1. General Results, most used to calculate the result A name "webwarephpdevelopment.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 C Error - no version with Http-Status 200 H fatal error: No https - result with http-status 200, no encryption P https://webwarephpdevelopment.com/ 104.28.28.218 Error creating a TLS-Connection: TLSv1.3 found, but no connection via TLSv1.2 possible. Please activate TLSv1.2 P https://webwarephpdevelopment.com/ 104.28.29.218 Error creating a TLS-Connection: TLSv1.3 found, but no connection via TLSv1.2 possible. Please activate TLSv1.2 P https://webwarephpdevelopment.com/ 2606:4700:30::681c:1cda Error creating a TLS-Connection: TLSv1.3 found, but no connection via TLSv1.2 possible. Please activate TLSv1.2 P https://webwarephpdevelopment.com/ 2606:4700:30::681c:1dda Error creating a TLS-Connection: TLSv1.3 found, but no connection via TLSv1.2 possible. Please activate TLSv1.2 P https://www.webwarephpdevelopment.com/ 104.28.28.218 Error creating a TLS-Connection: TLSv1.3 found, but no connection via TLSv1.2 possible. Please activate TLSv1.2 P https://www.webwarephpdevelopment.com/ 104.28.29.218 Error creating a TLS-Connection: TLSv1.3 found, but no connection via TLSv1.2 possible. Please activate TLSv1.2 P https://www.webwarephpdevelopment.com/ 2606:4700:30::681c:1cda Error creating a TLS-Connection: TLSv1.3 found, but no connection via TLSv1.2 possible. Please activate TLSv1.2 P https://www.webwarephpdevelopment.com/ 2606:4700:30::681c:1dda Error creating a TLS-Connection: TLSv1.3 found, but no connection via TLSv1.2 possible. Please activate TLSv1.2 2. DNS- and NameServer - Checks 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. 3. Content- and Performance-critical Checks http://webwarephpdevelopment.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 104.28.28.218 Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 500 - 599, Server Error. Creating a Letsencrypt certificate via http-01 challenge can't work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://webwarephpdevelopment.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 104.28.29.218 Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 500 - 599, Server Error. Creating a Letsencrypt certificate via http-01 challenge can't work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://webwarephpdevelopment.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2606:4700:30::681c:1cda Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 500 - 599, Server Error. Creating a Letsencrypt certificate via http-01 challenge can't work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://webwarephpdevelopment.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2606:4700:30::681c:1dda Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 500 - 599, Server Error. Creating a Letsencrypt certificate via http-01 challenge can't work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://www.webwarephpdevelopment.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 104.28.28.218 Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 500 - 599, Server Error. Creating a Letsencrypt certificate via http-01 challenge can't work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://www.webwarephpdevelopment.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 104.28.29.218 Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 500 - 599, Server Error. Creating a Letsencrypt certificate via http-01 challenge can't work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://www.webwarephpdevelopment.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2606:4700:30::681c:1cda Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 500 - 599, Server Error. Creating a Letsencrypt certificate via http-01 challenge can't work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. http://www.webwarephpdevelopment.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2606:4700:30::681c:1dda Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 500 - 599, Server Error. Creating a Letsencrypt certificate via http-01 challenge can't work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask. 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 A Duration: 33290 milliseconds, 33.290 seconds