| 1. General Results, most used to calculate the result |
| A | name "kelderro.nl" is domain, public suffix is ".nl", top-level-domain is ".nl", top-level-domain-type is "country-code", Country is Netherlands (the), tld-manager is "SIDN (Stichting Internet Domeinregistratie Nederland)", num .nl-domains preloaded: 4674 (complete: 216710)
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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: kelderro.nl has 2 different ip addresses (authoritative).
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| A | Good: Minimal 2 ip addresses per domain name found: www.kelderro.nl has 2 different ip addresses (authoritative).
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| A | Good: Ipv4 and Ipv6 addresses per domain name found: kelderro.nl has 1 ipv4, 1 ipv6 addresses
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| A | Good: Ipv4 and Ipv6 addresses per domain name found: www.kelderro.nl 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 | 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: every https has a Strict Transport Security Header
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| A | Good: HSTS max-age is long enough, 31536000 seconds = 365 days
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| A | Good: HSTS has includeSubdomains - directive
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| A | Good: HSTS has preload directive
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| Warning: HSTS preload sent, but not in Preload-List. Never send a preload directive if you don't know what preload means. Check https://hstspreload.org/ to learn the basics about the Google-Preload list. If you send a preload directive, you should **immediately** add your domain to the HSTS preload list via https://hstspreload.org/ . If Google accepts the domain, so the status is "pending": Note that new entries are hardcoded into the Chrome source code and can take several months before they reach the stable version. So you will see this message some months. If you don't want that or if you don't understand "preload", but if you send a preload directive and if you have correct A-redirects, everybody can add your domain to that list. Then you may have problems, it's not easy to undo that. So if you don't want your domain preloaded, remove the preload directive.
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| A |
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| HSTS-Preload-Status: Pending. Submission of the domain successful, domain is pending. 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://kelderro.nl/ 209.97.181.98
| https://kelderro.nl/
| Correct redirect http - https with the same domain name
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| A | http://kelderro.nl/ 2a03:b0c0:1:e0::6a1:1001
| https://kelderro.nl/
| Correct redirect http - https with the same domain name
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| A | http://www.kelderro.nl/ 209.97.181.98
| https://www.kelderro.nl/
| Correct redirect http - https with the same domain name
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| A | http://www.kelderro.nl/ 2a03:b0c0:1:e0::6a1:1001
| https://www.kelderro.nl/
| Correct redirect http - https with the same domain name
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| M | https://209.97.181.98/ 209.97.181.98
|
| Misconfiguration - main pages should never send http status 400 - 499
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| M | https://[2a03:b0c0:0001:00e0:0000:0000:06a1:1001]/ 2a03:b0c0:1:e0::6a1:1001
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| Misconfiguration - main pages should never send http status 400 - 499
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| N | https://209.97.181.98/ 209.97.181.98
|
| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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| N | https://[2a03:b0c0:0001:00e0:0000:0000:06a1:1001]/ 2a03:b0c0:1:e0::6a1:1001
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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 kelderro.nl, 2 ip addresses.
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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 www.kelderro.nl, 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 kelderro.nl, 2 ip addresses, 1 different http results.
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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 www.kelderro.nl, 2 ip addresses, 1 different http results.
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| A | Good: _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Domainname: _mta-sts.kelderro.nl
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| B | Bad: _mta-sts TXT found, but invalid
|
| 2. Header-Checks |
| A | kelderro.nl 209.97.181.98
| Content-Security-Policy
| Ok: Header without syntax errors found: default-src 'self'; script-src 'sha256-BnjXkTiBlrZfyhP3h0FmYromlVCUQX8MF5gn2fzkJaE=' 'sha256-BZuiXmUyeDMe4RCNzBEmazwhjA5qJPJVUjCxPRBhCDc='; style-src 'sha256-sZ8ND5BwsoDFtkUAJetISONc02MYkJ9DNuNxVq57LCM='
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| A |
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| Good: default-src directive only with 'none' or 'self', additional sources are blocked.
|
| A |
|
| Good: default-src without 'unsafe-inline' or 'unsave-eval'.
|
| 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.
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| 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: script-src without 'unsafe-inline' and 'unsafe-eval' found. That's the recommended configuration.
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| A |
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| Good: script-src without * and a scheme found.
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| A |
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| Good: script-src without data: schema found. Why is this important? The data: schema allows hidden code injection. Insert <script src='data:application/javascript;base64,YWxlcnQoJ1hTUycpOw=='></script> in your page and see what happens.
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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-when-downgrade
|
| A |
| Permissions-Policy
| Ok: Header without syntax errors found: geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()
|
| A |
| X-Frame-Options
| Ok: Header without syntax errors found: SAMEORIGIN
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| 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.
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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
|
| A | kelderro.nl 2a03:b0c0:1:e0::6a1:1001
| Content-Security-Policy
| Ok: Header without syntax errors found: default-src 'self'; script-src 'sha256-BnjXkTiBlrZfyhP3h0FmYromlVCUQX8MF5gn2fzkJaE=' 'sha256-BZuiXmUyeDMe4RCNzBEmazwhjA5qJPJVUjCxPRBhCDc='; style-src 'sha256-sZ8ND5BwsoDFtkUAJetISONc02MYkJ9DNuNxVq57LCM='
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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'.
|
| 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 |
|
| 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: script-src without 'unsafe-inline' and 'unsafe-eval' found. That's the recommended configuration.
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| A |
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| Good: script-src without * and a scheme found.
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| A |
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| Good: script-src without data: schema found. Why is this important? The data: schema allows hidden code injection. Insert <script src='data:application/javascript;base64,YWxlcnQoJ1hTUycpOw=='></script> in your page and see what happens.
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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-when-downgrade
|
| A |
| Permissions-Policy
| Ok: Header without syntax errors found: geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()
|
| 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 |
| 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
|
| 3. DNS- and NameServer - Checks |
| A | Info:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
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| A | Info:: 7 Queries complete, 7 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 3.5 queries per domain name server required to find all ip addresses of all name servers.
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| A | Info:: 2 different Name Servers found: alec.ns.cloudflare.com, dell.ns.cloudflare.com, 2 Name Servers included in Delegation: alec.ns.cloudflare.com, dell.ns.cloudflare.com, 2 Name Servers included in 1 Zone definitions: alec.ns.cloudflare.com, dell.ns.cloudflare.com, 1 Name Servers listed in SOA.Primary: alec.ns.cloudflare.com.
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| A | Good: Only one SOA.Primary Name Server found.: alec.ns.cloudflare.com.
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| A | Good: SOA.Primary Name Server included in the delegation set.: alec.ns.cloudflare.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: alec.ns.cloudflare.com, dell.ns.cloudflare.com
|
| 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: 2 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.: 2 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: 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, 3 different subnets (first Byte): 108., 172., 173., 3 different subnets (first two Bytes): 108.162., 172.64., 173.245., 6 different subnets (first three Bytes): 108.162.192., 108.162.193., 172.64.32., 172.64.33., 173.245.58., 173.245.59.
|
| 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
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| 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: comodoca.com is allowed to create certificates
|
| A | Good: CAA entries found, creating certificate is limited: digicert.com is allowed to create certificates
|
| 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: pki.goog is allowed to create certificates
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| A | Good: CAA entries found, creating certificate is limited: comodoca.com is allowed to create wildcard-certificates
|
| A | Good: CAA entries found, creating certificate is limited: digicert.com is allowed to create wildcard-certificates
|
| A | Good: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create wildcard-certificates
|
| A | Good: CAA entries found, creating certificate is limited: pki.goog is allowed to create wildcard-certificates
|
| 4. Content- and Performance-critical Checks |
| https://kelderro.nl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
|
| Warning: Not existing ACME-file, but Server sends 200, not 404 or redirect. May be a problem creating a Letsencrypt certificate. Checking /.well-known/acme-challenge/random-filename - a http status 404 - Not Found - is expected. If your server sends content and a http status 200, the validation file (87 bytes, token, dot and the hash of the public part of the account key) may be invisible, so Letsencrypt can't validate your domain. If it is an application that sends this content, perhaps create an exception, so /.well-known/acme-challenge sends raw files. Or create a redirect to another domain and / or port 443, but your Letsencrypt client must support such a solution. Certbot: Use webroot as authenticator - https://certbot.eff.org/docs/using.html 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://kelderro.nl/ 209.97.181.98
|
| 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://kelderro.nl/ 2a03:b0c0:1:e0::6a1:1001
|
| 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://kelderro.nl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
|
| 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://kelderro.nl/ 209.97.181.98
|
| 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://kelderro.nl/ 2a03:b0c0:1:e0::6a1:1001
|
| 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://kelderro.nl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
|
| 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: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 3 external CSS / JavaScript files found
|
| 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. 3 external CSS / JavaScript files with long Cache-Control max-age found
|
| A | Good: All checked attribute values are enclosed in quotation marks (" or ').
|
| A | Info: No img element found, no alt attribute checked
|
| 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
|
| http://kelderro.nl/ 209.97.181.98
|
| Warning: HSTS header sent via http has no effect
|
| http://kelderro.nl/ 2a03:b0c0:1:e0::6a1:1001
|
| Warning: HSTS header sent via http has no effect
|
| http://www.kelderro.nl/ 209.97.181.98
|
| Warning: HSTS header sent via http has no effect
|
| http://www.kelderro.nl/ 2a03:b0c0:1:e0::6a1:1001
|
| Warning: HSTS header sent via http has no effect
|
| A | Duration: 257450 milliseconds, 257.450 seconds
|
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