21words.app

.app crawl

First seen 2026-04-20 · Last seen 2026-04-20 · ok HTTP/1.1 200 708 ms crawled 2026-05-13

US · 104.21.46.143 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
21 Words - Daily Word Puzzle Challenge
Description
Put your word skills to the test with 21 Words, the ultimate daily word puzzle game! Unscramble words of increasing difficulty and keep your brain sharp. New puzzles every day.
Language
en

Open Graph

url
https://21words.app
title
21 Words - Daily Word Puzzle Challenge
description
Are you ready to put your word skills to the test? Welcome to 21 Words, the ultimate daily word puzzle game that will keep your brain sharp and your vocabulary growing!

Technology

CDN
Cloudflare
CMS
Gatsby
Analytics
  • Google Tag Manager
Ads
  • Google AdSense

Third-party hosts loaded (2)

  • pagead2.googlesyndication.com×1
  • www.googletagmanager.com×1

DNS records live

NS
  • cesar.ns.cloudflare.com
  • kallie.ns.cloudflare.com

Email authentication no MX

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

Certificate (current)

WE1
from 2026-03-23 to 2026-06-22
Expires in 34 days

HTTP security headers

Header hygiene 45/100 Checked live page: https://21words.app/

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 (1)