DNS records
A140.82.114.4
AAAAnone
Nameserversdns1.p08.nsone.net.
dns2.p08.nsone.net.
dns3.p08.nsone.net.
dns4.p08.nsone.net.
ns-1283.awsdns-32.org.
ns-1707.awsdns-21.co.uk.
ns-421.awsdns-52.com.
ns-520.awsdns-01.net.
MX0 github-com.mail.protection.outlook.com.
CAA\# 19 00 05 69 73 73 75 65 64 69 67 69 63 65 72 74 2e 63 6f 6d
\# 21 00 05 69 73 73 75 65 67 6c 6f 62 61 6c 73 69 67 6e 2e 63 6f 6d
\# 22 00 05 69 73 73 75 65 6c 65 74 73 65 6e 63 72 79 70 74 2e 6f 72 67
\# 18 00 05 69 73 73 75 65 73 65 63 74 69 67 6f 2e 63 6f 6d
\# 23 00 09 69 73 73 75 65 77 69 6c 64 64 69 67 69 63 65 72 74 2e 63 6f 6d
\# 26 00 09 69 73 73 75 65 77 69 6c 64 6c 65 74 73 65 6e 63 72 79 70 74 2e 6f 72 67
\# 22 00 09 69 73 73 75 65 77 69 6c 64 73 65 63 74 69 67 6f 2e 63 6f 6d
SOAns-1707.awsdns-21.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Mail authentication
SPFv=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.227.114 ip4:166.78.69.169 ip4:166.78.69.170 ip4:166.78.71.131 ~allPass
DMARCpolicy: p=quarantinePass
DKIMselectors: google, selector1, selector2, k1, k2, s1, s2Found
DNSSEC
ZoneOff
IP intelligence
Primary IP140.82.114.4
Reverse DNSlb-140-82-114-4-iad.github.com.
TLS certificate
CertificateSectigo · expires 2026-09-30 (60d)Valid
HTTP security headers
HTTPS redirectYes
HSTSYes
CSPYes
X-Content-TypeYes
X-Frame-OptionsYes
Referrer-PolicyYes
Permissions-PolicyNo
Servercloudflare
What to fix (2)
!No IPv6 (AAAA) record.
!DNSSEC not enabled — enable it to prevent DNS spoofing.
