| 1. General Results, most used to calculate the result |
A | name "cdljobshoustontx.com" is domain, public suffix is "com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services"
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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 | 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: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
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B | https://cdljobshoustontx.com/ 35.226.117.55
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| Missing HSTS-Header
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B | https://www.cdljobshoustontx.com
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| Missing HSTS-Header
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B | https://www.cdljobshoustontx.com/ 35.226.117.55
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| Missing HSTS-Header
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E | http://cdljobshoustontx.com/ 35.226.117.55
| https://www.cdljobshoustontx.com
| Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. 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. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
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N | https://cdljobshoustontx.com/ 35.226.117.55
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| Error - Certificate isn't trusted, RemoteCertificateChainErrors
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N | https://www.cdljobshoustontx.com
| https://cdljobshoustontx.com/
| Error - Certificate isn't trusted, RemoteCertificateChainErrors
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N | https://www.cdljobshoustontx.com/ 35.226.117.55
| https://cdljobshoustontx.com/
| Error - Certificate isn't trusted, RemoteCertificateChainErrors
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O | Old connection: SHA1 as Hash Algorithm is deprecated. Switch to SHA256 or SHA384. If your certificate has SHA256, first check your domain via ssllabs.com and update weak Cipher Suites. Forward Secrecy support is required. The part "Cipher Suites" should have a preference. First Cipher Suite with SHA instead of SHA256 or higher - that's the problem, change that. If that doesn't help, check if there is an old Firewall / router or something else, that supports only SHA1. Update that component.
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R | http://cdljobshoustontx.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 35.226.117.55
| https://www.cdljobshoustontx.com.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| Redirect to not existing domain
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R | http://www.cdljobshoustontx.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 35.226.117.55
| https://www.cdljobshoustontx.com.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
| Redirect to not existing domain
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| 2. Header-Checks |
| 3. DNS- and NameServer - Checks |
A | Good: Nameserver supports TCP connections: 8 good Nameserver
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A | Good: Nameserver supports Echo Capitalization: 8 good Nameserver
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A | Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 8 good Nameserver
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A | Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 8 good Nameserver
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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 |
| https://www.cdljobshoustontx.com.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
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| Fatal: Check of /.well-known/acme-challenge/random-filename redirects to not-existing domain. Creating a Letsencrypt certificate via http-01 challenge can't work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
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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: 44460 milliseconds, 44.460 seconds
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