What powers 
empirical.co?
Last seen Sep 2026 · 43 technologies across 17 categories
Analytics
CDN
Ecommerce
Font scripts
Hosting
Issue trackers
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
Payment processors
Performance
Security
Shopify apps
Tag managers
Video players
Webmail
AI Crawlers
Restricts 2 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- meta-externalagent Restricted
User-request fetchers
- meta-externalfetcher Restricted
The other 31 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- llms-full.txt found
- ai.txt not found
- Sep 2026 meta-externalagent added to robots.txt
- Sep 2026 meta-externalfetcher added to robots.txt
AI Crawlers
2 of 33 AI crawlers restricted
Standards: llms.txt, llms-full.txt
Audience
- 55% phone
- 45% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.13 / 10 · ranked #491,278 of all domains
139 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 20.4 MB · 300 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (23.227.38.68)
- DNS: GoDaddy DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 2,273,486, 7 hosts
- Verified with: Brevo, Google, Klaviyo, Meta Business
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.empirical.co | 32 |
| empirical.co | 31 |
| us.empirical.co | 18 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Google Font API Nov 2025
- detected Priority Hints Nov 2025