indexo.dev

o-n.com

.com crawl

First seen 2026-05-09 · Last seen 2026-05-15 · ok HTTP/1.1 200 3243 ms crawled 2026-05-15

US · 23.251.147.71 · AS396982 Google LLC

Reputation 100/100

Classifying

HTML metadata

Title
Structural Engineering Firm | O'Donnell & Naccarato
Description
O’Donnell & Naccarato is a structural engineering firm providing in-depth analysis for each building’s architectural expression and purpose.
Language
en-US
Canonical
https://www.o-n.com/

Open Graph

url
https://www.o-n.com/
title
Home
locale
en_US
site name
O'Donnell & Naccarato
description
O’Donnell & Naccarato is a structural engineering firm providing in-depth analysis for each building’s architectural expression and purpose.

Technology

Server
nginx
CMS
WordPress
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • www.google.com×2
  • www.googletagmanager.com×1

Social

Contact

Phone

Registration

Registrar
Network Solutions, LLC
Created
1998-04-27
Expires
2031-04-26 1803 days left
Updated
2026-02-25
Name servers
  • ns1.propersky.com
  • ns2.propersky.com
  • ns3.propersky.com
  • ns4.propersky.com
  • ns5.propersky.com
  • ns6.propersky.com

DNS records live

NS
  • ns1.propersky.com
  • ns2.propersky.com
  • ns3.propersky.com
  • ns4.propersky.com
  • ns5.propersky.com
  • ns6.propersky.com
MX
  • 10 on-com0c.mail.protection.outlook.com

Email authentication strong

SPF
v=spf1 ip4:52.1.234.206 ip4:52.70.152.226 ip4:54.165.79.164 ip4:152.186.238.90 include:spf-us.emailsignatures365.com include:spf.protection.outlook.com include:servers.mcsv.net include:spf.constantcontact.com include:sendgrid.net -all
strict (-all)
DMARC
v=DMARC1; p=quarantine
policy: quarantine
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDVwf3Z146MDuc/FYgtCeIXcdF1fZEJ/hzozVjL9S8u76I1G9vYBuifhKAA5OWkOe2T9GTEteaEmHZ8HACwfO…
  • selector2: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDQgVEiOqFZuSsZxAtmJ+9OUon5abo8F9+s5O+F/bC9b9llJJu2nPucGvPFdvWL/f8etjoAG7Rona+mLCwgDB…
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7LyG41rHg5SmgD6NUmuX9ORsiMOjfW0tWhNIirERVEvf2RJS769YB7rZ5bqyYDj0qTOc30vHpHlbems9Zm…
  • s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs3cO9TaCEbOxlou3N8RVGOJLprQ95nSrfkLFMcoMNOLvcVNC/OUxoG+hj4YOpT4foxJ2RO9zpv1HFxWKJU…
selectors probed

Certificate (current)

R13
from 2026-04-13 to 2026-07-12
Expires in 54 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://www.o-n.com/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • missing Content Security Policy
  • missing Permissions Policy
Header values
referrer-policy
no-referrer-when-downgrade
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
strict-transport-security
max-age=15768000; includeSubDomains; preload;

Links to (4)

Linked from (1)