coupons.de
HTML metadata
Technology
Third-party hosts loaded (1)
- www.coupons.ch×1
Social
Registration
- Updated
- 2026-05-15
- Name servers
-
- ns01.agenturserver.co.
- ns01.agenturserver.de.
- ns01.agenturserver.it.
DNS records live
- NS
-
- ns01.agenturserver.co
- ns01.agenturserver.de
- ns01.agenturserver.it
- MX
-
- 10 mx1.agenturserver.de
- 10 mx2.agenturserver.de
- 20 mx3.agenturserver.de
- 50 mx4.agenturserver.de
- Verified for
-
Email authentication strong
- SPF
-
v=spf1 include:agenturserver.de ~allsoftfail (~all) - DMARC
-
v=DMARC1; p=reject; sp=reject; ruf=mailto:dmarc@coupons4u.de; rua=mailto:dmarc@coupons4u.de; fo=1policy: reject (enforced) · sp=reject - DKIM
- no key found at common selectors
Certificate (current)
R12
Expires in 71 days
HTTP security headers
- present
-
- strict-transport-security
- x-frame-options
- x-content-type-options
- findings
-
- missing Content Security Policy
- missing Referrer Policy
- missing Permissions Policy
Header values
- x-frame-options
SAMEORIGIN- x-content-type-options
nosniff- strict-transport-security
max-age=31536000; includeSubDomains
Links to (11)
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- coupons.ch×1
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- instagram.com×1
- linkedin.com×1
- mozilla.org×1
- stern.de×1
- t-online.de×1
- tiktok.com×1