calctree.com

.com crawl

First seen 2026-04-15 · Last seen 2026-05-11 · ok HTTP/1.1 200 909 ms crawled 2026-05-11

US · 198.202.211.1 · AS209242 Cloudflare London, LLC

Reputation 100/100

Classifying

HTML metadata

Title: CalcTree - Engineering calculation management software
Description: Build and share engineering creations faster and smarter with unmatched accuracy using CalcTree’s engineering calculation software.
Language: en
Canonical: https://www.calctree.com

Open Graph

title: CalcTree - Engineering calculation management software
description: Build and share engineering creations faster and smarter with unmatched accuracy using CalcTree’s engineering calculation software.

Technology

CDN: Cloudflare
CMS: Joomla

Social widgets

YouTube Embed

Third-party hosts loaded (3)

cdn.prod.website-files.com×35
d3e54v103j8qbb.cloudfront.net×1
www.youtube.com×1

Social

Registration

Registrar

GoDaddy.com, LLC

Created

2016-09-24

Expires

2026-09-24 127 days left

Updated

2025-09-25

Name servers

ns-1185.awsdns-20.org
ns-1744.awsdns-26.co.uk
ns-478.awsdns-59.com
ns-636.awsdns-15.net

DNS records live

NS

ns-1185.awsdns-20.org
ns-1744.awsdns-26.co.uk
ns-478.awsdns-59.com
ns-636.awsdns-15.net

MX

1 aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

TXT

google-site-verification=agvNLDeAbER9_l-qfHyweTf2PX8WFFFVX4UHZc16fKo

Email authentication strong

SPF

v=spf1 include:dc-aa8e722993._spfm.calctree.com ~all

softfail (~all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:oxhdntsa@ag.au.dmarcian.com, mailto:mahan+DMARC@calctree.com; ruf=mailto:mahan+DMARC@calctree.com, mailto:oxhdntsa@ag.au.dmarcian.com;

policy: quarantine

DKIM

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuS2Ot14OlB5d0qcUv8ERclJE8ElPVt23ue3I9hz9yVkPHMmGtHHzknVwWTVBFAvmrZ8+i7Q+YDcXXf…

selectors probed

Certificate (current)

WE1

from 2026-05-06 to 2026-08-04

Expires in 77 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.calctree.com/

present

strict-transport-security

findings

missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=31536000

Links to (4)

Linked from (1)

suffolktech.com×2