What powers sfaa-astronomy.org?
Last seen Sep 2026 · 20 technologies across 11 categories
Analytics
Cloudflare Browser Insights
since Feb 2026
Google Analytics
since Mar 2023
CDN
Cloudflare
since Feb 2026
Google Workspace
since Mar 2023
Sendgrid
since Sep 2025
Font scripts
Google Font API
since Feb 2026
JavaScript libraries
Miscellaneous
HTTP/3
since Oct 2025
Open Graph
since Sep 2025
Programming languages
Security
HSTS
since Mar 2023
UI frameworks
Web frameworks
CodeIgniter
since Sep 2025
Web servers
Apache HTTP Server
since Jun 2019
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
- Sep 2026 * removed from robots.txt
- Sep 2026 amazonbot removed from robots.txt
- Sep 2026 applebot-extended removed from robots.txt
- Sep 2026 meta-externalagent removed from robots.txt
- Sep 2026 bytespider removed from robots.txt
- Sep 2026 ccbot removed from robots.txt
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.48 / 10 · ranked #912,051 of all domains
37 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| CLS | 0 |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 6.0 MB · 75 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (104.21.17.84, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 7,694,757, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| sfaa-astronomy.org | 12 |
| www.sfaa-astronomy.org | 12 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Amazon S3 Sep 2026
- dropped Amazon Web Services Sep 2026
- dropped CodeMirror Sep 2026
- dropped core-js Sep 2026
- dropped jsDelivr Sep 2026
- dropped Lightbox Sep 2026
- dropped PayPal Sep 2026
- dropped PWA Sep 2026
- dropped reCAPTCHA Sep 2026
- dropped Webpack Sep 2026
- dropped HTTP/3 Dec 2025
- dropped LiteSpeed Dec 2025