checkbot.io

.io crawl

First seen 2026-04-17 · Last seen 2026-05-12 · ok HTTP/1.1 200 1783 ms crawled 2026-05-12

US · 104.198.14.52 · AS396982 Google LLC

Reputation 92/100 no dmarc policy

sector tech type blog

HTML metadata

Title
Checkbot: SEO, web speed, broken link & security tester for Chrome
Description
Checkbot finds SEO, speed & security problems before your website visitors do. Tests for broken links, duplicate content, invalid HTML/CSS/JavaScript, insecure pages & more. Test 100s of pages at once including local sites to keep on top of problems & stop critical issues going live.
Language
en
Generator
Hugo 0.80.0
Canonical
https://www.checkbot.io/
Translations
  • en-us

Open Graph

url
https://www.checkbot.io/
title
Checkbot: SEO, web speed, broken link & security tester for Chrome
locale
en_US
description
Checkbot finds SEO, speed & security problems before your website visitors do. Tests for broken links, duplicate content, invalid HTML/CSS/JavaScript, insecure pages & more. Test 100s of pages at once including local sites to keep on top of problems & stop critical issues going live.

Technology

CDN
Netlify
CMS
Hugo
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • cdn.paddle.com×1
  • www.googletagmanager.com×1

Social

Contact

Email

DNS records live

NS
  • darl.ns.cloudflare.com
  • dina.ns.cloudflare.com
MX
  • 56 route2.mx.cloudflare.net
  • 67 route3.mx.cloudflare.net
  • 91 route1.mx.cloudflare.net
TXT
  • firebase=checkbot-io
  • google-site-verification=bYQ16CAmvG33Yo81TnVO7iiVe3kv_2E2iiCgGPu6eso
  • firebase=checkbot-dev

Email authentication weak

SPF
v=spf1 include:_spf.mx.cloudflare.net include:servers.mcsv.net include:_spf.google.com include:_spf.firebasemail.com ~all
softfail (~all)
DMARC
not published
DKIM
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
selectors probed

Certificate (current)

E8
from 2026-05-10 to 2026-08-08
Expires in 80 days

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.checkbot.io/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
findings
  • missing Content Security Policy
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
DENY
x-content-type-options
nosniff
strict-transport-security
max-age=63072000; includeSubDomains; preload

Links to (20)

Linked from (2)