indexo.dev

r2llab.com

.com crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 586 ms crawled 2026-05-30

US · 104.21.66.225 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
R2L Lab - Reading to Learn Lab at the University of Waterloo

Technology

CDN
Cloudflare

Third-party hosts loaded (2)

  • cdn.jsdelivr.net×1
  • cloud.umami.is×1

Registration

Registrar
Porkbun LLC
Created
2023-05-17
Expires
2035-05-17 3269 days left
Updated
2025-08-18
Name servers
  • harmony.ns.cloudflare.com
  • zeus.ns.cloudflare.com

DNS records live

NS
  • harmony.ns.cloudflare.com
  • zeus.ns.cloudflare.com
MX
  • 10 wednesday.mxrouting.net
  • 18 wednesday-relay.mxrouting.net
TXT
  • _acme-challenge.r2llab.com TXT 5tAY3FokZVcQtZCjutjF0uGdbyvbP9_u50BaEUBzTPQ

Email authentication weak

SPF
v=spf1 include:mxlogin.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-17 to 2026-07-16
Expires in 43 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.r2llab.com/

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

Links to (6)

Linked from (1)