What powers ludlums.com?
Last seen Sep 2026 · 30 technologies across 18 categories
Advertising
Microsoft Advertising
since Feb 2021
Analytics
CallRail
since Feb 2022
Google Analytics
since Aug 2018
CDN
Cloudflare
since Sep 2024
Google Hosted Libraries
since Feb 2022
CMS
Joomla
since Aug 2018
CRM
Zoho
since Sep 2026
Font scripts
Font Awesome
since Aug 2018
Google Font API
since Aug 2018
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2026
PWA
since Sep 2026
PaaS
SiteGround
since Apr 2026
Programming languages
Rich text editors
Quill
since Sep 2026
Security
Tag managers
Google Tag Manager
since Mar 2020
UI frameworks
Bootstrap
since Aug 2018
Web servers
Nginx
since Apr 2026
Webmail
Microsoft 365
since Nov 2024
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 67% desktop
- 33% phone
United States
India
Mexico
Canada
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.39 / 10 · ranked #1,013,117 of all domains
41 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United Kingdom)
- CDN: Google
- Weight: 8.6 MB · 110 requests
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Ludlum Measurements
- Founded: 1962
- Industry: Arts and entertainment (declares
Event) - Country: United States
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Google Cloud (34.174.248.68)
- DNS: Cloudflare DNS
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (soft fail), DMARC reject
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 6,987,425, 10 hosts
- Verified with: Google, Zoho
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ludlums.com | 21 |
| openhouse.ludlums.com | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Zoho Sep 2026
- dropped Apache HTTP Server May 2026
- detected Nginx Apr 2026
- detected SiteGround Apr 2026