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tumcso.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-12 · pending crawled 2026-05-15 4 attempts

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 67/100 wrong cert no dmarc policy

ssl error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'tumcso.com'. (_ssl.c:1000)

Registration

Registrar
CSL Computer Service Langenbach GmbH d/b/a joker.com
Created
2021-07-06
Expires
2027-07-06 412 days left
Updated
2026-04-21
Name servers
  • x.ns.joker.com
  • y.ns.joker.com
  • z.ns.joker.com

DNS records live

NS
  • x.ns.joker.com
  • y.ns.joker.com
  • z.ns.joker.com
MX
  • 20 smtp.google.com
TXT
  • google-site-verification=g5YP_DGB5FMbu4btsVE6HgFyE3_hat3hNLrNO3E8Irs

Email authentication weak

SPF
v=spf1 include:spf.mailjet.com include:spf.efwd.registrar-servers.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current) wrong cert

R12
from 2026-03-26 to 2026-06-24
Expires in 36 days

Full certificate history on crt.sh ↗

Linked from (1)