indexo.dev

responsivewebdesign.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 1214 ms crawled 2026-05-18

US · 162.243.84.221 · AS14061 DigitalOcean, LLC

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Welcome — Responsive Web Design
Language
en

Open Graph

url
https://responsivewebdesign.com/
title
Responsive Web Design — Welcome

Technology

Server
Apache

Registration

Registrar
pair Networks, Inc. d/b/a pair Domains
Created
2010-04-12
Expires
2028-04-12 693 days left
Updated
2026-02-12
Name servers
  • ns1.digitalocean.com
  • ns2.digitalocean.com
  • ns3.digitalocean.com

DNS records live

NS
  • ns1.digitalocean.com
  • ns2.digitalocean.com
  • ns3.digitalocean.com
MX
  • 10 in1-smtp.messagingengine.com
  • 20 in2-smtp.messagingengine.com

Email authentication weak

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

Certificate (current)

R13
from 2026-04-01 to 2026-06-30
Expires in 41 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://responsivewebdesign.com/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (2)

Linked from (3)