indexo.dev

rr.co

.co crawl

First seen 2026-04-14 · Last seen 2026-05-06 · ok HTTP/1.1 200 1943 ms crawled 2026-05-08

US · 99.83.183.127 · AS16509 Amazon.com, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Randy Reddig
Description
Seven years later… February 27, 2023 Would you believe it took a while to reinstall Ruby? One Y...
Canonical
https://rr.co/
Feeds

Technology

Server
Heroku
Social widgets
  • Vimeo Embed
  • YouTube Embed
Third-party hosts loaded (8)
  • www.youtube.com×3
  • farm3.staticflickr.com×2
  • cdn.vox-cdn.com×1
  • farm2.staticflickr.com×1
  • i.kinja-img.com×1
  • mapsengine.google.com×1
  • pbs.twimg.com×1
  • player.vimeo.com×1

Social

Contact

Phone

DNS records live

NS
  • ns1.dnsimple.com
  • ns2.dnsimple.com
  • ns3.dnsimple.com
  • ns4.dnsimple.com
MX
  • 1 aspmx.l.google.com
  • 10 aspmx2.googlemail.com
  • 10 aspmx3.googlemail.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
  • ALIAS for rr.co.herokudns.com
  • google-site-verification=wJEFUvUq5hVSMlgIEKCDy2XbM52dI0N_CKj9Ln20ZXQ

Email authentication weak

SPF
v=spf1 a include:_spf.google.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-03-23 to 2026-06-21
Expires in 32 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://rr.co/

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

Links to (24)