justbooks.de

.de crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 578 ms crawled 2026-05-18

US · 3.164.206.60 · AS16509 Amazon.com, Inc.

Reputation 95/100 weak security headers

sector ecommerce type homepage

HTML metadata

Title: JustBooks.de: Neue und gebrauchte Bücher, seltene Bücher, Lehrbücher
Description: Preisvergleich für Bücher - Wir finden für Sie das güstigste Buch inklusive Versandkosten: Gebrauchte Bücher, antiquarische Bücher, neue Bücher. Suche nach Autor & Titel oder ISBN.
Language: DE
Canonical: https://justbooks.de/

Technology

CDN: Amazon CloudFront
CMS: Next.js

Registration

Updated

2025-03-31

Name servers

ns-1444.awsdns-52.org.
ns-1649.awsdns-14.co.uk.
ns-40.awsdns-05.com.
ns-720.awsdns-26.net.

DNS records live

NS

ns-1444.awsdns-52.org
ns-1649.awsdns-14.co.uk
ns-40.awsdns-05.com
ns-720.awsdns-26.net

MX

10 amazon-smtp.amazon.com

TXT

google-site-verification=EuwzTWiGpfI-PbpoLi1Zp9c6rK2xGV_K8cO5rnA6ytg

Email authentication strong

SPF

v=spf1 include:spf1.amazon.com include:spf2.amazon.com include:amazonses.com -all

strict (-all)

DMARC

v=DMARC1; p=reject; rua=mailto:report@dmarc.amazon.com; ruf=mailto:report@dmarc.amazon.com

policy: reject (enforced)

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)

Amazon RSA 2048 M03

from 2025-09-09 to 2026-10-09

Expires in 142 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://justbooks.de/

present

content-security-policy

findings

missing HSTS
CSP allows unsafe inline scripts/styles
CSP uses wildcard sources
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

content-security-policy: default-src 'self'; img-src 'self' *.abebooks.com; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://widget.pulse.aws.dev/pulse-js-widget.v0.1.0.js; style-src 'self' 'unsafe-inline'; font-src 'self'; connect-src 'self' https://unagi.amazon.com/1/events/com.amazon.csm.csa.prod https://api.pulse.aws