| 1. General Results, most used to calculate the result |
| A | name "grapheneos.org" is domain, public suffix is ".org", top-level-domain is ".org", top-level-domain-type is "generic", tld-manager is "Public Interest Registry (PIR)", num .org-domains preloaded: 10357 (complete: 276475)
|
| A | Good: All ip addresses are public addresses
|
| A | Good: Minimal 2 ip addresses per domain name found: grapheneos.org has 2 different ip addresses (authoritative).
|
| A | Good: Minimal 2 ip addresses per domain name found: www.grapheneos.org has 2 different ip addresses (authoritative).
|
| A | Good: Ipv4 and Ipv6 addresses per domain name found: grapheneos.org has 1 ipv4, 1 ipv6 addresses
|
| A | Good: Ipv4 and Ipv6 addresses per domain name found: www.grapheneos.org has 1 ipv4, 1 ipv6 addresses
|
| A | Good: No asked Authoritative Name Server had a timeout
|
| A | https://grapheneos.org/ 87.249.129.100
|
| Good: Valid DANE - entry found: signed Data _443._tcp.grapheneos.org: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 0434d5437ca3ea5a60e3920df933a679e60d644111cc6cb2583613e8fc81d285 confirms the Certificate with the same value
|
| A | https://grapheneos.org/ 2a02:6ea0:c75f::1
|
| Good: Valid DANE - entry found: signed Data _443._tcp.grapheneos.org: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 0434d5437ca3ea5a60e3920df933a679e60d644111cc6cb2583613e8fc81d285 confirms the Certificate with the same value
|
| A | https://87.249.129.100/ 87.249.129.100
|
| Good: Valid DANE - entry found: signed Data _443._tcp.grapheneos.org: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 0434d5437ca3ea5a60e3920df933a679e60d644111cc6cb2583613e8fc81d285 confirms the Certificate with the same value
|
| A | https://[2a02:6ea0:c75f:0000:0000:0000:0000:0001]/ 2a02:6ea0:c75f::1
|
| Good: Valid DANE - entry found: signed Data _443._tcp.grapheneos.org: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 0434d5437ca3ea5a60e3920df933a679e60d644111cc6cb2583613e8fc81d285 confirms the Certificate with the same value
|
| A | https://mta-sts.grapheneos.org/.well-known/mta-sts.txt 91.246.30.4
|
| Good: Valid DANE - entry found: signed Data _443._tcp.grapheneos.org: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 0434d5437ca3ea5a60e3920df933a679e60d644111cc6cb2583613e8fc81d285 confirms the Certificate with the same value
|
| A | https://mta-sts.grapheneos.org/.well-known/mta-sts.txt 2602:f4d9:5:3::1
|
| Good: Valid DANE - entry found: signed Data _443._tcp.grapheneos.org: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 0434d5437ca3ea5a60e3920df933a679e60d644111cc6cb2583613e8fc81d285 confirms the Certificate with the same value
|
| 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: HSTS has preload directive
|
| A | Excellent: Domain is in the Google-Preload-List
|
| A | Excellent: Domain is in the Mozilla/Firefox-Preload-List
|
| A | HSTS-Preload-Status: Preloaded. 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://grapheneos.org/ 87.249.129.100
| https://grapheneos.org/
| Correct redirect http - https with the same domain name
|
| A | http://grapheneos.org/ 2a02:6ea0:c75f::1
| https://grapheneos.org/
| Correct redirect http - https with the same domain name
|
| A | http://www.grapheneos.org/ 87.249.129.100
| https://www.grapheneos.org/
| Correct redirect http - https with the same domain name
|
| A | http://www.grapheneos.org/ 2a02:6ea0:c75f::1
| https://www.grapheneos.org/
| Correct redirect http - https with the same domain name
|
| D | http://grapheneos.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 87.249.129.100
| http://yto.grapheneos.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| Wrong redirect one domain http to other domain http. First redirect to https without changing the domain, so no new dns query is required. 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.
|
| D | http://grapheneos.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a02:6ea0:c75f::1
| http://yto.grapheneos.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| Wrong redirect one domain http to other domain http. First redirect to https without changing the domain, so no new dns query is required. 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.
|
| D | http://www.grapheneos.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 87.249.129.100
| http://yto.grapheneos.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| Wrong redirect one domain http to other domain http. First redirect to https without changing the domain, so no new dns query is required. 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.
|
| D | http://www.grapheneos.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a02:6ea0:c75f::1
| http://yto.grapheneos.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| Wrong redirect one domain http to other domain http. First redirect to https without changing the domain, so no new dns query is required. 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://grapheneos.org/ 87.249.129.100
|
| Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
|
| I | https://grapheneos.org/ 2a02:6ea0:c75f::1
|
| Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
|
| 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 grapheneos.org, 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.grapheneos.org, 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 grapheneos.org, 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 www.grapheneos.org, 2 ip addresses.
|
| A | Good: _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Domainname: _mta-sts.grapheneos.org
|
| A | Good: _mta-sts TXT record is valid.
|
| A | Good: Subdomain mta-sts found: Subdomain-name: mta-sts.grapheneos.org, ip : 91.246.30.4
|
| A | Good: Subdomain mta-sts found: Subdomain-name: mta-sts.grapheneos.org, ip : 2602:f4d9:5:3::1
|
| A | Good: Certificate of subdomain is valid. mta-sts.grapheneos.org, ip : 91.246.30.4
|
| A | Good: Certificate of subdomain is valid. mta-sts.grapheneos.org, ip : 2602:f4d9:5:3::1
|
| A | Good: /.well-known/mta-sts.txt with http status 200 found. Complete path: https://mta-sts.grapheneos.org/.well-known/mta-sts.txt - ip : 91.246.30.4
|
| A | Good: /.well-known/mta-sts.txt with http status 200 found. Complete path: https://mta-sts.grapheneos.org/.well-known/mta-sts.txt - ip : 2602:f4d9:5:3::1
|
| A | Good: mta-sts.txt has the required names "version", "mode", "max_age". mta-sts.grapheneos.org, ip : 91.246.30.4
|
| A | Good: mta-sts.txt has the required names "version", "mode", "max_age". mta-sts.grapheneos.org, ip : 2602:f4d9:5:3::1
|
| A | Good: Minimal one mx definition found. mta-sts.grapheneos.org, ip : 91.246.30.4
|
| A | Good: Minimal one mx definition found. mta-sts.grapheneos.org, ip : 2602:f4d9:5:3::1
|
| A | Excellent: Complete and valid MTA-STS found!
|
| 2. Header-Checks |
| F | grapheneos.org 87.249.129.100
| Content-Security-Policy
| Critical: Header with syntax errors found: default-src 'none'; connect-src 'self' https://releases.grapheneos.org/; font-src 'self'; img-src 'self'; manifest-src 'self'; script-src 'self'; style-src 'self'; webrtc 'block'; form-action 'none'; frame-ancestors 'none'; base-uri 'none'; require-trusted-types-for 'script'; trusted-types 'none'
|
| E |
|
| Critical: Unknown Header-Element found webrtc 'block'
|
| E |
|
| Critical: Unknown Header-Element found webrtc
|
| E |
|
| Critical: Unknown Header-Element found 'block'
|
| 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=(), battery=(), bluetooth=(), camera=(), clipboard-read=(), clipboard-write=(), display-capture=(), document-domain=(), encrypted-media=(), fullscreen=(), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), serial=(), speaker-selection=(), sync-xhr=(), usb=(), xr-spatial-tracking=()
|
| A |
| X-Frame-Options
| Ok: Header without syntax errors found: DENY
|
| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. DENY. 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 |
| X-Xss-Protection
| Ok: Header without syntax errors found: 0
|
| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. 0
|
| A |
| Cross-Origin-Embedder-Policy
| Ok: Header without syntax errors found: require-corp
|
| A |
| Cross-Origin-Opener-Policy
| Ok: Header without syntax errors found: same-origin
|
| A |
| Cross-Origin-Resource-Policy
| Ok: Header without syntax errors found: same-origin
|
| F | grapheneos.org 2a02:6ea0:c75f::1
| Content-Security-Policy
| Critical: Header with syntax errors found: default-src 'none'; connect-src 'self' https://releases.grapheneos.org/; font-src 'self'; img-src 'self'; manifest-src 'self'; script-src 'self'; style-src 'self'; webrtc 'block'; form-action 'none'; frame-ancestors 'none'; base-uri 'none'; require-trusted-types-for 'script'; trusted-types 'none'
|
| E |
|
| Critical: Unknown Header-Element found webrtc 'block'
|
| E |
|
| Critical: Unknown Header-Element found webrtc
|
| E |
|
| Critical: Unknown Header-Element found 'block'
|
| 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=(), battery=(), bluetooth=(), camera=(), clipboard-read=(), clipboard-write=(), display-capture=(), document-domain=(), encrypted-media=(), fullscreen=(), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), serial=(), speaker-selection=(), sync-xhr=(), usb=(), xr-spatial-tracking=()
|
| A |
| X-Frame-Options
| Ok: Header without syntax errors found: DENY
|
| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. DENY. 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 |
| X-Xss-Protection
| Ok: Header without syntax errors found: 0
|
| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. 0
|
| A |
| Cross-Origin-Embedder-Policy
| Ok: Header without syntax errors found: require-corp
|
| A |
| Cross-Origin-Opener-Policy
| Ok: Header without syntax errors found: same-origin
|
| A |
| Cross-Origin-Resource-Policy
| Ok: Header without syntax errors found: same-origin
|
| 3. DNS- and NameServer - Checks |
| A | Info:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
|
| A | Info:: 2 Queries complete, 2 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.ns1.grapheneos.org (23.149.124.1, 2602:f4d9::1), ns2.grapheneos.org (23.149.125.1, 2602:f4d9:1::1)
|
| A | Good (1 - 3.0):: An average of 1.0 queries per domain name server required to find all ip addresses of all name servers.
|
| A | Info:: 2 different Name Servers found: ns1.grapheneos.org, ns2.grapheneos.org, 2 Name Servers included in Delegation: ns1.grapheneos.org, ns2.grapheneos.org, 2 Name Servers included in 1 Zone definitions: ns1.grapheneos.org, ns2.grapheneos.org, 1 Name Servers listed in SOA.Primary: ns1.grapheneos.org.
|
| A | Good: Only one SOA.Primary Name Server found.: ns1.grapheneos.org.
|
| A | Good: SOA.Primary Name Server included in the delegation set.: ns1.grapheneos.org.
|
| 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: ns1.grapheneos.org, ns2.grapheneos.org
|
| 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
|
| A | Good: All name servers have ipv4- and ipv6-addresses.: 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: org
|
| 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: grapheneos.org
|
| Warning: All Name Servers from the same Country / IP location.: 2 Name Servers, 1 Countries: CA
|
| A | Info: Ipv4-Subnet-list: 2 Name Servers, 1 different subnets (first Byte): 23., 1 different subnets (first two Bytes): 23.149., 2 different subnets (first three Bytes): 23.149.124., 23.149.125.
|
| A | Good: Name Server IPv4-addresses from different subnet found:
|
| A | Info: IPv6-Subnet-list: 2 Name Servers with IPv6, 1 different subnets (first block): 2602:, 1 different subnets (first two blocks): 2602:f4d9:, 2 different subnets (first three blocks): 2602:f4d9:0000:, 2602:f4d9:0001:, 2 different subnets (first four blocks): 2602:f4d9:0000:0000:, 2602:f4d9:0001:0000:
|
| A | Good: Name Server IPv6 addresses from different subnets found.
|
| A | Good: Nameserver supports TCP connections: 4 good Nameserver
|
| A | Good: Nameserver supports Echo Capitalization: 4 good Nameserver
|
| A | Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 4 good Nameserver
|
| X | Nameserver Timeout checking EDNS512: d0.org.afilias-nst.org
|
| A | Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 4 good Nameserver
|
| Nameserver doesn't pass all EDNS-Checks: a0.org.afilias-nst.info: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found (fra1.micro.hosts.meta.redstone.afilias-nst.info-1740000113). COOKIE: ok. CLIENTSUBNET: ok.
|
| 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
|
| A | Good: CAA entries found, creating certificate is limited: mail is allowed to create certificates
|
| A | Good: CAA entries found, creating certificate is limited: vmc is allowed to create certificates
|
| Warning: Unknown CAA found: mail isn't defined. Unknown entry. May be wrong written, may be not longer valid. May be a missing entry in this tool.
|
| Warning: Unknown CAA found: vmc isn't defined. Unknown entry. May be wrong written, may be not longer valid. May be a missing entry in this tool.
|
| 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).
|
| A | Good: Every https result with status 200 has a minified Html-Content with a quota lower then 110 %.
|
| A | Good: Every https connection via port 443 supports the http/2 protocol via ALPN.
|
| https://grapheneos.org/ 87.249.129.100
|
| 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.
|
| https://grapheneos.org/ 2a02:6ea0:c75f::1
|
| 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 svg-Images greater 1024 Bytes without internal compression are compressed. Svg is an Xml-Application, so Compression reduces the size of the file. 8 images (type image/svg+xml, image/x-icon, image/vnd.microsoft.icon) found with compression.
|
| A | Good: All CSS / JavaScript files are sent with a long Cache-Control header (minimum 7 days). So the browser can re-use these files, no download is required. 4 external CSS / JavaScript files with long Cache-Control max-age found
|
| 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. 8 image files with long Cache-Control max-age found
|
| A | Good: Some checked attribute values are enclosed in quotation marks (" or ').: 138 Html-Elements checked, 2 without problems.
|
| I | Wrong: Attribute values found, not enclosed in quotation marks (" or ').: 136 Html-Elements with attributes and missing enclosed quotation marks found. 198 wrong attributes.
|
| 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.: 0 img-elements without alt-attribute, 8 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
|
| A | Duration: 253006 milliseconds, 253.006 seconds
|
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