indexo.dev

polymeroptics.de

.de crawl

First seen 2026-05-08 · Last seen 2026-05-08 · ok HTTP 200 4096 ms crawled 2026-05-15

DE · 192.102.162.236 · AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

Reputation 100/100

Registration

Updated
2016-04-28
Name servers
  • a.ns.joker.com.
  • b.ns.joker.com.
  • c.ns.joker.com.

DNS records live

NS
  • x.ns.joker.com
  • y.ns.joker.com
  • z.ns.joker.com
MX
  • 10 mail.joker.com

Email authentication strong

SPF
v=spf1 -all
strict (-all)
DMARC
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;
policy: reject (enforced) · sp=reject
DKIM
Show 12 DKIM selectors
  • default: v=DKIM1; p=;
  • google: v=DKIM1; p=;
  • selector1: v=DKIM1; p=;
  • selector2: v=DKIM1; p=;
  • k1: v=DKIM1; p=;
  • k2: v=DKIM1; p=;
  • mail: v=DKIM1; p=;
  • dkim: v=DKIM1; p=;
  • s1: v=DKIM1; p=;
  • s2: v=DKIM1; p=;
  • mxvault: v=DKIM1; p=;
  • smtpapi: v=DKIM1; p=;
selectors probed

Certificate (current)

GEANT TLS RSA 1
from 2025-11-14 to 2026-11-14
Expires in 179 days

Full certificate history on crt.sh ↗

Linked from (1)