zweiggroup.com

.com crawl

First seen 2026-04-23 · Last seen 2026-05-14 · ok HTTP/1.1 200 3917 ms crawled 2026-05-17

CA · 23.227.38.65 · AS13335 Cloudflare, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Zweig Group | Elevating the AEC Industry
Description: Zweig Group is the leading research, publishing, and advisory resource for architecture, engineering, planning, & environmental consulting firms. The firm has on-staff experts and a comprehensive suite of products including industry reports, executive training, & more, covering all aspects of business management.
Language: en
Canonical: https://zweiggroup.com/

Open Graph

url: https://zweiggroup.com/
title: Zweig Group | Elevating the AEC Industry
site name: Zweig Group
description: Zweig Group is the leading research, publishing, and advisory resource for architecture, engineering, planning, & environmental consulting firms. The firm has on-staff experts and a comprehensive suite of products including industry reports, executive training, & more, covering all aspects of business management.

Technology

CDN: Cloudflare
CMS: Shopify

Analytics

Google Tag Manager

Third-party hosts loaded (6)

cdn.shopify.com×10
shop.app×2
monorail-edge.shopifysvc.com×1
px.ads.linkedin.com×1
static.klaviyo.com×1
www.googletagmanager.com×1

Social

Contact

Email

Phone

800.466.6275

Registration

Registrar

Tucows Domains Inc.

Created

2014-02-18

Expires

2027-02-18 274 days left

Updated

2026-02-17

Name servers

dom.ns.cloudflare.com
maeve.ns.cloudflare.com

DNS records live

NS

dom.ns.cloudflare.com
maeve.ns.cloudflare.com

MX

0 zweiggroup-com.mail.protection.outlook.com

TXT

Show 5 TXT records

klaviyo-site-verification=KeXG6N
MS=9E0C4670248B50D845DB4BD1B41C1CC5400EB93C
MS=ms13132513
MS=ms29915142
google-site-verification=_zQjWvm10jZ5q-zPngYTT7ftFPcwuF-4u4amzEdkYws

Email authentication partial

SPF

v=spf1 include:spf.protection.outlook.com include:klaviyo.com ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:5f03d00965920@ag.dmarcly.com; ruf=mailto:5f03d00965920@fo.dmarcly.com; sp=none;

policy: none (monitoring only) · sp=none

DKIM

google: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCSGQaDLv91kfLD/EbmKtYMCrIwsxe+KbS0Bw/LkhP7eMCthWHCe/P1a3dUcafgvC1b6E96mqAx0aF091GLXp…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz9g9jlkVw8PA8UealDpHDKt7xhSJ+W14iMho0HVPmpk3Mq6f4y0L6vFplquvB43fsHDBK2IhCP8WggqVdN…
s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC/LJVOalnkmDw4ZrYmitvRr1q3L2//iH+t6fWqHVHPUJzRcJvFMgI+QKGRmeBxPwpAs7Z5H/Qvuvm/j1kG8qGF65…

selectors probed

Certificate (current)

from 2026-04-06 to 2026-07-05

Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 85/100 Checked live page: https://zweiggroup.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