indexo.dev

schlenk.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-07 · ok HTTP/1.1 200 495 ms crawled 2026-05-07

DE · 185.237.67.170 · AS15817 Mittwald CM Service GmbH & Co. KG

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Welcome to SCHLENK
Description
With approx. 1000 employees worldwide, SCHLENK is a leading international manufacturer of metal powders, metal pigments and metal foils. SCHLENK specializes in the production of the thinnest metal foils. Copper, copper alloys, nickel, nickel silver, resistance alloys and fine silver.
Language
en-US
Generator
TYPO3 CMS
Canonical
https://www.schlenk.com/
Translations
  • de-de
  • en-us
  • zh-zh

Technology

Server
Apache

Social

Registration

Registrar
Deutsche Telekom AG
Created
1996-12-05
Expires
2026-12-04 198 days left
Updated
2025-11-06
Name servers
  • ns1.telekom-domains.de
  • ns2.telekom-domains.de

DNS records live

NS
  • ns1.telekom-domains.de
  • ns2.telekom-domains.de
MX
  • 15 schlenk-com.gate.seppmail.cloud
TXT
Show 4 TXT records
  • swisssign-check=35nf2e7KCknntDsvuMvPq6UoSag
  • apple-domain-verification=TYIN9BeQdxxwGQIC
  • MS=ms37672946
  • brevo-code:6a9189a99f8b43c0b533c356716bba53

Email authentication strong

SPF
v=spf1 a mx a:mail.schlenk.de a:srvex03.schlenk.de ip4:87.230.42.174 include:spf.de.umantis.com include:mail.kanbanize.com include:spf.protection.outlook.com include:_spf.de.seppmail.cloud -all
strict (-all)
DMARC
v=DMARC1;p=quarantine;sp=quarantine;pct=50;ruf=mailto:edv@schlenk.de;adkim=r;aspf=s;
policy: quarantine · pct=50 · sp=quarantine
DKIM
  • default: v=DKIM1; k=rsa; s=email; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0C72qW2QG64T97ezvY8Ut1bCQyVoW/4Kmzhwo7wgD29l65JDPmupxaZVRiI9Fh4atkEop…
selectors probed

Certificate (current)

R13
from 2026-03-11 to 2026-06-09
Expires in 20 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.schlenk.com/

present
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff

Links to (7)

Linked from (1)