indexo.dev

rsms.me

.me crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 1309 ms crawled 2026-05-18

US · 104.21.58.14 · AS13335 Cloudflare, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
rsms
Language
en
Feeds

Open Graph

url
https://rsms.me/
locale
en_GB
site name
rsms.me

Technology

CDN
Cloudflare

Social

DNS records live

NS
  • rachel.ns.cloudflare.com
  • zeus.ns.cloudflare.com
MX
  • 10 aspmx.l.google.com
  • 20 alt1.aspmx.l.google.com
  • 20 alt2.aspmx.l.google.com
  • 30 aspmx2.googlemail.com
  • 30 aspmx3.googlemail.com
TXT
  • google-site-verification=b2PDf63HYLsM-3q-mFQ4sGkYbSqBodAX_KMF76gW0hg

Email authentication partial

SPF
v=spf1 include:_spf.google.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:da689f9e11bb47169d68db2f854337b8@dmarc-reports.cloudflare.net
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-04 to 2026-07-03
Expires in 45 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://rsms.me/

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

Links to (1)

Linked from (9)