| 1. General Results, most used to calculate the result |
| A | name "avaandmetefoorum.publicon.ee" is subdomain, public suffix is "ee", top-level-domain-type is "country-code", Country is Estonia, tld-manager is "Eesti Interneti Sihtasutus (EIS)"
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| A | Good: All ip addresses are public 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: every cookie sent via https is marked as secure
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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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| HSTS-Preload-Status: unknown. Domain never included in the Preload-list. 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://avaandmetefoorum.publicon.ee/ 217.146.69.25
| https://avaandmetefoorum.publicon.ee/
| Correct redirect http - https with the same domain name
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| 2. Header-Checks (Cross-Origin-* headers are alpha - started 2024-06-05) |
| 3. DNS- and NameServer - Checks |
| A | Good: Nameserver supports TCP connections: 1 good Nameserver
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| A | Good: Nameserver supports Echo Capitalization: 1 good Nameserver
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| A | Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 1 good Nameserver
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| A | Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 1 good Nameserver
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| Nameserver doesn't pass all EDNS-Checks: ns.zone.eu: 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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| Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.
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| 4. Content- and Performance-critical Checks |
| http://avaandmetefoorum.publicon.ee/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 217.146.69.25
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| 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.
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| A | Good: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
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| https://avaandmetefoorum.publicon.ee/ 217.146.69.25
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| 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.
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| https://avaandmetefoorum.publicon.ee/ 217.146.69.25
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| 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.
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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 CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 15 external CSS / JavaScript files found
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| 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. 1 images (type image/png, image/jpg) found without additional GZip. Not required because these images are already compressed
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| Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 1 external CSS / JavaScript files without Cache-Control-Header, 4 with Cache-Control, but no max-age, 2 with Cache-Control max-age too short (minimum 7 days), 8 with Cache-Control long enough, 15 complete.
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| Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 0 image files without Cache-Control-Header, 4 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 1 with Cache-Control long enough, 5 complete.
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| A | Good: All checked attribute values are enclosed in quotation marks (" or ').
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| A | Good: Some img-elements have a valid alt-attribute.: 5 img-elements found, 1 img-elements with correct alt-attributes (defined, not an empty value).
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| Wrong: img-elements without alt-attribute or empty alt-attribute found. The alt-attribute ("alternative") is required and should describe the img. So Screenreader and search engines are able to use these informations.: 4 img-elements without alt-attribute, 0 img-elements with empty alt-attribute found.
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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: 48920 milliseconds, 48.920 seconds
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