What powers scrap-sf.org?
Last seen Oct 2026 · 9 technologies across 6 categories
Analytics
Google Analytics
since May 2021
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Closure Library
since Oct 2023
Marked
since Jul 2026
Miscellaneous
Open Graph
since Sep 2022
Webmail
Google Workspace
since Aug 2022
Widgets
FlippingBook
since Sep 2023
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 62% desktop
- 38% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.64 / 10 · ranked #380,801 of all domains
110 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Google
- Weight: 17.5 MB · 56 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Sep 2002 (24 years) via Squarespace Domains II LLC, renews Sep 2027
- Hosted on Google (216.239.32.21)
- DNS: Google Cloud DNS
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 2,098,624, 2 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected FlippingBook Oct 2026
- detected Marked Jul 2026
- detected Closure Library Jan 2026
- dropped Google Sites Dec 2025