociationData: 75577d98ac513c921b0828482fce04abc957d4d423b37ea2433c6250f95a5a5de7963016ae7814102dafc00a418747e8317c1db4d1c20985c08fc367f195c393 confirms the Certificate with the same value
|
| A | Good: destination is https
|
| A | Good: No cookie sent via http.
|
| A | Good: every https has a Strict Transport Security Header
|
| A | Good: HSTS max-age is long enough, 31536000 seconds = 365 days
|
| 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: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):1 complete Content-Type - header (7 urls)
|
| https://gmk.net.pl/ 91.205.75.167
|
| Url with incomplete Content-Type - header - missing charset
|
| https://gmk.net.pl/ 2001:470:71:61::2
|
| Url with incomplete Content-Type - header - missing charset
|
| https://www.gmk.net.pl/ 91.205.75.167
|
| Url with incomplete Content-Type - header - missing charset
|
| https://91.205.75.167/ 91.205.75.167
|
| Url with incomplete Content-Type - header - missing charset
|
| https://[2001:0470:0071:0061:0000:0000:0000:0002]/ 2001:470:71:61::2
|
| Url with incomplete Content-Type - header - missing charset
|
| https://mta-sts.gmk.net.pl/.well-known/mta-sts.txt 91.205.75.167
|
| Url with incomplete Content-Type - header - missing charset
|
| A | http://www.gmk.net.pl/ 91.205.75.167
| https://www.gmk.net.pl/
| Correct redirect http - https with the same domain name
|
| 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.
|
| E | http://gmk.net.pl/ 91.205.75.167
| https://www.gmk.net.pl/
| Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. 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. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
|
| E | http://gmk.net.pl/ 2001:470:71:61::2
| https://www.gmk.net.pl/
| Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. 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. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
|
| I | https://gmk.net.pl/ 91.205.75.167
|
| Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
|
| I | https://gmk.net.pl/ 2001:470:71:61::2
|
| Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
|
| I | https://www.gmk.net.pl/ 91.205.75.167
|
| Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
|
| I | https://91.205.75.167/ 91.205.75.167
|
| Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
|
| I | https://[2001:0470:0071:0061:0000:0000:0000:0002]/ 2001:470:71:61::2
|
| Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
|
| N | https://91.205.75.167/ 91.205.75.167
|
| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
|
| N | https://[2001:0470:0071:0061:0000:0000:0000:0002]/ 2001:470:71:61::2
|
| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
|
| N | gmk.net.pl:25
|
| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
|
| N | gmk.net.pl:587
|
| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
|
| N | gmk.net.pl:587
|
| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
|
| N | https://mta-sts.gmk.net.pl/.well-known/mta-sts.txt 91.205.75.167
|
| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
|
| O |
|
| 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 gmk.net.pl, 2 ip addresses.
|
| Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain gmk.net.pl, 2 ip addresses, 1 different http results.
|
| Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain www.gmk.net.pl, 1 ip addresses, 1 different http results.
|
| A | Good: _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Domainname: _mta-sts.gmk.net.pl
|
| A | Good: _mta-sts TXT record is valid.
|
| A | Good: Subdomain mta-sts found: Subdomain-name: mta-sts.gmk.net.pl, ip : 91.205.75.167
|
| A | Good: /.well-known/mta-sts.txt with http status 200 found. Complete path: https://mta-sts.gmk.net.pl/.well-known/mta-sts.txt - ip : 91.205.75.167
|
| A | Good: mta-sts.txt has the required names "version", "mode", "max_age". mta-sts.gmk.net.pl, ip : 91.205.75.167
|
| A | Good: Minimal one mx definition found. mta-sts.gmk.net.pl, ip : 91.205.75.167
|
| B | Bad: Valid _mta-sts TXT found, but subdomain mta-sts with invalid certificate mta-sts.gmk.net.pl, ip : 91.205.75.167
|
| 2. Header-Checks |
| A | gmk.net.pl 91.205.75.167
| 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 | gmk.net.pl 2001:470:71:61::2
| 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 | www.gmk.net.pl 91.205.75.167
| 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.
|
| F | gmk.net.pl 91.205.75.167
| Content-Security-Policy
| Critical: Missing Header:
|
| F | gmk.net.pl 91.205.75.167
| X-Content-Type-Options
| Critical: Missing Header:
|
| F | gmk.net.pl 91.205.75.167
| Referrer-Policy
| Critical: Missing Header:
|
| F | gmk.net.pl 91.205.75.167
| Permissions-Policy
| Critical: Missing Header:
|
| B | gmk.net.pl 91.205.75.167
| Cross-Origin-Embedder-Policy
| Info: Missing Header
|
| B | gmk.net.pl 91.205.75.167
| Cross-Origin-Opener-Policy
| Info: Missing Header
|
| B | gmk.net.pl 91.205.75.167
| Cross-Origin-Resource-Policy
| Info: Missing Header
|
| F | gmk.net.pl 2001:470:71:61::2
| Content-Security-Policy
| Critical: Missing Header:
|
| F | gmk.net.pl 2001:470:71:61::2
| X-Content-Type-Options
| Critical: Missing Header:
|
| F | gmk.net.pl 2001:470:71:61::2
| Referrer-Policy
| Critical: Missing Header:
|
| F | gmk.net.pl 2001:470:71:61::2
| Permissions-Policy
| Critical: Missing Header:
|
| B | gmk.net.pl 2001:470:71:61::2
| Cross-Origin-Embedder-Policy
| Info: Missing Header
|
| B | gmk.net.pl 2001:470:71:61::2
| Cross-Origin-Opener-Policy
| Info: Missing Header
|
| B | gmk.net.pl 2001:470:71:61::2
| Cross-Origin-Resource-Policy
| Info: Missing Header
|
| F | www.gmk.net.pl 91.205.75.167
| Content-Security-Policy
| Critical: Missing Header:
|
| F | www.gmk.net.pl 91.205.75.167
| X-Content-Type-Options
| Critical: Missing Header:
|
| F | www.gmk.net.pl 91.205.75.167
| Referrer-Policy
| Critical: Missing Header:
|
| F | www.gmk.net.pl 91.205.75.167
| Permissions-Policy
| Critical: Missing Header:
|
| B | www.gmk.net.pl 91.205.75.167
| Cross-Origin-Embedder-Policy
| Info: Missing Header
|
| B | www.gmk.net.pl 91.205.75.167
| Cross-Origin-Opener-Policy
| Info: Missing Header
|
| B | www.gmk.net.pl 91.205.75.167
| Cross-Origin-Resource-Policy
| Info: Missing Header
|
| 3. DNS- and NameServer - Checks |
| A | Info:: 3 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
|
| A | Info:: 3 Queries complete, 3 with IPv6, 0 with IPv4.
|
| A | Good: All DNS Queries done via IPv6.
|
| A | Good: Some ip addresses of name servers found with the minimum of two DNS Queries. One to find the TLD-Zone, one to ask the TLD-Zone.dns.gmk.net.pl (91.205.75.167), fns1.42.pl (79.98.145.34), dns2.gmk.net.pl (85.14.80.253), fns2.42.pl (2001:41d0:701:1100::66c, 51.38.99.90)
|
| A | Good (1 - 3.0):: An average of 0.8 queries per domain name server required to find all ip addresses of all name servers.
|
| A | Info:: 4 different Name Servers found: dns.gmk.net.pl, dns2.gmk.net.pl, fns1.42.pl, fns2.42.pl, 4 Name Servers included in Delegation: dns.gmk.net.pl, dns2.gmk.net.pl, fns1.42.pl, fns2.42.pl, 4 Name Servers included in 1 Zone definitions: dns.gmk.net.pl, dns2.gmk.net.pl, fns1.42.pl, fns2.42.pl, 1 Name Servers listed in SOA.Primary: dns.gmk.net.pl.
|
| A | Good: Only one SOA.Primary Name Server found.: dns.gmk.net.pl.
|
| A | Good: SOA.Primary Name Server included in the delegation set.: dns.gmk.net.pl.
|
| 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: dns.gmk.net.pl, dns2.gmk.net.pl, fns1.42.pl, fns2.42.pl
|
| 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: 4 different Name Servers found
|
| A | Good: Some Name Servers have IPv6 addresses: 1 Name Servers with IPv6 found (3 Name Servers without IPv6)
|
| A | Good: Name servers with different Top Level Domains / Public Suffix List entries found: 4 Name Servers, 2 Top Level Domains: pl, net.pl
|
| A | Good: Name Servers with different domain names found.: 2 different Domains found
|
| A | Good: Name servers with different Country locations found: 4 Name Servers, 2 Countries: DE, PL
|
| A | Info: Ipv4-Subnet-list: 4 Name Servers, 4 different subnets (first Byte): 51., 79., 85., 91., 4 different subnets (first two Bytes): 51.38., 79.98., 85.14., 91.205., 4 different subnets (first three Bytes): 51.38.99., 79.98.145., 85.14.80., 91.205.75.
|
| A | Excellent: Every Name Server IPv4-address starts with an unique Byte.
|
| A | Info: IPv6-Subnet-list: 1 Name Servers with IPv6, 1 different subnets (first block): 2001:, 1 different subnets (first two blocks): 2001:41d0:, 1 different subnets (first three blocks): 2001:41d0:0701:, 1 different subnets (first four blocks): 2001:41d0:0701:1100:
|
| Fatal: All Name Server IPv6 addresses from the same subnet.
|
| A | Info: Nameserver mit different domain names found. May be a problem with DNS-Updates
|
| A | Good: Nameserver supports TCP connections: 5 good Nameserver
|
| A | Good: Nameserver supports Echo Capitalization: 5 good Nameserver
|
| A | Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 5 good Nameserver
|
| A | Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 5 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 certificates
|
| 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.
|
| A | Good: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
|
| https://gmk.net.pl/ 91.205.75.167
|
| 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://gmk.net.pl/ 2001:470:71:61::2
|
| 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.gmk.net.pl/ 91.205.75.167
|
| 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://91.205.75.167/ 91.205.75.167
|
| 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://[2001:0470:0071:0061:0000:0000:0000:0002]/ 2001:470:71:61::2
|
| 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://gmk.net.pl/ 91.205.75.167
|
| 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://gmk.net.pl/ 2001:470:71:61::2
|
| 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.gmk.net.pl/ 91.205.75.167
|
| 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://91.205.75.167/ 91.205.75.167
|
| 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://[2001:0470:0071:0061:0000:0000:0000:0002]/ 2001:470:71:61::2
|
| 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://mta-sts.gmk.net.pl/.well-known/mta-sts.txt 91.205.75.167
|
| 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.
|
| A | Good: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 1 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. 2 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. 12 external CSS / JavaScript 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, 12 complete.
|
| Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 4 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 2 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 6 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://www.gmk.net.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| 2.023 seconds
| Warning: 404 needs more then one second
|
| A | Duration: 949453 milliseconds, 949.453 seconds
|
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