indexo.dev

unad.edu.co

.co crawl

First seen 2026-04-28 · Last seen 2026-05-20 · pending crawled 2026-05-19 3 attempts

CO · 157.137.230.77 · AS31898 Oracle Corporation

Reputation 75/100 wrong cert

ssl error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1000)

DNS records live

NS
  • ns1.unad.edu.co
  • ns2.unad.edu.co
  • ns3.unad.edu.co
  • ns4.unad.edu.co
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
  • psbbc425f31q7pcml8q9nfbfr2

Email authentication strong

SPF
v=spf1 include:_spf.google.com include:spf.protection.outlook.com include:_spf.elasticemail.com ~all
softfail (~all)
DMARC
v=DMARC1; p=reject; rua=mailto:seguimiento.correo@unad.edu.co
policy: reject (enforced)
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAotJqHthfng2jM3IWZjeG8kc1yqRd+Vy4CFUUtRcOr6+Z1EuGBRWhVtAPqvH+1t9kx49wZS5ykKbZ87…
selectors probed

Certificate (current) wrong cert

DigiCert Global G2 TLS RSA SHA256 2020 CA1
from 2026-04-15 to 2026-10-30
Expires in 162 days

Full certificate history on crt.sh ↗

Linked from (4)