What powers sparc.science?
Last seen Aug 2026 · 24 technologies across 15 categories
Analytics
CDN
CMS
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Programming languages
Security
Tag managers
UI frameworks
Video players
Webmail
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Search and AI assistants
- PetalBot Blocked
The other 32 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 llms.txt removed
- Sep 2026 petalbot added to robots.txt
AI Crawlers
1 of 33 AI crawlers blocked
Audience
- 52% phone
- 48% desktop
Germany
United States
Austria
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #319,833 of all domains
41 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.2 s |
| INP | 75 ms |
| CLS | 0.8 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- CDN: Amazon CloudFront
- Weight: 17.5 MB · 159 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Aug 2026.
Subdomains
| Host | Techs |
|---|---|
| docs.sparc.science | 18 |
| sparc.science | 14 |
Full technology history →
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Recent changes
- dropped Cowboy Dec 2025
- dropped Erlang Dec 2025
- dropped MailChimp Dec 2025
- dropped Cloudflare Bot Management Nov 2025