ctstack.uk

ctstack.uk serves a website of its own over HTTPS. It answers on IPv4 only, with a valid TLS certificate and MX records for mail.

1,099,433 other domains share an IP address with it.

The most recent crawl returned the page title “CT Stack - Software & Technologies for the Construction Industry” and 35,072 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.uk	Statistics for all domains we know under this TLD.
Has website	yes	A website is hosted under the domain, which does not redirect to an external domain.
Has MX-record	yes	The domain has an MX record.
External redirect	no	The domain redirects to another domain.
Redirect to https	yes	The domain redirects to https.
Redirect to www.	no	The domain redirects to www.domain.
Only with www.	no	The domain can only be reached with the subdomain "www".
Only DNS, no website	no	There are no A or AAAA records in DNS.
IP-Address	only IPv4	Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate	valid	Shows whether the domain has a valid SSL certificate.
Redirects	0	Number of domains that redirect to this domain.
Reverse IP	1,099,433	Number of domains with the same IP(s).

This data through the API

The data on this page is also available as JSON: /lookup for the key facts, /reverseip, /redirect and /similar for the lists, and /dnshistory with Basic and Premium. A free account comes with an API key and 100 calls a day.

curl -X POST https://api.webxtrend.com/v1.0/lookup \
  -H 'Content-Type: application/json' \
  -d '{"token": "YOUR_TOKEN", "query": "ctstack.uk"}'

Create a free account Read the API docs

Similar websites

Website	Similarity
contechdigest.com Construction Technology News - Construction Technology Digest Find the right technology for the way you build. Search BIM, estimating, fabrication, project management … Preconstruction & Estimating BIM, VDC & Design Con...	90 %
conslog.com ConsLog – Construction management software for owners	86 %
chalkstring.com Cloud Construction Software - Takeoff, Estimating & Cost Management Chalkstring offers Takeoff, Estimating and Cost Management software for specialist contractors in construction. Centralise project data, standardise processe...	86 %
emishatech.com Emisha - Tailored Construction Softwares Emisha is a leading technology company. Construction ERP Softwares Tailored for you. Learn more on how we can accelerate your digital transformation.	86 %
workbenchcentral.com Workbench Project Management Software — Home Job costing software for civil, engineering and construction projects. Improve your project management and eliminate spreadsheets.	85 %
admicom.com Admicom \| Build better. Together. Discover how Admicom’s software solutions serve companies in the construction, building services engineering and real estate industries.	85 %
tefcor.com Tefcor Solutions - Construction Software & Technology Services Providing robust, custom and approachable software to construction companies of any size. Specializing in estimating, job management, and business software s...	85 %
fiyrr.com Fiyrr Solutions \| Construction ERP & Project Management Software Fiyrr delivers custom construction software, ERP, Primavera CPM scheduling tools, daily progress reporting, QA/QC management, and workforce dashboards for co...	85 %
buildprosoft.com BuildProSoft — Construction Project Management Software BuildProSoft empowers collaborative management of construction projects with document management, GIS support, progress monitoring, site diary, inspections,...	85 %
billeasy.ca BillEasy Construction Management Software The all-in-one construction management software built to help you finish quality projects safely, on time, and within budget.	85 %
shaarviktechnologies.com Shaarvik Technologies LLP — Smart SaaS for Modern Businesses Shaarvik Technologies develops powerful SaaS products to simplify business operations. Explore Buildarya — project, cost, and labour management platform.	85 %
enhanced-business.com Enhanced Business Systems - Construction Software Solutions - Empowering Construction with Tailored Software Solutions Transform your construction business with our tailored software solutions for project management, finance, and payroll. Request a free demo!	84 %
firefly-online.net Firefly Online Ltd Offering intelligent software to transform the way data could be captured, recorded and shared to minimise risk, target resources and predict trends.	84 %
icsoft.org ICSoft Engineering Library \| Software Engineering & Architecture Independent, practical guides to software engineering, software architecture, development methodologies and research, plus browser-only decision tools.	84 %
quantumss.com Quantum Software Solutions - Construction Software - Quantum Project Manager Construction Software by Quantum Software Solutions Inc. - Affordable construction project management software that includes free technical support.	84 %
setconsultants.com SET Consultants Software Development, Project Management, and more	84 %
sortdesk.com Sortdesk - Custom Software Solutions for AEC We build custom automations, integrations, and tools that solve real problems in the Architecture, Engineering, and Construction industry.	84 %
constructiveit.co.za Constructive IT Solutions \| Your Construction Cost Management Specialists	84 %
costcon.co.nz CostCon \| All in One Construction Software your Entire Team Will Love Powerful project management software for construction teams across NZ. Plan, track & deliver projects on time and on budget.	84 %
marizsoft.com MarizSoft - Home	84 %

Websites whose start page offers something similar, found by comparing the text of their start pages, across languages. Near-identical copies, parking pages and error pages are left out. The full list of up to 100 comes through the API: similar websites.

Last SSL certificate

Issuer	Let's Encrypt
Valid from	9/4/2026
Valid to	12/3/2026
Time until expiry	46 days

Last successful crawl

Title	CT Stack - Software & Technologies for the Construction Industry
Description	A comprehensive directory of construction technology products for principle contractors and architects.
Content-Length	35,072 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

DNS history

IPv4 address	Last updated
76.76.21.21	6/1/2025

Mail server	Priority	Last updated
smtp.google.com	1	6/1/2025

Name server	Last updated
ns09.domaincontrol.com	6/1/2025
ns10.domaincontrol.com	6/1/2025

The five most recent states of each record type. The full history comes through the API: DNS history.

Most recent redirect domains

No domains found.

Reverse IP neighbours

76.76.21.21 1,099,433 domains · here since 9/15/2026

Domain	On this IP since
zzzzzem.tech	9/17/2026
zzzzzebra.com	9/13/2026
zzzzhi.com	9/17/2026
zzzyyp.cn	9/23/2026
zzzygw.com	9/14/2026
zzzygh.cn	9/19/2026
zzzybzsb.com	9/15/2026
zzzy1688.com	9/18/2026
zzzwd.com	9/19/2026
zzzventurescapital.com	9/19/2026
zzztimer.com	9/13/2026
zzztgjg.cn	9/14/2026
and 1,099,420 more

Sharing an address does not always mean sharing a server: on a CDN or a large hosting platform, millions of unrelated domains answer on the same few addresses. We measured how far that goes in Half the web sits on 276 IP addresses. The complete list of neighbours, also for an IP address, comes through the API: reverse IP lookup.

Dive into our data, search now!