listdefender.com

.com ok HTTP/1.1 200 559 ms

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

US · 52.207.220.12 · AS14618 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
ListDefender - Clean Your Email List & Stop Bots
Description
Email deliverability for small businesses: verify, clean, and protect your list from bots, fake leads, and disengaged contacts. ListDefender improves your sender reputation, reduces bounces, and keeps your emails reaching real people.
Language
en
Canonical
https://listdefender.com/
Translations
  • en

Open Graph

url
https://listdefender.com
title
ListDefender - Clean Your Email List & Stop Bots
description
Email deliverability for small businesses: verify, clean, and protect your list from bots, fake leads, and disengaged contacts. ListDefender improves your sender reputation, reduces bounces, and keeps your emails reaching real people.

Technology

Server
nginx
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (6)

  • d2cpbcfv9cvexl.cloudfront.net×12
  • fonts.googleapis.com×4
  • fonts.gstatic.com×1
  • plusthis.infusionsoft.com×1
  • www.google.com×1
  • www.googletagmanager.com×1

Registration

Registrar
Squarespace Domains LLC
Created
2024-09-04
Expires
2026-09-04 76 days left
Updated
2025-08-20
Name servers
  • ns-cloud-a1.googledomains.com
  • ns-cloud-a2.googledomains.com
  • ns-cloud-a3.googledomains.com
  • ns-cloud-a4.googledomains.com

DNS records live

NS
  • ns-cloud-a1.googledomains.com
  • ns-cloud-a2.googledomains.com
  • ns-cloud-a3.googledomains.com
  • ns-cloud-a4.googledomains.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
Verified for
  • Google

Email authentication strong

SPF
v=spf1 a include:_spf.google.com mx include:infusionmail.com -all
strict (-all)
DMARC
v=DMARC1; p=reject;
policy: reject (enforced)
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwOBxpc+LZbpUw6p2v0NWh2b0nAYL2KxB3MtFpKEfxDpkSAFV/++yH8JDQd1Cs9rAsD1TgiWM7hsSjS…
selectors probed

Certificate (current)

E8
from 2026-05-05 to 2026-08-03
Expires in 44 days

HTTP security headers

Header hygiene 50/100 Checked live page: https://listdefender.com/

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

Links to (5)

Linked from (3)

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