indexo.dev

jbslemmer.com

.com crawl

First seen 2026-04-15 · Last seen 2026-05-08 · ok HTTP/1.1 200 1490 ms crawled 2026-05-08

US · 192.161.49.90 · AS23273 HostPapa

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
John Slemmer's Web Site - An Information Technology Professional and Environmental Affairs Director
Description
John Slemmer, an information technology innovation professional with considerable international experience from 5 years in Europe, Environmental Health and Safety Management, web design, database development (SQL Server, Oracle, Dbase, Clipper), expert system design and development, project and department management, 26 patents, business development, and polish.
Language
en

Technology

Server
Apache
Analytics
  • Google Tag Manager
Ads
  • Google AdSense

Third-party hosts loaded (6)

  • p.moreover.com×3
  • ajax.googleapis.com×1
  • maxcdn.bootstrapcdn.com×1
  • pagead2.googlesyndication.com×1
  • www.4wx.com×1
  • www.googletagmanager.com×1

Registration

Registrar
GoDaddy.com, LLC
Created
2001-08-29
Expires
2026-08-29 102 days left
Updated
2022-09-03
Name servers
  • ns1.benivia.com
  • ns2.benivia.com

DNS records live

NS
  • ns1.benivia.com
  • ns2.benivia.com
MX
  • 0 jbslemmer.com

Email authentication weak

SPF
v=spf1 ip4:192.161.49.90 ip4:192.161.49.70 +a +mx +ip4:69.12.87.146 +include:relay.mailchannels.net +include:spf.antispamcloud.com +ip4:64.50.173.18 ~all
softfail (~all)
DMARC
not published
DKIM
  • default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyr9TmtGUn+9p6TXdmFk1wJp+mLogEp+FEUzyUyvpP8P/7HOjLZtnNRihj1UM9d+WuCH/GCUr1asXrz…
selectors probed

Certificate (current)

R13
from 2026-03-23 to 2026-06-21
Expires in 34 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (10)

Linked from (1)