indexo.dev

drzimmerman.com

.com crawl

First seen 2026-04-20 · Last seen 2026-05-15 · ok HTTP/1.1 200 4744 ms crawled 2026-05-14

US · 34.160.81.203 · AS396982 Google LLC

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Dr. Zimmerman | Communication Expert & Speaker
Description
Dr. Zimmerman gives audiences the positive communication skills they need to succeed in a world that is more connected.
Language
en-US
Generator
Site Kit by Google 1.178.0
Canonical
https://www.drzimmerman.com/
Feeds

Open Graph

url
https://www.drzimmerman.com/
title
Dr. Zimmerman | Communication Expert & Speaker
locale
en_US
site name
Dr. Zimmerman | Communication Expert & Speaker
description
Dr. Zimmerman gives audiences the positive communication skills they need to succeed in a world that is more connected.

Technology

Server
nginx
CMS
WordPress
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×3

Social

Contact

Phone

Registration

Registrar
GKG.Net, Inc.
Created
2000-01-12
Expires
2028-01-12 602 days left
Updated
2025-11-25
Name servers
  • ns1.c26024.sgvps.net
  • ns2.c26024.sgvps.net

DNS records live

NS
  • ns1.siteground.net
  • ns2.siteground.net
MX
  • 10 mx10.antispam.mailspamprotection.com
  • 20 mx20.antispam.mailspamprotection.com
  • 30 mx30.antispam.mailspamprotection.com

Email authentication partial

SPF
v=spf1 +a +mx +ip4:34.174.87.97 +a:infusionmail.com ~all include:drzimmerman.com.spf.auto.dnssmarthost.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:508d4edc@mxtoolbox.dmarc-report.com; ruf=mailto:508d4edc@forensics.dmarc-report.com;
policy: none (monitoring only)
DKIM
  • default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4TpFeC6qB7bWxGByD/klhCCmbdeds/9X1jy98TqBKMA0GJTZYtnZwrL6kuSohHNyeKEdrco0yeOYSY…
selectors probed

Certificate (current)

R13
from 2026-05-03 to 2026-08-01
Expires in 74 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (9)

Linked from (3)