1. General Results, most used to calculate the result A name "hostingportatil.tk" is domain, public suffix is "tk", top-level-domain-type is "country-code", Country is Tokelau, tld-manager is "Telecommunication Tokelau Corporation (Teletok)" A good: No asked Authoritative Name Server had a timeout HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List. Y www.hostingportatil.tk 172.18.0.1 Warning: Private ip address found. No connection possible. There are two types of ip addresses: Worldwide unique, global addresses and private addresses. If you want that other users connect your domain, your domain must have minimal one A- (ipv4) or AAAA- (ipv6) entry with a global ip address. Check https://en.wikipedia.org/wiki/Private_network to understand the details: 172.16.0.0 to 172.31.255.255: Class B - 16 private net, every with 65.536 addresses 2. 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: ns01.freenom.com,ns02.freenom.com,ns03.freenom.com,ns04.freenom.com A Good: Nameserver supports TCP connections: 4 good Nameserver A Good: Nameserver supports Echo Capitalization: 4 good Nameserver X Fatal error: Nameserver doesn't support EDNS with max. 512 Byte Udp payload or sends more then 512 Bytes: ns01.freenom.com X Fatal error: Nameserver doesn't support EDNS with max. 512 Byte Udp payload or sends more then 512 Bytes: ns02.freenom.com X Fatal error: Nameserver doesn't support EDNS with max. 512 Byte Udp payload or sends more then 512 Bytes: ns03.freenom.com X Fatal error: Nameserver doesn't support EDNS with max. 512 Byte Udp payload or sends more then 512 Bytes: ns04.freenom.com Nameserver doesn't pass all EDNS-Checks: a.ns.tk: OP100: ok. FLAGS: ok. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: ok (ams). COOKIE: ok. CLIENTSUBNET: ok. Nameserver doesn't pass all EDNS-Checks: b.ns.tk: OP100: ok. FLAGS: ok. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: ok (ams). COOKIE: ok. CLIENTSUBNET: ok. Nameserver doesn't pass all EDNS-Checks: c.ns.tk: OP100: ok. FLAGS: ok. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: ok (led). COOKIE: ok. CLIENTSUBNET: ok. Nameserver doesn't pass all EDNS-Checks: d.ns.tk: OP100: ok. FLAGS: ok. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: ok (led). COOKIE: ok. CLIENTSUBNET: ok. Nameserver doesn't pass all EDNS-Checks: ns01.freenom.com: 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. Nameserver doesn't pass all EDNS-Checks: ns01.freenom.com / 54.171.131.39: 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. Nameserver doesn't pass all EDNS-Checks: ns02.freenom.com / 52.19.156.76: 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. Nameserver doesn't pass all EDNS-Checks: ns03.freenom.com / 104.155.27.112: 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. Nameserver doesn't pass all EDNS-Checks: ns04.freenom.com / 104.155.29.241: 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. 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 A Info: No img element found, no alt attribute checked 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: 120814 milliseconds, 120.814 seconds