thumbnail-tester.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-16 · ok HTTP/1.1 200 1315 ms crawled 2026-05-16

US · 104.21.50.202 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: YouTube Thumbnail Tester - Free Online Tool for Testing Thumbnails
Description: A/B‑test your YouTube thumbnails in seconds with our free AI Thumbnail Tester—find the design that wins more clicks.
Language: en
Canonical: https://www.thumbnail-tester.com/

Open Graph

url: https://www.thumbnail-tester.com/
title: Thumbnail Tester | Free AI YouTube Thumbnail A/B Testing Tool|thumbnail-tester.com
description: A/B‑test your YouTube thumbnails in seconds with our free AI Thumbnail Tester—find the design that wins more clicks.

Technology

CDN: Cloudflare

Analytics

Cloudflare Insights
Google Tag Manager

Ads

Google AdSense

Fonts

Google Fonts

Third-party hosts loaded (5)

fonts.googleapis.com×1
fonts.gstatic.com×1
pagead2.googlesyndication.com×1
static.cloudflareinsights.com×1
www.googletagmanager.com×1

Registration

Registrar

Cloudflare, Inc.

Created

2025-04-06

Expires

2027-04-06 321 days left

Updated

2026-03-07

Name servers

guss.ns.cloudflare.com
meera.ns.cloudflare.com

DNS records live

NS

guss.ns.cloudflare.com
meera.ns.cloudflare.com

TXT

google-site-verification=1uUpimzWNLsvfCNfn7Om3GZBvR3vrettn8DcBJqIJ48

Email authentication no MX

SPF: not published
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

WE1

from 2026-03-26 to 2026-06-24

Expires in 35 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://www.thumbnail-tester.com/

present

x-content-type-options
referrer-policy

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff

Linked from (4)

See all sites whose homepage links to thumbnail-tester.com →