indexo.dev

leyden-jar.com

.com crawl

First seen 2026-06-01 · Last seen 2026-06-01 · ok HTTP/1.1 200 672 ms crawled 2026-06-01

NL · 185.92.223.97 · AS20473 The Constant Company, LLC

Reputation 100/100

Classifying

HTML metadata

Title
Pure Silicon Anode with high energy density - LeydenJar
Description
LeydenJar created a pure silicon anode with extreme high energy density, allowing companies to benefit from powerful and small batteries.
Language
en-US
Generator
WordPress 6.9.4
Canonical
https://leyden-jar.com/

Open Graph

url
https://leyden-jar.com/
title
Pure Silicon Anode with high energy density - LeydenJar
locale
en_US
site name
LeydenJar
description
LeydenJar created a pure silicon anode with extreme high energy density, allowing companies to benefit from powerful and small batteries.

Technology

Server
nginx
CMS
WordPress 6.9.4
jQuery
3.7.1
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Social

Registration

Registrar
Key-Systems GmbH
Created
2016-04-07
Expires
2027-04-07 309 days left
Updated
2026-04-08
Name servers
  • ns0.transip.net
  • ns1.transip.nl
  • ns2.transip.eu

DNS records live

NS
  • ns0.transip.net
  • ns1.transip.nl
  • ns2.transip.eu
MX
  • 0 leydenjar-com01e.mail.protection.outlook.com
TXT
  • DomainVerification=78DUUD0RFNMYKPLIJXQJ9F3WYTWU8AJJUAN26CXDSIY0UZ3ASVOIALU7609ZTVOH
  • _go7k4dfi6plqyy6qr9jbzzn9m9xachs
Verified for
  • Anthropic
  • Apple
  • Atlassian
  • Brevo

Email authentication strong

SPF
v=spf1 include:_spf.mailersend.net include:spf.protection.outlook.com include:_spf.paytsoftware.com include:hosting.safespace.nl include:sendgrid.net include:sent-via.netsuite.com include:7611957.spf01.hubspotemail.net ip4:132.229.1.20 ip4:165.225.240.114 ip4:77.60.209.200 ip4:45.10.231.186 ip4:92.67.210.104 mx ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:DMARC@leyden-jar.com
policy: quarantine
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPYxrVi8WG3q8vw0asTIJIdLEzwf6uQFyjnxUsVeRpOEUMHOKP529Ff4TQW/F6VcQfxLnuaWFlK2Dvw1QYSu…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0mRHdcHJWX5EHmzkcVHvLOExPhKvhhKOwQ7NC1wf/AqWFFQ2twOqmAJmo50CuIeO52o1yhpz+eu+2B…
  • mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…
selectors probed

Certificate (current)

E7
from 2026-04-09 to 2026-07-08
Expires in 36 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://leyden-jar.com/

present
  • x-frame-options
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff

Links to (4)

Linked from (1)