北京理工大学
bit.edu.cn
Get a complete DNS, email, SSL, HTTP and network analysis in seconds.
bit.edu.cn
1 IPv4 address(es) detected.
0 IPv6 address(es) detected.
4 NS record(s); 2 or more required.
Authoritative zone record.
Both DS and DNSKEY are required.
Certificate authority restriction.
Agreement between public resolvers.
1 MX record(s).
SPF policy published.
DMARC policy published.
No tested DKIM selector responded.
Mail transport policy.
TLS reporting policy.
26 day(s) remaining.
Full points require at least 30 days remaining.
3 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/1.1 200 OK
Final URL uses HTTPS.
183.243.192.31
;; communications error to 69.64.44.20#53: timed out
;; communications error to 69.64.44.20#53: timed out
10 mailgw.bit.edu.cn.
"_globalsign-domain-verification=8D9hwWgSRt0iIoL9eoR5Ig2IgESpxHUajE4IbkSEFW" "apple-domain-verification=VYWHcc47WZ6oOTGW" "v=spf1 ip4:202.204.80.7 ip4:183.243.192.9 ip4:192.155.91.4 ip4:202.204.80.8 ip4:202.204.80.9 -all" "MS=876FD70633FA0249D617094D974A4A9D865524CF" "brevo-code:b1414e0a234265a2faa294058248ae06"
dns1.bit.edu.cn. dns.bit.edu.cn. dns3.bit.edu.cn. dns2.bit.edu.cn.
dns.bit.edu.cn. hostmaster.net.edu.cn. 2100001172 10800 900 604800 86400
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
v=spf1 ip4:202.204.80.7 ip4:183.243.192.9 ip4:192.155.91.4 ip4:202.204.80.8 ip4:202.204.80.9 -all
v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
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 - 210.8 ms - Port 465: Closed/unreachable - 466.6 ms - Port 587: Closed/unreachable - 4019.9 ms -