indexo.dev

listdefender.app

.app ok HTTP/1.1 200 1037 ms

First seen 2026-06-11 · Last seen 2026-06-11 · crawled 2026-06-11

US · 23.23.121.176 · AS14618 Amazon.com, Inc.

Reputation 92/100 spf without fallback

Classifying

HTML metadata

Title
ListDefender
Language
en

Technology

Server
nginx
Analytics
  • Google Tag Manager

Third-party hosts loaded (5)

  • d2cpbcfv9cvexl.cloudfront.net×9
  • fonts.bunny.net×2
  • widget.wickedreports.com×1
  • www.facebook.com×1
  • www.googletagmanager.com×1

DNS records live

NS
  • ns-1315.awsdns-36.org
  • ns-147.awsdns-18.com
  • ns-1545.awsdns-01.co.uk
  • ns-638.awsdns-15.net
MX
  • 10 smtp-2.listdefender.app
  • 10 smtp.listdefender.app

Email authentication strong

SPF
v=spf1 redirect=smtp.listdefender.app
missing all
DMARC
v=DMARC1; p=reject;
policy: reject (enforced)
DKIM
no key found at common selectors

Certificate (current)

Amazon RSA 2048 M04
from 2025-08-05 to 2026-09-04
Expires in 76 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://listdefender.app/login

present
  • content-security-policy
  • x-frame-options
  • x-content-type-options
findings
  • missing HSTS
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self' https://listdefender.com

Linked from (1)

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  -H "X-API-Key: idx_..."

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