What powers 
jacobsen.com?
Last seen Aug 2026 · 35 technologies across 19 categories
Advertising
Analytics
CDN
CMS
Cookie compliance
Databases
Ecommerce
JavaScript frameworks
JavaScript libraries
Live chat
Marketing automation
Miscellaneous
PaaS
Programming languages
Security
Tag managers
Video players
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 51% phone
- 49% desktop
United States
Canada
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.69 / 10 · ranked #767,067 of all domains
79 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 1.8 MB · 51 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Jacobsen Manufacturing
- Founded: 1900
From Wikidata (CC0).
Infrastructure
- Hosted on Microsoft (172.177.4.141)
- DNS: att.net
- Email: no MX record returned
- Email security: SPF (hard fail)
- SSL: DigiCert, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 3,017,049, 4 hosts
- Verified with: Google, Meta Business
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| shop.jacobsen.com | 23 |
| www.jacobsen.com | 19 |
Full technology history →
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Recent changes
- dropped Modernizr Apr 2026
- dropped Linkedin Insight Tag Dec 2025
- dropped Lucky Orange Dec 2025
- dropped Microsoft Clarity Dec 2025