indexo.dev

21energy.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-08 · ok HTTP/1.1 200 1975 ms crawled 2026-05-08

CA · 23.227.38.65 · AS13335 Cloudflare, Inc.

Reputation 94/100 dmarc monitor-only

ecommerce

HTML metadata

Title
21energy - Bitcoin Heaters Made in Austria & Bitcoin Miners
Description
21energy produces Bitcoin heaters made in Austria for private and industrial use. Click here and discover the Austrian start-up brand.
Language
en
Canonical
https://21energy.com/
Translations
  • de
  • en
  • fi
  • fr
  • no
  • sv

Open Graph

url
https://21energy.com/
title
21energy - Bitcoin Heaters Made in Austria & Bitcoin Miners
locale
en_US
site name
21energy
description
21energy produces Bitcoin heaters made in Austria for private and industrial use. Click here and discover the Austrian start-up brand.

Technology

CDN
Cloudflare
CMS
Shopify
Analytics
  • Google Tag Manager

Third-party hosts loaded (5)

  • cdn.shopify.com×44
  • d3e54v103j8qbb.cloudfront.net×1
  • fonts.shopifycdn.com×1
  • monorail-edge.shopifysvc.com×1
  • www.googletagmanager.com×1

Social

Contact

Phone

Registration

Registrar
RegistryGate GmbH
Created
2021-06-15
Expires
2027-06-15 392 days left
Updated
2025-11-23
Name servers
  • clayton.ns.cloudflare.com
  • rayne.ns.cloudflare.com

DNS records live

NS
  • clayton.ns.cloudflare.com
  • rayne.ns.cloudflare.com
MX
  • 0 21energy-com.mail.protection.outlook.com
TXT
Show 6 TXT records
  • google-site-verification=Oag1qfWBvfQ9DVotvnELSb0tOgMDNQhwCka7iuaeXAY
  • google-site-verification=rXVINPSR-VM3Jm8GaG6yI0679PVKSGLHLhU7gLzjwAg
  • MS=ms80845343
  • ahrefs-site-verification_d3ab3b81b52e79dea972747c8da97d728aaa39dd5e3ac23291d96ac1a2808a00
  • amazonses:1q7PupHEucEerLiCFUfGdg8tg62rMeGBy9GzaMFSKb8=
  • google-site-verification=4AigaAj8a_Hqsf49nL30fBYCWsczo7wQT6Pa2EOF0U0

Email authentication partial

SPF
v=spf1 mx a include:mail.zendesk.com include:mailgun.org include:spf.protection.outlook.com include:spf-de.emailsignatures365.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

E8
from 2026-04-19 to 2026-07-18
Expires in 60 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 85/100 Checked live page: https://21energy.com/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
findings
  • short HSTS max-age
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
DENY
x-content-type-options
nosniff
content-security-policy
block-all-mixed-content; frame-ancestors 'none'; upgrade-insecure-requests;
strict-transport-security
max-age=7889238

Links to (8)

Linked from (1)