indexo.dev

wcbn.org

.org crawl

First seen 2026-04-15 · Last seen 2026-05-07 · error HTTP 403 crawled 2026-05-10 5 attempts

US · 172.66.0.37 · AS13335 Cloudflare, Inc.

Reputation 42/100 listed in spam blocklist crawl error no dmarc policy

cloudflare bot challenge

Registration

Registrar
Tucows Domains Inc.
Created
1997-07-24
Expires
2029-07-23 1160 days left
Updated
2026-04-27
Name servers
  • cffw1.dns.umich.com
  • cffw2.dns.umich.net

DNS records live

NS
  • dns1.itd.umich.edu
  • dns2.itd.umich.edu
  • dns3.umich.org
  • ext-ns1.columbia.edu
MX
  • 0 mx1.a.mail.umich.edu

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-13 to 2026-07-12
Expires in 54 days

Full certificate history on crt.sh ↗

Linked from (1)