1. General Results, most used to calculate the result A name "monexpertinfo.com" is domain, public suffix is "com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services" A Good: All ip addresses are public addresses A Good: No asked Authoritative Name Server had a timeout A https://www.monexpertinfo.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de https://www.monexpertinfo.com/produit/comment-ne-plus-retenir-ses-mot-de-passe/ Correct redirect https to https A Good: one preferred version: www is preferred A Good: every https has a Strict Transport Security Header A Good: HSTS has includeSubdomains - directive 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):3 complete Content-Type - header (4 urls) http://www.monexpertinfo.com/ 185.244.131.104 Url with incomplete Content-Type - header - missing charset A http://monexpertinfo.com/ 185.244.131.104 https://monexpertinfo.com/ Correct redirect http - https with the same domain name B Warning: HSTS max-age is too short - minimum 31536000 = 365 days required, 15552001 seconds = 180 days found B https://monexpertinfo.com/ 185.244.131.104 max-age=15552001; includeSubDomains; Critical: HSTS-Header has Parse-Errors. Empty entry, remove the semicolon at the end., Value of max-age is too small. Should be minimal one year = 31536000., Unknown directive found. Only max-age (with value), includeSubdomains or preload allowed. B https://www.monexpertinfo.com/ 185.244.131.104 max-age=15552001; includeSubDomains; Critical: HSTS-Header has Parse-Errors. Empty entry, remove the semicolon at the end., Value of max-age is too small. Should be minimal one year = 31536000., Unknown directive found. Only max-age (with value), includeSubdomains or preload allowed. B https://www.monexpertinfo.com/ 185.244.131.104 PHPSESSID=0bikb8epbi159chb6c042b0j98; Path=/; Domain=www.monexpertinfo.com Cookie sent via https, but not marked as secure B https://www.monexpertinfo.com/ 185.244.131.104 kaqOXbovPiEc=iZqpu8IaxU4E; Path=/; Domain=www.monexpertinfo.com; Expires=2020-03-22 19:45:50 Cookie sent via https, but not marked as secure B https://www.monexpertinfo.com/ 185.244.131.104 czIgXbRoTEqmwxON=0K%40IF%2A7tU8bn52J6; Path=/; Domain=www.monexpertinfo.com; Expires=2020-03-22 19:45:50 Cookie sent via https, but not marked as secure 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. H Fatal error: http result with http-status 200, no encryption. Add a redirect http ⇒ https, so every connection is secure. 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. I https://www.monexpertinfo.com/ 185.244.131.104 Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part. 2. Header-Checks (alpha, started 2022-10-23, may be buggy / incomplete) 3. DNS- and NameServer - Checks 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: dns113.ovh.net,ns113.ovh.net 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 A Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 4 good Nameserver A Good: All SOA have the same Serial Number 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. 4. Content- and Performance-critical Checks https://www.monexpertinfo.com/produit/comment-ne-plus-retenir-ses-mot-de-passe/ 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 supports GZip. https://www.monexpertinfo.com/ 185.244.131.104 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://www.monexpertinfo.com/produit/comment-ne-plus-retenir-ses-mot-de-passe/ 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://www.monexpertinfo.com/ 185.244.131.104 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.monexpertinfo.com/produit/comment-ne-plus-retenir-ses-mot-de-passe/ 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.monexpertinfo.com/ 185.244.131.104 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.monexpertinfo.com/produit/comment-ne-plus-retenir-ses-mot-de-passe/ 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. Warning: CSS / JavaScript found without GZip support. Send these ressources with GZip. 2 external CSS / JavaScript files without GZip found - 20 with GZip, 22 complete A Good: All images with internal compression not sent via GZip. Images (.png, .jpg) are already compressed, so an additional GZip isn't helpful. 44 images (type image/png, image/jpg) found without additional GZip. 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. 10 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 10 with Cache-Control max-age too short (minimum 7 days), 2 with Cache-Control long enough, 22 complete. Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 54 image 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, 54 complete. A Good: All checked attribute values are enclosed in quotation marks (" or '). A Good: Some img-elements have a valid alt-attribute.: 54 img-elements found, 16 img-elements with correct alt-attributes (defined, not an empty value). 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.: 38 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://monexpertinfo.com/ 185.244.131.104 Strict-Transport-Security: max-age=15552001; includeSubDomains; Parse Error - Header can't be parsed https://www.monexpertinfo.com/ 185.244.131.104 Strict-Transport-Security: max-age=15552001; includeSubDomains; Parse Error - Header can't be parsed https://monexpertinfo.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Strict-Transport-Security: max-age=15552001; includeSubDomains; Parse Error - Header can't be parsed https://www.monexpertinfo.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Strict-Transport-Security: max-age=15552001; includeSubDomains; Parse Error - Header can't be parsed https://www.monexpertinfo.com/produit/comment-ne-plus-retenir-ses-mot-de-passe/ Strict-Transport-Security: max-age=15552001; includeSubDomains; Parse Error - Header can't be parsed A Duration: 840584 milliseconds, 840.584 seconds