indexo.dev

sfermion.io

.io crawl

First seen 2026-04-12 · Last seen 2026-05-19 · ok HTTP/1.1 200 575 ms crawled 2026-05-19

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
Sfermion
Description
Sfermion is a multi-strategy investment firm focused on the immersive internet
Language
en
Canonical
https://www.sfermion.io

Open Graph

url
https://www.sfermion.io
title
Sfermion
site name
Sfermion
description
Sfermion is a multi-strategy investment firm focused on the immersive internet

Technology

CDN
Vercel
CMS
Next.js

Social

DNS records live

NS
  • ns-cloud-a1.googledomains.com
  • ns-cloud-a2.googledomains.com
  • ns-cloud-a3.googledomains.com
  • ns-cloud-a4.googledomains.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication strong

SPF
v=spf1 include:_spf.google.com ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; pct=100;
policy: quarantine
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApUREs3l0LzJgapjLVvVo20b1EeObPBBm0VDG5JdO+km6vodGWW5F1aMEnAQBMnV2c1km4FTnXBxEBp…
selectors probed

Certificate (current)

R12
from 2026-04-25 to 2026-07-24
Expires in 64 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.sfermion.io/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=63072000

Links to (3)

Linked from (1)