Math is Fun
mathsisfun.com
Math explained in easy language, plus puzzles, games, worksheets and an illustrated dictionary. For K-12 kids, teachers and parents.
Get a complete DNS, email, SSL, HTTP and network analysis in seconds.
mathsisfun.com
Math explained in easy language, plus puzzles, games, worksheets and an illustrated dictionary. For K-12 kids, teachers and parents.
2 IPv4 address(es) detected.
2 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.
0 MX record(s).
SPF policy not found.
DMARC policy not found.
No tested DKIM selector responded.
Mail transport policy.
TLS reporting policy.
69 day(s) remaining.
Full points require at least 30 days remaining.
0 of 9 evaluated headers detected.
PTR not detected.
Two or more IPv4 addresses receive full points.
AAAA availability.
At least one address family must resolve.
HTTP/2 200
Final URL uses HTTPS.
104.20.45.184 172.66.146.177
2606:4700:10::ac42:92b1 2606:4700:10::6814:2db8
Not configured
Not configured
Not configured
fay.ns.cloudflare.com. fred.ns.cloudflare.com.
fay.ns.cloudflare.com. dns.cloudflare.com. 2411374714 10000 2400 604800 1800
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
5 public resolvers queried.
8.8.8.81.1.1.19.9.9.9208.67.222.22294.140.14.14Port 25: Closed/unreachable - 0.7 ms - Port 465: Closed/unreachable - 4020.2 ms - Port 587: Closed/unreachable - 4023.6 ms -