CommonMark
commonmark.org
Get a complete DNS, email, SSL, HTTP and network analysis in seconds.
commonmark.org
4 IPv4 address(es) detected.
0 IPv6 address(es) detected.
2 NS record(s); 2 or more required.
Authoritative zone record.
Both DS and DNSKEY are required.
Certificate authority restriction.
Agreement between public resolvers.
5 MX record(s).
SPF policy published.
DMARC policy not found.
A DKIM selector was verified.
Mail transport policy.
TLS reporting policy.
48 day(s) remaining.
Full points require at least 30 days remaining.
0 of 9 evaluated headers detected.
PTR: cdn-185-199-111-153.github.com
Two or more IPv4 addresses receive full points.
AAAA availability.
At least one address family must resolve.
HTTP/2 200
Final URL uses HTTPS.
185.199.111.153 185.199.109.153 185.199.110.153 185.199.108.153
Not configured
Not configured
20 eforward5.registrar-servers.com. 10 eforward2.registrar-servers.com. 15 eforward4.registrar-servers.com. 10 eforward3.registrar-servers.com. 10 eforward1.registrar-servers.com.
"v=spf1 include:spf.mandrillapp.com ?all" "v=spf1 include:spf.efwd.registrar-servers.com ~all"
dns1.registrar-servers.com. dns2.registrar-servers.com.
dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1742058238 43200 3600 604800 3601
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
v=spf1 include:spf.mandrillapp.com ?all
Not configured
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;
5 public resolvers queried.
8.8.8.81.1.1.19.9.9.9208.67.222.22294.140.14.14Port 25: Closed/unreachable - 8.6 ms - Port 465: Closed/unreachable - 4020.7 ms - Port 587: Closed/unreachable - 4006.6 ms -