| 1. General Results, most used to calculate the result |
| A | name "meet.cloudapps.lk" is subdomain, public suffix is "lk", top-level-domain-type is "country-code", Country is Sri Lanka, tld-manager is "Council for Information Technology
LK Domain Registrar"
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| A | Good: All ip addresses are public addresses
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| Warning: Only one ip address found: www.meet.cloudapps.lk has only one ip address.
|
| Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: www.meet.cloudapps.lk has no ipv6 address.
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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: www is preferred
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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: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):0 complete Content-Type - header (3 urls)
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| https://www.meet.cloudapps.lk/ 220.247.201.162
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| Url with incomplete Content-Type - header - missing charset
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| http://www.meet.cloudapps.lk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 220.247.201.162
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| Url with incomplete Content-Type - header - missing charset
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| https://220.247.201.162/ 220.247.201.162
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| Url with incomplete Content-Type - header - missing charset
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| A | http://www.meet.cloudapps.lk/ 220.247.201.162
| https://www.meet.cloudapps.lk/
| Correct redirect http - https with the same domain name
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| N | https://220.247.201.162/ 220.247.201.162
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| Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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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.meet.cloudapps.lk, 1 ip addresses, 1 different http results.
|
| 2. Header-Checks |
| 3. DNS- and NameServer - Checks |
| A |
|
| A |
|
| A | Info:: 9 different Name Servers found: c.nic.lk, d.nic.lk, l.nic.lk, m.nic.lk, ns.nic.lk, ns1.ac.lk, p.nic.lk, pendragon.cs.purdue.edu, t.nic.lk, 8 Name Servers included in Delegation: c.nic.lk, d.nic.lk, l.nic.lk, m.nic.lk, ns1.ac.lk, p.nic.lk, pendragon.cs.purdue.edu, t.nic.lk, 8 Name Servers included in 2 Zone definitions: c.nic.lk, d.nic.lk, l.nic.lk, m.nic.lk, ns1.ac.lk, p.nic.lk, pendragon.cs.purdue.edu, t.nic.lk, 1 Name Servers listed in SOA.Primary: ns.nic.lk.
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| A | Good: Only one SOA.Primary Name Server found.: ns.nic.lk.
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| Error: SOA.Primary Name Server not included in the delegation set.: ns.nic.lk.
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| A | Good: All Name Server Domain Names have a Public Suffix.
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| Error: Name Server Domain Names with Public Suffix and without ip address found.: 9 Name Servers without ipv4 and ipv6: c.nic.lk, d.nic.lk, l.nic.lk, m.nic.lk, ns.nic.lk, ns1.ac.lk, p.nic.lk, pendragon.cs.purdue.edu, t.nic.lk
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| A | Good: Name Servers with different domain names found.: 3 different Domains found
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| A |
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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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| Nameserver doesn't pass all EDNS-Checks: ns.nic.lk: 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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| Nameserver doesn't pass all EDNS-Checks: ns.nic.lk: 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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| Nameserver doesn't pass all EDNS-Checks: ns.nic.lk: 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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| Nameserver doesn't pass all EDNS-Checks: ns.nic.lk / 192.248.8.17: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: ok. COOKIE: fatal timeout. CLIENTSUBNET: ok.
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| 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.
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| 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.
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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://www.meet.cloudapps.lk/ 220.247.201.162
|
| 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://220.247.201.162/ 220.247.201.162
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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://www.meet.cloudapps.lk/ 220.247.201.162
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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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| https://220.247.201.162/ 220.247.201.162
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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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| https://www.meet.cloudapps.lk/ 220.247.201.162
|
| 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.
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| https://220.247.201.162/ 220.247.201.162
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| 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.
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| https://www.meet.cloudapps.lk/ 220.247.201.162
|
| 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.: 3 script elements without defer/async.
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| https://220.247.201.162/ 220.247.201.162
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| 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.: 3 script elements without defer/async.
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| A | Good: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 8 external CSS / JavaScript files found
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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. 8 external CSS / JavaScript 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, 8 complete.
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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: 489253 milliseconds, 489.253 seconds
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