What powers sfll.org?
Last seen Sep 2026 · 28 technologies across 16 categories
Advertising
Criteo
since Aug 2023
DoubleClick for Publishers (DFP)
since Jul 2019
Google Publisher Tag
since Jul 2021
ID5
since Oct 2023
OpenX
since Apr 2022
Analytics
Pendo
since Dec 2023
Snowplow Analytics
since Aug 2023
CDN
CMS
DNN
since Dec 2023
Cookie compliance
OneTrust
since Dec 2025
Customer data platform
Segment
since Dec 2023
Google Workspace
since Dec 2023
Sendgrid
since Apr 2025
Font scripts
Google Font API
since Mar 2026
JavaScript libraries
jQuery Migrate
since Dec 2023
Load balancers
Amazon ELB
since Dec 2023
Miscellaneous
HTTP/3
since Dec 2023
PaaS
Amazon Web Services
since Feb 2023
Performance
Priority Hints
since Sep 2026
Security
Cloudflare Bot Management
since May 2022
reCAPTCHA
since Jul 2019
Tag managers
Google Tag Manager
since Jul 2019
Web frameworks
Microsoft ASP.NET
since Dec 2023
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 73% desktop
- 27% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.83 / 10 · ranked #4,175,753 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| CLS | 0.1 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 15.2 MB · 282 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (104.21.26.254, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (hard fail), DMARC quarantine
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 6,984,763, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon S3 Sep 2026
- detected Priority Hints Sep 2026
- detected OpenX Aug 2026
- detected reCAPTCHA Aug 2026
- detected HTTP/3 Jun 2026
- dropped OpenX Jun 2026
- dropped reCAPTCHA Jun 2026
- dropped Google Analytics Apr 2026
- dropped New Relic Apr 2026
- dropped 33Across Jan 2026
- detected OneTrust Dec 2025
- dropped HTTP/3 Nov 2025