indexo.dev

howbigismybrowser.com

.com crawl

First seen 2026-05-31 · Last seen 2026-05-31 · ok HTTP/1.1 200 370 ms crawled 2026-06-01

US · 13.227.173.47 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
How Big Is My Browser?
Description
A simple yet astute way for developers and designers to discover the size of their browser window
Language
en

Technology

CDN
Amazon CloudFront
Server
AmazonS3
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Registration

Registrar
1API GmbH
Created
2009-08-20
Expires
2026-08-20 76 days left
Updated
2026-05-12
Name servers
  • ns1.dnsimple-edge.com
  • ns2.dnsimple-edge.net
  • ns3.dnsimple-edge.io
  • ns4.dnsimple-edge.org

DNS records live

NS
  • ns1.dnsimple-edge.com
  • ns2.dnsimple-edge.net
  • ns3.dnsimple-edge.io
  • ns4.dnsimple-edge.org
Verified for
  • Google

Email authentication no MX

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

Certificate (current)

Amazon ECDSA 256 M01
from 2025-12-14 to 2027-01-13
Expires in 222 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 85/100 Checked live page: https://howbigismybrowser.com/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
findings
  • CSP allows unsafe inline scripts/styles
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
DENY
x-content-type-options
nosniff
content-security-policy
default-src 'none'; script-src 'self'; style-src 'self' 'unsafe-inline'; object-src 'none'; font-src 'self'; child-src 'none'; frame-src 'self' blob:; manifest-src 'none'; media-src 'self'; form-action 'none'; img-src 'self' data:; connect-src 'self'; base-uri howbigismybrowser.com; frame-ancestors 'none'; upgrade-insecure-requests
strict-transport-security
max-age=31536000; includeSubDomains

Links to (1)

Linked from (1)