What powers s4sstl.org?
Last seen Sep 2026 · 19 technologies across 11 categories
Analytics
Authentication
CDN
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
Security
Tag managers
UI frameworks
Web frameworks
AI Crawlers
Blocks 13 of 33 AI crawlers we track by name in its robots.txt, restricts 2 more. Checked Sep 2026.
Training crawlers
- AI2Bot Blocked
- Applebot-Extended Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- Google-CloudVertexBot Blocked
- GPTBot Blocked
- ImagesiftBot Blocked
- meta-externalagent Blocked
- PanguBot Blocked
- Webzio-Extended Blocked
Search and AI assistants
- YouBot Blocked
- OAI-SearchBot Restricted
User-request fetchers
- ChatGPT-User Restricted
The other 18 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 checked
- ai.txt not checked
AI Crawlers
13 of 33 AI crawlers blocked
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.40 / 10 · ranked #36,747,150 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 0.8 MB · 33 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- DNS: Cloudflare DNS
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 31,919,421, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
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Recent changes
- dropped Bootstrap Jul 2026