indexo.dev

sterlinghvac.com

.com crawl

First seen 2026-05-08 · Last seen 2026-05-15 · ok HTTP/1.1 200 9360 ms crawled 2026-05-15

US · 52.151.208.173 · AS8075 Microsoft Corporation

Reputation 62/100 wrong cert weak security headers no dmarc policy

Classifying

HTML metadata

Title
Home Page - Sterling HVAC
Description
Sterling HVAC, the most recognized name in the game, has been producing industry leading high efficiency heating products for over 50 years. From traditional Unit Heaters to Rooftop and Indoor Make-Up Air units, Sterling HVAC has the solution to fit every residential, commercial or industrial application. Fired heaters indoor unit products
Language
en
Canonical
https://www.sterlingHvac.com

Open Graph

url
http://www.sterlinghvac.com/
title
Home Page - Sterling HVAC
description
Sterling HVAC, the most recognized name in the game, has been producing industry leading high efficiency heating products for over 50 years. From traditional Unit Heaters to Rooftop and Indoor Make-Up Air units, Sterling HVAC has the solution to fit every residential, commercial or industrial application. Fired heaters indoor unit products

Technology

Server
Microsoft-IIS
Analytics
  • Google Tag Manager
Fonts
  • Adobe Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • fonts.googleapis.com×2
  • use.typekit.net×2
  • www.googletagmanager.com×2
  • kit.fontawesome.com×1
  • www.google.com×1

Social

Contact

Email
Phone

Registration

Registrar
Network Solutions, LLC
Created
1997-04-09
Expires
2029-04-10 1056 days left
Updated
2026-02-09
Name servers
  • ns85.worldnic.com
  • ns86.worldnic.com

DNS records live

NS
  • ns85.worldnic.com
  • ns86.worldnic.com
MX
  • 10 sterlinghvac-com.mail.protection.outlook.com
TXT
  • _50v0m6zrx08plpaz5t6sr910js4beki

Email authentication weak

SPF
v=spf1 redirect=mestek.net
no all qualifier
DMARC
not published
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDFmF2FwkgWrpHBrgb1gnqrD5f77ZQY0/rkm/kn+wpQmHWo13aejJNoeJ2BBZgAOzxht528byidjG5Pn88NBd…
selectors probed

Certificate (current) wrong cert

DigiCert Global G2 TLS RSA SHA256 2020 CA1
from 2026-03-30 to 2026-09-22
Expires in 125 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (5)

Linked from (1)