| 1. General Results, most used to calculate the result |
| A | name "doh.tiar.app" is subdomain, public suffix is ".app", top-level-domain is ".app", top-level-domain-type is "generic", tld-manager is "Charleston Road Registry Inc.", num .app-domains preloaded: 44 (complete: 228216)
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| A | Good: All ip addresses are public addresses
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| A | Good: Minimal 2 ip addresses per domain name found: doh.tiar.app has 2 different ip addresses (authoritative).
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| A | Good: Ipv4 and Ipv6 addresses per domain name found: doh.tiar.app has 1 ipv4, 1 ipv6 addresses
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| A | Good: No asked Authoritative Name Server had a timeout
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| A | DNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
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| A | Good: destination is https
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| A | Good - only one version with Http-Status 200
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| A | Good: one preferred version: non-www is preferred
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| A | Good: No cookie sent via http.
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| A | Good: HSTS has preload directive
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| 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.
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| A | Good: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
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| A | http://doh.tiar.app/ 174.138.29.175
| https://doh.tiar.app/
| Correct redirect http - https with the same domain name
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| A | http://doh.tiar.app/ 2400:6180:0:d0::5f73:4001
| https://doh.tiar.app/
| Correct redirect http - https with the same domain name
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| N | https://174.138.29.175/ 174.138.29.175
|
| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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| N | https://[2400:6180:0000:00d0:0000:0000:5f73:4001]/ 2400:6180:0:d0::5f73:4001
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| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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| 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 doh.tiar.app, 2 ip addresses.
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| 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 doh.tiar.app, 2 ip addresses, 1 different http results.
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| 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.doh.tiar.app
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| 2. Header-Checks |
| A | doh.tiar.app 174.138.29.175
| Content-Security-Policy
| Ok: Header without syntax errors found: default-src 'none';
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| A |
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| Good: default-src directive only with 'none' or 'self', additional sources are blocked.
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| A |
|
| Good: default-src without 'unsafe-inline' or 'unsave-eval'.
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| 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.
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| E |
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| Bad: No frame-ancestors directive found. Use one to limit the pages allowed to use this page in frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used.
|
| E |
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| Bad: No base-uri directive found. Use one to limit 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.
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| A |
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| Good: No object-src found, but the default-src used as fallback is defined and restricted.
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| A |
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| Good: No script-src found, but the default-src used as fallback is defined and restricted.
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| A |
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| Good: frame-src without data: defined or frame-src missing and the default-src used as fallback not allows the data: schema. That blocks hidden code injection. Insert <iframe src="data:text/html;charset=utf-8;base64,PCFET0NUWVBFIGh0bWw+PGh0bWw+PGJvZHk+PHA+YmVmb3JlPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPmFsZXJ0KCdYU1MnKTwvc2NyaXB0PjxwPmFmdGVyPC9ib2R5PjwvaHRtbD4="></iframe> in your page and see what happens.
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| A |
| X-Content-Type-Options
| Ok: Header without syntax errors found: nosniff
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| A |
| Referrer-Policy
| Ok: Header without syntax errors found: no-referrer
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| A |
| Permissions-Policy
| Ok: Header without syntax errors found: accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=()
|
| A |
| X-Frame-Options
| Ok: Header without syntax errors found: DENY
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| 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.
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| A |
| X-Xss-Protection
| Ok: Header without syntax errors found: 1; mode=block
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| B |
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| Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block
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| A | doh.tiar.app 2400:6180:0:d0::5f73:4001
| Content-Security-Policy
| Ok: Header without syntax errors found: default-src 'none';
|
| A |
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| Good: default-src directive only with 'none' or 'self', additional sources are blocked.
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| A |
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| Good: default-src without 'unsafe-inline' or 'unsave-eval'.
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| 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.
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| E |
|
| Bad: No frame-ancestors directive found. Use one to limit the pages allowed to use this page in frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used.
|
| E |
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| Bad: No base-uri directive found. Use one to limit 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.
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| A |
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| Good: No object-src found, but the default-src used as fallback is defined and restricted.
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| A |
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| Good: No script-src found, but the default-src used as fallback is defined and restricted.
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| A |
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| Good: frame-src without data: defined or frame-src missing and the default-src used as fallback not allows the data: schema. That blocks hidden code injection. Insert <iframe src="data:text/html;charset=utf-8;base64,PCFET0NUWVBFIGh0bWw+PGh0bWw+PGJvZHk+PHA+YmVmb3JlPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPmFsZXJ0KCdYU1MnKTwvc2NyaXB0PjxwPmFmdGVyPC9ib2R5PjwvaHRtbD4="></iframe> in your page and see what happens.
|
| 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=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=()
|
| 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.
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| A |
| X-Xss-Protection
| Ok: Header without syntax errors found: 1; mode=block
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| B |
|
| Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block
|
| 3. DNS- and NameServer - Checks |
| A | Info:: 13 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
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| A | Info:: 13 Queries complete, 13 with IPv6, 0 with IPv4.
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| A | Good: All DNS Queries done via IPv6.
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| Ok (4 - 8):: An average of 3.3 queries per domain name server required to find all ip addresses of all name servers.
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| A | Info:: 4 different Name Servers found: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com, 4 Name Servers included in Delegation: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com, 4 Name Servers included in 1 Zone definitions: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com, 1 Name Servers listed in SOA.Primary: ns-cloud-b1.googledomains.com.
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| A | Good: Only one SOA.Primary Name Server found.: ns-cloud-b1.googledomains.com.
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| A | Good: SOA.Primary Name Server included in the delegation set.: ns-cloud-b1.googledomains.com.
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| 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: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com
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| A | Good: All Name Server Domain Names have a Public Suffix.
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| A | Good: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
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| A | Good: All Name Server ip addresses are public.
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| A | Good: Minimal 2 different name servers (public suffix and public ip address) found: 4 different Name Servers found
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| A | Good: All name servers have ipv4- and ipv6-addresses.: 4 different Name Servers found
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| 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.: 4 Name Servers, 1 Top Level Domain: com
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| 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: googledomains.com
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| Warning: All Name Servers from the same Country / IP location.: 4 Name Servers, 1 Countries: US
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| A | Info: Ipv4-Subnet-list: 4 Name Servers, 1 different subnets (first Byte): 216., 1 different subnets (first two Bytes): 216.239., 4 different subnets (first three Bytes): 216.239.32., 216.239.34., 216.239.36., 216.239.38.
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| A | Good: Name Server IPv4-addresses from different subnet found:
|
| A | Info: IPv6-Subnet-list: 4 Name Servers with IPv6, 1 different subnets (first block): 2001:, 1 different subnets (first two blocks): 2001:4860:, 1 different subnets (first three blocks): 2001:4860:4802:, 4 different subnets (first four blocks): 2001:4860:4802:0032:, 2001:4860:4802:0034:, 2001:4860:4802:0036:, 2001:4860:4802:0038:
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| A | Good: Name Server IPv6 addresses from different subnets found.
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| A | Good: Nameserver supports TCP connections: 2 good Nameserver
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| A | Good: Nameserver supports Echo Capitalization: 2 good Nameserver
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| A | Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 2 good Nameserver
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| A | Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 2 good Nameserver
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| Nameserver doesn't pass all EDNS-Checks: ns-cloud-b1.googledomains.com: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
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| A | Good: All SOA have the same Serial Number
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| A | Good: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create certificates
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| A | Good: CAA entries found, creating certificate is limited: no CAA is allowed to create wildcard certificates
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| 4. Content- and Performance-critical Checks |
| https://doh.tiar.app/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
|
| Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 201, 202, 203 or 204. Creating a Letsencrypt certificate via http-01 challenge can't work. A http status 301-309 (Redirect to another domain or port 80 / 443) or a http status 404 - Not Found is expected, if the test file doesn't exist. Looks like the webserver isn't configured, perhaps it's an answer of your hoster. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
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| https://doh.tiar.app/ 174.138.29.175
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| Warning: https result with status 200 and size greater then 1024 Bytes without Compression found. Add Compression support (gzip, deflate, br - these are checked) so the html content is compressed.
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| https://doh.tiar.app/ 2400:6180:0:d0::5f73:4001
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| Warning: https result with status 200 and size greater then 1024 Bytes without Compression found. Add Compression support (gzip, deflate, br - these are checked) so the html content is compressed.
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| A | Good: Every https result with status 200 has a minified Html-Content with a quota lower then 110 %.
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| A | Good: Every https connection via port 443 supports the http/2 protocol via ALPN.
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| A | Good: All checked attribute values are enclosed in quotation marks (" or ').
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| A | Info: No img element found, no alt attribute checked
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| 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
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| A | Duration: 301934 milliseconds, 301.934 seconds
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