What powers 
jbkempf.com?
Last seen Aug 2026 · 9 technologies across 8 categories
Font Scripts
Google Font API
since Jul 2016
JavaScript Frameworks
Miscellaneous
Open Graph
since May 2026
PWA
since Jun 2023
Programming languages
Static site generator
Web Frameworks
Web Servers
Nginx
since Jul 2016
Widgets
Wheelio
since Oct 2021
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 51% phone
- 49% desktop
France
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.66 / 10 · ranked #377,505 of all domains
138 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 0.5 MB · 9 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on FASTMAILPTYLTD-AS-AP Fastmail Pty Ltd (103.168.172.37)
- DNS: Fastmail
- Email: Fastmail
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 529,254, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.jbkempf.com | 6 |
| jbkempf.com | 4 |
Full technology history →
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Recent changes
- dropped AOS Jun 2026
- dropped Tailwind CSS Jun 2026
- dropped YouTube Jun 2026
- detected Open Graph May 2026
- dropped Glide.js Feb 2026
- dropped Moment.js Feb 2026